Header menu link for other important links
Dynamics of plate heat exchangers subject to flow variations
Anil Kumar Dwivedi,
Published in
Volume: 50
Issue: 13-14
Pages: 2733 - 2743
A predictive model has been presented to suggest the transient response of plate heat exchangers, subjected to a step flow variation. The work also brings out the effect of the port to channel maldistribution on the performance of plate heat exchangers under the condition of flow variation. The results indicate that flow maldistribution affects the performance of the plate heat exchangers in the transient regime. A wide range of the parametric study has been presented which brings out the effects of NTU and heat capacity rate ratio on the response of the plate heat exchanger, subjected flow perturbation. To verify the presented theoretical model, appropriate experiments have been carried out. Experiments include the responses of the outlet temperatures subjected to inlet temperature transient in the circuit followed by a sudden change in flow rate in one of the fluids. Simulated performance has been compared to the performance measured in the experiments. Comparisons indicate that theoretical model developed for flow transient is capable of predicting the transient performance of the plate heat exchangers satisfactorily, under the given conditions of changed flow rates. © 2007 Elsevier Ltd. All rights reserved.
About the journal
JournalInternational Journal of Heat and Mass Transfer
Open AccessNo
Concepts (9)
  •  related image
    Channel flow
  •  related image
    Computer simulation
  •  related image
    Flow patterns
  •  related image
    Mathematical models
  •  related image
    Specific heat
  •  related image
    Flow maldistribution
  •  related image
  •  related image
  •  related image
    Heat exchangers