Two-Stage Wave Disk Engine Concept and Performance Prediction

Paper #:
  • 2017-01-2046

Published:
  • 2017-09-19
Citation:
Akbari, P. and Agoos, I., "Two-Stage Wave Disk Engine Concept and Performance Prediction," SAE Technical Paper 2017-01-2046, 2017.
Pages:
12
Abstract:
The Wave Disk Engine (WDE) is a novel engine that has the potential for higher efficiency and power density of power-generation systems. A recent version of wave disk engine architecture known as the two-stage WDE has been studied to address existing challenges of an existing WDE. After describing the engine operation, a cold air-standard thermodynamic model supporting the physical phenomena occurring inside the device is introduced to evaluate performance of the engine. The developed model is general and does not depend on the shape of the wave rotor, it can be applied to radial and axial combustion wave rotors integrated with turbomachinery devices. The analysis starts with predicting internal waves propagating inside the channels of the engine and linking various flow states to each other using thermodynamics relationships. The goal is to find analytical expressions of work output and efficiency in terms of known pressure and temperature ratios. The results are useful to establish the upper limiting performance of the wave engine and to assess numerical simulations or experimental measurements over a wide range of operating conditions. This paper is another effort towards commercialization of the wave rotor technology in near future.
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