Comparison of different adsorption pairs based on zeotropic and azeotropic mixture refrigerants for solar adsorption ice maker

Mostafa, Massaud; Ezzeldien, Mohammed; Attalla, M.; Ghazaly, Nouby M.; Alrowaili, Z. A.; Hasaneen, M.F.; Shmroukh, Ahmed N.

doi:10.1007/s11356-021-13535-z

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…Subsequently, due to the high water demand [35] and the shortage of energy sources [36], the solar stills are acceptable facility to produce desalinated water [37]. Accordingly, using modified and efficient solar still is a substantial issue [38], especially in hot and arid regions such as Upper Egypt [39]. Therefore, using combined amendment of external reflectors, high thermal conductive fins, high absorptive basin, transparent walls and internal reflectors is extremely recommended [40].…”

Section: Stepped Solar Stills' Basin Additions Improvementsmentioning

confidence: 99%

Stepped Solar Stills’ Development and Improvement for Seawater Desalination

Shmroukh

2021

SVU-International Journal of Engineering Sciences and Applicati

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Nowadays freshwater needs were covered by fossil fuel-based desalination systems in many areas over the world. However, fossil fuels' excessive burning results in rapid depletion and pollution of the local environment as well as threat to life sustainability. Therefore, through the last few decades the scientific community focused on the systems relying on solar energy in seawater desalination as a clean alternative.Stepped solar stills, which convert solar energy to the required heat for producing freshwater in seawater desalination, are paid much attention. This article provides a comprehensive analysis of stepped solar stills' development.Performance enhancement techniques, desalinated water production, efficiency and maximum theatrical production are discussed. This work aims to keep researchers and concerned scientific community abreast of stepped solar stills' improvements. Such stills of low construction and running costs can meet the freshwater daily needs for small communities in coastal areas, islands and rural areas especially in Mideast. In conclusion, this review clarified that the stepped type solar stills still need multiple improvements to enhance their production efficiency and freshwater quantity. Further attention should be paid to the design of modified stills to attain better and efficient solar heat absorption as well as evaporation of seawater.

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Section: Stepped Solar Stills' Basin Additions Improvementsmentioning

confidence: 99%

Stepped Solar Stills’ Development and Improvement for Seawater Desalination

Shmroukh

2021

SVU-International Journal of Engineering Sciences and Applicati

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“…Solar refrigeration can be of two types: (i) solar photovoltaic (PV) and (ii) solar thermal. The solar thermal systems require a higher investment than the solar PV systems, but can be a better option for high-capacity systems, such as vapor absorption and adsorption refrigeration systems (Selvaraj and Victor 2020;Mostafa et al 2021) Most recently, Devarajan et al (2021) used solar thermal system for operating small ejector based refrigeration unit.…”

Section: Introductionmentioning

confidence: 99%

A novel solar-powered milk cooling refrigeration unit with cold thermal energy storage for rural application

Sidney¹,

Prabakaran

Kim

et al. 2021

Environ Sci Pollut Res

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This experimental study analyzed the use of solar photovoltaic energy for operating a novel twin-circuit DC milk chiller without batteries using water-based cold thermal energy storage for different seasons in Chennai, India. HFC-134a and HC-600a were used as refrigerants in the two individual circuits. For each season, the test was conducted continuously for 18 days to analyze the quantity of generated ice that could be utilized to chill 10 L of milk in the morning and in the evening. The average quantity of ice formed per day in the ice bank during monsoon, winter, and summer seasons was found to be 3.61, 19.75, and 27.97 kg, respectively. Thus, it is evident that the use of solar energy with thermal energy storage is effective for operating the milk chilling unit for two seasons, namely winter and summer. However, the system requires an additional power source for continuous operation during the monsoon season. In this study, solar photovoltaic power was observed to be a good choice for chilling milk in the context of global warming and energy consumption. The use of thermal energy storage also allows the initial cost to be reduced.

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“…In recent decades, environmentally friendly refrigeration systems received considerable attention due to global warming and Ozone layer depletion [1,2]. On the other hand, traditional refrigeration systems consume enormous amount of fossil fuels to be driven.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of New Composite Adsorbents for Solar-Driven Adsorption Refrigerator

Shmroukh

Hares

Hamdy

et al. 2021

SVU-International Journal of Engineering Sciences and Applicati

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Sustainability, nature conservation, and energy economy remain the significant points of the global community focus. Due to the rapid growth in the world wide consumption of limited conventional energy and the environmental consideration for refrigerant agents' choice, solar-driven adsorption refrigerators (SAR) have been the focal of extensive research for cooling and refrigeration applications subjected to meet the fast increase in refrigeration needs of the developing countries such as Egypt. A new two composite adsorbents consist of 95wt% silica gel powder with 5wt% activated carbon powder (SGC1) and 90wt% silica gel powder with 10wt% activated carbon powder (SGC2), used with water as a refrigerant agent in a solar adsorption refrigerator installed in Upper Egypt. These adsorbents were evaluated as eco-friendly and low-cost cooling storage for cooling fruits and vegetables within a convenient storage environment. The experiments were done under the weather conditions of Qena City in Upper Egypt. The main results showed that the best obtained coefficient of performance (COP) was about 0.174 for SGC1. The specific cooling power (SCP) value was about 0.0199 kW/kg for SGC1. Moreover, the delivered evaporator temperature by the adsorption refrigerator can reach about 2.8-1.6°C. These results revealed that the proposed new adsorbents are beneficial for storing vegetables and fruits in remote and rural areas where electrical power sources are insufficient or unavailable.

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Comparison of different adsorption pairs based on zeotropic and azeotropic mixture refrigerants for solar adsorption ice maker

Cited by 8 publications

References 19 publications

Stepped Solar Stills’ Development and Improvement for Seawater Desalination

Stepped Solar Stills’ Development and Improvement for Seawater Desalination

A novel solar-powered milk cooling refrigeration unit with cold thermal energy storage for rural application

Evaluation of New Composite Adsorbents for Solar-Driven Adsorption Refrigerator

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