Modeling and parametric optimization of a liquid piston compressor with inner cooling tubes

This work proposes a new configuration of liquid piston compressors and methodology for their optimization, with special attention to heat removal from the compressing gas, in order minimize mechanical required compression process. The adopted approach starts solution governing equations through 0D model (lumped approach). A correlation transfer coefficient is presented calculate sensible gas cooling liquid. results are validated by comparison experimental numerical data literature performed CFD calculations. In proposed geometric configuration, removed tubes bundle inserted chamber, medium flowing inside tubes. was chosen because it simple design common materials manufacturing processes can be used its manufacturing. addition, no regeneration inserts cycle cycle, making that ideal cyclic operation. parametric study focuses on dependence overall efficiency number diameter speed piston. It found highest given at specific diameter, combination few larger higher gives best efficiency.