Two phase heat transfer of ammonia in a mini/micro channel
2010 (English)In: Proceedings of the 8th International Conference on Nanochannels, Microchannels and Minichannels, 2010, ASME Press, 2010, 1639-1647 p.Conference paper (Refereed)
Experiments have been performed to investigate heat transfer in a circular vertical mini channel made of stainless steel (AISI 316) with internal diameter of 1.70 mm and a uniformly heated length of 245 mm using ammonia as working fluid. The experiments are conducted for a heat flux range of 15 to 350 kW/m(2) and mass flux range of 100 to 500 kg/m(2)s. The effects of heat flux, mass flux and vapour quality on the heat transfer coefficient are explored in detail. The experimental results show that the heat transfer coefficient increases with imposed wall heat flux while mass flux and vapour quality have no considerable effect. Experimental results are compared to predictive methods available in the literature for boiling heat transfer. The correlations of Cooper et al.  and Shah  are in good agreement with our experimental data.
Place, publisher, year, edition, pages
ASME Press, 2010. 1639-1647 p.
Heat Transfer, Two phase, Mini channel
IdentifiersURN: urn:nbn:se:kth:diva-34231ISI: 000290556300216ScopusID: 2-s2.0-84856009888ISBN: 978-0-7918-5450-1OAI: oai:DiVA.org:kth-34231DiVA: diva2:422883
ASME 2010 8th International Conference on Nanochannels, Microchannels, and Minichannels, ICNMM2010 Collocated with 3rd Joint US-European Fluids Engineering Summer Meeting; Montreal, QC; Canada; 1 August 2010 through 5 August 2010
QC 201106142011-06-142011-05-302014-09-03Bibliographically approved