Affiliation:
1. Research Unit Environment, Catalysis and Process Analysis URECAP, The National School of Engineering of Gabes, Gabes, Tunisia
Abstract
The mathematical model will be able to predict the operated condition
(required tube diameters, heat input and submergence ratio?.). That will
result in a successful bubble pump design and hence a refrigeration unit. In
the present work a one-dimensional two-fluid model of boiling mixing
ammonia-water under constant heat flux is developed. The present model is
used to predict the outlet liquid and vapor velocities and pumping ratio for
different heat flux input to pump. The influence of operated conditions such
as: ammonia fraction in inlet solution and tube diameter on the functioning
of the bubble pump is presented and discussed. It was found that, the liquid
velocity and pumping ratio increase with increasing heat flux, and then it
decreases. Optimal heat flux depends namely on tube diameter variations.
Vapour velocity increases linearly with increasing heat flux under designed
conditions.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
19 articles.
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