Thermodynamic design procedure for solid adsorption solar refrigerator

Anyanwu, E.E.; Ogueke, Nnamdi V.

doi:10.1016/j.renene.2004.05.005

Cited by 67 publications

(25 citation statements)

References 10 publications

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“…A comparison study conducted by Anyanwu and Ogueke [114] concluded that COP from using zeolite-water is about 0.3 which is higher than COP of using activated carbonmethanol and activated carbon-ammonia. The activated carbon-ammonia pair is the best choice for low temperature applications, while, the zeolite-water pair is better suited for air-conditioning applications [114].…”

Section: Effect Of Adsorbent Pairmentioning

confidence: 97%

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Review and recent improvements of solar sorption cooling systems

Bataineh

Taamneh

2016

Energy and Buildings

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Section: Effect Of Adsorbent Pairmentioning

confidence: 97%

“…The activated carbon-ammonia pair is the best choice for low temperature applications, while, the zeolite-water pair is better suited for air-conditioning applications [114].…”

Section: Effect Of Adsorbent Pairmentioning

confidence: 99%

Review and recent improvements of solar sorption cooling systems

Bataineh

Taamneh

2016

Energy and Buildings

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“…Some researchers have performed a thermodynamic design of a solar adsorption refrigerator [7], and designed algorithms to determine the amount of ice produced by these devices [8] [9]. However, these works are approximations based on the variation of the ratio adsorbate/adsorbent, analyzed with the corresponding conditions at two different stages of the day when the concentration of adsorbate in the absorbent are expected to be minimum and maximum, supposing equilibrium state between the two and fixed values of pressure and temperature.…”

Section: Introductionmentioning

confidence: 99%

Thermal Analysis and Experimental Validation of Parabolic Trough Collector for Solar Adsorption Refrigerator

Mateo¹,

Echarri²,

Samsón³

2017

EPE

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This work presents an algorithm able to simulate the heating of a solar collector throughout the day. The discussed collector is part of a solar adsorption refrigerator, and is used to regenerate the activated carbon contained inside a cylindrical recipient (absorber), which is located in the focal line of a parabolic trough concentrator. The developed algorithm takes into account all the transfer mechanisms when analyzing the heat transfers taking place between the collector's components and the environment, as well as the transfer mechanisms towards the absorber's interior. The temperature evolution for the collector's elements is obtained, and the model is validated by comparing the experimentally measured surface temperature of the absorber with the one determined by the algorithm. The experimental data were gathered from similar collectors in two different scenarios: Santo Domingo (Dominican Republic) and Buenos Aires (Argentina). The model is satisfactorily validated with experimental data.

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“…The refrigerants used in these systems are environmentally friendly natural refrigerants like methanol [12][13][14][15][16][17], ammonia [18], and water [19][20][21][22][23]. The thermally operated compressor has no moving parts and could be driven by any low quality heat source like solar radiation, waste energy, as well as geothermal energy [3,4,24], and that is why solid adsorption refrigeration has tracked much interest and development over the world [6].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Continuous Operation Adsorption Chiller Powered by Solar Energy Using Silica Gel and Water as the Working Pair

Hassan¹

2014

Energies

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Abstract:In the present study, dynamic analysis and performance evaluation of a solar-powered continuous operation adsorption chiller are introduced. The adsorption chiller uses silica gel and water as the working pair. The developed mathematical model represents the heat and mass transfer within the reactor coupled with the energy balance of the collector plate and the glass cover. Moreover, a non-equilibrium adsorption kinetic model is taken into account by using the linear driving force equation. The variation of solar radiation, wind speed, and atmospheric temperature along a complete cycle are considered for a more realistic simulation. Based on the case studied and the baseline parameters, the chiller is found to acquire a coefficient of performance of 0.402. The average thermal efficiency of the solar collector is estimated to be 62.96% and the average total efficiency approaches a value of 50.91%. Other performance parameters obtained are 363.8 W and 1.82 W/kg for the cooling capacity and the specific cooling power of the chiller, respectively. Furthermore, every 1 kg of silica gel inside the adsorption reactor produces a daily chilled water mass of 3 kg at a temperature of 10• C. In addition, the cooling system harnesses 25.35% of the total available solar radiation and converts it to a cooling effect.

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Thermodynamic design procedure for solid adsorption solar refrigerator

Cited by 67 publications

References 10 publications

Review and recent improvements of solar sorption cooling systems

Review and recent improvements of solar sorption cooling systems

Thermal Analysis and Experimental Validation of Parabolic Trough Collector for Solar Adsorption Refrigerator

Performance Evaluation of a Continuous Operation Adsorption Chiller Powered by Solar Energy Using Silica Gel and Water as the Working Pair

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