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Parameters Affecting Critical Heat Flux Of Nanofluids: Heater Size, Pressure Orientation And Anti-freeze Addition

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Parameters Affecting Critical Heat Flux Of Nanofluids: Heater Size, Pressure Orientation And Anti-freeze Addition

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Title: Parameters Affecting Critical Heat Flux Of Nanofluids: Heater Size, Pressure Orientation And Anti-freeze Addition
Author: Kashinath, Madhav Rao
Abstract: This research aims at investigating the effect, heater size, pressure, heater orientation and effect of anti-freeze addition on critical heat flux of nanofluids which have shown large potentials as coolants for high power generating uses. Nanofluids have shown about ~180 - 200% enhancement in the critical heat flux values. The effect of heater size employing three different sized heaters yielded about ~180% enhancement over pure water. The effect of pressure on critical heat flux investigated by testing nanofluids at three pressures showed ~240% increase in critical heat flux. Surface orientation effect on critical heat flux carried out for a 2 × 2 cm heater at five orientations revealed about ~120% enhancement at 150°. Two commercially used antifreezes, ethylene glycol and propylene glycol were used to study the effect of anti-freeze addition to nanofluids. Alumina -water nanofluid of 0.025 g/L concentration mixed with the antifreezes at five compositions by volume showed a maximum enhancement of about ~120% for ethylene glycol and ~70% for propylene glycol.
URI: http://hdl.handle.net/10106/346
Date: 2007-08-23
External Link: https://www.uta.edu/ra/real/editprofile.php?onlyview=1&pid=262

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