Proceedings of the Korean Society of Precision Engineering Conference (한국정밀공학회:학술대회논문집)
- 2005.06a
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- Pages.581-584
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- 2005
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- 2005-8446(pISSN)
Fatigue Life Evaluation and Optimization for District Heating Pipes Considering Operating Temperature Transition Data
운전이력을 고려한 지역난방 열배관의 피로수명 평가 및 최적화
- Ahn M.Y. (Mechanical Eng. Dept., SKKU) ;
- Jung S.W. (Mechanical Eng. Dept., SKKU) ;
- Lee S.M. (Mechanical Eng. Dept., SKKU) ;
-
Chang Y.S.
(Mechanical Eng. Dept., SKKU)
;
-
Choi J.B.
(Mechanical Eng. Dept., SKKU)
;
- Kim Y.J. (Mechanical Eng. Dept., SKKU) ;
- Kim S.H. (KDHC) ;
- Kim Y.H. (KDHC)
- 안민용 (성균관대학교) ;
- 정성욱 (성균관대학교) ;
- 이상민 (성균관대학교) ;
-
장윤석
(성균관대학교)
;
-
최재붕
(성균관대학교)
;
- 김영진 (성균관대학교) ;
- 김상호 (한국지역난방공사) ;
- 김연홍 (한국지역난방공사)
- Published : 2005.06.01
Abstract
A district heating(DH) system supplies environmentally-friend heat and is appropriate for reduction of energy consumption and/or air pollutions. The objectives of this paper are to systematize data processing of transition temperature, investigate its effects on fatigue life of DH pipes and optimization for size of DH pipes. A relational database management system as well as reliable fatigue life evaluation procedures is established for Korean DH pipes. Also, since the prototypal evaluation results satisfied both cycle-based and stress-based fatigue criteria. Through the optimum design process, the cross section diminished 18.64% and the CUF diminished 23.35%. So, it can be used as useful information in the future for optimal design, operation and energy saving via setting of efficient condition and stabilization of water temperature.
Keywords