Mathematical Modeling and Experimental Research on Scroll Expander
A scroll expander is applied to a compressed air energy storage system in order to improve the energy conversion efficiency. Based on the geometric model, mass conservation equation, ideal gas equation and energy conservation equation, a mathematical model of the scroll expander is developed in order to describe the variation mechanism of the volume, mass, pressure and temperature of the air in different chambers. A prototype is constructed and tested to verify the simulation model. The mathematical model is implemented in Matlab and verified by comparing the simulation with the experimental results. The simulation agrees well with the experimental results.
X. H. Yang et al., "Mathematical Modeling and Experimental Research on Scroll Expander", Applied Mechanics and Materials, Vols. 229-231, pp. 1900-1903, 2012