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A study on latent heat storage exchangers with the high‐temperature phase‐change material
Author(s) -
He Qiao,
Zhang Wennan
Publication year - 2001
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.683
Subject(s) - shell and tube heat exchanger , heat exchanger , phase change material , plate fin heat exchanger , ntu method , moving bed heat exchanger , concentric tube heat exchanger , latent heat , thermodynamics , heat recovery ventilation , nuclear engineering , regenerative heat exchanger , plate heat exchanger , mechanics , process engineering , mechanical engineering , engineering , phase change , physics
This paper presents a theoretical analysis and an experimental test on a shell‐and‐tube latent heat storage exchanger. The heat exchanger is used to recover high‐temperature waste heat from industrial furnaces and off‐peak electricity. It can also be integrated into a renewable energy system as an energy storage component. A mathematical model describing the unsteady freezing problem coupled with forced convection is solved numerically to predict the performance of the heat exchanger. It provides the basis for an optimum design of the heat exchanger. The experimental study on the heat exchanger is carried out under various operating conditions. Effects of various parameters, such as the inlet temperature, the mass flow rate, the thickness of the phase‐change material and the length of the pipes, on the heat transfer performance of the unit are discussed combined with theoretical prediction. The criterion for analyzing and evaluating the performance of heat exchanger is also proposed. Copyright © 2001 John Wiley & Sons, Ltd.