Discussion on the Energy-efficiency and Comfort of Different Air Distribution
The numerical simulation method is used in a model experimental condition, and the model size is 2.4mx 1.2mx2.4m, which is a scaleddown 1:10 large space building model. The paper discusses both energy conservation and comfort under four kinds of air distribution based on numerical simulation. The simulation results show that: From the aspect of energy conservation, when horizontal average temperature in living domain reaches 36.85 ℃, the cooling capacity of the complete air-conditioning systems and stratification air-conditioning systems are 422W and 189W respectively. So that stratification air-conditioning systems can save 233w cooling load, and the energy-saving rate is 55.2％. Under three stratification air-conditioning systems, which are single side blowing and returning, dual blowing and retu rning, side blowing while opposite returning air distributions and complete air-conditioning system of up blowing air distributions, the ADPI of each system are as follows: 13.7％, 13.7％, 14.7％ and 97.1％ respectively. Above all, through numerical simulation, taking indoor comfort as well as energy conservation into consideration, stratification airconditioning system of single side blowing and returning air distribution can create a better thermal environment and is more energy-saving.
Numerical simulation Air distribution model Vertical air temperature Cooling load The living domain Uniformity
Rong Ren Chen Huang Huizhong Zhao Ning Cai
College of Urban Construction and Environmental Engineering,University of Shanghai for Science and Technology,China
国际会议
The 6th International Symposium on Heating,Ventilating and Air Conditioning(第六届国际暖通空调学术会议)
南京
英文
1324-1331
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）