Visualization of the effects of spiral angle on the enhancement of in-tube flow boiling in microfin tubes

ASHRAE Transactions

Volumn 108 PART 2, Issue , 2002, Pages 509-515

  Oh, Se Yoon ^a   Bergles, Arthur E ^b  

^a LG Electronics Inc   (South Korea)

^b RENSSELAER POLYTECHNIC INSTITUTE   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AIR CONDITIONING; COOLING SYSTEMS; FLOW PATTERNS; REFRIGERANTS; TUBES (COMPONENTS);

MICROFIN TUBES;

HEAT TRANSFER;

EID: 0036459597     PISSN: 00012505     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (14)

1. Eckels, S.J., and M.B. Pate. 1991a. Evaporation and condensation of HFC-134a and CFC-12 in a smooth tube and a micro-fin tube. ASHRAE Transactions 97(2): 71-81. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
2. Eckels, S.J., and M.B. Pate. 1991b. An experimental comparison of evaporation and condensation heat transfer coefficient for HFC-134a and CFC-12. Int. J. Refrig 14: 70-77.
3. Fujie, K., M. Itoh, T. Innami, H. Kimura, W. Nakayama, and T. Yanagida. 1977. Heat transfer pipe. U.S. Patent 4,044,797.
4. Fujino, H., K. Kasai, and H. Nakata. 2001. Heat transfer characteristics in asymmetrical inner grooved tubes. Proceedings of 38th National Heat Transfer Symposium of Japan, 2001, Saitama, May 23-25, 2001, Vol. 3, pp. 887-888.
5. Ito, M., and H. Kimura. 1979. Boiling heat transfer and pressure drop in internal spiral-grooved tubes. Bulletin of the JSME 22(171): 1251-1257.
6. Kimura, H., and M. Ito. 1981. Evaporating heat transfer in horizontal internal spiral-grooved tubes in the region of low flow rates. Bulletin of the JSME 24(195): 1602-1607.
7. Miyara, A., K. Nonaka, and M. Taniguchi. 2000. Condensation heat transfer and flow pattern inside a herringbone-type micro-fin tube. Int. J. Ref. 23(2): 141-152.
8. Nozu, S., H. Katayama, H. Nakata, and H. Honda. 1998. Condensation of a refrigerant CFC11 in horizontal microfin tubes (proposal of a correlation equation for frictional pressure gradient). Exp. Therm. Fluid Sci. 18: 82-96.
9. Nozu, S., and H. Honda. 2000. Condensation of refrigerants in horizontal, spirally grooved microfin tubes: numerical analysis of heat transfer in the annular flow regime. J Heat Transfer 122(1): 80-91.
10. Oh, S.-Y. 1999. An experimental investigation of the effects of spiral angle on the evaporation heat transfer coefficients in microfin tubes with visualization technique. Ph.D. thesis, Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute, Troy, New York.
11. Oh, S.-Y., and A.E. Bergles. 1998. Experimental study of the effects of the spiral angle on evaporative heat transfer enhancement in micro fin tubes. ASHRAE Transactions 104(2): 1137-1143. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
12. Shinohara, Y., K. Oizumi, Y. Itoh, and M. Mori. 1987. Heat transfer tubes with grooved inner surface. U.S. Patent 4,658,892.
13. Wattelet, J.P., J.C. Chato, A.L. Souza, and B.R. Christoffersen. 1994. Evaporative characteristics of R-12, R-134a, and a mixture at low mass fluxes. ASHRAE Transactions 100(1): 603-615. Atlanta: American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.
14. Yoshida, S., T. Matsunaga, H.-P. Hong, and K. Nishikawa. 1988. Heat transfer enhancement in horizontally spirally grooved evaporator tubes. JSME International Journal, Series II, 31(3): 505-512.