Design Optimization and Efficiency Modeling of a Hot Gas Vane Motor

Abstract

The purpose of this work is to model and analyze the dynamics of a hot gas vane motor for later design optimization work. The pneumatic motor is a portable direct drive actuator that is intended as an alternative to battery-powered electromagnetic motors. It is believed that the vane motor could eventually replace other solution for portable power generation. An optimal design of the motor is desirable to maximize portability and efficiency. Modeling the device will make it possible to optimize the mechanical efficiency by altering the geometry of the motor’s vanes and respective chambers. While the efficiency of the motor is affected to a great extent by its geometry, losses from leakage and friction will also be considered. For the device to remain portable, there are limitations on the size of the final design which will restrict the optimal efficiency of the vane motor.