Application of Multi-objective Optimization Packages in Design of an Evaporator Coil

A novel methodology has been used to design an evaporator coil of a refrigerant. The methodology used is through a complete Computer Aided Design /Computer Aided Engineering approach, by means of a Computational Fluid Dynamic/Finite Element Analysis model which is executed many times for the thermal-fluid exploration of several designs' configuration by an commercial optimizer. Hence the design is carried out automatically by parallel computations, with an optimization package taking the decisions rather than the design engineer. The engineer instead takes decision regarding the physical settings and initializing of the computational models to employ, the number and the extension of the geometrical parameters of the coil fins and the optimization tools to be employed. The final design of the coil geometry found to be better than the initial design.

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References:
[1] Ranganayakulu, Herres 2006 Heat transfer from horizontal tubes in pool
boiling: influence of three-dimensional heat conduction in the wall of
the evaporator tubeÔÇöa finite element analysis Springer Heat Mass
Transfer 42: 271-278
[2] Bart, Brozio, Herbsthofer 2000 Heat Transfer and Hydrodynamics in
Annular Chromatography: CFDSimulation and Experiments Springer J.
of Thermal Science Vol.9, No.2
[3] Kamali, Binesh 2008 The importance of rib shape effects on the local
heat transfer and flow friction characteristics of square ducts with ribbed
internal surfaces Science Direct International Communications in Heat
and Mass Transfer
[4] Jeong ,Haa, Kwon , 2006 Evaluation of the conduction shape factor with
a CFD code for a liquid-metal heat transfer
[5] Fard 2009 CFD modeling of heat transfer of CO2 at supercritical
pressures flowing vertically in porous tubes Sciencedirect International
Communications in Heat and Mass Transfer
[6] Arularasan & Velraj, 2008, modeling and simulation of a parallel plate
heat sink using computational fluid dynamics, springer, Int J Adv Manuf
Technol DOI 10.1007/s00170-008-1867-9
[7] Copiello, Fabbri 2009 Multi-objective genetic optimization of the heat
transfer from longitudinal wavy fins Science direct International Journal
of Heat and Mass Transfer 52
[8] Samad Lee 2008 Multi-objective optimization of a dimpled channel for
heat transfer augmentation Springer Heat Mass Transfer
[9] Moon 2009 Optimization of a stepped circular pin-fin array to enhance
heat transfer performance Springer Heat Mass Transfer