A HEAT EXCHANGER COMPUTATIONAL PROCEDURE FOR TEMPERATURE-DEPENDENT FOULING
Titel:
A HEAT EXCHANGER COMPUTATIONAL PROCEDURE FOR TEMPERATURE-DEPENDENT FOULING
Auteur:
Chiappetta, L. M. Szetela, E. J.
Verschenen in:
Chemical engineering communications
Paginering:
Jaargang 16 (1982) nr. 1-6 pagina's 189-204
Jaar:
1982-08-01
Inhoud:
A novel heat exchanger computational procedure is described which provides a means of rapidly calculating the distributions of fluid and wall temperatures, deposit formation, and pressure loss at various points in a heat exchanger. The procedure is unique in that it is capable of treating wide variations in heat exchanger geometry without recourse to restrictive assumptions concerning heat exchanger type (e.g., co-flow, counterflow, cross flow devices, etc.). The analysis has been used extensively to predict the performance of cross-counterflow heat exchangers in which one fluid behaves as a perfect gas (e.g., air) while the other fluid is assumed to be a distillate fuel. The model has been extended to include the effects on heat exchanger performance of time varying inflow conditions. Heat exchanger performance degradation due to deposit formation with time can be simulated, making this procedure useful in predicting the effects of temperature-dependent fouling.
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