摘要
建筑能源消耗日益严峻,暖通空调能耗占比持续上升;在保证室内热舒适的条件下,合理降低建筑夏季空调能耗是实现建筑节能的重要措施。根据落地扇产生的气流扰动对热环境的影响效果,通过实验测试及舒适性问卷的方式研究落地扇对办公室内的温度分布、舒适性以及节能性的影响,从而实现节能条件下的室内热舒适,并给出落地扇与空调联合运行的建议。研究结果表明:落地扇与空调联合运行提高温度分布均匀性、加强室内气流扰动,联合运行相比空调单独运行时房间较高温度区域获得最高1.4℃的温降;平均热感觉的优化程度最高可从有一点热(0.37)变化到有一点冷(-0.52);落地扇扰动作用有效降低空调回风口的温度,减少空调高能耗运行的时间,从而实现最高13.82%的节能效率。
Building energy consumption is increasingly serious,HVAC energy consumption proportion continues to rise.Under the condition of indoor comfort,it is an important measure to reduce the energy consumption of air conditioning in summer.In this paper,according to the effect of airflow disturbance of floor fan on indoor thermal environment,the influence of floor fan on temperature distribution,comfort and energy saving in office were studied through experimental test and comfort questionnaire,so as to achieve indoor thermal comfort under energy-saving conditions,and suggestions were given for the combined operation of floor fans and air conditioning.The results show that the combined operation of floor fans and air conditioners can improve the temperature distribution uniformity and indoor airflow disturbance.Compared with the single operation of the air conditioner,the combined operation can obtain the highest temperature drop of 1.4℃in the higher temperature area of the room.The average thermal sensation optimization degree can be changed from a little hot(0.37)to a little cold(-0.52).The disturbance effect of floor fan can effectively reduce the temperature of the air return outlet of the air conditioner,and reduce the operation time of the air conditioner with high energy consumption,thus achieving the maximum energy saving efficiency of 13.82%.
作者
高敏
毕海权
王宏林
Gao Min;Bi Haiquan;Wang Honglin(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,610031)
出处
《制冷与空调（四川）》
2023年第3期434-443,共10页
Refrigeration and Air Conditioning
关键词
落地扇与空调联合运行
气流扰动
热舒适
能耗
floor fan and air-conditioner combined operation
airflow disturbance
thermal comfort
energy consumption
