A07 Numerical Model of Transient Flow Simulation in Circulating Flow Stirling Engine with pulse converter

Abstract

We had designed and prototyped original gamma-type circulating flow stirling engine (CFSE) with pulse converter branch and confluent connection in operating gas flow for application of waist heat recovering, low temperature differential Stirling engine. Though the pulse converters are incomplete preventing reverse flow compared with lead valve, they are simpler, low pressure loss and wide section area, it could change the heater and cooler flow into counter flow heat exchanger. One-dimensional numerical method is developed for simulating the operation gas transient flow through the pulse converter using a method of characteristics that had been adopted to pulse flow driven turbochargers.