PENG Bin, YANG Baokun, GONG Kaigang, et al. Research on thermodynamic characteristics and experimental verification of ORC oil-free scroll expander[J]. Thermal power generation, 2023, 52(8): 60-69.
PENG Bin, YANG Baokun, GONG Kaigang, et al. Research on thermodynamic characteristics and experimental verification of ORC oil-free scroll expander[J]. Thermal power generation, 2023, 52(8): 60-69. DOI: 10.19666/j.rlfd.202210243.
In order to study the thermodynamic characteristics of oil-free scroll expander in detail
leakage and thermodynamic model are established based on the first law of thermodynamics and the equation of energy and mass balance. Through the established leakage model
different working condition parameters are further changed to study the changing trend of the leakage in the scroll expander. Under the comprehensive consideration of the influence of heat transfer and leakage on the thermodynamic model
the Euler method is used to solve the established thermodynamic model
pressure
temperature and mass variation of the working medium with the orbiting angle of the main shaft during one operation cycle of the scroll expander are obtained and analyzed. Finally
an experiment platform is set up to test and verify the established thermodynamic model of the scroll expander
which can provide a certain reference for the performance analysis of the scroll expander.