Novel intermittent absorption cooling system based on membrane separation process

Ibarra-Bahena, Jonathan; Rivera, W.; Romero, R.J.; Montiel-González, M.; Dehesa-Carrasco, U.

doi:10.1016/j.applthermaleng.2018.03.039

Cited by 13 publications

(5 citation statements)

References 28 publications

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“…Finally, the cooling water flows in the space between the other side of the condensing plate and the support plate. Previous studies described the experimental membrane desorber in detail [15][16][17]. A 316 L SS plate heat exchanger (by Alfa Laval) was used to heat the H2O/LiBr solution.…”

Section: Membrane Desorber/condenser Modulementioning

confidence: 99%

“…Ibarra-Bahena et al [15] proposed a new intermittent absorption cooling system including a membrane desorber/condenser coupled to a solar system. The membrane module was experimentally evaluated for four operation hours; after this time, the total amounts of refrigerant available, assuming a 1 m 2 membrane area, were 14.50, 11.59, and 7.20 kg with LiBr solution temperatures of 95.1, 85.2, and 75.1 • C, respectively.…”

Section: Introductionmentioning

confidence: 99%

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Feasibility Analysis of a Membrane Desorber Powered by Thermal Solar Energy for Absorption Cooling Systems

et al. 2020

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In absorption cooling systems, the desorber is a component that separates the refrigerant fluid from the liquid working mixture, most commonly completed by boiling separation; however, the operation temperature of boiling desorbers is generally higher than the low-enthalpy energy, such as solar, geothermal, or waste heat. In this study, we used a hydrophobic membrane desorber to separate water vapor from an aqueous LiBr solution. Influencing factors, such as the H2O/LiBr solution and cooling water temperatures, were tested and analyzed. With the experimental data, a solar collector system was simulated on a larger scale, considering a 1 m2 membrane. The membrane desorber evaluation shows that the desorption rate of water vapor increased as the LiBr solution temperature increased and the cooling water temperature decreased. Based on the experimental data from the membrane desorber/condenser, a theoretical heat load was calculated to size a solar system. Meteorological data from Emiliano Zapata in Mexico were considered. According to the numerical result, nine solar collectors with a total area of 37.4 m2 provide a solar fraction of 0.797. The membrane desorber/condenser coupled to the solar system can provide an average of 16.8 kg/day of refrigerant fluid that can be used to produce a cooling effect in an absorption refrigerant system.

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Section: Membrane Desorber/condenser Modulementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Feasibility Analysis of a Membrane Desorber Powered by Thermal Solar Energy for Absorption Cooling Systems

et al. 2020

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“…Some research studies had demonstrated this concept for absorption heat pump applications. Ibarra-Bahena et al [ 64 ] analyzed a theoretical intermittent absorption chiller operated with the LiBr-water mixture, which integrated a membrane desorption process driven by thermal solar energy. In this configuration, the desorption-condensation and evaporation-absorption processes occur separately.…”

Section: Membrane-based Desorbersmentioning

confidence: 99%

Role of Membrane Technology in Absorption Heat Pumps: A Comprehensive Review

et al. 2020

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The role of heat pumps is linked to the actions of human life. Even though the existing technologies perform well in general, they have still some problems, such as cost, installation area, components size, number of components, noise, etc. To address these issues, membrane technologies have been introduced in both heat and cooling devices. The present work proposes and studied the review of the role of membrane technology in the heat pumps. The study focuses on the advancement and replacement of membrane in the place of absorption and compression heat pump components. The detailed analysis and improvements are focused on the absorber, desorber, and heat and mass exchanger. The parameters conditions and operation of membrane technologies are given in detail. In addition to this, the innovation in the heat pumps using the membrane technology is given in detail.

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“…Table 1 shows the experimental reports about these components. Other aqueous mixtures have been tested [ 21 , 22 ], as well as different membrane-based desorber operation modes [ 23 ]. Comprehensive literature reviews about membrane technology in absorption heat pumps were carried out by Asfand and Bourouis [ 24 ] and Ibarra-Bahena et al [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Performance of a Membrane Desorber Operating under Simulated Warm Weather Condensation Temperatures

et al. 2021

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In absorption systems using the aqueous lithium bromide mixture, the Coefficient of Performance is affected by the desorber. The main function of this component is to separate the refrigerant fluid from the working mixture. In conventional boiling desorbers, constant heat flux and vacuum pressure conditions are necessary to carry out the desorption process, and usually, the absorbers are heavy and bulky; thus, they are not suitable in compact systems. In this study, a membrane desorber was evaluated, operating at atmospheric pressure conditions with a water/lithium bromide solution with a concentration of 49.6% w/w. The effects of the solution temperature, solution mass flow, and condensation temperature on the desorption rate were analyzed. The maximum desorption rate value was 6.1 kg/m2h with the following operation conditions: the solution temperature at 95.2 °C, the solution mass flow at 4.00 × 10−2 kg/s, and the cooling water temperature at 30.1 °C. On the other hand, the minimum value was 1.1 kg/m2h with the solution temperature at 80.2 °C, the solution mass flow at 2.50 × 10−2 kg/s, and the cooling water temperature at 45.1 °C. The thermal energy efficiency, defined as the ratio between the thermal energy used to evaporate the refrigerant fluid with respect to the total thermal energy entering the membrane desorber, varied from 0.08 to 0.30. According to the results, a high solution mass flow, a high solution temperature, and a low condensation temperature lead to an increase in the desorption rate; however, a low solution mass flow enhanced the thermal energy efficiency. The proposed membrane desorber could replace a conventional boiling desorber, especially in absorption cooling systems that operate at high condensation temperatures as in warm weather regions.

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Novel intermittent absorption cooling system based on membrane separation process

Cited by 13 publications

References 28 publications

Feasibility Analysis of a Membrane Desorber Powered by Thermal Solar Energy for Absorption Cooling Systems

Feasibility Analysis of a Membrane Desorber Powered by Thermal Solar Energy for Absorption Cooling Systems

Role of Membrane Technology in Absorption Heat Pumps: A Comprehensive Review

Experimental Performance of a Membrane Desorber Operating under Simulated Warm Weather Condensation Temperatures

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