Pub Date : 2016-11-03DOI: 10.1080/2093761X.2016.1237395
A. A. Sharif
AbstractThis paper examines the design of the facades used on the residential buildings at the Masdar Institute of Science and Technology (MIST) campus. MIST is the first stage in the construction of Masdar City, a large-scale sustainable project sited in the United Arab Emirates (UAE). The sustainable considerations on which the project is based are inspired by vernacular practices blended with modern technologies, a combination that targets specific climatic and cultural aims while taking into account the arid and harsh environment and also aligning design parameters with local needs. Through these considerations and responses, the paper highlights the residential building facades as important sustainable design strategies due to the fact that they envelope buildings and protect their units. Based on passive vernacular practices, they impact buildings and units in terms of cooling, shading, and lighting, meaning that an efficient design can reduce the energy requirements and reliance on active systems a...
{"title":"Sustainable architecture, interactions and mutual relations: a case study of residential building facades","authors":"A. A. Sharif","doi":"10.1080/2093761X.2016.1237395","DOIUrl":"https://doi.org/10.1080/2093761X.2016.1237395","url":null,"abstract":"AbstractThis paper examines the design of the facades used on the residential buildings at the Masdar Institute of Science and Technology (MIST) campus. MIST is the first stage in the construction of Masdar City, a large-scale sustainable project sited in the United Arab Emirates (UAE). The sustainable considerations on which the project is based are inspired by vernacular practices blended with modern technologies, a combination that targets specific climatic and cultural aims while taking into account the arid and harsh environment and also aligning design parameters with local needs. Through these considerations and responses, the paper highlights the residential building facades as important sustainable design strategies due to the fact that they envelope buildings and protect their units. Based on passive vernacular practices, they impact buildings and units in terms of cooling, shading, and lighting, meaning that an efficient design can reduce the energy requirements and reliance on active systems a...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2016.1237395","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075764","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 : 2016-10-31DOI: 10.1080/2093761X.2016.1237393
Seung-Jun Kwon
AbstractCarbonation is a critical deterioration phenomenon, particularly for underground reinforced concrete (RC) structures due to the surrounding environment having a high CO2 concentration. This paper presents an evaluation of CO2 emissions and absorption with varying intended service life periods based on actual geometry and mix ratios of concrete for RC underground structures. Four mix ratios of concrete and CO2 diffusion coefficient based micro modelling are considered, and the CO2 emission and storage are evaluated for each step with material production and conveyance. Simulations for the CO2 amount are also performed for varying intended service life periods and CO2 concentrations. As the intended service life increases, the CO2 emission rapidly increases due to the repeated repairs. In order to reduce CO2 emissions, reducing ordinary Portland cement (OPC) by replacing it with a mineral admixture like fly ash (FA) is a crucial point in the initial construction stage, since CO2 storage in use is li...
{"title":"Effect of mineral admixture on CO2 emissions and absorption in relation to service life and varying CO2 concentrations","authors":"Seung-Jun Kwon","doi":"10.1080/2093761X.2016.1237393","DOIUrl":"https://doi.org/10.1080/2093761X.2016.1237393","url":null,"abstract":"AbstractCarbonation is a critical deterioration phenomenon, particularly for underground reinforced concrete (RC) structures due to the surrounding environment having a high CO2 concentration. This paper presents an evaluation of CO2 emissions and absorption with varying intended service life periods based on actual geometry and mix ratios of concrete for RC underground structures. Four mix ratios of concrete and CO2 diffusion coefficient based micro modelling are considered, and the CO2 emission and storage are evaluated for each step with material production and conveyance. Simulations for the CO2 amount are also performed for varying intended service life periods and CO2 concentrations. As the intended service life increases, the CO2 emission rapidly increases due to the repeated repairs. In order to reduce CO2 emissions, reducing ordinary Portland cement (OPC) by replacing it with a mineral admixture like fly ash (FA) is a crucial point in the initial construction stage, since CO2 storage in use is li...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2016.1237393","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075746","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302836
W. Deng, P. Osmond, Jin Yan
AbstractThis article reports on a Chinese application of the material input per service (MIPS) concept used to characterise and quantify the relationships between MIPS provided by a university campus. The case study area chosen is the University of Nottingham Ningbo China (UNNC) campus. Materials flow accounting is applied to quantify the stock and flow of key construction materials inputs within the campus from 2008 to 2015. The number of degrees conferred (unit of service provided by a university campus) in a year is then factored to the materials input of that particular year. It is concluded that MIPS – which links a service (in this case, university education) enabled by a given product (campus facilities) to the amount of materials, energy, and emissions used or produced in creating that product – offers an interesting way to evaluate the environmental performance of a product if the service unit is properly defined.
{"title":"Using streamlined MIPS to evaluate environmental performance: a case study of the University of Nottingham Ningbo China campus","authors":"W. Deng, P. Osmond, Jin Yan","doi":"10.1080/2093761X.2017.1302836","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302836","url":null,"abstract":"AbstractThis article reports on a Chinese application of the material input per service (MIPS) concept used to characterise and quantify the relationships between MIPS provided by a university campus. The case study area chosen is the University of Nottingham Ningbo China (UNNC) campus. Materials flow accounting is applied to quantify the stock and flow of key construction materials inputs within the campus from 2008 to 2015. The number of degrees conferred (unit of service provided by a university campus) in a year is then factored to the materials input of that particular year. It is concluded that MIPS – which links a service (in this case, university education) enabled by a given product (campus facilities) to the amount of materials, energy, and emissions used or produced in creating that product – offers an interesting way to evaluate the environmental performance of a product if the service unit is properly defined.","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302836","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075887","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302839
Joshua Schultz, K. Ku, Matt Gindlesparger, J. Doerfler
AbstractAs comprehensive sustainable design methods advance, whole-building life-cycle assessment (LCA) is becoming an important part of sustainable practices. The goal of this research is to evaluate the LCA tool Tally to establish a baseline process for LCA based on building information modelling (BIM). In order to generate benchmarks for whole-building LCA, the architecture, engineering, and construction industry must agree with the United States (US) government on a standard method of measuring embodied carbon in conjunction with a design tool. This paper involves a literature review and two case studies as a comparative software analysis between two whole-building LCA tools: the Autodesk-Revit-based Tally plugin and the Athena Impact Estimator (IE). The case studies include two different unit spaces – walls only in Case 1 and walls, windows, doors, floors, and roof in Case 2 – that were analysed in Tally and the Athena IE to compare the user input parameters, outputs, life-cycle inventory (LCI) datab...
{"title":"A benchmark study of BIM-based whole-building life-cycle assessment tools and processes","authors":"Joshua Schultz, K. Ku, Matt Gindlesparger, J. Doerfler","doi":"10.1080/2093761X.2017.1302839","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302839","url":null,"abstract":"AbstractAs comprehensive sustainable design methods advance, whole-building life-cycle assessment (LCA) is becoming an important part of sustainable practices. The goal of this research is to evaluate the LCA tool Tally to establish a baseline process for LCA based on building information modelling (BIM). In order to generate benchmarks for whole-building LCA, the architecture, engineering, and construction industry must agree with the United States (US) government on a standard method of measuring embodied carbon in conjunction with a design tool. This paper involves a literature review and two case studies as a comparative software analysis between two whole-building LCA tools: the Autodesk-Revit-based Tally plugin and the Athena Impact Estimator (IE). The case studies include two different unit spaces – walls only in Case 1 and walls, windows, doors, floors, and roof in Case 2 – that were analysed in Tally and the Athena IE to compare the user input parameters, outputs, life-cycle inventory (LCI) datab...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302839","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075960","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302842
B. Lim, Zhuoyuan Wang, B. Oo
AbstractAs economies continue to undulate, firms’ ability to adapt and respond flexibly to changes is the key for their survival and competitiveness. Conceptually, organisational culture and human resources are valuable and key sources of competitive advantage. However, unlike other physical assets, human resources have their own expectations, needs and idiosyncrasies that must be met and managed if they are to contribute to firms’ change management efforts. The aim of this research is to investigate employees’ perception of change management in architectural, engineering, and construction (AEC) firms. More specifically, this research attempts to: (1) identify the key enablers of change management; (2) identify the key characteristics of effective change agents; and (3) examine the relationships between organisational culture, employee behaviours and commitment, and perceived organisational change management performance. An online questionnaire survey of 74 construction professionals was undertaken and it...
{"title":"Change management for sustainable competitive advantages: the roles of organisational culture and employees in the Chinese construction firms","authors":"B. Lim, Zhuoyuan Wang, B. Oo","doi":"10.1080/2093761X.2017.1302842","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302842","url":null,"abstract":"AbstractAs economies continue to undulate, firms’ ability to adapt and respond flexibly to changes is the key for their survival and competitiveness. Conceptually, organisational culture and human resources are valuable and key sources of competitive advantage. However, unlike other physical assets, human resources have their own expectations, needs and idiosyncrasies that must be met and managed if they are to contribute to firms’ change management efforts. The aim of this research is to investigate employees’ perception of change management in architectural, engineering, and construction (AEC) firms. More specifically, this research attempts to: (1) identify the key enablers of change management; (2) identify the key characteristics of effective change agents; and (3) examine the relationships between organisational culture, employee behaviours and commitment, and perceived organisational change management performance. An online questionnaire survey of 74 construction professionals was undertaken and it...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302842","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075970","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302830
Chahrazed Kedissa, Saliha Outtas, R. Belarbi
AbstractThe outdoor thermal comfort level of urban spaces is an important contributor to pedestrians’ health. The urban microclimate is also important due to its influence on the energy use of buildings. These issues are likely to become more acute as increased urbanisation and climate change increase the urban heat island effect. However, urban planning must be able to provide urban forms that produce various microclimates that result in different comfort situations for pedestrians. This study aims to define various configurations of urban open spaces by analysing the influence of geometrical parameters on outdoor comfort levels. To achieve it, open spaces are simulated for typical hot and cold days in the semi-arid climate of Constantine, Algeria. The sun exposure is estimated using TownScope 3.1, and assorted models are evaluated according to the geometrical indicator of the height to width (H/W) aspect ratio. ENVI-met 3.1 is used to simulate such factors as the outdoor air temperature, mean radiant te...
{"title":"The impact of height/width ratio on the microclimate and thermal comfort levels of urban courtyards","authors":"Chahrazed Kedissa, Saliha Outtas, R. Belarbi","doi":"10.1080/2093761X.2017.1302830","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302830","url":null,"abstract":"AbstractThe outdoor thermal comfort level of urban spaces is an important contributor to pedestrians’ health. The urban microclimate is also important due to its influence on the energy use of buildings. These issues are likely to become more acute as increased urbanisation and climate change increase the urban heat island effect. However, urban planning must be able to provide urban forms that produce various microclimates that result in different comfort situations for pedestrians. This study aims to define various configurations of urban open spaces by analysing the influence of geometrical parameters on outdoor comfort levels. To achieve it, open spaces are simulated for typical hot and cold days in the semi-arid climate of Constantine, Algeria. The sun exposure is estimated using TownScope 3.1, and assorted models are evaluated according to the geometrical indicator of the height to width (H/W) aspect ratio. ENVI-met 3.1 is used to simulate such factors as the outdoor air temperature, mean radiant te...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302830","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075841","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302831
Seung-Jun Kwon
AbstractService life prediction for reinforced concrete (RC) is usually performed through deterministic or probabilistic methods in regard to anticipating the phenomenon of chloride attack. The field investigation results from long-term exposure can provide reasonable data for evaluating service life, but corrosion can progress differently due to local conditions, even with the same mix proportions and exposure conditions. This paper uses two methods (deterministic and probabilistic) to explore the variation of the service life of RC columns which have been exposed to chloride attack for 3.5–4.5 years. Fieldwork was carried out on four RC columns exposed to tidal and atmospheric zones, and various chloride profiles from 25 cores were obtained. The chloride diffusion coefficients and surface chloride contents were analysed in relation to the heights at which the cores were taken and the corresponding exposure conditions. Increasing surface chloride content and decreasing diffusion coefficient with time are...
{"title":"Service life variation in RC columns exposed to chloride attack: a time-dependent deterministic and probabilistic examination","authors":"Seung-Jun Kwon","doi":"10.1080/2093761X.2017.1302831","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302831","url":null,"abstract":"AbstractService life prediction for reinforced concrete (RC) is usually performed through deterministic or probabilistic methods in regard to anticipating the phenomenon of chloride attack. The field investigation results from long-term exposure can provide reasonable data for evaluating service life, but corrosion can progress differently due to local conditions, even with the same mix proportions and exposure conditions. This paper uses two methods (deterministic and probabilistic) to explore the variation of the service life of RC columns which have been exposed to chloride attack for 3.5–4.5 years. Fieldwork was carried out on four RC columns exposed to tidal and atmospheric zones, and various chloride profiles from 25 cores were obtained. The chloride diffusion coefficients and surface chloride contents were analysed in relation to the heights at which the cores were taken and the corresponding exposure conditions. Increasing surface chloride content and decreasing diffusion coefficient with time are...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302831","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075851","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302837
Manuela Almeida, R. Mateus, M. Ferreira, Ana Rodrigues
AbstractMany regulations and initiatives to promote the reduction of energy consumption and carbon emissions have been implemented in the building sector. However, they are mostly targeted at new buildings. In order to reach the goals that are being established, while it is necessary to implement measures in new buildings, this is doubly the case for existing buildings, which correspond to the majority of the European building stock. Building renovation improves buildings’ energy performance and reduces the carbon emissions related to the operation of the building, but this involves adding new materials and technical systems. The production process of these new materials uses energy (embodied energy) and releases carbon emissions. In this sense, to evaluate the relevance of the embodied energy in building renovation, the International Energy Agency Energy in Buildings and Communities (IEA EBC) project, Annex 56, developed a methodological framework to evaluate the cost-effectiveness of building renovation...
{"title":"Life-cycle costs and impacts on energy-related building renovation assessments","authors":"Manuela Almeida, R. Mateus, M. Ferreira, Ana Rodrigues","doi":"10.1080/2093761X.2017.1302837","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302837","url":null,"abstract":"AbstractMany regulations and initiatives to promote the reduction of energy consumption and carbon emissions have been implemented in the building sector. However, they are mostly targeted at new buildings. In order to reach the goals that are being established, while it is necessary to implement measures in new buildings, this is doubly the case for existing buildings, which correspond to the majority of the European building stock. Building renovation improves buildings’ energy performance and reduces the carbon emissions related to the operation of the building, but this involves adding new materials and technical systems. The production process of these new materials uses energy (embodied energy) and releases carbon emissions. In this sense, to evaluate the relevance of the embodied energy in building renovation, the International Energy Agency Energy in Buildings and Communities (IEA EBC) project, Annex 56, developed a methodological framework to evaluate the cost-effectiveness of building renovation...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302837","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075896","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 : 2016-10-01DOI: 10.1080/2093761X.2017.1302838
Kyoon-Tai Kim, Young-Hun Jun
AbstractIn recent years, many luxurious buildings have been built in South Korea. Luxury shops and services such as health clinics, fitness centres, beauty salons and banks – which place a high importance on their image – have moved onto the second, third, fourth and fifth floors of buildings. For the owners of these businesses, it is important to keep their windows clean – not to mention the shop itself. However, it is hard for them to clean their windows as often as they want, when their shops are located on the second floor of a building or higher. The aim of this study is to establish the performance criteria for an external window-cleaning robot that uses new renewable energy, and to develop a driving mechanism that meets such criteria. Through an interview with experts and research on the current state of related technology, the performance criteria for the robot were defined, and then the driving mechanism for its implementation was developed. The possibility of avoiding any obstacles without a sto...
{"title":"Development of a window-cleaning robot powered by new renewable energy capable of continuous operation during obstacle avoidance","authors":"Kyoon-Tai Kim, Young-Hun Jun","doi":"10.1080/2093761X.2017.1302838","DOIUrl":"https://doi.org/10.1080/2093761X.2017.1302838","url":null,"abstract":"AbstractIn recent years, many luxurious buildings have been built in South Korea. Luxury shops and services such as health clinics, fitness centres, beauty salons and banks – which place a high importance on their image – have moved onto the second, third, fourth and fifth floors of buildings. For the owners of these businesses, it is important to keep their windows clean – not to mention the shop itself. However, it is hard for them to clean their windows as often as they want, when their shops are located on the second floor of a building or higher. The aim of this study is to establish the performance criteria for an external window-cleaning robot that uses new renewable energy, and to develop a driving mechanism that meets such criteria. Through an interview with experts and research on the current state of related technology, the performance criteria for the robot were defined, and then the driving mechanism for its implementation was developed. The possibility of avoiding any obstacles without a sto...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2017.1302838","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075950","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 : 2016-07-14DOI: 10.1080/2093761X.2016.1167645
M. Mahdavinejad, K. Javanroodi
AbstractThe aim of this study is to investigate different roof shapes with respect to air flow and indoor temperature in order to find efficient roof shapes for residential buildings in Tehran, Iran. First, an analytical model is defined and then various roof types are modelled. Theoretical modelling is presented to assess the accuracy of the measurement procedures and the uncertainty of experimental modelling. Mathematical and computational field dynamics (CFD) modelling and simulation methods are applied; a κ-e standard model and finite difference discretisation technique are used to simulate the velocity and pressure path lines as well as the temperature. The results indicate that the energy performance of a domed roof is more efficient compared to flat, vaulted and pitched roofs. In the case of indoor temperature, a domed roof is about 8 K cooler. Also, the wind flow pattern around domed and pitched roofs is more complex; differences in the wind velocity and pressure are noticeable compared to the oth...
{"title":"Impact of roof shape on air pressure, wind flow and indoor temperature of residential buildings","authors":"M. Mahdavinejad, K. Javanroodi","doi":"10.1080/2093761X.2016.1167645","DOIUrl":"https://doi.org/10.1080/2093761X.2016.1167645","url":null,"abstract":"AbstractThe aim of this study is to investigate different roof shapes with respect to air flow and indoor temperature in order to find efficient roof shapes for residential buildings in Tehran, Iran. First, an analytical model is defined and then various roof types are modelled. Theoretical modelling is presented to assess the accuracy of the measurement procedures and the uncertainty of experimental modelling. Mathematical and computational field dynamics (CFD) modelling and simulation methods are applied; a κ-e standard model and finite difference discretisation technique are used to simulate the velocity and pressure path lines as well as the temperature. The results indicate that the energy performance of a domed roof is more efficient compared to flat, vaulted and pitched roofs. In the case of indoor temperature, a domed roof is about 8 K cooler. Also, the wind flow pattern around domed and pitched roofs is more complex; differences in the wind velocity and pressure are noticeable compared to the oth...","PeriodicalId":38108,"journal":{"name":"International Journal of Sustainable Building Technology and Urban Development","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/2093761X.2016.1167645","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"60075654","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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