Performance of a solar adsorption cooling and desalination system using aluminum fumarate and silica gel

Elsheniti, Mahmoud B.; Rezk, Ahmed; Shaaban, Mamdouh M.; Roshdy, Mohamed; Nagib, Yahia Mohamed; Elsamni, Osama A.; Saha, Bidyut Baran

doi:10.1016/j.applthermaleng.2021.117116

Cited by 46 publications

(7 citation statements)

References 55 publications

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“…The significant heat losses from the solar collector and the low heat transfer coefficient from the adsorber plate to the generator were the main causes of the overall low COP for all trials (the maximum average COP was 0.074). Elsheniti et al [12] quantitatively analyzed the use of an aluminum fumarate and silica gel as adsorbents in a solar adsorption cooling and desalination system. The results showed that for normal cooling with inlet chilled water of 15 • C, the COP and gross COP solar for the SG-based system reached 0.6 and 0.4, respectively; they were greater than those for the AF-based system due to the MOF aluminum fumarate's poor heat conductivity.…”

Section: Introductionmentioning

confidence: 99%

Performance Assessment of an Ice-Production Hybrid Solar CPV/T System Combining Both Adsorption and Vapor-Compression Refrigeration Systems

et al. 2023

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The technology of a hybrid solar concentration photovoltaic/thermal (CPV/T) system is an efficient way of converting solar energy to heat and electrical power, in which overall energy-extraction efficiency is at its highest. In this study, numerical dynamic simulation models were developed for a hybrid solar CPV/T system and an adsorption refrigeration system (ARS). Under the climatic conditions of Riyadh all year round, the electrical and thermal powers generated by the CPV/T system were used to estimate the ice production of both the vapor compression refrigeration system (VCS) and the ARS. The CPV/T system can provide a thermal energy of 37.6 kWh and electrical energy of 24.7 kWh a day on average over the year using a 12.5 m2 facing area of Fresnel lenses. The ARS employed an advanced approach which used Maxsorb III adsorbent packed in two aluminum foam beds. An optimum cycle time of the ARS was adapted for each month to match the variation in the thermal energy, while a variable-speed compressor was chosen for the VCS. Due to its higher coefficient of performance (COP), the proposed solar hybrid system can produce 494.4 kg of ice per day while sharing 84.5% of the VCS. The average solar COP over the year of the hybrid system can attain 0.875, which represents a promising value for a solar ice-production system.

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Section: Introductionmentioning

confidence: 99%

Performance Assessment of an Ice-Production Hybrid Solar CPV/T System Combining Both Adsorption and Vapor-Compression Refrigeration Systems

et al. 2023

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“…MIL-101 has a surface area of 4000 m 2 /g [32] with a pore volume of 1.51 cm 3 /g [33] and can produce an SCE of 89.7 R-ton/ton [34]. Similarly, aluminum fumarate can produce an SCE of 185 W/kg at T reg = 80 • C [35]. Adsorption of other refrigerants, such as CO 2 adsorption on MOFs, is also investigated in the literature [36,37].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of Phenol-Resin-Based Adsorbents for Heat Transformation Applications

et al. 2023

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Phenol resins (PRs) are considered as relatively inexpensive adsorbents synthesized from agricultural biomass via employing a variety of synthesized procedures. The performance of PR for heat transformation application is not widely investigated. In this regard, the present study aims to evaluate the four PR derivative/refrigerant pairs, namely (i) KOH6-PR/CO2, (ii) SAC-2/HFC, (iii) KOH4-PR/ethanol, and (iv) KOH6-PR/ethanol, for adsorption cooling and adsorption heating applications. Ideal cycle analyses and/or thermodynamic modelling approaches were utilized comprising governing heat and mass balance equations and adsorption equilibrium models. The performance of the AHP system is explored by means of specific cooling energy (SCE), specific heating energy (SHE), and coefficient of performance (COP), both for cooling and heating applications, respectively. It has been realized that KOH6-PR/ethanol could produce a maximum SCE of 1080 kJ/kg/cycle and SHE of 2141 kJ/kg/cycle at a regeneration temperature (Treg) and condenser temperature (Tcond) of 80 °C, and 10 °C, respectively, followed by KOH4-PR/ethanol, SAC-2/HFC-32, and KOH6-PR/CO2. The maximum COP values were estimated to be 1.78 for heating and 0.80 for cooling applications, respectively, at Treg = 80 °C and Tcond = 10 °C. In addition, the study reveals that, corresponding to increase/decrease in condenser/evaporator pressure, both SCE and SHE decrease/increase, respectively; however, this varies in magnitude due to adsorption equilibrium of the studied PR derivative/refrigerant pairs.

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“…The low performance of ACD is stemmed from the inefficient heat transfer hence mass transfer within the adsorbent materials due to their low effective thermal agility. As a result, the system's response to the temperature variations during exothermic adsorption and endothermic desorption swing is delayed [6]. Many approaches were investigated to enhance ACD systems to compete with other conventional systems, such as using new composite materials [7][8][9][10][11], adding metallic additives of higher thermal conductivity than the adsorbent materials [12][13][14], developing new granulated adsorbent packing techniques [15], using wire finned heat exchangers [16,17], and adsorbent coating [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Performance investigation of adsorption cooling and desalination systems employing thermally enhanced copper foamed bed coated with SAPO-34 and CPO-27(Ni)

Shaaban

Elsheniti

Rezk

et al. 2022

Applied Thermal Engineering

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Performance of a solar adsorption cooling and desalination system using aluminum fumarate and silica gel

Cited by 46 publications

References 55 publications

Performance Assessment of an Ice-Production Hybrid Solar CPV/T System Combining Both Adsorption and Vapor-Compression Refrigeration Systems

Performance Assessment of an Ice-Production Hybrid Solar CPV/T System Combining Both Adsorption and Vapor-Compression Refrigeration Systems

Performance Evaluation of Phenol-Resin-Based Adsorbents for Heat Transformation Applications

Performance investigation of adsorption cooling and desalination systems employing thermally enhanced copper foamed bed coated with SAPO-34 and CPO-27(Ni)

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