Two-phase frictional pressure drop with pure refrigerants in vertical mini/micro-channels

Ali, Muhammad Shujaat and Anwar, Zahid and Mujtaba, Muhammad Abbas and Soudagar, Manzoore Elahi M. and Badruddin, Irfan Anjum and Safaei, Mohammad Reza and Iqbal, Asim and Afzal, Asif and Razzaq, Luqman and Khidmatgar, Abdulqhadar and Goodarzi, Marjan (2021) Two-phase frictional pressure drop with pure refrigerants in vertical mini/micro-channels. Case Studies in Thermal Engineering, 23. ISSN 2214-157X, DOI

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Environmental concerns have urged a search for eco-friendly refrigerants in the refrigeration industry to overcome ozone depletion and global warming problems. Therefore, current research emphasizes frictional pressure drop during flow boiling of environment-friendly refrigerants (GWP<150), isobutane, HFC-152a, HFO-1234yf were tested against commonly reported HFC-134a. The data presented here was collected under heat flux-controlled conditions; the test piece was a round tube (1.60 mm diameter). The data collection was performed at 27 and 32 degrees C with mass velocities in 50-500 kg/m(2)s range. Effects of critical controlling parameters, like heat flux, mass velocity, exit vapor quality, operating pressure and medium, were studied in detail. It was observed that pressure drop increases along with mass velocity increment in the test piece and increases with exit vapor quality increment. The same was noticed to decrease with saturation temperature increment. Parametric effects and prediction of assessment methods are reported.

Item Type: Article
Funders: Deanship of Scientific Research at King Khalid University[R.G.P 2/105/41]
Uncontrolled Keywords: Natural refrigerants;Pressure drop;Vapor quality;Heat flux; Correlation
Subjects: T Technology > TJ Mechanical engineering and machinery
Depositing User: Ms Zaharah Ramly
Date Deposited: 14 Sep 2022 00:57
Last Modified: 14 Sep 2022 00:57

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