Zengyao Li

Development and numerical investigation of a claw compressor with novel symmetric multi-claw rotors for PEMFC air supply systems

The claw compressor, characterized by oil-free operation, compact structure, and stable performance, is critical for enhancing the power density and efficiency of proton exchange membrane fuel cell(PEMFC). The rotor geometry significantly influences the thermodynamic performance...

Theoretical framework and thermodynamic performance of a scroll compressor with hybrid profiles for electric vehicle heat pumps

Abstract Heat pumps are critical for enhancing the driving range of electric vehicles. Conventional scroll compressors suffer low efficiency and poor adaptability under extreme conditions, leading to insufficient heating and cooling performance and significant energy consumption....