SIMPLIFIED MODELS FOR DIRECT AND INDIRECT CONTRACT COOLING TOWERS AND EVAPORATIVE CONDENSERS

Jean Lebrun C; Aparecida Silva; Felipe Trebilcock; Eric Winandy

Article Details

SIMPLIFIED MODELS FOR DIRECT AND INDIRECT CONTRACT COOLING TOWERS AND EVAPORATIVE CONDENSERS

Authors:

Jean Lebrun C | Aparecida Silva | Felipe Trebilcock | Eric Winandy

Publisher:

Ecole Nationale supérieure Polytechnique

Journal:

Communication science et technologie Vol.2 Issue 1, pp.1-10

Document Type:

Article

Publication Date:

12/2003

Document Language:

English

Document ID (Org No.):

2001541767

pISSN:

2773-3483

Keywords:

Abstract:

 This paper presents a simplified method of analyzing the combined heat and mass transfer phenomena in direct and indirect contact cooling towers and evaporative condensers.The theoretical basis of the model is Merkel's theory.The cooling towers evaporative condensers and fluid coolers are considered as members of a classical heat exchangers family working in wet regime.Here the air side heat and mass transfer processes are governed by the same basic process.This paper shows that a "unified" theoretical treatment may be applied to all three evaporative exchangers.The key difference inthe theory for each type relates to these exchangers unique characteristic,the global heat transfer coefficient UA,or its correspondent thermal resistances of the process fluid .Specific correlations for the calculation of UA or the equivalent thermal resistances, considering the influence of the water and air flow rates entering the exchangers,are discussed.An example for each case is shown illustrating the validation of the models with catalogue data.

Article Details

SIMPLIFIED MODELS FOR DIRECT AND INDIRECT CONTRACT COOLING TOWERS AND EVAPORATIVE CONDENSERS

Authors: Jean Lebrun C | Aparecida Silva | Felipe Trebilcock | Eric Winandy

Publisher: Ecole Nationale supérieure Polytechnique

Journal: Communication science et technologie Vol.2 Issue 1, pp.1-10

Document Type: Article

Publication Date: 12/2003

Document Language: English

Document ID (Org No.): 2001541767

pISSN: 2773-3483

cooling

mass

UA

Issues

Authors:

Jean Lebrun C | Aparecida Silva | Felipe Trebilcock | Eric Winandy

Publisher:

Ecole Nationale supérieure Polytechnique

Journal:

Communication science et technologie Vol.2 Issue 1, pp.1-10

Document Type:

Article

Publication Date:

12/2003

Document Language:

English

Document ID (Org No.):

2001541767

pISSN:

2773-3483