Thermal performance of coupled cool roof and cool façade: Experimental monitoring and analytical optimization procedure
[Display omitted] •The cooling capability of two envelope solutions is experimentally investigated.•An analytical model optimizing the experimental setup is implemented.•Cool façades considerably contribute to decrease surface temperatures.•The combination of roof and façades leads to a 4.4°C indoor...
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Veröffentlicht in: | Energy and buildings 2017-12, Vol.157, p.35-52 |
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creator | Pisello, A.L. Castaldo, V.L. Piselli, C. Fabiani, C. Cotana, F. |
description | [Display omitted]
•The cooling capability of two envelope solutions is experimentally investigated.•An analytical model optimizing the experimental setup is implemented.•Cool façades considerably contribute to decrease surface temperatures.•The combination of roof and façades leads to a 4.4°C indoor temperature reduction.•An accurate analytical prediction of the building thermal behavior is achieved.
While UHI mitigation potential of cool roofs has been deeply investigated compared to cool façades, still not sufficient research effort has been dedicated to quantify the benefits of combined cool building products.
The present work evaluates the thermal performance of an innovative cool roofing membrane and a cool façade painting applied on a prototype building. Moreover, an analytical procedure able to predict the cool coating thermal performance is elaborated. Such methodology can be used to determine the passive cooling potential of each product as a separate envelope component and as a combination. To this twofold aim, a preliminary in-field monitoring is developed. Therefore, a sensitivity analysis is performed to evaluate the separate and combined passive cooling contributions of the roof and the differently oriented façades. Finally, the analytical procedure is developed to define external surface temperature profiles able to predict the building coating thermal performance by minimizing the number of temperature measurements.
Results show the major contribution of cool roof membrane in reducing indoor operative temperature. Nevertheless, a non-negligible cooling effect in terms of outdoor surface temperature is imputable to the South cool façade. Moreover, the analytical model shows an acceptable accuracy in representing the behavior of the building coating. |
doi_str_mv | 10.1016/j.enbuild.2017.04.054 |
format | Article |
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•The cooling capability of two envelope solutions is experimentally investigated.•An analytical model optimizing the experimental setup is implemented.•Cool façades considerably contribute to decrease surface temperatures.•The combination of roof and façades leads to a 4.4°C indoor temperature reduction.•An accurate analytical prediction of the building thermal behavior is achieved.
While UHI mitigation potential of cool roofs has been deeply investigated compared to cool façades, still not sufficient research effort has been dedicated to quantify the benefits of combined cool building products.
The present work evaluates the thermal performance of an innovative cool roofing membrane and a cool façade painting applied on a prototype building. Moreover, an analytical procedure able to predict the cool coating thermal performance is elaborated. Such methodology can be used to determine the passive cooling potential of each product as a separate envelope component and as a combination. To this twofold aim, a preliminary in-field monitoring is developed. Therefore, a sensitivity analysis is performed to evaluate the separate and combined passive cooling contributions of the roof and the differently oriented façades. Finally, the analytical procedure is developed to define external surface temperature profiles able to predict the building coating thermal performance by minimizing the number of temperature measurements.
Results show the major contribution of cool roof membrane in reducing indoor operative temperature. Nevertheless, a non-negligible cooling effect in terms of outdoor surface temperature is imputable to the South cool façade. Moreover, the analytical model shows an acceptable accuracy in representing the behavior of the building coating.</description><identifier>ISSN: 0378-7788</identifier><identifier>EISSN: 1872-6178</identifier><identifier>DOI: 10.1016/j.enbuild.2017.04.054</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Analytical procedure ; Building thermal-energy performance ; Buildings ; Continuous monitoring ; Cool façade ; Cool roof ; Cooling ; Cooling effects ; Effects ; Facades ; Mathematical analysis ; Mathematical models ; Mitigation ; Model accuracy ; Monitoring ; Optimization ; Passive cooling ; Protective coatings ; Roofing ; Roofs ; Sensitivity analysis ; Surface temperature ; Temperature ; Temperature effects ; Temperature profiles</subject><ispartof>Energy and buildings, 2017-12, Vol.157, p.35-52</ispartof><rights>2017 Elsevier B.V.</rights><rights>Copyright Elsevier BV Dec 15, 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-98f4328ee07a848e649c234722e9e0e1f9836f154c98bb106127ebc444791993</citedby><cites>FETCH-LOGICAL-c384t-98f4328ee07a848e649c234722e9e0e1f9836f154c98bb106127ebc444791993</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.enbuild.2017.04.054$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Pisello, A.L.</creatorcontrib><creatorcontrib>Castaldo, V.L.</creatorcontrib><creatorcontrib>Piselli, C.</creatorcontrib><creatorcontrib>Fabiani, C.</creatorcontrib><creatorcontrib>Cotana, F.</creatorcontrib><title>Thermal performance of coupled cool roof and cool façade: Experimental monitoring and analytical optimization procedure</title><title>Energy and buildings</title><description>[Display omitted]
•The cooling capability of two envelope solutions is experimentally investigated.•An analytical model optimizing the experimental setup is implemented.•Cool façades considerably contribute to decrease surface temperatures.•The combination of roof and façades leads to a 4.4°C indoor temperature reduction.•An accurate analytical prediction of the building thermal behavior is achieved.
While UHI mitigation potential of cool roofs has been deeply investigated compared to cool façades, still not sufficient research effort has been dedicated to quantify the benefits of combined cool building products.
The present work evaluates the thermal performance of an innovative cool roofing membrane and a cool façade painting applied on a prototype building. Moreover, an analytical procedure able to predict the cool coating thermal performance is elaborated. Such methodology can be used to determine the passive cooling potential of each product as a separate envelope component and as a combination. To this twofold aim, a preliminary in-field monitoring is developed. Therefore, a sensitivity analysis is performed to evaluate the separate and combined passive cooling contributions of the roof and the differently oriented façades. Finally, the analytical procedure is developed to define external surface temperature profiles able to predict the building coating thermal performance by minimizing the number of temperature measurements.
Results show the major contribution of cool roof membrane in reducing indoor operative temperature. Nevertheless, a non-negligible cooling effect in terms of outdoor surface temperature is imputable to the South cool façade. Moreover, the analytical model shows an acceptable accuracy in representing the behavior of the building coating.</description><subject>Analytical procedure</subject><subject>Building thermal-energy performance</subject><subject>Buildings</subject><subject>Continuous monitoring</subject><subject>Cool façade</subject><subject>Cool roof</subject><subject>Cooling</subject><subject>Cooling effects</subject><subject>Effects</subject><subject>Facades</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Mitigation</subject><subject>Model accuracy</subject><subject>Monitoring</subject><subject>Optimization</subject><subject>Passive cooling</subject><subject>Protective coatings</subject><subject>Roofing</subject><subject>Roofs</subject><subject>Sensitivity analysis</subject><subject>Surface temperature</subject><subject>Temperature</subject><subject>Temperature effects</subject><subject>Temperature profiles</subject><issn>0378-7788</issn><issn>1872-6178</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkE1OwzAQhS0EEqVwBKRIrBPsxPEPG4Sq8iNVYtO95ThjcJTGwUlQy4U4CBfDpd2zGnv83hvPh9A1wRnBhN02GXTV5No6yzHhGaYZLukJmhHB85QRLk7RDBdcpJwLcY4uhqHBGLOSkxnart8hbHSb9BCsj6fOQOJtYvzUt1DH6tsk-NjR3fFm9c-3ruEuWW6jyW2gG6N_4zs3-uC6tz-l7nS7G52JL74f3cZ96dH5LumDN1BPAS7RmdXtAFfHOkfrx-V68ZyuXp9eFg-r1BSCjqkUlha5AMBcCyqAUWnygvI8BwkYiJWiYJaU1EhRVQQzknOoDKWUSyJlMUc3h9g4-GOCYVSNn0L83KCIFKygTLIyqsqDygQ_DAGs6uNiOuwUwWrPWDXqyFjtGStMVWQcffcHH8QNPh0ENRgHEWHtAphR1d79k_AL00yKCA</recordid><startdate>20171215</startdate><enddate>20171215</enddate><creator>Pisello, A.L.</creator><creator>Castaldo, V.L.</creator><creator>Piselli, C.</creator><creator>Fabiani, C.</creator><creator>Cotana, F.</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>20171215</creationdate><title>Thermal performance of coupled cool roof and cool façade: Experimental monitoring and analytical optimization procedure</title><author>Pisello, A.L. ; Castaldo, V.L. ; Piselli, C. ; Fabiani, C. ; Cotana, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-98f4328ee07a848e649c234722e9e0e1f9836f154c98bb106127ebc444791993</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Analytical procedure</topic><topic>Building thermal-energy performance</topic><topic>Buildings</topic><topic>Continuous monitoring</topic><topic>Cool façade</topic><topic>Cool roof</topic><topic>Cooling</topic><topic>Cooling effects</topic><topic>Effects</topic><topic>Facades</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Mitigation</topic><topic>Model accuracy</topic><topic>Monitoring</topic><topic>Optimization</topic><topic>Passive cooling</topic><topic>Protective coatings</topic><topic>Roofing</topic><topic>Roofs</topic><topic>Sensitivity analysis</topic><topic>Surface temperature</topic><topic>Temperature</topic><topic>Temperature effects</topic><topic>Temperature profiles</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pisello, A.L.</creatorcontrib><creatorcontrib>Castaldo, V.L.</creatorcontrib><creatorcontrib>Piselli, C.</creatorcontrib><creatorcontrib>Fabiani, C.</creatorcontrib><creatorcontrib>Cotana, F.</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>Pisello, A.L.</au><au>Castaldo, V.L.</au><au>Piselli, C.</au><au>Fabiani, C.</au><au>Cotana, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal performance of coupled cool roof and cool façade: Experimental monitoring and analytical optimization procedure</atitle><jtitle>Energy and buildings</jtitle><date>2017-12-15</date><risdate>2017</risdate><volume>157</volume><spage>35</spage><epage>52</epage><pages>35-52</pages><issn>0378-7788</issn><eissn>1872-6178</eissn><abstract>[Display omitted]
•The cooling capability of two envelope solutions is experimentally investigated.•An analytical model optimizing the experimental setup is implemented.•Cool façades considerably contribute to decrease surface temperatures.•The combination of roof and façades leads to a 4.4°C indoor temperature reduction.•An accurate analytical prediction of the building thermal behavior is achieved.
While UHI mitigation potential of cool roofs has been deeply investigated compared to cool façades, still not sufficient research effort has been dedicated to quantify the benefits of combined cool building products.
The present work evaluates the thermal performance of an innovative cool roofing membrane and a cool façade painting applied on a prototype building. Moreover, an analytical procedure able to predict the cool coating thermal performance is elaborated. Such methodology can be used to determine the passive cooling potential of each product as a separate envelope component and as a combination. To this twofold aim, a preliminary in-field monitoring is developed. Therefore, a sensitivity analysis is performed to evaluate the separate and combined passive cooling contributions of the roof and the differently oriented façades. Finally, the analytical procedure is developed to define external surface temperature profiles able to predict the building coating thermal performance by minimizing the number of temperature measurements.
Results show the major contribution of cool roof membrane in reducing indoor operative temperature. Nevertheless, a non-negligible cooling effect in terms of outdoor surface temperature is imputable to the South cool façade. Moreover, the analytical model shows an acceptable accuracy in representing the behavior of the building coating.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.enbuild.2017.04.054</doi><tpages>18</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Analytical procedure Building thermal-energy performance Buildings Continuous monitoring Cool façade Cool roof Cooling Cooling effects Effects Facades Mathematical analysis Mathematical models Mitigation Model accuracy Monitoring Optimization Passive cooling Protective coatings Roofing Roofs Sensitivity analysis Surface temperature Temperature Temperature effects Temperature profiles |
title | Thermal performance of coupled cool roof and cool façade: Experimental monitoring and analytical optimization procedure |
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