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http://dx.doi.org/10.3795/KSME-C.2015.3.1.023

Design Optimization of Dual-Shell and Tube Heat Exchanger for Exhaust Waste Heat Recovery of Gas Heat Pump  

Lee, Jin Woo (AE Laboratory, HAE Research Center, LG Electronics)
Shin, Kwang Ho (AE Laboratory, HAE Research Center, LG Electronics)
Choi, Song (AE Laboratory, HAE Research Center, LG Electronics)
Chung, Baik Young (AE Laboratory, HAE Research Center, LG Electronics)
Kim, Byung Soon (AE Laboratory, HAE Research Center, LG Electronics)
Publication Information
Transactions of the KSME C: Technology and Education / v.3, no.1, 2015 , pp. 23-28 More about this Journal
Abstract
In this paper, we performed the design optimization dual-shell and tube heat exchanger on exhaust waste heat recovery for gas heat pump using CFD and RSM. CFD analysis is useful to design the complex structure such as double shell and tube heat exchanger. By computer simulation, engineers can assess the feasibility of the given design factors and change them to get a better design. But if one wishes to perform complex analysis on the simulation, such dual-shell and tube heat exchanger for GHP, the computational time can become overwhelming. CFD is powerful but it takes a lot of time for complex structure. Therefore, the CFD analysis is minimized by the optimization using the RSM method. As a result, the number of baffle and tube are optimized by 6 baffles and 25 tubes for heat transfer and flow friction. And then pressure drop and heat transfer is improved about 12.2%. We confirm the design optimization using CFD and RSM is useful on complex structure of heat exchanger.
Keywords
Computational Fluid Dynamics; Gas Heat Pump; Optimization; Response Surface Model; Shell and Tube Heat Exchanger;
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