Effect of ambient heat-in-leak and longitudinal wall conduction on a three-fluid parallel flow cruogenic heat exchanger

Abstract

Papers presented to the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 20-23 July 2015.A three-fluid parallel-flow cryogenic heat exchanger, involving two thermal interactions, is investigated for the effect of ambient heat-in-leak and longitudinal wall conduction, using FEM for four different flow arrangements. The three fluids are referred to as hot, cold and the intermediate fluids. Seven non-dimensional parameters inclusive of those to account for ambient heat-in-leak and longitudinal wall conduction are defined to present the results.