Decay Rates and Time Lags of Heat Conduction in Building Construction Under Field Conditions

摘要：

This paper reports field measurements of decay rates and time lags of heat conduction in building construction taken in Nanjing during 2001 summer. A method for the analysis of field data is also presented that involves calculating decay rates and time lags of heat conduction in building construction under field conditions. We find that the measured values match very well with theoretical values for the 0th and the 1 st order of the decay rates and time lags of heat conduction in building construction but the difference between the test values and theoretical values is too large to be accepted for the 2nd order. It is therefore difficult to accurately test the 2nd order. However, it is still advisable to calculate the decay rates and time lags of heat conduction in building construction under field conditions using the 1 st order, because in this case, values have already reached twenty times those needed to meet the requirements of engineering plans.

关键词： Decay rates Time lags Heat conduction Building construction Field

作者: Changhai Peng Zhishen Wu Zhenqian Chen Min Li

作者单位: IIUSE,Southeast University,Nanjing,China School of Architecture,Southeast University,Nanjing,China IIUSE,Southeast University,Nanjing,China Urban and Civil Engineering Department,Ibaraki University,H IIUSE,Southeast University,Nanjing,China School of Energy & Environment,Southeast University,Nanjing IIUSE,Southeast University,Nanjing,China

会议类型: 国际会议

会议名称: The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)

会议地点: 南京

会议语种:英文

页码: 860-867

在线出版日期: 2009-11-06（万方平台首次上网日期，不代表论文的发表时间）