Simulation of air flow about a directly air cooled heat exchanger

The flow of air about a very large directly air cooled heat exchanger is simulated numerically. Air is forced through the heat exchanger by fans and a strongly bouyant plume is formed. The numerical treatment uses a finite difference technique combined with special treatment of atmospheric boundarie...

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Bibliographic Details
Published in:Building and environment 1989, Vol.24 (1), p.23-32
Main Authors: Schreüder, Willem A., Prieur Du Plessis, J.
Format: Article
Language:English
Subjects:
heat exchangers
heat transfer
simulation
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Summary:The flow of air about a very large directly air cooled heat exchanger is simulated numerically. Air is forced through the heat exchanger by fans and a strongly bouyant plume is formed. The numerical treatment uses a finite difference technique combined with special treatment of atmospheric boundaries. It restricts the computational domain to manageable limits by allowing boundaries with moderate in and outflow to be specified in terms of gradient boundary conditions. The influence of adverse wind conditions on the heat transfer and plume behaviour is examined.
ISSN:0360-1323
1873-684X
DOI:10.1016/0360-1323(89)90013-9