대한설비공학회:학술대회논문집 (Proceedings of the SAREK Conference)
- 대한설비공학회 2007년도 동계학술발표대회 논문집
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- Pages.546-551
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- 2007
고온재생기 성능 변화에 미치는 전열관 형상 및 배열의 영향
Effect of the Tube Geometry and Arrangement on the Performance of a High Temperarture Generator
- Lee, In-Song (Graduate School, School of Mechanical Engineering, Sungkyunkwan University) ;
- Cho, Keum-Nam (DSchool of Mechanical Engineering, Sungkyunkwan University)
- 발행 : 2007.11.30
초록
The present study numerically investigated the tube geometry and arrangement on the performance of a high temperature generator (HTG) of the double effect LiBr-water absorption system. FLUENT, as a commercial code, was used to estimate the thermal performance of the HTG. Key parameters were the spacing raito of circular and flattened tubes, the pitch ratio of the rib on the flattened tube, and total heat transfer area of the HTG. Temperature and velocity profiles around the tubes of the HTG were calculated to estimate the thermal performance of the HTG. When the spacing ratio of circular and flattened tube is 1.11 and 0.73, the exhaust gas temperature is