Wing-Shaped Heat Exchanger Tubes: A Comparative Study

ISBN-13: 9783844324693 / Angielski / Miękka / 2012 / 116 str.

Soorya Narayan S.;Ajuram K. Salim

Opis

Heat exchangers play a vital role in almost all fields of industry ranging from condensers and evaporators in refrigerating units to radiators of automobiles . The strive for obtaining better energy efficiency and cost savings has made the industry to constantly upgrade the technology associated with heat exchangers to improve their heat transfer efficency , reduce the size and also to lower production costs .This has resulted in research into various tube shapes used in heat exchagers including wing-shaped tubes that can improve the heat exchange efficiency .A study was carried out to compare the performance of heat exchangers with staggered banks of tubes with wing-shaped cross sections and cylindrical tubes under turbulent flow conditions. Detailed 2D- numerical simulations of fluid flow and heat transfer were performed for various pitch to diameter ratios using Computational Fluid Dynamics . When compared to the normal cylindrical tubes better heat exchange was observed in wing-shaped tubes which could be due to more attached flow happening in this case due to the wing-shape.

O autorze

The author has obtained the B.Tech Degree in Mechanical Engineering from the University of Kerala. He is also the recipient of the prestigious NTSE Scholarship instituted by the Government of India. He had done this research as a summer project at the world renowned Vikram Sarabhai Space Centre(VSSC) of the Indian Space Research Organisation(ISRO).