FLUCTUATION OF INDOOR TEMPERATURE CAUSED BY INSUFFICIENT COOLING SUPPLY: COMPUTER SIMULATION AND EXPERIMENTAL STUDY
Energy recovery ventilator (ERV) is generally installed in an air-conditioning system to recycle the cooling load of exhaust air. However, air conditioning systems with the single ERV can not meet with outdoor air load and indoor cooling load in summer, which will cause fluctuation of indoor temperature. The goal of this study is to analyze such a fuctuating scenario of the indoor temperature. CFD and subjective evaluation are used in this study. The resuls of CFD confirm the improvement of the air-conditioning system before and after adding direct-expansion blast heater with heat pump in the primary air system and designing reasonable fresh air distribution. A computer room is chosen as the experimental case. The results demonstrate that the initial fluctuation of indoor air temperature has been reduced effectively before and after its rebuilding. New primary air system with ERV and direct-expansion blast heater with heat pump can improve indoor air quality and stabilize indoor temperature.
Fluctuation of temperature Cooling load CFD Subjective evaluation
Lei Yang Jinghua Wei Gao Wu
Department of Energy & Environment, Zhongyuan University of Technology, Zhengzhou；School of Environm No.6 Institute of Project Planning & Research of Machinery Industry, Zhengzhou 450007, Department of Energy & Environment, Zhongyuan University of Technology, Zhengzhou
国际会议
北京
英文
2007-09-03（万方平台首次上网日期，不代表论文的发表时间）