کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
646756 | 884570 | 2013 | 7 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Thermal performance analysis of reciprocating compressor with stepless capacity control system Thermal performance analysis of reciprocating compressor with stepless capacity control system](/preview/png/646756.png)
On the basic principle of stepless capacity control system for large reciprocating compressor, the thermal cycle was analyzed. The equations for the process of suction, reverse flow, compression, discharge and expansion of clearance gas were established. According to these equations, p–V diagrams at various situations were simulated. An experimental platform was setup and the compressor with designed stepless capacity control system run well. The experimental results show that the capacity of compressor can be regulated steplessly, and the motor power is reduced proportionally with respect to the reduction of capacity. During the suction process, both the flow resistance of valve and the pressure fluctuation in cylinder can be reduced by opening the suction valves with the actuators. The simulated and experimental results showed good coincidence. The clearance volume and valve clearance Mach number had a negative influence on the thermal performance of compressor with stepless capacity control system.
► Flow resistance of valve can be reduced and pressure fluctuation can be reduced.
► Equivalent Mach number of reverse flow is much higher than that of suction process.
► Response of stepless capacity control system is important for regulation accuracy.
► Clearance and valve clearance Mach number have influence on thermal performance.
Journal: Applied Thermal Engineering - Volume 54, Issue 2, 30 May 2013, Pages 380–386