Affiliation:
1. Gdansk University of Technology, Gdansk , Poland
Abstract
Abstract
The paper presents the results of calculations performed using the authors′ model to predict the heat transfer coefficient during flow boiling for two refrigerants R134a and R1234yf. The experimental data from various past studies have been collected and the calculations have been conducted for the full range of quality variation and a wide range of mass velocity. The aim of the study was to test the sensitivity of the in-house flow boiling and flow condensation model. The importance of taking into account the surface tension as the parameter exhibiting its importance in case of the flow in minichannels, as well as the influence of the reduced pressure were analysed. The obtained numerical results show good consistency with those recorded in the experiments.
Subject
Mechanical Engineering,Ocean Engineering
Reference40 articles.
1. 1. United Nations Environment Program (UNEP) Montreal Protocol on Substances that Deplete the Ozone Layer, 1997.
2. 2. IPPC, Climate Change, Cambridge University Press, Cambridge, United Kingdom, 2001.
3. 3. Ghodbane M.: An investigation of R152a and hydrocarbon refrigerants in mobile air conditioning, Int. Proceedings of International Congress and Exposition, Detroit, Paper no. 1999-01-0874, Warrendale, PA.
4. 4. Lorentzen G.: Revival of carbon dioxide as refrigerant, Int. J. Refrigeration 17 (3), 1994, pp. 292-301.
5. 5. Zhao Y., Liang Y., Sun Y., Chen J.: Development of a mini-channel evaporator model using R1234yf as working fluid, 35, 2012, pp. 2166-2178.
Cited by
7 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献