| Summary: | 碩士 === 國立臺灣大學 === 機械工程學系研究所 === 86 === The influences of design parameters on two-stage air twin screw compressor
performances are theoretically investigated.
A mathematical model considering the effect of real gas, gas leakage, and
heat exchange between gas and injected oil, etc. is developed. The system of
equations is solved using a Runge - Kutta integration algorithm with rotating
angle of the male rotor as the independent variable. The model is corrected by
experimental data and has better prediction ability later. The model is utiliz
ed to analyze the performance of a two - stage air twin screw compressor. The
design parameters considered to improve performance in the thesis include buil
d-in volume ratio,intermediate pressure,intermediate temperature, oil flowrate
, oil inlet temperature,and angular velocity of male rotor. Optimized designed
parameters and operating conditions are presented. The numerical results
show good agreements with experimental data provided by the manufacturer or ob
tained from relevant literature. From the results of this study, the effect of
design parameters can be realized. Besides, it may beused as a reference for
manufacturers in designing or improving similar machines.
|
|---|
