近期，我院教师沈九兵，研究生李志超等的研究成果“Design and analysis of a suction pretreatment system for the air compressor”在《Energy Conversion and Management》上发表
论文简介如下：
Air compressor is an important industrial equipment to supply high pressure air for pneumatic tools and instruments. Problems of power growth and frequent overheating protection happen in summer due to the high suction air temperature. A suction pretreatment system composed of a cooling tower, a refrigerator, a circulating pump and a water–gas heat exchanger is designed in this paper. Low temperature water produced by the cooling tower and refrigerator can cool down the suction air in the water–gas heat exchanger. Mathematical models of the suction pretreatment system are established and solved using the local summer climate parameters. The influence of suction temperature and moisture content on the specific power of the compressor is discussed firstly. The percentage of power saving (PPS) is defined to analyze the system’s energy saving effect which is a ratio of the saved compression power to the pretreatment system operating power. Moreover, the payback period of the proposed system is studied to guide the equipment selection. According to the results, the function of the designed suction pretreatment system is suggested to focus on the air dry bulb temperature reduction. The suction air temperature should be not lower than 26℃. Parameters of the cooling tower have great influence on both the percentage of power saving and the payback period. Optimal cooling tower parameters exist to get a maximum PPS and the smallest payback period. For an air compressor with a suction air flow of 160 m3/min used in the studied high temperature and humidity area, the system payback period ranges from 83 to 90 days which is acceptable for industrial application.
全文下载：https://doi.org/10.1016/j.enconman.2022.115675
