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Evaluating the potential energy savings of retrofitting low-rise suburban dwellings towards the Passivhaus EnerPHit standard in a hot summer/cold winter region of China
This paper considers the potential heating and cooling energy savings from retrofitting to the Passivhaus EnerPHit standard a low-rise suburban dwelling in the southern Chinese town of Huilong, which has a hot summer/cold winter climate. An existing residential building in Huilong was chosen as a ca...
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Published in: | Energy and buildings 2021-01, Vol.231, p.110555, Article 110555 |
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description | This paper considers the potential heating and cooling energy savings from retrofitting to the Passivhaus EnerPHit standard a low-rise suburban dwelling in the southern Chinese town of Huilong, which has a hot summer/cold winter climate. An existing residential building in Huilong was chosen as a case study and a baseline digital model was created with the dynamic thermal simulation software DesignBuilder. The model was validated using 12 months of air temperature and relative humidity measurements from the building. The virtual retrofitting process of the baseline model involved insulating the envelope, improving the airtightness and adopting a high efficiency mechanical ventilation heat recovery system. It was more difficult to reach the EnerPHit cooling energy demand criterion than the heating target, and so additional passive cooling from shading and natural ventilation were adopted to finally achieve the EnerPHit standard. The final simulation results suggest that the EnerPHit standard for energy was successfully achieved, with a 90% heating energy demand reduction (down to 14.9 kWh/m2a), and a 70% cooling energy demand (down to 12.6 kWh/m2a), compared to the dwelling’s baseline values. |
doi_str_mv | 10.1016/j.enbuild.2020.110555 |
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An existing residential building in Huilong was chosen as a case study and a baseline digital model was created with the dynamic thermal simulation software DesignBuilder. The model was validated using 12 months of air temperature and relative humidity measurements from the building. The virtual retrofitting process of the baseline model involved insulating the envelope, improving the airtightness and adopting a high efficiency mechanical ventilation heat recovery system. It was more difficult to reach the EnerPHit cooling energy demand criterion than the heating target, and so additional passive cooling from shading and natural ventilation were adopted to finally achieve the EnerPHit standard. The final simulation results suggest that the EnerPHit standard for energy was successfully achieved, with a 90% heating energy demand reduction (down to 14.9 kWh/m2a), and a 70% cooling energy demand (down to 12.6 kWh/m2a), compared to the dwelling’s baseline values.</description><identifier>ISSN: 0378-7788</identifier><identifier>EISSN: 1872-6178</identifier><identifier>DOI: 10.1016/j.enbuild.2020.110555</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Air temperature ; Airtightness ; Cooling ; Demand ; Dwellings ; Energy ; Energy conservation ; Energy demand ; Energy saving ; Heat recovery ; Heating ; Mechanical ventilation ; Passive cooling ; Passivhaus EnerPHit standard ; Relative humidity ; Residential buildings ; Retrofitting ; Shading ; Step-by-step retrofitting ; Suburban residential building ; Summer ; Thermal simulation ; Ventilation ; Winter</subject><ispartof>Energy and buildings, 2021-01, Vol.231, p.110555, Article 110555</ispartof><rights>2020 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jan 15, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-88e3bfb400079106948593fa76e8b3be4ab18342425bcc9423ac4e539c1514bf3</citedby><cites>FETCH-LOGICAL-c337t-88e3bfb400079106948593fa76e8b3be4ab18342425bcc9423ac4e539c1514bf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Liu, Chenfei</creatorcontrib><creatorcontrib>Mohammadpourkarbasi, Haniyeh</creatorcontrib><creatorcontrib>Sharples, Steve</creatorcontrib><title>Evaluating the potential energy savings of retrofitting low-rise suburban dwellings towards the Passivhaus EnerPHit standard in a hot summer/cold winter region of China</title><title>Energy and buildings</title><description>This paper considers the potential heating and cooling energy savings from retrofitting to the Passivhaus EnerPHit standard a low-rise suburban dwelling in the southern Chinese town of Huilong, which has a hot summer/cold winter climate. An existing residential building in Huilong was chosen as a case study and a baseline digital model was created with the dynamic thermal simulation software DesignBuilder. The model was validated using 12 months of air temperature and relative humidity measurements from the building. The virtual retrofitting process of the baseline model involved insulating the envelope, improving the airtightness and adopting a high efficiency mechanical ventilation heat recovery system. It was more difficult to reach the EnerPHit cooling energy demand criterion than the heating target, and so additional passive cooling from shading and natural ventilation were adopted to finally achieve the EnerPHit standard. The final simulation results suggest that the EnerPHit standard for energy was successfully achieved, with a 90% heating energy demand reduction (down to 14.9 kWh/m2a), and a 70% cooling energy demand (down to 12.6 kWh/m2a), compared to the dwelling’s baseline values.</description><subject>Air temperature</subject><subject>Airtightness</subject><subject>Cooling</subject><subject>Demand</subject><subject>Dwellings</subject><subject>Energy</subject><subject>Energy conservation</subject><subject>Energy demand</subject><subject>Energy saving</subject><subject>Heat recovery</subject><subject>Heating</subject><subject>Mechanical ventilation</subject><subject>Passive cooling</subject><subject>Passivhaus EnerPHit standard</subject><subject>Relative humidity</subject><subject>Residential buildings</subject><subject>Retrofitting</subject><subject>Shading</subject><subject>Step-by-step retrofitting</subject><subject>Suburban residential building</subject><subject>Summer</subject><subject>Thermal simulation</subject><subject>Ventilation</subject><subject>Winter</subject><issn>0378-7788</issn><issn>1872-6178</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNqFkUFrGzEQhUVpIW7anxAQ9LyOtJJW2lMpxk0CgebQnoWknbVl1pIraW3yj_ozI9u59zQw8817PB5Cd5QsKaHd_W4Jwc5-GpYtaeuOEiHEB7SgSrZNR6X6iBaESdVIqdQN-pzzjhDSCUkX6N_6aKbZFB82uGwBH2KBULyZMARIm1eczbHeMo4jTlBSHH25wFM8NclnwHm2c7Im4OEE03RhSzyZNOSL4IvJ2R-3Zs54XRVfHn3BuZgwVAL7gA3exrqZ93tI9y5OAz75UCBVt42P4ey72vpgvqBPo5kyfH2ft-jPz_Xv1WPz_OvhafXjuXGMydIoBcyOlteAsqek67kSPRuN7EBZZoEbSxXjLW-Fda7nLTOOg2C9o4JyO7Jb9O2qe0jx7wy56F2cU6iWuuVK8k70sq-UuFIuxZwTjPqQ_N6kV02JPpeid_q9FH0uRV9LqX_fr39QIxw9JJ2dh-Bg8Alc0UP0_1F4A5XFm6k</recordid><startdate>20210115</startdate><enddate>20210115</enddate><creator>Liu, Chenfei</creator><creator>Mohammadpourkarbasi, Haniyeh</creator><creator>Sharples, Steve</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>KR7</scope><scope>SOI</scope></search><sort><creationdate>20210115</creationdate><title>Evaluating the potential energy savings of retrofitting low-rise suburban dwellings towards the Passivhaus EnerPHit standard in a hot summer/cold winter region of China</title><author>Liu, Chenfei ; Mohammadpourkarbasi, Haniyeh ; Sharples, Steve</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-88e3bfb400079106948593fa76e8b3be4ab18342425bcc9423ac4e539c1514bf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Air temperature</topic><topic>Airtightness</topic><topic>Cooling</topic><topic>Demand</topic><topic>Dwellings</topic><topic>Energy</topic><topic>Energy conservation</topic><topic>Energy demand</topic><topic>Energy saving</topic><topic>Heat recovery</topic><topic>Heating</topic><topic>Mechanical ventilation</topic><topic>Passive cooling</topic><topic>Passivhaus EnerPHit standard</topic><topic>Relative humidity</topic><topic>Residential buildings</topic><topic>Retrofitting</topic><topic>Shading</topic><topic>Step-by-step retrofitting</topic><topic>Suburban residential building</topic><topic>Summer</topic><topic>Thermal simulation</topic><topic>Ventilation</topic><topic>Winter</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, Chenfei</creatorcontrib><creatorcontrib>Mohammadpourkarbasi, Haniyeh</creatorcontrib><creatorcontrib>Sharples, Steve</creatorcontrib><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Environment Abstracts</collection><jtitle>Energy and buildings</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liu, Chenfei</au><au>Mohammadpourkarbasi, Haniyeh</au><au>Sharples, Steve</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluating the potential energy savings of retrofitting low-rise suburban dwellings towards the Passivhaus EnerPHit standard in a hot summer/cold winter region of China</atitle><jtitle>Energy and buildings</jtitle><date>2021-01-15</date><risdate>2021</risdate><volume>231</volume><spage>110555</spage><pages>110555-</pages><artnum>110555</artnum><issn>0378-7788</issn><eissn>1872-6178</eissn><abstract>This paper considers the potential heating and cooling energy savings from retrofitting to the Passivhaus EnerPHit standard a low-rise suburban dwelling in the southern Chinese town of Huilong, which has a hot summer/cold winter climate. An existing residential building in Huilong was chosen as a case study and a baseline digital model was created with the dynamic thermal simulation software DesignBuilder. The model was validated using 12 months of air temperature and relative humidity measurements from the building. The virtual retrofitting process of the baseline model involved insulating the envelope, improving the airtightness and adopting a high efficiency mechanical ventilation heat recovery system. It was more difficult to reach the EnerPHit cooling energy demand criterion than the heating target, and so additional passive cooling from shading and natural ventilation were adopted to finally achieve the EnerPHit standard. The final simulation results suggest that the EnerPHit standard for energy was successfully achieved, with a 90% heating energy demand reduction (down to 14.9 kWh/m2a), and a 70% cooling energy demand (down to 12.6 kWh/m2a), compared to the dwelling’s baseline values.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.enbuild.2020.110555</doi></addata></record> |
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source | ScienceDirect Freedom Collection 2022-2024 |
subjects | Air temperature Airtightness Cooling Demand Dwellings Energy Energy conservation Energy demand Energy saving Heat recovery Heating Mechanical ventilation Passive cooling Passivhaus EnerPHit standard Relative humidity Residential buildings Retrofitting Shading Step-by-step retrofitting Suburban residential building Summer Thermal simulation Ventilation Winter |
title | Evaluating the potential energy savings of retrofitting low-rise suburban dwellings towards the Passivhaus EnerPHit standard in a hot summer/cold winter region of China |
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