Analysis of Effect of Heat Pipe Parameters in Minimising the Entropy Generation Rate

Abstract

Heat transfer and fluid flow in the heat pipe system result in thermodynamic irreversibility generating entropy. The minimum entropy generation principle can be used for optimum design of flat heat pipe. The objective of the present work is to minimise the total entropy generation rate as the objective function with different parameters of the flat heat pipe subjected to some constraints. These constraints constitute the limitations on the heat transport capacity of the heat pipe. This physical nonlinear programming problem with nonlinear constraints is solved using LINGO 15.0 software, which enables finding optimum values for the independent design variables for which entropy generation is minimum. The effect of heat load, length, and sink temperature on design variables and corresponding entropy generation is studied. The second law analysis using minimum entropy generation principle is found to be effective in designing performance enhanced heat pipe.

Experimental Analysis of Single and Three-Stage Heat Pipe With Three Fluids for Cooling of Electronic Devices

“…Increasing or reducing the temperature of any electrical equipment is dependent on the amount of heat generated as a result of energy storage and consumption [2]. As a result, an appropriate cooling mechanism is essential for regulating the system temperature and ensuring that the performance requirements are met [3]. Additionally, variable heat load heat pipes are necessary because the heat load varies depending on whether the energy is consumed or stored.…”