Yang Guangyao, Zhang Shenghua, Li Xiaoli, et al. Experimental study on Boiling Heat Transfer of R134a on Single Horizontal Doubly- enhanced Tubes[J]. Journal of Refrigeration, 2007, 28(1): 26-32.
DOI:
Yang Guangyao, Zhang Shenghua, Li Xiaoli, et al. Experimental study on Boiling Heat Transfer of R134a on Single Horizontal Doubly- enhanced Tubes[J]. Journal of Refrigeration, 2007, 28(1): 26-32. DOI: 10.3969/j.issn.0253-4339.2007.01.006.
Experimental study on Boiling Heat Transfer of R134a on Single Horizontal Doubly- enhanced Tubes
An experimental study was carried out for the characteristics of boiling heat transfer of R134a on single hori-zontal double-enhanced tubes in flood evaporation.In addition
the thermal resistances of the tested tubes were dia-grammatically obtained with the Wilson plot technique.The result shows that under the same conditions
the fin num-ber of per inch
the type of cavity
the number of cavity
the diameter of orifice
and the symmetrical cavity could all influence the heat transfer on the outside
and the improvement of inside structure could increase the overall heat transfer coefficient and change the inside fluid pressure drop.