Dynamic Modeling of a Poppet Valve for use in a Rotating Spool Compressor

Key

11378

Conference Year

2016

Authors

Nathaniel Wood, Torad Engineering, United States of AmericaFollow
Craig R Bradshaw, Torad Engineering, United States of AmericaFollow
Joe Orosz, Torad Engineering, United States of AmericaFollow
Greg Kemp, Torad Engineering, United States of AmericaFollow
Eckhard A. Groll, Ray W. Herrick Laboratories, Purdue University, West Lafayette, INFollow

Keywords

spool compressor, poppet valve, dynamic model

Abstract

The operational efficiency of the rotating spool compressor, first introduced by Kemp et al. (2008), has been improved in recent years through the modeling of various elements in the compression cycle. In order to continue the advancements of the design, a model for predicting the discharge valve dynamics is introduced. The model is created using high-pressure measurements both upstream and downstream of the valve. The model is able to predict the initial valve displacement with a mean absolute percent error of 6.91%. The model is also able to predict the amount of time the valve is open in one valve oscillation with a mean absolute error of 9.51%.