Advertisement

Heat and Mass Transfer

, Volume 39, Issue 4, pp 327–336 | Cite as

A risk based performance evaluation of plate-and-frame heat exchangers

  • Jameel Rehman Khan
  • Syed M. Zubair
Original

Abstract.

Plate-and-frame heat exchangers (PHEs) operating in process industries are fouled to a greater or lesser extent depending on surface temperature, surface condition, material of construction, fluid velocity, flow geometry and fluid composition. This fouling phenomenon is time-dependent and will result in a decrease in the overall heat transfer coefficient and increase in the pressure drop of the PHE. Once the overall heat transfer coefficient decreases to a minimum acceptable level, cleaning of the equipment becomes necessary to restore the performance. In this paper, we present a simple probabilistic approach to characterize various fouling models that are commonly encountered in many industries. These random fouling growth models are then used to investigate the impact on risk based thermal effectiveness, overall heat transfer coefficient and the hot- and cold-fluid outlet temperatures of a PHE. All the results are presented in a generalized form in order to demonstrate the generality of the risk-based procedure discussed in this paper.

Keywords

Heat Transfer Surface Temperature Transfer Coefficient Pressure Drop Performance Evaluation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Copyright information

© Springer-Verlag 2003

Authors and Affiliations

  • Jameel Rehman Khan
    • 1
  • Syed M. Zubair
    • 1
  1. 1.King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia

Personalised recommendations