Comparisons of Air Distributions among Three Widely Used Indoor Units
The ceiling mounted cassette type (FHY), ceiling embedded vessel inner type (FBY) and floor-standing type (FVY) indoor units were introduced in this paper. 160 thermal couples and 48 velocity measuring points were located, which were used to study the temperature and velocity distribution of these three types indoor unites with different air supply angles. In order to evaluate the unsteady character of air distribution, a new index--Temperature Rise Speed (TRS) was presented to describe how fast the occupied zone air gets to the setting temperature for the working of the air conditioner. The results show that air distribution of ceiling mounted cassette type indoor unit is the most uniform, while floor-standing type indoor units can change the indoor temperature fastest. The horizontal flow of ceiling embedded vessel inner type indoor unit results in badly air short cut phenomenon.
HVAC Air distribution Ceiling-mounted type indoor units Floor-standing type indoor units
Zhiwei Lian Dahai Qi Yuemei Wang
School of Energy and Environment Engineering,Zhongyuan University of Technology,Zhengzhou,China School of Mechanical Eng.,Shanghai Jiao Tong University,Shanghai,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
1340-1347
2009-11-06（万方平台首次上网日期，不代表论文的发表时间）