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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-474-8

ISBN Online: 978-1-56700-473-1

International Heat Transfer Conference 16
August, 10-15, 2018, Beijing, China

SIMULTANEOUS OPTIMIZATION OF HEAT TRANSFER PROCESSES AND HEAT EXCHANGER NETWORKS BASED ON THE ENTRANSY-BASED POWER FLOW METHOD

Get access (open in a dialog) DOI: 10.1615/IHTC16.her.023694
pages 4843-4850

Résumé

Optimization to improve the global performance of heat exchanger network (HXN) benefits energy conservation. This study establishes a double-level nested structure, which can optimize HXN at both system-scale and component-scale collaboratively. Firstly combining HXN optimization based on the power flow method with heat exchanger simulation based on CFD technology obtains the corrected total power consumption of HXN and the optimal running condition under current design of heat exchangers. Then using the downhill simplex search algorithm optimizes the geometric parameters of the evaporator in the HXN. With the help of MDO software iSIGHT, the corresponding working flow is built and obtains the optimal operating condition of HXN including the mass flow rate of working fluids, running frequency of pumps, and the optimal detailed design of the tube-shell evaporator, including the quantity and diameter of tubes.