Flooded evaporators using smooth and enhanced tubes

Da Silva Lima, Ricardo J. (Laboratoire de transfert de chaleur et de masse, EPFL, Lausanne, Switzerland) ; van Rooyen, Eugene (Laboratoire de transfert de chaleur et de masse, EPFL, Lausanne, Switzerland) ; Thome, John M. (Laboratoire de transfert de chaleur et de masse, EPFL, Lausanne, Switzerland)

In this chapter flow patterns, heat transfer and pressure drops characterizing two-phase flows in flooded evaporators (bundle boiling) are presented and discussed. First, the particularities of bundle boiling with regards to pool boiling are introduced. Flow patterns and respective measurement techniques and experimental results are presented. Bundle boiling heat transfer and different bundle effects are then discussed before introducing plain and enhanced tubes bundle boiling heat transfer correlations. Dryout mechanisms are then discussed, followed by pressure drops in bundle boiling. The objective of this chapter is to capture the most important phenomena related with heat transfer and pressure drops in flooded evaporators. In particular, the models presented here will allow one to correctly size and optimize the design of this type of two-phase heat exchanger.


Note: DA SILVA LIMA, Ricardo J. est chercheur à la HES-SO, HEPIA, depuis 2013.


Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEPIA - Genève
Institute:
inPACT - Institut du Paysage, d'Architecture, de la Construction et du Territoire
Date:
2015-06
Published in:
Encyclopedia of Two-Phase Heat Transfer and Flow II
Numeration (vol. no.):
2020, vol. 2, pp. 101-144
DOI:
ISBN:
978-981-4623-31-5
Appears in Collection:



 Record created 2020-08-11, last modified 2020-10-27


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