%0 Journal Article %1 weizhe2011numerical %A Han, Weizhe %A Saleh, Khaled %A Aute, Vikrant %A Ding, Guoliang %A Hwang, Yunho %A Radermacher, Reinhard %B 2 %C Taylor & Francis %D 2011 %J HVAC&R Research %K 2011 flow numerical optimization plate-heat-exchanger simulation turbulent %P 186 - 197 %R 10.1080/10789669.2011.558167 %T Numerical simulation and optimization of single-phase turbulent flow in chevron-type plate heat exchanger with sinusoidal corrugations %U http://dx.doi.org/10.1080/10789669.2011.558167 %V 17 %X The thermal-hydrodynamic characteristics of a single-phase turbulent flow in chevron-type plate heat exchangers with sinusoidal-shaped corrugations have been numerically investigated in this article. The computational domain contains a corrugation channel, and the simulations adopted the shear-stress transport κ-ω model as the turbulence model. The numerical simulation results in terms of Nusselt number and friction factor were compared with limited experimental data and existing correlations in order to verify the accuracy of the numerical model. The validation was performed using single-phase water as the working fluid. A bi-objective optimization was carried out using an approximation-assisted optimization technique, which provided considerable computational savings to ensure the feasibility of optimization. The corrugation depth, corrugation angle, corrugation pitch, and fluid inlet velocity were identified as design variables, and 200 samples were selected using the maximum entropy design method to build the metamodel for obtaining the heat transfer coefficient as well as the pressure drop per unit length. A multi-objective genetic algorithm was utilized as the optimizer. The optimization results were presented in the form of Pareto solution set, which clearly showed its dominance over the entire design space and the tradeoff between the two optimization objectives: maximizing heat transfer coefficient and minimizing drop per unit length. Also, the Pareto optimal designs were validated against the values directly obtained from numerical simulations. The approximation-assisted optimization shows that all optimal designs have largest enlargement factor values inside the design space, and the optimal corrugation angle increases with the increase of maximum heat transfer coefficient.

@article{weizhe2011numerical, abstract = {The thermal-hydrodynamic characteristics of a single-phase turbulent flow in chevron-type plate heat exchangers with sinusoidal-shaped corrugations have been numerically investigated in this article. The computational domain contains a corrugation channel, and the simulations adopted the shear-stress transport κ-ω model as the turbulence model. The numerical simulation results in terms of Nusselt number and friction factor were compared with limited experimental data and existing correlations in order to verify the accuracy of the numerical model. The validation was performed using single-phase water as the working fluid. A bi-objective optimization was carried out using an approximation-assisted optimization technique, which provided considerable computational savings to ensure the feasibility of optimization. The corrugation depth, corrugation angle, corrugation pitch, and fluid inlet velocity were identified as design variables, and 200 samples were selected using the maximum entropy design method to build the metamodel for obtaining the heat transfer coefficient as well as the pressure drop per unit length. A multi-objective genetic algorithm was utilized as the optimizer. The optimization results were presented in the form of Pareto solution set, which clearly showed its dominance over the entire design space and the tradeoff between the two optimization objectives: maximizing heat transfer coefficient and minimizing drop per unit length. Also, the Pareto optimal designs were validated against the values directly obtained from numerical simulations. The approximation-assisted optimization shows that all optimal designs have largest enlargement factor values inside the design space, and the optimal corrugation angle increases with the increase of maximum heat transfer coefficient. }, added-at = {2011-04-19T09:48:49.000+0200}, address = {Taylor & Francis}, author = {Han, Weizhe and Saleh, Khaled and Aute, Vikrant and Ding, Guoliang and Hwang, Yunho and Radermacher, Reinhard}, biburl = {https://www.bibsonomy.org/bibtex/2177de4ed47ef2c608357a97bcdfc124f/thorade}, description = {Numerical simulation and optimization of single-phase turbulent flow in chevron-type plate heat exchanger with sinusoidal corrugations - HVAC&R Research}, doi = {10.1080/10789669.2011.558167}, interhash = {2391331b2474388a00ba6b698aa7ec85}, intrahash = {177de4ed47ef2c608357a97bcdfc124f}, issn = {1078-9669}, journal = {HVAC\&R Research}, keywords = {2011 flow numerical optimization plate-heat-exchanger simulation turbulent}, pages = {186 - 197}, series = 2, timestamp = {2011-07-20T17:17:06.000+0200}, title = {Numerical simulation and optimization of single-phase turbulent flow in chevron-type plate heat exchanger with sinusoidal corrugations}, url = {http://dx.doi.org/10.1080/10789669.2011.558167}, volume = 17, year = 2011 }