Design of a New Porous Medium Heat Exchanger for an Aircraft Refrigeration System
Journal Title: The International Journal of Technological Exploration and Learning - Year 2014, Vol 3, Issue 4
Abstract
The design of a porous medium heat exchanger is done. The conventional heat exchanger used in the bootstrap air refrigeration system of a Boeing aircraft is redesigned using CFD analysis. A porous tube of 72.8mm diameter and 260mm length is validated and then it is considered for the new design. The number of tubes required for the specified temperature drop is calculated. Inline arrangement is assumed and the dimensions of the new heat exchanger then calculated. The new design is then analyzed for different porosities. The variation in pressure drop, number of tubes required and weight of the equipment with porosity is studied. It was observed that from 0.4 to 0.6 porosity, the new design will give the best result.
Authors and Affiliations
Arun S Lal| M.Tech student in Thermal Science, Marian Engineering College, Kazhakuttam, Kerala, India, Ajith C Menon| Assistant Professor in Mechanical department, Marian Engineering College, Kazhakuttam, Kerala, India
Keywords
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