Experimental Study on the Pressure and the Power Input of a CO2 Air Conditioning System

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Nguyen, Phuduc; Vo, Kimhang; Dang, Thanhtrung

Experimental Study on the Pressure and the Power Input of a CO2 Air Conditioning System Journal Article

Mechanics, Materials Science & Engineering, 16 , 2018, ISSN: 2412-5954.

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Authors: Phuduc Nguyen, Kimhang Vo, Thanhtrung Dang

ABSTRACT. This paper presented investigations on the pressure and the power input of a CO2 air conditioning system. In this study, the cycle changes from the vapour region to the two phase region for the conventional compressor and CO2 compressor, respectively. The suction and discharge pressures increase when the ambient temperature increases. When the ambient temperature increases from 31.8 °C to 40.5 °C, the compressor current increases from 2 A to 2.3 A. The suction pressure and the compressor current decrease as reducing the balance pressure of the system. Comparison between the gas cooler with heat transfer area of 6 m2 and the gas cooler with heat transfer area of 3 m2, the gas cooler with high heat transfer area has increased the cooling capacity of the system.

Keywords: air conditioning, CO2 refrigerant, pressure, power input, evaporator, heat transfer

DOI 10.2412/mmse.20.29.917

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