Influencing Factors on Heat Transfer Performance for Flow Boiling of R410A in Horizontal Micro-Fin Tubes

Abstract:

Flow boiling heat transfer performances of refrigerant R410A in the horizontal micro-fin tubes with different geometric parameters were investigated. The dependencies of forced flow boiling heat transfer coefficient of R410A on mass flow rate, heat flux and were studied and the mechanism of flow boiling heat transfer under different working conditions were discussed. For a comparison, the influences of fin number and fin height of micro-fin tubes on heat transfer were also studied. The differences of heat transfer coefficient between R22 and R410A were analyzed. It is found that the heat transfer coefficients were nearly same for R22 and R410A and, in fact, the heat transfer coefficient of R22 was just a little higher than that of R410A by 4-7%.

• Periodical: Advanced Materials Research (Volumes 472-475)
• Pages: 1676-1680
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.472-475.1676
• Online since: February 2012
• Authors: Hong Ping He, Hu Gen Ma, Jian Mei Bai
• Keywords: Flow Boiling, Heat Transfer Characteristic, Influencing Factor, Micro-Fin Tube, R410A

References

[1] A. E. Bergles: Experimental Thermal and Fluid Science Vol. 26 (2002), pp.335-344.

[2] M. H. Kim , J. S. Shin: International Journal of Refrigeration Vol. 28 (2005) , pp.940-948.

[3] X. T. Duan, H. G. Ma and Z. M. Wu, et al: Journal of Chemical Industry and Engineering(In Chinese) Vol. 57 (2006) , pp.2289-2292.

[4] G. L. Ding, H. T. Hu, X. C. Huang, et al: International Journal of Refrigeration Vol. 32 (2009), pp.150-161.

[5] Y. Kim, K. Seo, J. T. Chung: International Journal of Refrigeration Vol. 25 (2002), pp.716-730.

[6] S. Wellsandnt, L. Vamling: International Journal of Refrigeration Vol.28 (2005), pp.901-911.

[7] X. C. Huang, G. L. Ding, H. T. Hu et al:  Experimental Thermal and Fluid Science Vol. 34 (2010), pp.845-856.