Research on the Mechanism of"Heterogeneousline-Mathematical Model"of ORC Vortex Expander
Firstly,the ORC organic Rankine cycle technology and the structure of the scroll expander are briefly described.Then,the geometric models of the constant cross-section(circular involute)scroll expander and the variable cross-section(circular involute-higher curve-circular involute)scroll expander are created according to the scroll profile meshing theory;and the corresponding leakage model is established.Finally,change trend of the volume of each working cavity and the length of the radial leakage line is analyzed,which lays a foundation for selecting the line structure of the scroll expander.
scroll expanderworking cavity volumeradial leakage line length
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