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Characteristics of air-conditioning cooling operation under
variable condition |
1.School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.School of Energy and Power Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212000, China |
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Abstract Taking an airconditioning under cooling condition as research object, the variation characteristics of evaporating and condensing pressure, superheat temperature, subcooling temperature, suction volume and refrigerant circulation flow were investigated based on theoretical and experimental method with varied indoor environment humidity and airflow. The results show that when the evaporator load is decreased, the reducing amplitude of evaporating pressure is greater than that of condensing pressure to result in the decreasing of gas transmission coefficient. When the suction volume increases, the refrigerant circulation flow is reduced to lead to the declining of refrigerating capacity of system.
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Received: 31 December 2012
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