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      • KCI등재

        Performance of an OFF-Board Test Rig for an Automotive Air Conditioning System

        SANTANU P. DATTA,PRASANTA K. DAS,SIDDHARTHA MUKHOPADHYAY 대한설비공학회 2013 International Journal Of Air-Conditioning and Refr Vol.21 No.3

        An o®-board test bench has been developed for evaluating the performance of an automotive air conditioning system. The facility consists of the mechanical hardware used in an automobile along with a large number of additional sensors and a standalone control system that mimics the operations in a car. The performance of the individual components and the system has been investigated for two major independent variables of running automobiles, namely the compressor speed and the speed of the evaporator fan. Correlations for the volumetric e±ciency of the compressor and COP of the system have been developed. While the refrigerant °ow rate is in°uenced mainly by compressor speed, the COP depends on both the operating variables. The investigation also establishes that the design of the rig, the selection and placement of the sensors and the method of measurement are suitable for its further deployment under dynamic condition and for fault diagnosis.

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