Pub Date : 2020-10-01DOI: 10.1080/17508975.2018.1562414
Negar Heidari Matin, A. Eydgahi
ABSTRACT A responsive facade system is considered a major component of high-performance building envelope that is capable of responding to environmental stimuli and aims to improve occupants’ comforts and energy consumption. While building design-related research have addressed the technical and design aspects of responsive facades, very limited historical studies have been conducted on the evolution of such systems. This paper investigates and classifies in a chronological manner the historical factors involved in the evolution of design and development of responsive facade systems. The influential factors are classified into a set of sociocultural, technological, political, environmental and economic factors originating from revolutionary changes in art, technology and building construction since late nineteenth century. The historical timeline presented is intended to serve as a helpful resource for researchers and educators in research and teaching activities. The formulated timeline can be utilized to track the pattern of current developments and predict what might be expected in the future. While the focus of the paper is on individual architecture, the trend of the recent facade developments as presented in the timeline suggests that responsive facades will be possibly implemented for urban-scaled development of smart neighborhoods and/or cities in the future.
{"title":"Factors affecting the design and development of responsive facades: a historical evolution","authors":"Negar Heidari Matin, A. Eydgahi","doi":"10.1080/17508975.2018.1562414","DOIUrl":"https://doi.org/10.1080/17508975.2018.1562414","url":null,"abstract":"ABSTRACT A responsive facade system is considered a major component of high-performance building envelope that is capable of responding to environmental stimuli and aims to improve occupants’ comforts and energy consumption. While building design-related research have addressed the technical and design aspects of responsive facades, very limited historical studies have been conducted on the evolution of such systems. This paper investigates and classifies in a chronological manner the historical factors involved in the evolution of design and development of responsive facade systems. The influential factors are classified into a set of sociocultural, technological, political, environmental and economic factors originating from revolutionary changes in art, technology and building construction since late nineteenth century. The historical timeline presented is intended to serve as a helpful resource for researchers and educators in research and teaching activities. The formulated timeline can be utilized to track the pattern of current developments and predict what might be expected in the future. While the focus of the paper is on individual architecture, the trend of the recent facade developments as presented in the timeline suggests that responsive facades will be possibly implemented for urban-scaled development of smart neighborhoods and/or cities in the future.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"12 1","pages":"257 - 270"},"PeriodicalIF":2.3,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2018.1562414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45316096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-01DOI: 10.1080/17508975.2019.1577212
Danyal Ahmed
ABSTRACT Tools are culmination of the stages of a civilization; being the immediate expression of progress, assistance, freedom and a manifestation of health – both in terms of moral and morale. Artificial Intelligence (hereinafter AI) – a tool precedenting the fourth industrial revolution – is boasting tremendous transdisciplinary transformations in Japan helping to cater the declining birth rate and rapidly aging society resulting in acute labor shortage in the sectors of transportation – as self-driving cars, ‘CarriRo Delivery’ robots and drones for postal deliveries to mountainous remote islands, safety and resilience – as for the early detection of earthquakes and tsunamis, healthcare – as AI-based medical equipment that uses machine learning to identify signs of disease and locate lesions in medical images, education – as the use of AI-robots to teach English, culture – as the AI-equipped popular robotic dog ‘Aibo’ triggers successful emotional reactions in humans, and in the sector of technology – as self-checkout systems at convenience stores, are just a few of the revolutionizing debuts dubbed as a ladder for economic supremacy in the second largest economy of East Asia – Japan. Is there any possible relationship between AI and contemporary Japanese architecture? What is the influence of emerging AI innovations on the discipline of contemporary architectural design? What kind of architectural spaces we are going to inhabit in the age of AI? This paper attempts to propose answers to these questions by limiting its scope to Japanese contemporary architectural designing.
{"title":"Artificial intelligence and contemporary Japanese architecture – any relationship?","authors":"Danyal Ahmed","doi":"10.1080/17508975.2019.1577212","DOIUrl":"https://doi.org/10.1080/17508975.2019.1577212","url":null,"abstract":"ABSTRACT Tools are culmination of the stages of a civilization; being the immediate expression of progress, assistance, freedom and a manifestation of health – both in terms of moral and morale. Artificial Intelligence (hereinafter AI) – a tool precedenting the fourth industrial revolution – is boasting tremendous transdisciplinary transformations in Japan helping to cater the declining birth rate and rapidly aging society resulting in acute labor shortage in the sectors of transportation – as self-driving cars, ‘CarriRo Delivery’ robots and drones for postal deliveries to mountainous remote islands, safety and resilience – as for the early detection of earthquakes and tsunamis, healthcare – as AI-based medical equipment that uses machine learning to identify signs of disease and locate lesions in medical images, education – as the use of AI-robots to teach English, culture – as the AI-equipped popular robotic dog ‘Aibo’ triggers successful emotional reactions in humans, and in the sector of technology – as self-checkout systems at convenience stores, are just a few of the revolutionizing debuts dubbed as a ladder for economic supremacy in the second largest economy of East Asia – Japan. Is there any possible relationship between AI and contemporary Japanese architecture? What is the influence of emerging AI innovations on the discipline of contemporary architectural design? What kind of architectural spaces we are going to inhabit in the age of AI? This paper attempts to propose answers to these questions by limiting its scope to Japanese contemporary architectural designing.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"12 1","pages":"295 - 308"},"PeriodicalIF":2.3,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2019.1577212","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42215280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-10-01DOI: 10.1080/17508975.2019.1567456
Yifang Si, Junqi Yu, Nan Wang, Xisheng Ding, Longfei Yuan
ABSTRACT There have been more concerns over energy resource depletion and indoor comfort improvement along with the increased time spend in a building. Building operation requires more energy in the spaces of high occupancy density in public buildings in summer because most energy has been consumed to make the indoor environment comfortable. Therefore, there is a conflicting issue for optimization, which is minimum energy consumption vs. maximum indoor comfort. In this paper, the indoor comfort model was established based on the weights of the thermal environment and air quality. The indoor air temperature, indoor relative humidity and indoor CO2 concentration as KPI (Key performance indicators) are optimized dynamically according to different outdoor meteorological parameters and different indoor occupancy density by an improved multi-objective optimization method of Non-dominated Sorting Genetic Algorithm II (NSGA-II). A single suitable solution from the non-inferior solutions is selected by the method of fuzzy comprehensive decision. The single solution of those KPI can be used as the set point of air-conditioning controller. A case study was carried out and the corresponding simulation of optimization of energy and comfort was presented. The results showed that the methodology can achieve the maintenance of indoor comfort and energy consumption reduction.
{"title":"Research on evaluation and optimization of sustainable indoor environment of public buildings in Xi’an in summer","authors":"Yifang Si, Junqi Yu, Nan Wang, Xisheng Ding, Longfei Yuan","doi":"10.1080/17508975.2019.1567456","DOIUrl":"https://doi.org/10.1080/17508975.2019.1567456","url":null,"abstract":"ABSTRACT There have been more concerns over energy resource depletion and indoor comfort improvement along with the increased time spend in a building. Building operation requires more energy in the spaces of high occupancy density in public buildings in summer because most energy has been consumed to make the indoor environment comfortable. Therefore, there is a conflicting issue for optimization, which is minimum energy consumption vs. maximum indoor comfort. In this paper, the indoor comfort model was established based on the weights of the thermal environment and air quality. The indoor air temperature, indoor relative humidity and indoor CO2 concentration as KPI (Key performance indicators) are optimized dynamically according to different outdoor meteorological parameters and different indoor occupancy density by an improved multi-objective optimization method of Non-dominated Sorting Genetic Algorithm II (NSGA-II). A single suitable solution from the non-inferior solutions is selected by the method of fuzzy comprehensive decision. The single solution of those KPI can be used as the set point of air-conditioning controller. A case study was carried out and the corresponding simulation of optimization of energy and comfort was presented. The results showed that the methodology can achieve the maintenance of indoor comfort and energy consumption reduction.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"12 1","pages":"271 - 283"},"PeriodicalIF":2.3,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2019.1567456","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46879005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-12DOI: 10.1080/17508975.2020.1806019
H. Elhegazy
ABSTRACT This research aims to introduce the review of the researches that covered the benefits of applying the value engineering in the construction industry specially the multi-story buildings. Multi-story buildings are part of a relatively specialized field of design and construction projects. They deal not only with a building's design and creation but also with its ongoing operation and maintenance. Because a large portion of the money and time expended by both the public and private sectors is used for construction, especially multi-story buildings, it is essential for owners and builders to think about how to optimize the balance between cost and function as they make major decisions about multi-story buildings. The concept of value engineering has evolved significantly and has been expanded over the years; today, numerous standards and related manuals exist. Various engineering databases, international journals, and conference proceedings were searched. International journals were searched for relevant research papers. This paper provides perspectives on value engineering in the contemporary structural engineering context in order to frame the breadth and multiple dimensions it encompasses, to summarize recent activities on selected relevant topics, and to highlight possible future directions in research and implementations.
{"title":"State-of-the-art review on benefits of applying value engineering for multi-story buildings","authors":"H. Elhegazy","doi":"10.1080/17508975.2020.1806019","DOIUrl":"https://doi.org/10.1080/17508975.2020.1806019","url":null,"abstract":"ABSTRACT This research aims to introduce the review of the researches that covered the benefits of applying the value engineering in the construction industry specially the multi-story buildings. Multi-story buildings are part of a relatively specialized field of design and construction projects. They deal not only with a building's design and creation but also with its ongoing operation and maintenance. Because a large portion of the money and time expended by both the public and private sectors is used for construction, especially multi-story buildings, it is essential for owners and builders to think about how to optimize the balance between cost and function as they make major decisions about multi-story buildings. The concept of value engineering has evolved significantly and has been expanded over the years; today, numerous standards and related manuals exist. Various engineering databases, international journals, and conference proceedings were searched. International journals were searched for relevant research papers. This paper provides perspectives on value engineering in the contemporary structural engineering context in order to frame the breadth and multiple dimensions it encompasses, to summarize recent activities on selected relevant topics, and to highlight possible future directions in research and implementations.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"14 1","pages":"544 - 563"},"PeriodicalIF":2.3,"publicationDate":"2020-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1806019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48563552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-09-12DOI: 10.1080/17508975.2020.1803788
T. Tsang, K. Mui, L. Wong, W. Yu
ABSTRACT An accurate indoor environmental quality (IEQ) model is essential to design and maintain a comfortable indoor environment. Due to the complexity of IEQ modelling and subjective nature of IEQ responses, there is a need to update the subjective–objective relationship of IEQ model when new information is available. In this study, a Bayesian approach for IEQ model updating is proposed to systematically relate new subjective IEQ responses towards the environment to the existing beliefs. With a selected target sample size and an acceptable error, the statistical significance of data is evaluated and incorporated into the updated IEQ model. Bayesian updating framework is able to enhance the accuracy of IEQ prediction and shall be a useful tool for managerial decision-making in maintaining a comfortable indoor environment.
{"title":"Bayesian updates for indoor environmental quality (IEQ) acceptance model for residential buildings","authors":"T. Tsang, K. Mui, L. Wong, W. Yu","doi":"10.1080/17508975.2020.1803788","DOIUrl":"https://doi.org/10.1080/17508975.2020.1803788","url":null,"abstract":"ABSTRACT An accurate indoor environmental quality (IEQ) model is essential to design and maintain a comfortable indoor environment. Due to the complexity of IEQ modelling and subjective nature of IEQ responses, there is a need to update the subjective–objective relationship of IEQ model when new information is available. In this study, a Bayesian approach for IEQ model updating is proposed to systematically relate new subjective IEQ responses towards the environment to the existing beliefs. With a selected target sample size and an acceptable error, the statistical significance of data is evaluated and incorporated into the updated IEQ model. Bayesian updating framework is able to enhance the accuracy of IEQ prediction and shall be a useful tool for managerial decision-making in maintaining a comfortable indoor environment.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"13 1","pages":"17 - 32"},"PeriodicalIF":2.3,"publicationDate":"2020-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1803788","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43062314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1080/17508975.2020.1807895
Youmna Al-Dmour, V. Garaj, D. Clements–Croome
ABSTRACT The main purpose of this study is to assess the indoor environmental quality of one of London’s most modern workplaces; it is one which uses the Biophilia design approach, bringing nature inside office buildings. To evaluate the occupants’ well-being, the research uses the Flourish wheel, which is based on both the built environment and the social environment. The built environment part of the study analyses the buildings’ main features and the social environment part uses the qualitative method of interviewing the employees of the ‘Second Home’ company which designed the building. The occupants’ responses provided evidence that Biophilic design is a promising approach to improved health, wellbeing and productivity in the workplace. However, the results show two points related to the company’s use of this design. First, the use of Biophilia as an aesthetic value is not enough to reach the best environmental quality nor the occupants’ expectations in the office environment. The second is that Biophilia needs to go hand in hand with other technological features, all equally well designed for controlling the quality of the indoor environment, such as thermal comfort, air quality, lighting, acoustic comfort, and suitable spatial layout in offices.
{"title":"The flourishing of Biophilic workplaces: ‘Second Home’ offices as a case study","authors":"Youmna Al-Dmour, V. Garaj, D. Clements–Croome","doi":"10.1080/17508975.2020.1807895","DOIUrl":"https://doi.org/10.1080/17508975.2020.1807895","url":null,"abstract":"ABSTRACT The main purpose of this study is to assess the indoor environmental quality of one of London’s most modern workplaces; it is one which uses the Biophilia design approach, bringing nature inside office buildings. To evaluate the occupants’ well-being, the research uses the Flourish wheel, which is based on both the built environment and the social environment. The built environment part of the study analyses the buildings’ main features and the social environment part uses the qualitative method of interviewing the employees of the ‘Second Home’ company which designed the building. The occupants’ responses provided evidence that Biophilic design is a promising approach to improved health, wellbeing and productivity in the workplace. However, the results show two points related to the company’s use of this design. First, the use of Biophilia as an aesthetic value is not enough to reach the best environmental quality nor the occupants’ expectations in the office environment. The second is that Biophilia needs to go hand in hand with other technological features, all equally well designed for controlling the quality of the indoor environment, such as thermal comfort, air quality, lighting, acoustic comfort, and suitable spatial layout in offices.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"13 1","pages":"261 - 274"},"PeriodicalIF":2.3,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1807895","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44773573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-27DOI: 10.1080/17508975.2020.1809982
D. Sirimewan, A. Samaraweera, N. Manjula, E. Ekanayake
ABSTRACT Irrigation Water Management (IWM) being considered essential as it contributes to crop production all over the world. Nonetheless, water losses throughout the system, inefficient irrigation practices and lack of attention towards the proper maintenance of existing infrastructure were the constraining factors to achieve the benefits of sustainable use of water. Hence, this paper develops strategies to achieve sustainable water management of irrigation systems. Sixteen semi-structured interviews were conducted for industry professionals in the IWM sector in Sri Lanka as the main data collection method in this study. The collected data were analysed using a code-based content analysis based on the directed approach. The research findings identified four main categories of strategies, namely, engineering, management, operational and regulatory. The findings are substantially beneficial for industry practitioners in the water management sector to overcome the issues in IWM practices regarding the water use efficiency, equity of water distribution, environmental integrity and economic acceptability. This study can be further extended to prioritise the issues and strategies to statistically generalise the findings.
{"title":"A guideline for sustainable irrigation water management: a case of a developing country","authors":"D. Sirimewan, A. Samaraweera, N. Manjula, E. Ekanayake","doi":"10.1080/17508975.2020.1809982","DOIUrl":"https://doi.org/10.1080/17508975.2020.1809982","url":null,"abstract":"ABSTRACT Irrigation Water Management (IWM) being considered essential as it contributes to crop production all over the world. Nonetheless, water losses throughout the system, inefficient irrigation practices and lack of attention towards the proper maintenance of existing infrastructure were the constraining factors to achieve the benefits of sustainable use of water. Hence, this paper develops strategies to achieve sustainable water management of irrigation systems. Sixteen semi-structured interviews were conducted for industry professionals in the IWM sector in Sri Lanka as the main data collection method in this study. The collected data were analysed using a code-based content analysis based on the directed approach. The research findings identified four main categories of strategies, namely, engineering, management, operational and regulatory. The findings are substantially beneficial for industry practitioners in the water management sector to overcome the issues in IWM practices regarding the water use efficiency, equity of water distribution, environmental integrity and economic acceptability. This study can be further extended to prioritise the issues and strategies to statistically generalise the findings.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"13 1","pages":"129 - 141"},"PeriodicalIF":2.3,"publicationDate":"2020-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1809982","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48145540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-17DOI: 10.1080/17508975.2020.1803787
S. Verma, S. Mandal, Spenser J. Robinson, D. Bajaj
ABSTRACT Urban growth and extensive construction in the cities of developing countries raise questions about environmental pollution and resource challenges, along with sustainable techniques to mitigate them. Research in developed economies has concluded that sustainable construction practices and certifications like Leadership in Energy and Environmental Design (LEED) can help to reduce these effects at a regional level. Metropolitan areas in developing countries, such as the Mumbai region, have had LEED-certified buildings for over a decade, but their drivers and diffusion patterns have not been studied. A regression analysis on the Mumbai's dataset of LEED-certified buildings endorsed diffusion pattern different than hierarchical diffusion of developed economies. Green buildings in the peripheral business district of Navi Mumbai are certified at higher levels than those in the central business district (CBD). Higher-level green buildings in planned outer business districts are attracting tenants from the CBD to Navi Mumbai, especially those in sectors with intensive human-capital needs. The driver for tenants demanding higher-level green buildings is the signalling benefits associated with green buildings. The results establish a linkage between occupant priorities and the type of credits emphasised in the LEED certification process. Mumbai’s higher-rated green buildings have primarily pursued credits from LEED’s Energy and Atmosphere category, signalling superior efficiency.
{"title":"Diffusion patterns and drivers of higher-rated green buildings in the Mumbai region, India: a developing economy perspective","authors":"S. Verma, S. Mandal, Spenser J. Robinson, D. Bajaj","doi":"10.1080/17508975.2020.1803787","DOIUrl":"https://doi.org/10.1080/17508975.2020.1803787","url":null,"abstract":"ABSTRACT Urban growth and extensive construction in the cities of developing countries raise questions about environmental pollution and resource challenges, along with sustainable techniques to mitigate them. Research in developed economies has concluded that sustainable construction practices and certifications like Leadership in Energy and Environmental Design (LEED) can help to reduce these effects at a regional level. Metropolitan areas in developing countries, such as the Mumbai region, have had LEED-certified buildings for over a decade, but their drivers and diffusion patterns have not been studied. A regression analysis on the Mumbai's dataset of LEED-certified buildings endorsed diffusion pattern different than hierarchical diffusion of developed economies. Green buildings in the peripheral business district of Navi Mumbai are certified at higher levels than those in the central business district (CBD). Higher-level green buildings in planned outer business districts are attracting tenants from the CBD to Navi Mumbai, especially those in sectors with intensive human-capital needs. The driver for tenants demanding higher-level green buildings is the signalling benefits associated with green buildings. The results establish a linkage between occupant priorities and the type of credits emphasised in the LEED certification process. Mumbai’s higher-rated green buildings have primarily pursued credits from LEED’s Energy and Atmosphere category, signalling superior efficiency.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"14 1","pages":"393 - 413"},"PeriodicalIF":2.3,"publicationDate":"2020-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1803787","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43865866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-08-17DOI: 10.1080/17508975.2020.1802694
S. Molleti, M. Armstrong
ABSTRACT In Canada, the solar electricity sector is growing rapidly. Much of this success is based on the growth of the Ontario solar market where more than 99% of Canada’s solar electricity is generated. Ontario has developed a globally recognized solar market sector. The vast surface area of existing residential roofs across Canada represents an untapped resource for capitalizing on passive and active management of impinging solar insolation. The aim of the current research study is to evaluate the new energy harvesting technologies such as a thin-film PV integrated roof system that could serve as a conventional roofing for weather protection while generating clean solar electricity, and the new generation micro inverters that have the potential to outperform string inverters under shading and snow-cover conditions. This paper has two parts that will discuss about two smart energy harvesting technologies and their performance on residential applications in Canadian climate. Part 1 of the paper focusses on field evaluation of Roof Integrated Photovoltaic (RIPV) and Part 2 talks about the energy yield performance of integrated solar tiles and new generation micro inverters. The RIPV field trial took place at the Canadian Centre for Housing Technology (CCHT) Info Centre in Ottawa, Canada. This is a novel approach adapted from a roofing system that would typically be found on low-sloped roofs such as commercial supermarkets, industrial warehouses and school buildings. Over the eight month study period, surmounting the effects of snow cover and shadows, the RIPV system generated over 1 MWh of electricity, and had a measured system efficiency of 5.3%. The study on the new generation micro inverters for residential applications addressed the shading effects on the intermittent nature of solar energy generation. Simulating the shading conditions that are experienced by typical residential rooftop, the micro inverters were found to increase production by 1–68% relative to the conventional string inverters. The research outcome of this study has demonstrated that both these energy harvesting technologies have important incremental benefits in increasing the renewables contribution to power generation in residential homes in Canadian climatic conditions.
{"title":"Smart energy harvesting performance of photovoltaic roof assemblies in Canadian climate","authors":"S. Molleti, M. Armstrong","doi":"10.1080/17508975.2020.1802694","DOIUrl":"https://doi.org/10.1080/17508975.2020.1802694","url":null,"abstract":"ABSTRACT In Canada, the solar electricity sector is growing rapidly. Much of this success is based on the growth of the Ontario solar market where more than 99% of Canada’s solar electricity is generated. Ontario has developed a globally recognized solar market sector. The vast surface area of existing residential roofs across Canada represents an untapped resource for capitalizing on passive and active management of impinging solar insolation. The aim of the current research study is to evaluate the new energy harvesting technologies such as a thin-film PV integrated roof system that could serve as a conventional roofing for weather protection while generating clean solar electricity, and the new generation micro inverters that have the potential to outperform string inverters under shading and snow-cover conditions. This paper has two parts that will discuss about two smart energy harvesting technologies and their performance on residential applications in Canadian climate. Part 1 of the paper focusses on field evaluation of Roof Integrated Photovoltaic (RIPV) and Part 2 talks about the energy yield performance of integrated solar tiles and new generation micro inverters. The RIPV field trial took place at the Canadian Centre for Housing Technology (CCHT) Info Centre in Ottawa, Canada. This is a novel approach adapted from a roofing system that would typically be found on low-sloped roofs such as commercial supermarkets, industrial warehouses and school buildings. Over the eight month study period, surmounting the effects of snow cover and shadows, the RIPV system generated over 1 MWh of electricity, and had a measured system efficiency of 5.3%. The study on the new generation micro inverters for residential applications addressed the shading effects on the intermittent nature of solar energy generation. Simulating the shading conditions that are experienced by typical residential rooftop, the micro inverters were found to increase production by 1–68% relative to the conventional string inverters. The research outcome of this study has demonstrated that both these energy harvesting technologies have important incremental benefits in increasing the renewables contribution to power generation in residential homes in Canadian climatic conditions.","PeriodicalId":45828,"journal":{"name":"Intelligent Buildings International","volume":"13 1","pages":"70 - 88"},"PeriodicalIF":2.3,"publicationDate":"2020-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/17508975.2020.1802694","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44952192","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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