02294nas a2200265   4500008004100000022001300041245010900054210006900163260001200232300001400244490000800258520131500266653003101581653001701612653001501629653002401644653001901668653002201687100001501709700002001724700001901744700001401763700001801777856023301795       2018                        eng d  a1359431100aImpact of post-rainfall evaporation from porous roof tiles on building cooling load in subtropical China0 aImpact of postrainfall evaporation from porous roof tiles on bui  c09/2018  a391 - 4000 v1423 a<p>Rainfall occurs frequently in subtropical regions of China, with the subsequent water evaporation from building roofs impacting the thermal performance and the energy consumption of buildings. We proposed a novel simulation method using actual meteorological data to evaluate this impact. New features were developed in EnergyPlus to enable the simulation: (1) an evaporation latent heat flux source term was added to the heat balance equation of the external surface and (2) algorithms for the evaporative cooling module (ECM) were developed and implemented into EnergyPlus. The ECM experimental results showed good agreement with the simulated results. The ECM was used to assess the impact of evaporation from porous roof tiles on the cooling load of a one-floor building in subtropical China. The results show that the evaporation process decreased the maximal values of the external and internal roof surface temperatures by up to 6.4 °C and 3.2 °C, respectively, while the lower internal surface temperature decreased the room accumulated cooling load by up to 14.8% during the hot summer period. The enhanced EnergyPlus capability can be used to evaluate the evaporative cooling performance of roofs with water-storage mediums, as well as to quantify their impact on building cooling loads.</p>10aBuilding energy simulation10acooling load10aenergyplus10aEvaporative Cooling10aRainfall event10aSubtropical China1 aZhang, Lei1 aZhang, Rongpeng1 aHong, Tianzhen1 aZhang, Yu1 aMeng, Qinglin  uhttps://linkinghub.elsevier.com/retrieve/pii/S1359431117356107https://api.elsevier.com/content/article/PII:S1359431117356107?httpAccept=text/xmlhttps://api.elsevier.com/content/article/PII:S1359431117356107?httpAccept=text/plain