International Journal of Engineering and Technology

Experimental and Simulation studies on single prime mover travelling wave thermoacoustic system have been performed for various working fluids such as Argon, Helium etc. at different operating pressures. Then simulation study on twin prime mover travelling wave thermoacoustic system is performed using DeltaEC software where resonators, regenerators, cold heat exchangers, ambient heat exchangers, hot heat exchangers and stack ducts are modeled. The system performance is studied at various operating pressures for various working fluids such as pure gases and binary mixture of helium and Argon. The newly modeled twin prime mover system has better performance in terms of pressure amplitude and resonance frequency when compared to that of a single prime mover travelling wave system. The studies on Helium/Argon mixtures in various proportions as a working fluid in twin primemover travelling wave system are performed. The helium/Argon mixture at 60/40 ratio proves to be more efficient as its Prandtl number is less. The pressure amplitude of 0.1224 Mpa and frequency of 30 Hz at 1 Mpa operating pressure is recorded at He/Ar 60/40 ratio mixture.