Testing and modeling of a miniature air compressor for a prototype free-piston engine

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A miniature free-piston engine air compressor is under development as a portable compact power supply. The performance of the air compressor side of the device was measured by separating the compressor portion from the free-piston engine and bench testing it independently. The compressor was operated over a speed range of 1000 to 10,000 cycles per minute, and output mass flow of air was measured with a load pressure range of 0 to 415 kPa (0 to 60 psi) above ambient. Two thermodynamic models of the air compressor were created. The first divided the compressor cycle into four ideal gas processes. The second model simulated the cycle through many small steps, calculating the thermodynamic states iteratively using conservation of energy for an open system. Valve effects and leakage losses were included in both models. The models were validated by comparing the results with experimental data.

Original languageEnglish (US)
Title of host publicationASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015
PublisherAmerican Society of Mechanical Engineers
ISBN (Electronic)9780791857236
DOIs
StatePublished - Jan 1 2015
EventASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015 - Chicago, United States
Duration: Oct 12 2015Oct 14 2015

Publication series

NameASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015

Other

OtherASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015
CountryUnited States
CityChicago
Period10/12/1510/14/15

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Johnson, D. L., Kittelson, D. B., & Durfee, W. K. (2015). Testing and modeling of a miniature air compressor for a prototype free-piston engine. In ASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015 (ASME/BATH 2015 Symposium on Fluid Power and Motion Control, FPMC 2015). American Society of Mechanical Engineers. https://doi.org/10.1115/FPMC2015-9611