Performance study of a falling-film absorber with a film-inverting configuration

This paper describes the development of a novel film-inverting design concept for falling-film absorbers. The solid surface of the absorber is segmented so that both surfaces of the falling-film are alternatively cooled in a periodic manner. A conventional tubular absorber is modified by introducing...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of refrigeration Vol. 26; no. 8; pp. 909 - 917
Main Authors Raisul Islam, Md, Wijeysundera, N.E, Ho, J.C
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.12.2003
Elsevier Science
Subjects
Absorber
Absorbeur
Absorption system
Applied sciences
Conception
Design
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Falling-film
Film tombant
Refrigerating engineering
Refrigerating engineering. Cryogenics. Food conservation
Simulation
Système à absorption
Techniques. Materials
Design
Falling-film
Simulation
Film tombant
Absorption system
Absorber
Système à absorption
Conception
Absorbeur
Performance
Absorption refrigeration
Falling film
Refrigeration
Online AccessGet full text

Cover

More Information
Summary:This paper describes the development of a novel film-inverting design concept for falling-film absorbers. The solid surface of the absorber is segmented so that both surfaces of the falling-film are alternatively cooled in a periodic manner. A conventional tubular absorber is modified by introducing film-guiding fins between tubes to produce a film-inverting arrangement. A maximum increase in vapour absorption rate of about 100% is obtained with the film-inverting design compared to the tubular absorber. The numerical simulation indicates that the vapour absorption rate can be increased by using a large number of film-inverting segments in the absorber.
ISSN:0140-7007
1879-2081
DOI:10.1016/S0140-7007(03)00078-1