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2 Archives of Thermodynamics

2 2020

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Innovative method for heat transfer enhancement through shell and coil side fluid flow in shell and helical coil heat exchanger

100%

Kumar R. , Chandra P. , Prabhansu , Kumar R. , Chandra P. , Prabhansu

nr 2

Innovative method for heat transfer enhancement through shell and coil side fluid flow in shell and helical coil heat exchanger

94%

Kumar R. , Chandra P. , Prabhansu

tom Vol. 41, no 2

239--256

The effect of shell side and coil side volume flow rate on overall heat transfer coefficient, effectiveness, pressure drop and exergy loss of shell and helical coil heat exchanger were studied experimentally under steady state conditions. The working fluid, i.e., water was allowed to flow at three different flow rates of 1, 2, and 3 l/min on shell side (cold water) and at 1, 1.5, 2, 2.5, and 3 l/min on coil side (hot water) for each shell side flow rate at the temperatures of 298±0.4 K and 323±0.4 K, respectively. The results found that the overall heat transfer coefficient increased with increasing both shell side and coil side volume flow rates. The inner Nusselt number significantly increased with the coil side Dean number.