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http://dx.doi.org/10.6110/KJACR.2013.25.3.143

Pool Boiling Heat Transfer Coefficients of R1234yf on Various Enhanced Surfaces  

Lee, Yohan (Department of Mechanical Engineering Graduate School, Inha University)
Kang, Dong Gyu (Department of Mechanical Engineering Graduate School, Inha University)
Seo, Hoon (Department of Mechanical Engineering Graduate School, Inha University)
Jung, Dongsoo (Department of Mechanical Engineering, Inha University)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.25, no.3, 2013 , pp. 143-149 More about this Journal
Abstract
In this work, nucleate pool boiling heat transfer coefficients (HTCs) of R134a and R1234yf are measured, on flat plain, 26 fpi low fin, Turbo-B, Turbo-C and Thermoexcel-E surfaces. All data are taken at the liquid pool temperature of $7^{\circ}C$, on a small square copper plate ($9.53mm{\times}9.53mm$), at heat fluxes from $10kW/m^2$ to $200kW/m^2$, with an interval of $10kW/m^2$. Test results show that nucleate boiling HTCs of all enhanced surfaces are greatly improved, as compared to that of a plain surface. Nucleate pool boiling HTCs of R1234yf are very similar to those of R134a, for the five surfaces tested.
Keywords
Pool boiling heat transfer coefficient; R1234yf; Low-fin surface; Turbo-B enhanced surface; Turbo-C enhanced surface; Thermoexcel-E enhanced surface;
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Times Cited By KSCI : 1  (Citation Analysis)
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