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CONDENSATION HEAT TRANSFER ENHANCEMENT USING STEAM ETHANOL MIXTURES ON A FINNED TUBE

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dc.contributor.author H. Ali
dc.contributor.author F. Noor
dc.contributor.author M. S. Kamran
dc.contributor.author A. Hussain
dc.contributor.author S. Imranand F.Farukh
dc.date.accessioned 2023-03-14T05:43:25Z
dc.date.available 2023-03-14T05:43:25Z
dc.date.issued 2015-03-05
dc.identifier.citation Ali, H. (2015). Condensation Heat Transfer Enhancement Using Steam Ethanol Mixtures on a Finned Tube. Pakistan Journal of Science, 67(1). en_US
dc.identifier.issn 0300-9877
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19002
dc.description.abstract Heat-transfer experiment was conducted for condensation of steam-ethanol mixtures in vertical down flow over two horizontal, water-cooled, low-finned copper tubes at atmospheric pressure. Tube had a fin height of 1.6 mm, root diameter of 12.7, thickness of 0.3 mm and spacing between fins of 0.5 mm. Tests were conducted at atmospheric pressure. Effects of ethanol concentration on both retention angle and heat transfer were measured. The retention angle was strongly dependent on ethanol concentration, upstream vapour velocity, temperature of the condensate at the interface and consequently the surface tension. Mass fractions of ethanol used to conduct tests were 0.025, 0.05, 0.1, 0.5 and 1.0percent. Range of vapour velocity at approach to the condenser tube was 0.78 to 7.5 m/s. For each composition and vapour velocity, measurements were recorded for a range of vapour to surface temperature difference. As a result of Marangoni phenomenon obtained by using steam ethanol mixture,a maximum sustainable heat transfer enhancement up to 3 times as compared to that of pure steam was obtained. en_US
dc.language.iso en en_US
dc.publisher Lahore: Pakistan Association for the Advancement of Science en_US
dc.subject Finned tube en_US
dc.subject Steam ethanol mixture condensation en_US
dc.subject Heat transfer enhancement en_US
dc.subject Marangoni condensation en_US
dc.title CONDENSATION HEAT TRANSFER ENHANCEMENT USING STEAM ETHANOL MIXTURES ON A FINNED TUBE en_US
dc.type Article en_US


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