The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is in...The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is investigated to determine the wind speed into the apartment through the computational fluid dynamics software.The evaluation results of the indoor wind velocity show that most parts of the apartment are comfortable.The cooling load of the penthouse can be decreased about 10.5% or 6.5% when an air layer exists or does not exist between the ceiling and the PVC-panel,respectively,indicating that the existence of the air layer can decrease the cooling load.However,the effect of the increase in the air layer＇s thickness on the decrease in the cooling load is obvious.Adding a thin layer of air between the ceiling and the PVC-panel is a good step toward sustainable buildings.展开更多
Polyvinylchloride(PVC)panel is one of the most favorite decorative materials that has been popularly applied as finishing of ceiling in residential buildings.It is about five years that the people incline to redecorat...Polyvinylchloride(PVC)panel is one of the most favorite decorative materials that has been popularly applied as finishing of ceiling in residential buildings.It is about five years that the people incline to redecorate the ceiling of old buildings with PVC panel in big cities of Iran,such as Mashad.In this study,the influence of ceiling PVC panel on the cooling and heating loads of studied apartment were determined by software DeST-h.In addition,the summer natural ventilation of the mentioned apartment is investigated by determining the wind speed into the apartment through the computational fluid dynamics(CFD)software.The evaluation of environment indoor wind velocity showed that most of the apartment space is a comfortable zone.The results of studied building analyses demonstrated that using PVC panel on the ceiling can decline the energy consumption of the penthouse(fifth level)of the investigated building,which is about 3.7%and 7%for studied methods of without and with air layer,respectively.In addition,although the existence of air layer can decline the cooling and heating loads,the increase in air layer thickness did not show significant decrease on building energy consumption.However,the PVC panel is expensive and is not suitable to be used for ceiling thermal insulation,but adding a thin layer of air between ceiling and PVC panel can be a good step toward sustainable building,when the people are inclined to utilize it as a decorative ceiling.展开更多
基金The Programme of Introducing Talents of Discipline to Universities(No.111-2-13)the Project of the State Key Laboratory of Subtropical Building Science of South China University of Technology(No.200833)
文摘The influence of a polyvinyl chloride（PVC）-panel on the cooling load of a residential apartment in Mashad,Iran,is analyzed by the DeST-h software.And the summer natural ventilation of the residential apartment is investigated to determine the wind speed into the apartment through the computational fluid dynamics software.The evaluation results of the indoor wind velocity show that most parts of the apartment are comfortable.The cooling load of the penthouse can be decreased about 10.5% or 6.5% when an air layer exists or does not exist between the ceiling and the PVC-panel,respectively,indicating that the existence of the air layer can decrease the cooling load.However,the effect of the increase in the air layer＇s thickness on the decrease in the cooling load is obvious.Adding a thin layer of air between the ceiling and the PVC-panel is a good step toward sustainable buildings.
基金funded by the 111 Project(No.111-2-13)and the State Key Laboratory of Subtropical Building Science,South China University of Technology,China(No.200833)。
文摘Polyvinylchloride(PVC)panel is one of the most favorite decorative materials that has been popularly applied as finishing of ceiling in residential buildings.It is about five years that the people incline to redecorate the ceiling of old buildings with PVC panel in big cities of Iran,such as Mashad.In this study,the influence of ceiling PVC panel on the cooling and heating loads of studied apartment were determined by software DeST-h.In addition,the summer natural ventilation of the mentioned apartment is investigated by determining the wind speed into the apartment through the computational fluid dynamics(CFD)software.The evaluation of environment indoor wind velocity showed that most of the apartment space is a comfortable zone.The results of studied building analyses demonstrated that using PVC panel on the ceiling can decline the energy consumption of the penthouse(fifth level)of the investigated building,which is about 3.7%and 7%for studied methods of without and with air layer,respectively.In addition,although the existence of air layer can decline the cooling and heating loads,the increase in air layer thickness did not show significant decrease on building energy consumption.However,the PVC panel is expensive and is not suitable to be used for ceiling thermal insulation,but adding a thin layer of air between ceiling and PVC panel can be a good step toward sustainable building,when the people are inclined to utilize it as a decorative ceiling.
基金funded by the 111 Project(ProjectNo.111-2-13)the State Key Laboratory of Subtropical Building Science,South China University of Technology,China(Project No.200833)
