Open AccessInfluence of Air Supply Height on Sleep Comfort Through Computational Fluid Dynamics Simulation
Author(s) -
Xiling Gao,
Libin Shang,
Rujie Xia,
Xiaodong Zhang,
Wensheng Yao
Publication year - 2021
Publication title -
heat and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.283
H-Index - 29
ISSN - 0392-8764
DOI - 10.18280/ijht.390415
Subject(s) - computational fluid dynamics , bedroom , environmental science , air conditioning , simulation , room air distribution , automotive engineering , topsis , meteorology , computer science , engineering , mechanical engineering , operations research , civil engineering , aerospace engineering , geography
Taking the bed in the bedroom as an air-conditioning system (ACS), this paper attempts to disclose the influence of air supply height (ASH) on sleep comfort. Specifically, a computational fluid dynamics (CFD) model was established to simulate the air temperature distribution, air speed, and carbon dioxide content (CDC) indoor at five ASHs of the ACS. The simulation results were compared with lab data. On this basis, the aeration efficiency (AE), temperature regulation risk (TRR), and energy-use factor (EUF) of the ACS were analyzed under different working conditions, and the overall efficacy of the ACS was assessed comprehensively by the technique for order of preference by similarity to ideal solution (TOPSIS).