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http://dx.doi.org/10.5293/kfma.2015.18.1.029

Mechanical Load Performance Measurements of a Low Temperature Differential Stirling Engine with Water-Sprayed Heat Transfer according to Supply Water Flow Rates and Temperatures  

Sim, Kyuho (Department of Mechanical System Design Engineering, Seoul Nat'l Univ. of Sci. and Tech.)
Jeong, Min-Seong (Department of Mechanical System Design Engineering, Seoul Nat'l Univ. of Sci. and Tech.)
Lee, Yoon-Pyo (Small & Medium Enterprises Support Center, Korea Institute Science and Technology)
Jang, Seon-Jun (Innovation KR)
Publication Information
The KSFM Journal of Fluid Machinery / v.18, no.1, 2015 , pp. 29-36 More about this Journal
Abstract
Recently, Stirling engines are emerging as a key device for power conversion of renewable energy or waste energy. This study develops a LTDSE(Low Temperature Differential Stirling Engine) using a water spray for higher heat transfer and performs load performance tests for various flow rates and temperatures of hot water spray for variable engine loads emulated by a mechanical friction device. Internal temperature and pressure, working frequency and inlet and outlet temperature of the supply water are measured. As a result, the increases in flow rate and temperature of hot water respectively enhance the power output, efficiency and the working frequency, while the increasing engine load leads to decreases in working frequency but increases in the pressure amplitude. Eventually, it is revealed there exists a maximum shaft power of the test engine.
Keywords
Stirling engine; Low temperature heat source; Spray; Heat transfer enhancement; Mechanical friction load;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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