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Measuring the Average Volumetric Heat Transfer Coefficient of a Liquid-Liquid-Vapour Direct Contact Heat Exchanger

Baqir, AS, Mahood, HB, Campbell, AN and Griffiths, AJ (2016) Measuring the Average Volumetric Heat Transfer Coefficient of a Liquid-Liquid-Vapour Direct Contact Heat Exchanger Applied Thermal Engineering, 103. pp. 47-55.

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Abstract

The average volumetric heat transfer coefficient in a spray column liquid-liquid-vapour direct contact evaporator has been experimentally investigated. The experiments were carried out utilising a cylindrical Perspex tube of diameter 10 cm and height and 150 cm. Saturated liquid n-pentane and warm water at 45oC were used as the dispersed and continuous phases, respectively. Three different dispersed flow rates (10,15 and 20 L/h) and four different continuous phase flow rates (10, 20, 30 and 40 L⁄h) were used in the study. The effect of different parameters, such as the initial drop size, continuous and dispersed phase flow rates and sparger configuration, on the average volumetric heat transfer coefficient in the evaporator was studied. The results showed that the average volumetric heat transfer coefficient was reduced as the initial drop size increased. Also, both the continuous phase and the dispersed phase flow rates have a significant positive impact on the average volumetric heat transfer coefficient.

Item Type: Article
Subjects : subj_Chemical_and_Process_Engineering
Divisions : Faculty of Engineering and Physical Sciences > Chemical and Process Engineering
Authors :
AuthorsEmailORCID
Baqir, ASUNSPECIFIEDUNSPECIFIED
Mahood, HBUNSPECIFIEDUNSPECIFIED
Campbell, ANUNSPECIFIEDUNSPECIFIED
Griffiths, AJUNSPECIFIEDUNSPECIFIED
Date : 25 June 2016
Identification Number : 10.1016/j.applthermaleng.2016.04.067
Copyright Disclaimer : © 2016. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
Related URLs :
Depositing User : Symplectic Elements
Date Deposited : 20 Apr 2016 08:44
Last Modified : 18 May 2016 17:46
URI: http://epubs.surrey.ac.uk/id/eprint/810472

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