Design, Fabrication and Performance Testing of Air to Air Heat Exchanger for Telecom Panels

Abstract

In today’s competitive world, the customer expects better products than the existing one with qualities like reliable with long life, low power consumption, maintenance free and efficient performance. The telecom panel that encloses electric components need to be protected from dust, ingredients and cooled by limiting the temperature rise near to ambient temperature. The design, development, testing and analysis of flat plate, single-phase and single pass, air as the working fluid heat exchanger is put forth within this thesis. To explore the use of plate heat exchanger was the aim of this study, for boosting performance of flat plate heat exchanger for lower heat flux and coupled wall application which has operating system in counter flow configuration. The design of the heat exchanger is enclosed in the thesis, followed by the testing, numerical simulations and analysis results. The balancing of experimental and empirical tests reveals capability of the heat exchanger for delivering an cooling capacity of 200 W/K for overall heat transfer coefficient close to 14.99 W/m2K at flow rates around 5-6 m/s (corresponding to air flow domains Reynolds’s number of 5357) and around 100-200Pa pressure drop. The verification of heat load around 1400W is obtained by experimentation. The results obtained by established contrary flow heat exchanger and numerical analysis by LMTD method are compared to verify its effective working. Further, numerical simulation results for a single flow channel of the similar geometry are described in this paper showing reasonable agreement of the results. The present work conveys the successful use of heat exchanger plate type for boosting performance in industrial applications of electric panel sectors