Indoor environment of nearly zero energy residential buildings with conventional air conditioning in hot-summer and cold-winter zone  

作　　者：Jiankai Dong Haixia Lan Yu Liu Xiaotao Wang Chenchen Yu 

机构地区：[1]School of Architecture,Harbin Institute of Technology,Harbin,China [2]Key Laboratory of Cold Region Urban and Rural Human Settlement Environment Science and Technology,Ministry of Industry and Information Technology,China [3]CAS Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,China

出　　处：《Energy and Built Environment》2022年第2期129-138,共10页能源与人工环境（英文）

基　　金：The authors acknowledge the financial support from“CAS Key Lab-oratory of Cryogenics,TIPC(Grant No.CRY0201801)”.

摘　　要：According to the few researches on Nearly zero energy residential buildings(NZERB)in hot-summer and cold-winter zone,although it could reduce the cooling load of buildings due to its high thermal insulation and air tightness,it still needed for certain cooling in summer.This paper studied indoor environment of NZERB un-der three kinds of air-conditioners(split-type air-conditioner,multi-line air-conditioner and ceiling radiant air-conditioner).Firstly,a simulation model of NZERB was established based on Nanjing,a typical city in hot-summer and cold-winter zone.Secondly,variation of indoor air temperature and building load characteristics with outdoor air temperature were studied.Thirdly,indoor environment and energy consumption under three selected con-ventional air-conditioners in summer were simulated.Finally,the discussion was given,and an air-conditioner combining with convective and radiant cooling were proposed.The results indicated that the air-conditioner needed to be turned on in NZERB in hot-summer and cold-winter zone due to the room air temperature in off-air condition ranged from 32℃to 36℃,which was higher than designed indoor environment temperature in sum-mer,but the indoor environment of NZERB under three selected conventional air-conditioners could not meet the requirements of energy saving and comfort at the same time,and a proposed convective-radiant air-conditioner could be fast,stable,and energy saving.The findings can provide a reference for conducting active technology in NZERB.

关 键 词：Nearly zero energy residential building Load characteristics Air-conditioners Indoor environment Hot-summer and cold-winter zone 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]