Performance Enhancement of Double Tube Heat Exchanger Using Coiled Fins

Authors

A. Khalil, S. A. El-Agouz, A. E. Zohir, A. M. Farid

Abstract

The effect of inserting coil wire in the shell side of a doublepipe heat exchanger on the heat transfer and pressure drop areexperimentally investigated. The experiments are performedusing water as the hot and cold working fluid under the turbulentflow condition. Nine coils with different wire diameter (dw = 2, 4and 6 mm) and different coil pitch ratio (P/ dw = 2.5, 5 and 7.5)are used in the study. Results presented an increasing up to 1.59in the heat transfer coefficient while the pressure drop increased10 times compared with the smooth pipe. Results also showedthat the increase in the heat gain is very big than the loss in thepumping power.

Recommended Citation

Khalil, S. A. El-Agouz, A. E. Zohir, A. M. Farid, A. (2019) "Performance Enhancement of Double Tube Heat Exchanger Using Coiled Fins," Journal of Engineering Research: Vol. 3: Iss. 1, Article 7.
Available at: https://digitalcommons.aaru.edu.jo/erjeng/vol3/iss1/7