WORK CHARACTERISTICS OF RECIPROCATING COMPRESSOR FOR REFRIGERATION SYSTEM DEVELOPED WITH COMPUTER SIMULATION
In the operation of one refrigerating system in each moment there is a balance point of the system as a result of interaction of main components: compressor, condenser, evaporator and expansion device. In order to find a balance point, it is necessary to consider the performance of each component separately.The compressor has the biggest influence on the work of the refrigerating system. As the reciprocating type is most used, in this paper a work characteristics (performances) of reciprocating compressor is considered. The factors which have effect on the compressor performance are analyzed, such as: re-expansion of gas from clearance volume, pressure drops, heat gain to refrigerant, internal gas leakage and deviation from isentropic compression. Mathematical equations are introduced in order to calculate the compressor volumetric efficiency.For a given compressor, it means known design parameters, the work characteristics can be defined as the refrigeration capacity depending of evaporating and condensing temperatures Qe = Qe (te, tc). In addition, on a similar way, the effective power consumption is defined as Pe = Pe (te, tc). Using equations for calculation of volumetric efficiency, refrigeration cycle and flows, a mathematical model is created, which is used as a base for computer programme. It is applied on concrete example on a compressor from known manufacturer and the results are compared with the technical data declared by the manufacturer.
Risto Ciconkov Vasil Ciconkov
Skopje University, Faculty of Mech. Eng., PO Box 464, Skopje, Macedonia Energija doo, Londonska 1 b, Skopje , Macedonia
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）