Journal ArticleDOI
Heat Transfer and Pressure Drop in Tape-Generated Swirl Flow of Single-Phase Water
R. F. Lopina,A. E. Bergles +1 more
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This article is published in Journal of Heat Transfer-transactions of The Asme.The article was published on 1969-08-01. It has received 170 citations till now. The article focuses on the topics: Spinning drop method & Flow coefficient.read more
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Journal ArticleDOI
Review of passive heat transfer augmentation techniques
TL;DR: In this paper, a review on progress with passive heat transfer augmentation is presented, where inserts are used in the flow passage to augment the heat transfer rate, where the insert manufacturing process is simple and these techniques can be easily employed in an existing heat exchanger.
Journal ArticleDOI
Turbulent heat transfer and friction factor of Al2O3 Nanofluid in circular tube with twisted tape inserts
TL;DR: In this paper, the thermophysical properties of Al2O3 nanofluid have been determined through experiments at different volume concentrations and temperatures and validated through experiments in the Reynolds number range of 10,000-22,000 with tapes of different twist ratios.
Journal ArticleDOI
Friction and heat transfer characteristics of laminar swirl flow through a circular tube fitted with regularly spaced twisted-tape elements
TL;DR: In this article, the effect of higher-than-zero phase angle between consecutive tape elements has been studied, and the results showed that tape width and rod diameter were both varied.
Journal ArticleDOI
Investigation of twisted tape inserted solar water heaters—heat transfer, friction factor and thermal performance results
A Kumar,B.N. Prasad +1 more
TL;DR: In this paper, the effect of twisted-tape geometry, flow Reynolds number and intensity of solar radiation on the thermal performance of the solar water heater has been presented, and the results on heat transfer and friction data have been found to compare well with available results.
Journal ArticleDOI
A review of forced convection heat transfer enhancement and hydrodynamic characteristics of a nanofluid
TL;DR: A review of the heat transfer applications of nanofluids to develop directions for future work is presented in this article, where most of the results are in agreement with the results of experimental work.
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