Journal ArticleDOI
Experiments on a bubble absorber
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TLDR
In this paper, experiments were carried out on a bubble absorber operating as part of a vapour absorption refrigeration system working with HCFC22-DMF to obtain heat and mass transfer and pressure drop data.About:
This article is published in International Communications in Heat and Mass Transfer.The article was published on 1999-10-01. It has received 27 citations till now. The article focuses on the topics: Pressure drop & Sherwood number.read more
Citations
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Journal ArticleDOI
Experimental studies on heat and mass transfer performance of a coiled tube absorber for R134a-DMAC based absorption cooling system
TL;DR: In this paper, the authors present the results of experimental studies on the heat and mass transfer characteristics of a coiled tube falling film absorber, using 1,1, 1,2-Tetrafluroethane(R-134a) and N-N Dimethyl Acetamide (DMAC) as working fluids.
Journal ArticleDOI
Experimental studies on heat and mass transfer characteristics for R134a–DMF bubble absorber
M. Suresh,Annamalai Mani +1 more
TL;DR: In this paper, experimental investigations have been carried out to study heat and mass transfer characteristics of Tetrafluoro ethane (R134a) in Dimethyl formamide (DMF) in a glass absorber.
Journal ArticleDOI
Visual experimental research on the effect of nozzle orifice structure on R124–DMAC absorption process in a vertical bubble tube
TL;DR: In this paper, a visual experimental platform for R124-DMAC bubble absorption in a vertical tube absorber was designed and built for this research, and the bubble behaviors, flow pattern characteristics and distributions were observed and bubble absorption heights (BAHs) were measured when the two kinds of different structure nozzles (single orifice or multi-orifice nozzle) were applied in the absorber.
Journal ArticleDOI
Heat and mass transfer characteristics of R124-DMAC bubble absorption in a vertical tube absorber
TL;DR: In this paper, a visual vertical tubular bubble absorber was used to obtain key parameters that affect on the heat and mass transfer performance of R124-DMAC bubble absorption, such as vapor and solution flow rates, solution inlet temperatures and mass fractions, and nozzle orifice diameters.
Journal ArticleDOI
Experimental studies on bubble characteristics for R134a–DMF bubble absorber
M. Suresh,Annamalai Mani +1 more
TL;DR: In this paper, the effect of gas flow rate and liquid concentration on bubble characteristics of Tetrafluoro ethane (R134a) in liquid R134a-Dimethyl Formamide (DMF) solution in a glass absorber was investigated.
References
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Journal ArticleDOI
Two-phase bubble flow
TL;DR: In this article, a theory is presented which shows that the velocity of the bubbles consists of a component equal to the superficial liquid velocity, a component equivalent to the gas velocity and a component due to buoyancy.
Journal ArticleDOI
Holdup and pressure drop with gas-liquid flow in a vertical pipe
G. A. Hughmark,B. S. Pressburg +1 more
TL;DR: In this paper, a statistical correlation for holdup was developed to include fluid physical properties, total mass velocity, and the air-liquid ratio entering the pipe, which showed an average percentage error of less than 15% between the observed and the calculated total pressure drop.
Book ChapterDOI
Properties of Cocurrent Gas-Liquid Flow
TL;DR: The problem of two-phase flow classification is complicated by the inevitable differences because of individual interpretations of visual observations and also by differences in terminology as mentioned in this paper, and a number of definite flow patterns are investigated.
Journal ArticleDOI
Heat and mass transfer in vertical tubular bubble absorbers for ammonia-water absorption refrigeration systems
TL;DR: In this article, a model is developed for calculation of simultaneous heat and mass transfer processes in vertical bubble absorbers as used for ammonia-water absorption refrigeration systems, and the mass transfer coefficients resulting from these experiments are correlated by a modified Sherwood relation.
Journal ArticleDOI
Analysis of a bubble absorber working with R22 and five organic absorbents
TL;DR: In this paper, a model of the absorption process in a vertical tubular bubble absorber working with R22-DMF, R 22-DMA, R22 -DMETEG and R 22 -NMP is developed using finite element method employing Galerkin's technique.