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Qatar Green Building Conference 2016 ߝ The Action
- Conference date: 13-15 Nov 2016
- Location: Doha, Qatar
- Volume number: 2016
- Published: 09 November 2016
1 - 20 of 46 results
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Case study of water sustainability assessment for light industry-based projects in Qatar
Authors: Sailatha Theagaraj, Zaric Mariano Aclan and Radhia MchirguiThe conventional mixed-use projects usually provide a mixture of residential, commercial, cultural and institutional uses. Industrial zones are traditionally considered as an industrial district for sustainability assessments. However, this paper aims to provide a detailed case study on water sustainability levels achieved and the score achievement strategy deployed by light industry-based projects in Qatar as part of their Global Sustainability Assessment System (GSAS) Certification. The sustainability assessments were based on the indigenous and the globally acclaimed GSAS developed by the Gulf Organization for Research and Development (GORD). The assortment observed in these projects with respect to their variations in size, diversity in infrastructure and scope of the project aids in putting forth the ways by which water sustainability can be efficiently achieved in the region, when similar projects are designed. It is highly important to understand how our current water sustainability benchmarks are actually interpreted into the projects through a practical study of their GSAS score achievement strategy. These case studies may even pave ways and inspire ideas towards a higher point of reference for water sustainability and improve our water conservation patterns.
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Introduction to the Living Building Challenge
More LessI am working with the International Living Future Institute as an Ambassador Presenter, and recently I have become a Collaborative Facilitator in the Ambassador Network, providing educational resources for the Living Building Challenge. The Living Building Challenge is the visionary path to a restorative future, the description of which is provided by the Institute on the organization's website: www.livingbuildingchallenge.org. The Institute describes the Living Building Challenge in the following way.
The Living Building Challenge defines the most advanced measure of sustainability in the built environment possible today and acts to minimize the gap between current limits and ideal solutions. This certification program covers all buildings at all scales and is a unified tool for transformative design, allowing us to envision a future that is socially just, culturally rich, and ecologically restorative. Whether your project is a single building, a park, a college campus, or even a complete neighborhood community, the Living Building Challenge provides a framework for design, construction, and the symbiotic relationship between people and all aspects of the built environment. The Institute has provided a very informative and inspiring one-hour PowerPoint presentation for ambassador presenters to use it as an educational tool. As this is a volunteer effort, the program was free of cost. The attendees are also eligible for one AIA/GBCI Learning Unit.
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Performance evaluation of algae (Chlorella vulgaris) for the treatment of textile waste water and biofuel extraction for energy conservation
Authors: Sana J. Ansari, Hammad Ghaffar and Ehsan AliIn the past few decades, rapid industrialization has greatly contributed to the increase in environmental pollution and the decline in several energy resources. Greenhouse gas accumulation, emissions of particulate matter into the atmosphere and the release of untreated wastewater from different industries are serious threats to a sustainable environment. In particular, the wastewater from the textile industry is highly toxic and unable to be reused for industrial processes and irrigation. This toxic water ultimately makes its way to rivers and oceans and adversely affects the aquatic life. This paper focuses on the treatment of industrial wastewater obtained immediately after the dying process by algae growth, which leads to a significant decline in COD (chemical oxygen demand), total nitrogen/carbon, alkalinity and turbidity levels. Samples of wastewater from the textile industry were subjected to the treatment with fresh water algae (Chlorella vulgaris) and algal stains were found in heterotrophic mode. After about six days, algae were properly cultured on textile wastewater. It was found that 54% nitrogen, 24–28% alkalinity and 78–82% of COD were removed, allowing the treated wastewater to be used for other industrial processes. The cultured algae were further harvested (using centrifugation) for the extraction of biofuel that could be used as an alternative energy source for different industrial processes. This method of treating textile wastewater is not only cost-effective but also yields far better results for reducing water toxicity and providing an alternative fuel source.
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Qatar 2022 World Cup and its legacies: How to promote sustainable and livable open spaces in the city of Doha through mega sports events?
More LessWith the aim of diversifying its economy and develop itself as a tourist destination, in recent years, Qatar has hosted many international sports events and will host the 2022 FIFA World Cup. Doha, Qatar's capital city, is literally under construction, and is facing important changes in terms of transportation, infrastructure, and sports facilities. However, past experiences have shown that the outcomes of staging major sports events are mostly harmful, and their planned legacies last only for a short time. This trend becomes even stronger when considering how sports facilities and their surroundings are utilized after the event is over. Usually, sports venues become white elephants, and their neighborhoods islands of placelessness, underutilized and abandoned pieces of the city. What will be left after the World Cup? How to leverage this event as a moment of experimentation and sustainable growth of its capital city, Doha? In this context, the aim of this research is to identify strategies to plan and maximize the post-event usage of event sites and venues, and make their neighborhoods more livable and sustainable. The research has a specific focus on the city of Doha, which hosted the 2006 Asian Games and will host the 2022 FIFA World Cup. It starts with a critical review of relevant precedents from the Western and the Eastern world, and then continues with an in-depth analysis of three selected case studies, namely the cities of London, Sochi, and Rio de Janeiro that recently hosted major sports events. Finally, the research focuses on the context of Doha, investigating its public spaces and planning system, and analyzing the government's legacy plans for the 2022 World Cup. The expected results include a set of guidelines and recommendations to help Doha transform its sports venues and event sites into lasting, sustainable, and livable public open spaces, and, more generally, to define strategies for achieving successful legacies from the host of mega sports events. The results of this research can also be applied to other Gulf cities that share many similarities in terms of their urban form and planning systems, and that face for the first time the challenges and opportunities offered by the host of mega events.
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Towards stupid cities revisiting the authenticity of smart cities conceptual premises
More LessObserving the status of a good number of cities around the world would reveal a new kind of urban competition labeled “smart cities”. The concept of smart city emerged more than a decade ago. It first appeared in the literature of architecture and planning around 1999–2000. The concept has emerged due to the collective efforts of digital designers, economists, and planners, for the purpose of obtaining physical changes based on new technologies used in cities. The most accepted definition of smart city states that it is the ability to exploit digital, information, and communication technologies to improve the quality and performance of the physical urban services, to reduce costs and resource consumption, to be more effective, and to engage with its citizens. The smart city in its current vision makes communication and human interaction inessential or even trivial. This is a real crisis, as some analysts, writers, and specialists have pointed out, that has narrowed the concept of smart cities to the use of information technology, smart phones or smart cards, or smart homes, or anything labeled as smart. Obviously, there is no discussion on how using all these smart devices can contribute to the improvement of urban life and the sustainable future of cities. Therefore, the following questions arise: is the hypothesis that information technology can improve the performance of cities legitimate? Can these technologies actually make the city smarter, and do they make human life better? More importantly, we need a thorough examination of the concept of smart cities to assess their actual impact on quality of life, especially human social divide. Contemporary Middle Eastern and Gulf cities aspire for the new identity of smart cities without substantial assessment that would explore not only their technological dimension but also their impact on the holistic aspects of life. The paper argues for a different perception of the concept of smart city. It might therefore be wrong to describe the city as smart while it is creating a situation of separation, fragmentation, and individualism among communities. Alternatively, we might be more proud of a less smart city that allows its community to interact and integrate. The paper conducts a number of comparative analyses and provides cases from the regional and international context to argue for a more holistic understanding of the swiftly emerging concept of “smart city”.
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CARES Sustainable Constructional Steel Certification scheme
Authors: Lee Brankley and Dave KnightThe expectations of stakeholders across the construction industry's value chain have evolved significantly in light of a greater understanding of sustainability impacts, scientific trends and new legislation. There is a demand for evidence proving that a wide range of issues are being managed in a systematic way leading to improvements in performance. Designers and specifiers are demanding transparent, reliable data and comparable sustainability information about competing construction materials. Standard setting organisations and building rating systems are advancing in their requirements. Third-party certification bodies have responded with improved certification that enables the provision of data collection, auditing and reporting. The CARES Sustainable Constructional Steel (SCS) scheme is applied to reinforcing carbon and stainless steel, structural steel and hot rolled flat steel. Developed with the inputs from a wide range of stakeholders, the accredited scheme is based on foundations of technical specifications, traceability, product quality and the sustainability principles of inclusivity, integrity, stewardship and transparency.
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An Islamic view towards sustainability: The theory and practice of GCC countries
More LessDespite the fact that many public policy issues related to sustainability are usually framed in the form of government initiatives and programs, probably an equally, if not more, important topic, is how to change people's behavior and attitudes. Given the ample challenges that all GCC countries face in terms of water scarcity and finiteness of fossil fuels in the decades (or years) to come, it might be wise that these countries embark on serious efforts in order to ensure changes in people's behavior. Despite the region achieving some of the highest GDP per capita globally, it also ranks the highest in terms of water consumption, electrical consumption, and CO2 emissions per person. In this regard, this research aims at taking a fresh look at how these countries can aim to alter people's behavior through invoking Islamic values and traditions in their pursuit of achieving sustainable development. By doing so, the research hopes to highlight the stark contrast between Islamic values usually put forth by leaders in these countries, while at the same time showing great discrepancies in terms of actual consumption of various resources as reflected in official figures and statistics.
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Evaluation of adaptive facades: The case study of Al Bahr Towers in the UAE
By Shady AttiaThe assessment of adaptive facades presents a barrier in light of the fact that there are no standard assessment techniques to systematically achieve this goal. Most of the available facade performance evaluation systems or frameworks have limited applicability for such advanced building facades. The complexity involved in the evaluation of adaptive or dynamic facades is related to the performance evaluation of facade elements, systems and overall building performance associated with occupant behavior and occupant satisfaction. In this context, we present a case study of an adaptive sunscreen facade to evaluate its performance and occupant behavior. The evaluation focuses mainly on the pre- and post-construction phases of adaptive facades: the design assist phase (including the durability test, visual mockup, onsite mashrabiya mounting and weather stripping), the commissioning phase (field verification and performance testing) and the monitoring phase. The selected project is a 150-meter-high twin tower that stands with a honeycomb-inspired structure and an automated dynamic solar screen that responds to the sun's movement. These solar screens respond dynamically and automatically to the angle of the sun that improves the control over energy consumption, solar radiation and glare with the ability to allow natural light into the building. This paper is part of the research activities of working group 3 of the European COST Action 1403 on “Adaptive Facades”. Different methods were used for evaluation, which include: interviews with the architect, facade engineer, technical control specialist and occupants; reviews of standards and codes; and reviews of energy models and a systematic design process mapping. A documentation of the case study describing the post-construction occupant comfort and facade operation was prepared. The audience of this paper is mainly project managers, architects, building facade engineers as well as facility managers concerned with the process of design, construction and operation of adaptive sunscreen facades. The outcome of this study identifies quantifiable performance indicators and effective strategies for the design and performance evaluation of optimal adaptive facades.
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BIM4Analysis, integrated design, and closing the performance gap
More LessBim4Analysis is a campaign to integrate analytics within the BIM process, enabling those involved in the creation of a building, campus, or entire city models to take advantage of valuable information during design, commissioning and operation. The strategy is concerned with implementing BIM as a mechanism to deliver value, cost and carbon improvement on all projects. The holy grail is a single workflow. From an engineering perspective, this means engineers inputting information into a 3D model format to inform coordination. When the coordinated layout changes, the update becomes seamless and bi-directional. There is currently no robust solution on the market to facilitate this. Engineers use a mix of formats including spreadsheets – uncontrolled, inconsistent; standalone analysis and some integrated analysis. We consider the VE as a single platform for creation and capture of performance data that is usable and useful during design, commissioning and the operational life of the building. Compliance (LEED, Estidama, etc.) is a necessity on most projects. Our solution is to develop a single ‘analysis’ model from the BIM model at the appropriate stages of the project and to run the calculations from that one ‘analysis’ model, thus ensuring that the designers are using the most up-to-date information. When the design changes, the BIM model is again imported, with the relevant data and the various calculations being run again and the results sent back to the BIM models (interoperability). When the project is set up for collaboration and the process is understood, it becomes easier. Building performance analysis is a vital component in designing truly sustainable buildings and cities. By using technology to calculate the impact of different design strategies, architects and engineers can make more informed decisions on elements that play an important role in reducing the energy consumption of a building. Performance analysis software allows designers to virtually test the feasibility of different energy saving strategies and new low-carbon technologies that facilitate very efficient high-performance designs. Unfortunately, building performance analysis is too often only undertaken in the later stages of design compliance rather than incorporated into the process right from the earliest stages. By working together and utilizing building performance analysis software from day 1, architects and engineers can make the biggest impact in terms of designing a high-performing, sustainable building. There are several ways to split the division of labour, from integrating its consideration into architect and engineers job functions or introducing an independent function to the design team. Understanding our analysis at the design stage is only one half of the challenge of creating high–performing, sustainable buildings, the other is understanding how buildings are operating and learning from them. It's all well and good believing that a building is sustainable because it appears to do so at design, but how sustainable is it in reality? How do we know if we aren't checking? We need to correlate building performance against the design to quantify any performance gaps in the same level of detail which we analyse buildings in simulation software.
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Urban morphology and microclimate response – Overview and case study
More LessThe aim of this study is to investigate the urban morphological factors that influence urban microclimate and outdoor thermal comfort in hot semi-arid climate. It explores the main features that influence the urban climate on microclimate scale, in addition to the environmental parameters that affect the thermal comfort and its relevant indices (PMV, PPD, PET). The study presents the assessment of outdoor thermal comfort of urban street canyons for selected locations in traditional and modern neighborhoods representing old and new fabrics of the city of Aleppo (Syria). The assessment of outdoor thermal comfort considered field measurements for selected days in the summer period, along with data derived from microclimate simulations for the same locations using ENVI-met numerical models. The outcome of the study shows that different types of urban morphology have different effects on their thermal conditions as the geometry of the canyons investigated has a strong impact on their thermal behavior, and a significant correlation was observed between the aspect ratio and the sky view factor, on the one hand, and outdoor thermal values, on the other.
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Managing the business of sustainable buildings
By Radwa AminCost and profit are considered the biggest barriers towards sustainable building business. The aim of this article is to shift this perspective by interpreting the building composition of the sustainable business and introducing the differences between the different accounting frameworks associated with both the conventional and sustainable building businesses. To achieve this target, this article compares between the “bottom line” analysis adopted in the conventional building business against the “triple bottom line” utilized in the sustainable building business. The “bottom line” is more associated with how much profit any business generates, whereas the “triple bottom line” accounts for people, planet, and profit. In this context, the sustainable business has a wider vision towards assets and is more accommodative to the future needs of a business. In light of this, it is evident that adequately managing the sustainable building business will positively enhance the overall cost that will lead not only to a definite increase in profit and building assets, with no impact or minor impact on the first cost, but also to a favorable decrease in the running costs. The focal point of this article is to establish that cost and profit are legendary barriers, and contrary to what is currently perceived, there will be a massive drive towards promoting sustainable building business.
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Swiss International School Dubai: Design and simulation of a Minergie building in Dubai
More LessMinergie is a Swiss quality label for buildings developed to ensure comfort, low energy consumption, and healthy indoor environment. It was introduced in 1995, and, today, about 30% of new buildings are Minergie compliant. The campus of the Swiss International Scientific School of Dubai (SISD) is designed to be Minergie compliant. The campus includes a primary school building, an administrative building, a middle high school (MHS)–library–auditorium building, a sport center, and a boarding house. The primary and the administrative building are built. The sport center is under construction while the MHS building is under development.
Except the sport center, the campus is designed to be Minergie compliant. SORANE SA, along with the design team, conducted the preliminary design of primary school and administrative building to be Minergie compliant. We are currently assisting the design team of the MHS, the library and the auditorium building to achieve Minergie certification.
The design is based on achieving comfort and low energy demand through efficient sun protection, highly insulated and tight envelope, heat and moisture recovery on the ventilation system, as well as optimized daylighting of the occupied space.
The primary school building and the administrative building were built and are the first buildings to be certified as Minergie in the Middle East. The simulation of the primary school building showed that the building following the Minergie standards consumed 80% less than a conventional building in Dubai. Moreover, the building ensured a healthy indoor environment, with stable thermal, visual comfort, and low draught conditions due to the low speed ventilation. More importantly, designing the school following the Minergie requirements did not increase the systems' complexity, but rather resulted in low energy demand that reduced the size of the installations.
In this paper, we describe the design procedure of the buildings from the energy perspective and the challenges that we faced to achieve Minergie certification. Advanced simulations were performed to design the envelope and HVAC systems in order to minimize energy consumption. Daylight calculations and dynamic thermal simulations are also discussed in detail. First, the Minergie label is described briefly, followed by the description of its prerequisites and energy targets. Then, the building envelope design procedure is presented. Finally, the HVAC system design is detailed, and the simulation results of the building consumption are presented.
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Indoor environmental quality case study
By Lamya SalemThe office environment has a tremendous impact on employees’ health, productivity and well-being. Considering the fact that employees stay in their offices for a prolonged time, which can extend to more than ten hours in many cases, the office indoor environmental quality (IEQ) can either cause serious health issues or restore the employee's health. Similar to green building rating systems, WELL® Standards have been established to focus solely on the indoor environmental quality. A case study was conducted for a selected office space to assess the office IEQ against WELL® Standards and evaluate the office performance under different WELL® Concepts. For this purpose, a survey was first conducted for the employees in the space under study. This was followed by obtaining actual measurements for the current indoor environment, investigating possible improvements and applying the appropriate improvements. After applying those improvements, the space was reassessed against WELL® Concepts and another survey was conducted to finalize a case study for indoor environmental quality.
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Environmental attitudes and behaviors in sustainability about water use in homes
Authors: Islam M. Obeidat, Saif Obeidat and Manar ObeidatIntroduction: The use of water is a global environmental concern. Understanding factors affecting peoples' behavior is necessary to devise effective water management policies. Water reuse is positively influenced by environmental values, convenience, adequate storage space, simplicity of reuse, feelings of satisfaction when reusing materials, and involvement in society.
Purpose: This paper proposed and tested a conceptual framework to identify the environmental (e.g., attitude toward the environment), situational (e.g., individual knowledge and experience), and psychological (e.g., personality characteristics, perceptions) factors that affect peoples' water management intentions and behaviors in homes.
Problem: Global environmental problems (e.g., water concern) can be effectively addressed by individual lifestyle changes. Unlike reduction and reuse, recycling is not influenced by environmental values; instead, it is viewed as an accepted norm. However, access to recycling facilities or curbside recycling improves participation.
Finding: A strong relationship between intention and behavior was found for all the three water management practices (i.e., reduction, reuse, and recycling). Water reduction was positively influenced by environmental values, increased knowledge of environmental policies, the belief that water is a threat to personal well-being, and feelings of personal responsibility. Older age groups were more likely to reduce water than younger age groups, possibly because they maintained lifestyles developed during their experiences and culture. Ease of recycling (e.g., presence of curbside recycling) was associated with diminished intentions to employ water use reduction and reuse strategies, possibly because individuals who recycled felt they had fulfilled their water management responsibilities. Designers should:
– enact curbside recycling methods and techniques in homes to decrease water use;
– recognize how factors beyond awareness and knowledge (e.g., water values) affect water management practices;
– understand that different household water management practices (i.e., reduction, reuse, and recycling) are influenced by different factors (e.g., environmental attitudes).
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Are we sustainable? Promoting a culture of sustainability in planned communities with a sustainability focus
Authors: Nermin Dessouky, Yara Moustafa, Richard Tutwiler, Chelsea Estevez and Alan MeierNew communities built with the aim of achieving sustainability are becoming increasingly common in Europe, North America, and Japan. These communities have created infrastructures designed for sustainability, for example, using eco-friendly building materials, energy-efficient design, renewable energy, integrated transportation solutions, and solid waste and wastewater management. Regardless of their location, these communities have found that they must also take into account how social behavior contributes to a sustainable lifestyle. Recently, the sustainability phenomenon has taken hold in the Middle East and North Africa. Purpose-built sustainable communities are now being designed, constructed, and operated in several countries, including The Sustainable City in Dubai, Msheireb in Doha, El Gouna in Egypt, and Masdar in Abu Dhabi. Other communities with less comprehensive, albeit significant, sustainability commitments, are also emerging. This paper studies global sustainable community models and their different approaches towards engendering sustainable behavior among residents. Most of these communities have operated for several years; therefore, they can provide both lessons and inspiration for the rising communities in the Middle East. This paper compiles best practices for promoting a culture of sustainability from the research on global communities, plus early findings from investigations of emerging communities in the Middle East. For example, residents must be actively engaged to connect with and work towards achieving a sustainable community; mere awareness is rarely enough to incite a significant behavioral change. This paper presents a compilation of recommendations for how communities in the Middle East and North Africa can operationalize the environmental, economic, and social dimensions of sustainability. A sound technical infrastructure is important but environmental, economic, and social sustainability cannot be realized without changing the lifestyle and behavior of the community.
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Lean practice. The human mind sustainability!
More LessThis paper presents the value of people and sustainable minds in Lean transformation for achieving green business development. Human resources management is one of the main reasons for the success or failure of organizations. Therefore, adding value to their work processes and eliminating waste will reflect on the profit of the whole firm, and will accordingly reflect on the development and sustainability of the whole construction industry. The role of human resources in implementing a new process is not only at work but in people's lives as well by changing their mindsets, attitudes, and behaviors sustaining the continuous improvement. This research is divided into two parts: theoretical and practical. The theoretical part will explain Lean concept definition, values and wastes, benefits, challenges faced, and steps for successful implementation. It will also provide a clear vision on how to choose Lean champions and Lean coordinators at any organization. The practical part will present a case study for a successful Lean transformation in a design/construction firm, showing the effect of implementing Lean on people's minds, behavior, and work attitudes and how it affects projects, as well showing the roles and responsibilities of different human resources in that Lean transformation and a clear method and steps for Lean implementation in construction organizations based on a company's experience and observations reducing wastes and adding value to every single work process within the organization achieving the three-part goal of better, cheaper, and faster projects.
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Driving measurable change for sustainable buildings and cities
More LessPerformance analysis is, and will increasingly become more so, a vital component in designing truly sustainable buildings, eco-cities and communities; it provides a measurable understanding of the impact of different strategies on energy consumption and other environmental metrics. Analysis software allows designers to ‘virtually’ test the feasibility of different energy saving strategies and new technologies and facilitate low-energy/low-carbon designs. It also allows quantification of savings against targets, plus measurement and verification for operational and control optimisation. It takes into consideration climate, use, design and systems operation. The requirement to quantify, justify and optimise design decisions in an informed and sustainable way is becoming increasingly important. Performance analysis exposes and cuts through greenwash to get to the heart of creating high-performance buildings that are also economically viable. With the rise in the use of green rating systems such as GSAS, LEED and Estidama and the need to meet government energy/carbon reduction targets, there has been a major shift towards Integrated Project Delivery (IPD) using performance analysis tools. This is widely considered as the route towards delivering energy efficiency in today's buildings. For almost two decades, IES have been pushing the ethos of integrated design and incorporation of performance analysis right from the earliest new-build and retrofit stages as the route to achieving truly sustainable, low-energy structures. Consequently, we find ourselves today still working at the leading edge of building science, investigating how analysis plays a vital role in cutting through greenwash to deliver measurable sustainability, be it designing or analysing a product range, a regulatory system, a building or entire communities/eco-cities. Cities may be the major polluters, but they are substantially more efficient than having the same population dispersed over that wide area. Energy, water and other services can be provided more efficiently and their use can be minimised. Our sustainable future is in eco-cities that use technology in a smart way, incorporating real-time dynamic control to optimise the use of energy, water and other resources. Performance analysis and predictive interrogation of data will play a key role in this. An emerging vision is that each building would be designed or refurbished using state-of-the-art 3D simulation to quantify, optimize and verify its performance. The building simulation model would then be used to commission and subsequently control the building. However, in order for it to be a true eco-city, it would not be enough for each building to be independently efficient. There would need to be a master system to optimize city-wide energy and water consumption in coordination with the relevant utilities. This session will emphasise the importance of the role that integrated performance analytics has in creating truly sustainable buildings by taking the audience through some real-life case studies. It will also explore the role that performance analytics can play in creating sustainable cities for the future.
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An assessment framework supporting decision-making regarding the environmental performance of building elements and buildings
Authors: Carolin Spirinckx, Wai Chung Lam, Wim Debacker, Karen Allacker and Roos ServaesBackground: At the European level, there are two main frameworks for determining the environmental impacts of building solutions, i.e. EN 15804:2012+A1:2013 and EN 15978:2011 (sustainability of construction works, environmental product declarations, core rules for the product category of construction products and calculation method), and the Product Environmental Footprint (PEF) developed by the European Commission (EC DG Environment). Each of these frameworks has its own goal and corresponding methodological choices. Although the EN standards have their main focus on the built environment, they only consider seven environmental impact categories while several scientific studies have indicated the need for a broader environmental perspective, especially when assessing the environmental performance of buildings. In 2013, the European Commission published the PEF methodology. The aim of proposing the EU-wide PEF methodology is to measure the environmental performance of products and to encourage Member States and the private sector to take them up. The PEF methodology considers 14 environmental impact categories that are not only specifically developed for the construction sector.
Assessment framework for the environmental performance of building elements and buildings:
VITO and KU Leuven have developed a framework for specific use in the Belgian building context with the aim to get insights into the environmental performance of different kinds of building element variants and buildings as a whole. That framework deviates from the EN standards and includes a broader list of environmental impact categories (PEF). Up until now, it has helped to gain insights into the environmental performance of building materials (to be) used in Belgian building (element) solutions. After proving its added value through different policy and design-oriented research projects, the assessment framework was updated in 2015 to comply with the EN standards and latest evolutions on PEF. The main difference between this assessment framework and the European framework lies in the calculation of aggregated scores through environmental external costing. By doing so, the environmental performance of building elements and buildings can be expressed by one figure, which makes decision-making processes more straightforward. A comparative study proves that the assessment framework is a valuable alternative for the EN standards and in agreement with the PEF framework. The development of user-friendly designer and policy instruments to assess Belgian buildings is the next major development step to be taken.
Presentation at the QGBC Conference 2016:
The presentation at the QGBC Conference 2016 conference will focus on the methodology development. In addition, the presentation will illustrate the application of the methodology by presenting some results of the main important building element variants. By November 2016 when the QGBC Conference 2016 will take place, it is expected that the first results of the development of the designer tool for architects and building contractors and the policy supporting tool for the Belgian government will be ready for presentation.
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Implementation of rooftop solar PV in Qatar through the roof rental business model
More LessQatar is an emerging renewable energy market in the MENA region and has made progress in recent years. The natural gas-rich state has abundant solar energy resources and a national vision to generate 2% of its electricity from solar energy by 2020. A number of green businesses in Qatar are operating at different segments of the solar value chain. However, deployment of residential and commercial solar PV in Qatar still remains very low. One reason for this is the lack of incentives for the public and businesses to adopt solar energy technologies because of the high capital cost and high per kWh price as compared to the utility power. This study proposes the use of the roof rental business model by green businesses in Qatar as a method for increasing public support for solar in Qatar and generating income for green businesses. The study reviews the current status of solar energy deployment in Qatar and the major business players in the solar value chain. The roof rental business model is discussed in detail and recommendations are given on how to implement it. The study also addresses the feed-in-tariff incentive as an essential pillar in the roof rental business model. Finally, this study concludes that the roof rental business model can create massive public support for solar energy in Qatar provided that the feed-in-tariff policy is implemented.
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Sustainability aspects of constructions based on clay roof tiles and bricks
More LessThe presentation at the QGBC Conference 2016 will focus on the importance that the Belgian clay roof tile and brick sector attaches to sustainability aspects that are related to their business and products, and focuses on a recently performed LCA (life cycle assessment) and EPD (Environmental Product Declaration) project. This project is part of a broader platform, where the three pillars of sustainability finally meet each other. During the presentation at the QGBC Conference 2016, first, I will present the incentives of the sector to apply the concept of life-cycle thinking to modern business practices, with the aim to manage the total life cycle of their products and services towards a more sustainable construction and housing. Then, I will focus on the results of the LCA in which four clay products are analysed from the cradle to the grave: clay roof tiles, traditional clay blocks, newly developed clay blocks and facing bricks. The results have been summarised in EPDs. Additional comparative studies have also been carried out to benchmark the clay products versus main competing materials, at the building element level, i.e. roofs and walls. Special emphasis will be given during the presentation to the importance of LCA for the clay sector, the sector approach, the procedures for data collection, the importance of stakeholder involvement, the results of the LCAs and the comparative assessment.
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