Research on the Natural Ventilation Cooling Effect of Residential Building Based on the CFD and DeST Simulation
Assessing the energy saving of natural ventilation is difficult, especially for large scale naturally ventilated buildings, due to the lack of deterministic data and method. This paper presents a method, integrating simulation by both software of DeST-h and computational fluid dynamics (CFD) in typical meteorological year (TMY) in Guangzhou, to evaluate quantitatively the natural ventilation cooling effect. The results showed that the cooling effect of natural ventilation was influenced by the windows and doors switching. Air conditioning operating hours reduction in the living room can reach 509h by natural ventilation during the occupied time with the windows and doors opened, which can reach 325h with the windows opened and doors closed. The cooling effect of natural ventilation was more significant in windows and doors opened case than that in windows opened and doors closed case. Annual rate of cooling loads reduction in rooms and building were 0.34-10.50％ and 6.14％ respectively. It is necessary to organize and design building opening to maximize the natural ventilation using.
Natural ventilation residential building cooling air change rates
Lihua Zhao Cuicui Qin
Building Environment and Energy Laboratory (BEEL), State Key Laboratory of Subtropical Building Science, South China University of Technology, China, 510640
国际会议
西安
英文
341-345
2011-09-22（万方平台首次上网日期，不代表论文的发表时间）