Application and Thoughts of Fresh Air System in Ultra-Low Energy Buildings in China
With the continuous improvement of building air tightness,the traditional mode of relying on outdoor infiltration to solve indoor fresh air is no longer applicable,and also brings about a decrease in indoor air quality,mechanical fresh air systems have become a necessary means for ultra-low energy buildings.At the same time,the use of fresh air systems has brought new energy consumption load,and the application of fresh air heat exchange technology can effectively reduce the load of fresh air,therefore,the heat exchange efficiency has become an important energy consumption evaluation index for Fresh Air System of ultra-low energy buildings.The article,by searching for relevant standards for Ultra-Low Energy Building in China,reveals the differences in technical requirements for fresh air system products due to differences in regions,building attributes,and standard categories.It focuses on comparing the differences in heat exchange efficiency indicators between building standards,association product standards,and national product standards,summarizing the issues of product differentiation and acceptance differentiation caused by standard differentiation,and exploring the problems and opportunities of applying Fresh Air System in ultra-low energy buildings.
Ultra-Low energy buildingFresh air systemStandardsHeat exchange efficiencyDifferences
万方数据
维普
