Improving ice productivity and performance for an activated carbon/methanol solar adsorption ice-maker

Qasem, Naef A.A.; El‐Shaarawi, M. A. I.

doi:10.1016/j.solener.2013.10.018

Cited by 46 publications

(21 citation statements)

References 24 publications

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“…As a consequence, enhanced and cost effective technologies are required to remove them from textile effluents Rengaraj studied the agricultural solid waste for the removal of organic pollutant like phenol from wastewater by palm seed coating through activated carbon. The removal of phenol from aqueous solution on activated carbon was carried out under various conditions like contact time, concentration, pH and adsorbent dose [12].…”

Section: Sultan Alam Et Almentioning

confidence: 99%

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

Alam¹,

Rehman²,

Amin³

et al. 2018

Bull. Chem. Soc. Eth.

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ABSTRACT. The Eucalyptus lenceolata wood was collected from Malakand division, Khyber Pakhtunkhwa Pakistan. Chemical activation of sample was conducted for surface efficiency. Batch studies were performed to address various experimental parameters like, contact time, temperature and adsorbent dosage for the removal of dye. For elemental analysis, surface morphology and for identification of different functional groups, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) techniques were applied, respectively. Removal of dye (Basic Green 5) was studied on raw and activated samples by kinetics adsorption at different temperature. BET adsorption isotherm was used to characterize the surface area of the sample. Under the conditions investigated, a higher carbonization temperature promoted development of porous structures. Intraparticle diffusion, Elovich and Bhangam models were used for adsorption kinetics studies. From adsorption kinetic data thermodynamic parameters like ΔH ≠ , ΔS ≠ and ΔE ≠ were determined. The results show that the adsorption is spontaneous process. The endothermic nature of adsorptive process is due to the positive value of enthalpy. The negative entropy shows that acids molecules on the surface of adsorbent take an oriented position. The results shows that all the models were best fitted for these data of adsorption.

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Section: Sultan Alam Et Almentioning

confidence: 99%

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

Alam¹,

Rehman²,

Amin³

et al. 2018

Bull. Chem. Soc. Eth.

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“…[2][3][4][5] However, the main disadvantage of this working pair is its low adsorption capacity: under the working conditions of air conditioning, the cycled adsorption capacity is about 8% to 9% kg/kg. 11,12 However, the coefficient of performance (COP) is only about 0.07 to 0.09. Gordeeva analyzed the composite adsorbent of silica gel/LiCl.…”

Section: Introductionmentioning

confidence: 99%

Experimental and theoretical performance analysis of the silica gel, LiCl with water, methanol multifunction adsorption system

2019

Int J Energy Res

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Summary The world is facing the ever‐worsening issues of global warming. The results show that the physical‐/chemical‐adsorbent water can improve the adsorption capacity of 1.22 kg/kg. If water is used as the adsorbate, the adsorbent has a serious issue of corrosion. So, methanol is utilized. However, methanol just can be heated by low‐temperature heat, because methanol will be broken down in above 140°C adsorption system. The multifunction adsorption system can produce one cold effect output and two power generation outputs. The results show that the silica gel/LiCl‐methanol multifunction adsorption system has a higher cooling exergy efficiency of 0.25 and a higher total system exergy efficiency of 0.87 compared with that of the silica gel‐water system.

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“…The shape of the experimental and theoretical curves for the amount of desorbed methanol agree well, but the experimental process is finalized much earlier and significant quantitative differences are observed, reaching a 50% error in some cases. In 2013 Qasem y El-Shaarawimade an analysis of the factors that can improve the performance of this type of devices using a simulation in Matlab [16].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Simulation of Absorber for Solar Adsorption Refrigerator: A Validated Numerical Model

Echarri¹,

Samsón²,

Gariaev³

et al. 2017

EPE

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In this work, a numerical model is presented that describes the transfer of heat and mass inside a cylindrical regenerator of a solar adsorption refrigerator that uses the methanol/activated-carbon refrigerant pair. This model is based on the equations of mass conservation, energy conservation, Darcy's law and the balance model between sorbate and sorbent given by the Dubinin-Astakhov's equation. On the other hand, the linear driving force (LDF) model is used to describe the rate of desorption. In the developed model, the spatial variation of methanol vapor pressure within the activated carbon bed is taken into account and, as one of the boundary conditions, the temperature is used at the external surface of the absorber measured experimentally along the day. Using the developed model, the temperature, pressure and concentration of methanol were calculated; both inside the grains of carbon and in the space between the grains, as a function of time. The algorithm was validated comparing the numerical results with the experimental data, obtaining a satisfactory concordance.

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Improving ice productivity and performance for an activated carbon/methanol solar adsorption ice-maker

Cited by 46 publications

References 24 publications

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

Removal of basic green 5 by carbonaceous adsorbent: Adsorption kinetics

Experimental and theoretical performance analysis of the silica gel, LiCl with water, methanol multifunction adsorption system

Dynamic Simulation of Absorber for Solar Adsorption Refrigerator: A Validated Numerical Model

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