기관 폐열 회수를 위한 열교환기의 Baffle 길이 변경에 따른 성능 예측에관한 수치 해석적 연구
An Investigation on Flow and Structural Characteristics of Heat Exchanger in Rankine Steam Cycle for Co-generation System
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A 2-loop waste heat recovery system with Rankine steam cycles for the improvement of fuel efficiency of gasoline vehicles has been investigated. A high temperature loop is used to recover waste heat from exhaust gas and a low temperature loop is used to recover waste heat from cold engine coolant. This paper has dealt with a layout of low temperature loop system,the review of the velocity contours through numerical analysis. According to the result of analysis, the designed heat exchanger. And comparing with flow analysis results, LT Boiler is safe to operation.
Abstract
A 2-loop waste heat recovery system with Rankine steam cycles for the improvement of fuel efficiency of gasoline vehicles has been investigated. A high temperature loop is used to recover waste heat from exhaust gas and a low temperature loop is used to recover waste heat from cold engine coolant. This paper has dealt with a layout of low temperature loop system,the review of the velocity contours through numerical analysis. According to the result of analysis, the designed heat exchanger. And comparing with flow analysis results, LT Boiler is safe to operation.
참고문헌 (5)
- H. S. Heo, "Technology Trends of Rankine Steam Cycle for Engine Waste Heat Recovery", Auto Journal of KSAE, 32(5), pp.23~32 (2010)
- 허형석, "엔진 냉각수 폐열 회수를 위한 랭킨 스팀 사이클용 보일러의 성능 설계", 한국자동차공학회 논문집, 19(5), pp.58~66 (2011), 한국자동차공학회
- J. Ringler, "Rankine Cycle for Waste Heat Recovery of IC Engines", SAE, 01 (2009)
- S. J. Bae, "An Investigation on Working Fluids for an Exhaust Waste Heat Recovery System of a Gasoline Engine", Annual Conference of KSAE, pp.151~158 (2009)
- Hinze, J. O, "Stability Improvement of Center Lathes", J. of KSPE, 2(2), pp.123~126 (1992)