밀집형 증기보일러의 고부하 열교환기 설계평가
Design Evaluation of Heavy Duty Heat Exchangers for Compact Steam Boilers
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Compact steam boiler is a useful heat exchanger in a space-intensive system. There are some constraints in terms of sizing and designing the space confined in the system which is usually used in vessels. In this study, design considerations for heavy duty heat exchangers of compact steam boilers are presented and evaluated. Especially, evaporator tubes of marine boiler which are exposed to a high temperature environment are considered. Also, extended surface designs with a high temperature are examined. In order to determine the criteria with considerations of both heat transfer rate and pressure drop in the heat exchanger, they are evaluated with major variables, such as the tube diameter, the number of tubes, and the tube length. Finally, the design parameters are estimated as the bare tubes are installed instead of the finned tubes.
Abstract
Compact steam boiler is a useful heat exchanger in a space-intensive system. There are some constraints in terms of sizing and designing the space confined in the system which is usually used in vessels. In this study, design considerations for heavy duty heat exchangers of compact steam boilers are presented and evaluated. Especially, evaporator tubes of marine boiler which are exposed to a high temperature environment are considered. Also, extended surface designs with a high temperature are examined. In order to determine the criteria with considerations of both heat transfer rate and pressure drop in the heat exchanger, they are evaluated with major variables, such as the tube diameter, the number of tubes, and the tube length. Finally, the design parameters are estimated as the bare tubes are installed instead of the finned tubes.
참고문헌 (17)
- Moh, J., "Convective heat transfer correlations for the compact heat exchanger with circular tubes and flat tubes-plate fins", 대한기계학회논문집 B권, 34(3), pp.291~299 (2010)
- Manual for boiler thermal calculation water tube and fire & smoke tube boiler, , 한국에너지기술 연구원, ~ (1984)
- Dirker, J., "Convective heat transfer coefficients in concentric annuli", Heat Transfer Engineering, 26(2), pp.38~44 (2005)
- Kakac, S., "Boilers, evaporators, and condensers" (1991), John Wiley & Sons Inc.
- Basu, P., "Boilers and Burners : Design and Theory" (2000), Springer-Verlag
- Incropera, F., "Introduction to heat transfer" (2007), John Wiley & Sons Pte Ltd.
- Maubach, K., "Rough annulus pressure drop-interpretation of experiments and recalculation for square ribs", Heat Mass Transfer, 15, pp.2489~2498 (1972)
- Parsons, D, "Boiler design (principles)" (1994), Turn Enterprises Pty Ltd.
- Belmiloudi, A., "Heat transfer :theoretical analysis, experimental investigations and industrial systems", pp.20~ (2011), INTECH
- Phu, N., "Characteristics of the water pressure drop considering heat transfer in the evaporator and condenser of a water chiller", 대 한기계학회논문집 B권, 35(12), pp.1293~1300 (2011)
- Kim, E., "Simplified optimum sizing and cost analysis for compact heat exchanger in VHTR", Nuclear Engineering and Design, 238, pp.2635~2647 (2008)
- Jin, Y., "Heat transfer and pressure drop of a transversally finned concentric annulus with longitudinal flow", Wärme- und Stoffübertragung, 28, pp.243~249 (1993)
- Stultz, C., "Steam (Its Generation and Use)", pp.30~ (1992), Babcock & Wilcox, Ohio
- Chen, J, "A correlation for boiling heat transfer to saturated fluids in convective flow", in 6th National Heat Transfer Conference, Boston, MA (1963)
- Singer, J., "Combustion (Fossil Power Systems)", pp.9~ (1981), Combustion Engineering, Inc.
- 伝熱工學資料, "日本機械學會" (1975)
- VDI-WärmeAtlas, "Verlag des Vereins Deutscher Ingenieure" (1984), Düsseldorf