Heat and mass transfer in vertical tubular bubble absorbers for ammonia-water absorption refrigeration systemsTransfert de chaleur et de masse dans les absorbeurs tubulaires verticaux de bulles pour les systèmes frigorifiques à absorption ammoniac-eau
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Cited by (39)
Numerical simulation and experiment for R124-DMAC bubble absorption process in a vertical tubular absorber
2019, International Journal of Thermal SciencesCitation Excerpt :Heat and mass transfer performances of the bubble absorption process had been researched by some scholars. The researches were mainly focused on two kinds of structures, plate-type absorber [8–12] and tubular absorber [13–17], with NH3/H2O, NH3/LiNO3 or NH3/(LiNO3+H2O) as working fluids. Research results showed that the key parameters affecting heat and mass transfer performance of bubble absorption process were refrigerant vapor and absorption solution flow rates, absorption solution temperature and mass fraction, absorption pressure, cooling-water temperature and flow rate.
Vapour absorption enhancement using passive techniques for absorption cooling/heating technologies: A review
2018, Applied EnergyCitation Excerpt :Interest on the investigation of the bubble absorption process for absorption systems has also been increasing in the last years. Researchers have focussed on the description and explanation of the phenomena that take place in the absorption and the way to improve it in an effort to contribute to the technological development of absorption systems for refrigeration or heating [84–101]. Documents reported in the open literature include sensitivity studies of the heat and mass transfer processes in bubble absorbers with different mixtures by analysing the effect of the absorption heat removal [85], internal tube diameter [85], solution flow [85–87,94,96,98,100,101], inlet solution temperature [84,86,88,96–98,100,101], solution concentration [85–87,92–98,100,101], solution side pressure [85–87,96], coolant flow [87,94,101], coolant temperature [87,94,101], inlet vapour temperature [88], inlet gas orifice size [90,91,98–101], inlet vapour flow [90,91,94–96,98,100,101].
Development of bubble absorption refrigeration technology: A review
2018, Renewable and Sustainable Energy ReviewsHeat and mass transfer characteristics of R124-DMAC bubble absorption in a vertical tube absorber
2017, Experimental Thermal and Fluid ScienceCitation Excerpt :However, increases of solution temperature and mass fraction or cooling medium temperature had negative effects on the absorber performance. For the vertical tubular bubble absorber, the heat and mass transfer processes with ammonia-water as working pairs were also investigated by experiments and modeled analyses [25–29]. Generally, three kinds of flow patterns, churn, slug and bubble flow patterns would be formed in the absorber because the bubbles were constrained by tube wall.
Experimental investigation for heat and mass transfer characteristics of R124-DMAC bubble absorption in a vertical tubular absorber
2017, International Journal of Heat and Mass Transfer