The objective of the present work is to study influence copper nanoparticle concentration on heat transfer performance a mixed base fluid. In study, nanoparticles in ethylene glycol (eg) + propylene (pg) water (W) fluid was analyzed chevron- type plate exchanger. sol-gel method used prepare (100 nm), dispersed two different fluids volume fractions 5%EG 5%PG 90%W and 15%EG 80%W. Experiments were...

A genetic algorithm based optimisation technique has been developed for crossflow plate-fin heat exchangers using offset strip fins. The algorithm takes care of large number of continuous as well as discrete variables in the presence of given constraints. The optimisation program aims at minimising the number of entropy generation units for a specified heat duty under given space restrictions. ...

The paper investigates the heat transfer characteristics of exchanger under two different configurations namely taper helical tube and spiral type exchanger. working fluid is water which flows in tubes kept horizontally mass flow rate ranges from 0.04 kg/s to 0.16 kg/s. effect configuration parameters Reynolds number on coefficient Nusselt were studied. Regression equations have been developed ...

In this study, a reputable Kalina cycle system, KCS 11, is simulated and analysed. Within this efficient cycle, there are three heat exchangers: the first heat exchanger is designated for heat absorption from the heat source, the second heat exchanger is designed for heat release to the cold source, and the third heat exchanger is designed for energy recovery. In order to achieve precise si...

While the basic principles of thermodynamics have remained same, necessity for heat exchangers to good effectiveness in a small volume is constantly growing. Heat type Matrix Exchanger (MHE), which can meet these requirements, does not an optimal design variant its use. These been approached 60 years, by many researchers, currently offering only overview process. The mechanism transfer matrix e...

In the presented research, heat transfer of a mobile electrolyte alkaline fuel cell (AFC) (which the electrolyte has cooling role of system) has been considered. Proper control volumes of system with specific qualification have been chosen. Consequently, heat and mass transfer in control volumes have been assessed. Considerations on them and contributed models lead to approve a double tube heat...