Measurement of Vehicle Air Conditioning Pull-Down Period

Thomas, John F.¹  Huff, Shean P.¹  Moore, Larry G.¹  West, Brian H.¹ 

[1]Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

关键词: vehicle air conditioning;   

DOI  :  10.2172/1287033
RP-ID  :  ORNL/TM-2016/275
PID  :  OSTI ID: 1287033
Others  :  Other: VT0204000
Others  :  CEVT032

学科分类：工程和技术（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Air conditioner usage was characterized for high heat-load summer conditions during short driving trips using a 2009 Ford Explorer and a 2009 Toyota Corolla. Vehicles were parked in the sun with windows closed to allow the cabin to become hot. Experiments were conducted by entering the instrumented vehicles in this heated condition and driving on-road with the windows up and the air conditioning set to maximum cooling, maximum fan speed and the air flow setting to recirculate cabin air rather than pull in outside humid air. The main purpose was to determine the length of time the air conditioner system would remain at or very near maximum cooling power under these severe-duty conditions. Because of the variable and somewhat uncontrolled nature of the experiments, they serve only to show that for short vehicle trips, air conditioning can remain near or at full cooling capacity for 10-minutes or significantly longer and the cabin may be uncomfortably warm during much of this time.