A THEORETICAL MODEL AND EXPERIMENTAL VALIDATION OF A SLIDING VANE ROTARY COMPRESSOR

摘要

The authors have developed a comprehensive model for SVRC machines based on a suitable expression of the conservation laws, modeling together with the internal transformations the air dynamics in suction and discharge circuits, including transient and wave propagation effects. Non-conventional complex processes have also been included (oil/air saturation, oil/air separation, characteristic heat transfer, etc.), in order to closely represent the real behaviour. A further improvement is presented in this paper: the oil circulation model has been included, a dynamic modeling of the blade orientation inside the rotor slot as well as a modeling for the power absorbed due to friction. A specific test bench has been built to validate the effectiveness of the overall modeling, in terms of the conventional performance parameters as well as more machine dependent quantities.