Characterization of a dynamic micro heat engine with integrated thermal switch

L. W. Weiss, J. H. Cho, K. E. McNeil, C. D. Richards, D. F. Bahr, R. F. Richards

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Progress toward the realization of an external combustion dynamic micro heat engine is documented. First, the development of a thermal switch suitable to control heat transfer to and from the micro heat engine is described. Second, the integration of a thermal switch with an engine is detailed. The thermal switch is shown to be an effective means to control heat transfer into the engine from a continuous heat source and out of the engine to a continuous heat sink. The use of the thermal switch is shown to enable engine cycle speeds up to 100 Hz, engine efficiencies up to 0.095% and power output up to 1.0 mW. The internal irreversibility of the engine is measured to be 23%.

Original languageEnglish (US)
Article numberS14
Pages (from-to)S262-S269
JournalJournal of Micromechanics and Microengineering
Volume16
Issue number9
DOIs
StatePublished - Sep 1 2006

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