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http://dx.doi.org/10.5050/KSNVE.2013.23.7.654

Analyses on Working Frequency of A γ-type Free-piston Stirling Engine  

Jang, Seon-Jun (Innovation KR)
Sim, Kyuho (Dept. of Mechanical System Design Engr., Seoul National University of Sci. & Tech.)
Lee, Yoon-Pyo (Green City Technology Institute, KIST)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.7, 2013 , pp. 654-661 More about this Journal
Abstract
The dynamic characteristics of a free-piston stirling engine(FPSE) with regard to the working frequency is investigated from theoretical and experimental studies. The FPSE is modeled as a two degree-of-freedom linear vibration system. A theoretical expression on the working frequency is derived from the instability condition for self-excitation based on the linear vibration model. A ${\gamma}$-type free-piston stirling engine is fabricated for experimental studies, and its working frequency is measured on various heater temperatures. Comparisons between the theoretical and experimental results reveal that the working frequency of the test FPSE depends on both the temperature of the compression space and the temperature difference between the expansion and compression spaces.
Keywords
Energy Conversion; Stirling Engine; Working Frequency; Self-excitation;
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Times Cited By KSCI : 1  (Citation Analysis)
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