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ISSN Online: 2377-424X

ISBN Print: 978-1-56700-421-2

International Heat Transfer Conference 15
August, 10-15, 2014, Kyoto, Japan

An Entransy Dissipation-based Method for Optimal Control of Variable Water Volume Heat Exchanger Networks

Get access (open in a dialog) DOI: 10.1615/IHTC15.tmg.009311
pages 8239-8253

Resumo

Varying water volume (VWV) with variable speed pump (VSP) is an effective way for performance improvement of chilled/cooling water subsystems, which in turn reduce the energy consumption. However, the operating parameters of VWV systems are usually designed empirically and the optimization still lacks a theoretically and general optimization method, which offers a huge potential for energy conservation. Based on the newly developed entransy theory, this paper tackle all the heat transfer processes in central chilled water systems with VSPs to propose a general method, which connects the geometrical structures of each heat exchanger and the operating parameters of VSPs directly to the demands of users and the supply of refrigerating unit, for optimizing the operational parameters of such multi-parameter coupling systems and finally improve their efficiency.