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Effects of Roughness Arrangement on Heat Transfer in the Reciprocating Channel  

안수환 (경상대학교 기계항공공학부 해양산업연구소)
손강필 (경상대학교 대학원)
진용수 (경상대학교 실습선)
김성태 (경상대학교 농업시스템공학부)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.15, no.6, 2003 , pp. 502-509 More about this Journal
Abstract
This paper describes a detailed experimental investigation of heat transfer in a reciprocating rectangular channel fitted with rib structures with particular reference to the design of a piston for marine propulsive diesel engine. The parametric test matrix involves Reynolds number, reciprocating frequency, and reciprocating radius, respectively in the ranges, 1,000～6,000, 1.7～2.5 Hz, and 7～15 cm with four different rib arrangements. The rib arrangements have considerable influences on the heat transfer in the reciprocating channel due to the modified vortex flow structure. The experimental data confirm that the increases in the heat transfer can be seen in order of Case (b), Case (c), Case (d), and Case (a).
Keywords
Heat transfer; Reciprocating system; Rectangular channel; Rib arrangement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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