Energy-Efficient Air Conditioning System with Combined a Ceiling Fan for Thermal Comfort in an Office  

作　　者：Linlan Chang Win-Jet Luo Indra Permana Bowo Yuli Prasetyo Alya Penta Agharid Fujen Wang 

机构地区：[1]Graduate Institute of Precision Manufacturing,National Chin-Yi University of Technology,Taichung,41170,Taiwan [2]Department of Refrigeration,Air Conditioning and Energy Engineering,National Chin-Yi University of Technology,Taichung,41170,Taiwan [3]Department of Refrigeration and Air Conditioning Engineering,Politeknik Negeri Bandung,Bandung,40559,Indonesia

出　　处：《Energy Engineering》2025年第5期1771-1787,共17页能源工程(英文)

基　　金：support by the National Science and Technology Council under Grant No.NSTC 112-2221-E-167-017-MY3.

摘　　要：Heating,Ventilation,andAir Conditioning(HVAC)systems are critical formaintaining thermal comfort in office environments which also crucial for occupant well-being and productivity.This study investigates the impact of integrating ceiling fans with higher air conditioning setpoints on thermal comfort and energy efficiency in office environments.Field measurements and questionnaire surveys were conducted to evaluate thermal comfort and energysaving potential under varying conditions.Results show that increasing the AC setpoint from 25○C to 27○C,combined with ceiling fan operation,reduced power consumption by 10%,achieving significant energy savings.Survey data confirmed that 85%of participants reported consistent thermal sensations across all conditions,with ceiling fans effectively compensating for higher setpoints through enhanced air circulation.CFDsimulations revealed that mediumspeed ceiling fan operation produced the most uniformairflowdistribution,with an average air velocity of 0.45 m/s,and minimized temperature variations,ensuring balanced thermal conditions.Temperature analysis showed a reduction in hotspots and cold zones,maintaining an average temperature deviation of less than±0.5○C.Predicted Mean Vote(PMV)evaluations at a 27○C setpoint indicated improved thermal comfort,with average PMV values around−0.3,corresponding to a“neutral”thermal sensation.These findings demonstrate the effectiveness of integrating ceiling fans with HVAC systems in achieving energy efficiency and occupant comfort,offering a sustainable approach to reducing AC energy consumption in office environments.

关 键 词：Thermal comfort ceiling fan field measurement questionnaire survey numerical simulation 

分 类 号：TU831.3[建筑科学—供热、供燃气、通风及空调工程]