[1] Wang XueshengDai JingjingCong JianliChen Qinzhu,. Pool boiling performance of porous surface tubesunder vacuum conditions [J]. Journal of Southeast University (English Edition), 2010, 26 (2): 339-342. [doi:10.3969/j.issn.1003-7985.2010.02.043]
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Pool boiling performance of porous surface tubesunder vacuum conditions(
)
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 26
- Issue:
- 2010 2
- Page:
- 339-342
- Research Field:
- Energy and Power Engineering
- Publishing date:
- 2010-06-30
Info
- Title:
- Pool boiling performance of porous surface tubesunder vacuum conditions
- Author(s):
- Wang XueshengDai JingjingCong JianliChen Qinzhu
- School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China
- Keywords:
- pool boiling; porous surface tube; heat transfer enhancement
- PACS:
- TK172
- DOI:
- 10.3969/j.issn.1003-7985.2010.02.043
- Abstract:
- Two types of tube bundles are designed, which are, respectively, composed of six tubes arranged in the boiling chamber.The nucleate pool boiling performance of smooth tube bundles and sintered porous surface tube bundles with deionized water as a medium are experimentally studied at atmospheric and sub-atmospheric pressures, respectively.The experimental results indicate that the boiling heat transfer coefficients of the two types of tube bundles increase with the increase in pressure under vacuum conditions as they behave under ordinary pressure.As the pressure varies from 10 to 100 kPa, it also can be seen that the heat transfer coefficient of the sintered porous surface tube is increased by 0.2 to 4 times compared with the smooth one under the same operating parameters.In addition, the experimental data show that a definite bundle effect exists in both sintered porous surface tubes and smooth tubes under vacuum conditions.
References:
[1] Webb R L.Principles of enhanced heat transfer[M].New York: Wiley-Interscience Publication, 1994.
[2] Thome J R.Enhanced boiling heat transfer[M].New York: Hemisphere Publishing Corporation, 1990.
[3] Jiang Y Y, Wang B X, Wang W C, et al.Boiling heat transfer on machined porous surfaces with structural optimization[J].International Journal of Heat and Mass Transfer, 2001, 44(24): 443-456.
[4] Liu Along, Xu Hong, Wang Xuesheng, et al.Boiling heat transfer on composite power porous surface tubes[J].Journal of Chemical Industry and Engineering, 2006, 57(4): 726-730.(in Chinese)
[5] Marto P J, Lepere V J.Pool boiling heat transfer from enhanced surfaces to dielectric fluids[J].Journal of Heat Transfer, 1982, 104(2): 292-299.
[6] Cong Jianli.Research on heat transfer enhancement of adsorbent bed and evaporator in adsorption refrigeration[D].Shanghai: School of Mechanical and Power Engineering of East China University of Science and Technology, 2009.(in Chinese)
[7] Webb R L.Nucleate boiling on porous coated surfaces[J].Heat Transfer Engineering, 1981, 4(3): 71-82.
[8] Yang Shaohua, Gao Xuenong, Wang Shiping, et al.Experimental study on nucleate pool boiling heat transfer of R142b outside horizontal tube bundle[J].Journal of Refrigeration, 1999(3): 1-4.(in Chinese)
Memo
- Memo:
-
Biography: Wang Xuesheng(1965—), male, doctor, professor, wangxs@ecust.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.50706012).
Citation: Wang Xuesheng, Dai Jingjing, Cong Jianli, et al.Pool boiling performance of porous surface tubes under vacuum conditions[J].Journal of Southeast University(English Edition), 2010, 26(2):339-342.