Experimental study on performance change with time of solar adsorption refrigeration system

Chen, Q.F.; Du, Shi-Yuan; Yuan, Z.X.; Sun, Tao; Li, Y.X.

doi:10.1016/j.applthermaleng.2018.04.061

Cited by 30 publications

(6 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…𝑅 𝑑 = 0.5(1 + cos β). 𝜌 𝑔 (22) In conclusion, the tilted surface total radiation could be calculated using equation:…”

Section: Solar Beam Radiationmentioning

confidence: 99%

“…Thus, the addition of Nano-activated carbon with mass fractions of 4.7%, 11.1% and 18.3% to the adsorbent bed at 30 and 34℃ caused 11%, 21%, 33% and 17%, 23%, 25% increase in COP respectively which varies from 0.11 to 0.139. Chen et al [22] experimental results showed that it was far from a linear relationship between the adsorption amount and the adsorption time. In the first 600 s, the adsorption rate was very high, and the bed temperature is sudden increased.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation and Optimization of a Solar Adsorption Icemaker

Abdel-Dayem¹,

Baharith²

2022

IJHT

View full text Add to dashboard Cite

A solar adsorption ice maker was numerically studied. The system is an adsorption cycle that is connected to a separate solar heating system. An oil solar collector is connected to the generator of the adsorption cycle through a heat-exchanger in a closed loop. A refrigeration pair of Methanol-Activated Carbon (AC) was considered in the adsorption cycle. A mathematical model was developed for each component of the system. A transient numerical simulation was established, and the annual system performance was demonstrated under weather conditions of Makkah city, 21.5 ⸰N. The system unique design was achieved, and the ideal mass was predicted for the adsorbent and adsorbate together maintaining a constant percentage between them. It is found that the system which apply the Activated carbon/Methanol YKAC (14-20 MESH) might possibly deliver high solar system performance (SCOP) of about 0.26 during the cold days and 0.367 of cycle. As expected, lower temperature of the condenser and higher temperature of the evaporator can improve the system COP. In addition, three different kinds of collectors were considered and the maximum efficiency of about 0.80 was achieved for flat plate at optimum area of 3.15 m2 which is higher than both evacuated-tube (ETC) and parabolic trough collector (PTC) all over the year. The ETC efficiency is about 0.71 at ideal collector area of 3.5 square meters while the optimum area of the parabolic trough is 8.4 m2 at 0.79 of efficiency. In conclusion, the system results recommended that 22kg of ice could be produced every day for each square meter of solar collector.

show abstract

“…𝑅 𝑑 = 0.5(1 + cos β). 𝜌 𝑔 (22) In conclusion, the tilted surface total radiation could be calculated using equation:…”

Section: Solar Beam Radiationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical Simulation and Optimization of a Solar Adsorption Icemaker

Abdel-Dayem¹,

Baharith²

2022

IJHT

View full text Add to dashboard Cite

show abstract

“…Chen et al [61] analysed a composite adsorbent based on 13X zeolite and doped with CaCl 2 . The authors found a reduction in adsorption capacity when trying to improve the thermal conductivity of the material.…”

Section: Composite and Doped Adsorbentsmentioning

confidence: 99%

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

et al. 2021

View full text Add to dashboard Cite

Adsorption refrigeration systems are promising, sustainable solutions for many cooling applications. The operating range and the performance of an adsorption cooling cycle are strongly dependent on the properties of adsorbents, adsorbates, and bed coatings. Therefore, further research and analysis may lead to improved performance of adsorption coolers. In this paper, studies on working pairs using natural refrigerants and the properties of adsorbent coatings were reviewed. The selected working pairs were then thermodynamically characterised and ranked in terms of refrigerant evaporation temperature values. This was found to be a key parameter affecting the applicability of a given adsorbent/adsorbate pair and the value of SCP (Specific Cooling Power), COP (Coefficient of Performance) parameters, which are now commonly used comparison criteria of adsorption chillers. In the analysis of the coating studies, the focus was on the effect of individual parameters on the performance of the cooling system and the effect of using coated beds compared to packed beds. It was found that a fundamental problem in comparing the performance of different cooling systems is the use of different operating conditions during the tests. Therefore, the analysis compares the performance of the systems along with the most important thermodynamic cycle parameters for the latest studies.

show abstract

“…According to the literature of the present review, Figures 2 and 3 detail the operating ranges of prototypes and the main commercial heat-driven cooling chillers. ADS by physisorption (ADS-Ph) equipment has a COP between 0.13-0.62 and requires a T Gen between 50-130 • C [14,[136][137][138][139][140][141][142]. The most widely used adsorbate-adsorbent is silica gel/water and reaches T Evap of up to 5 • C [15,[143][144][145].…”

Section: Ref Technologymentioning

confidence: 99%

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

et al. 2021

View full text Add to dashboard Cite

The trend to reduce CO2 emissions in cooling processes has made it possible to increase the alternatives for integrating solar energy with thermal equipment whose viability depends on its adaptation to polygeneration schemes. Despite the enormous potential offered by the industry for cooling and heating processes, solar cooling technologies (SCT) have been explored in a limited way in the industrial sector. This work discusses the potential applications of industrial SCTs and classifies hybrid polygeneration schemes based on supplying cold, heat, electricity, and desalination of water; summarizes the leading SCTs, and details the main indicators of polygeneration configurations in terms of reductions on primary energy consumption and payback times. To achieve an energy transition in refrigeration processes, the scenarios with the most significant potential are: the food manufacturing industry (water immersion and crystallization processes), the beverage industry (fermentation and storage processes), and the mining industry (underground air conditioning).

show abstract

Experimental study on performance change with time of solar adsorption refrigeration system

Cited by 30 publications

References 30 publications

Numerical Simulation and Optimization of a Solar Adsorption Icemaker

Numerical Simulation and Optimization of a Solar Adsorption Icemaker

Adsorbents, Working Pairs and Coated Beds for Natural Refrigerants in Adsorption Chillers—State of the Art

Review of Polygeneration Schemes with Solar Cooling Technologies and Potential Industrial Applications

Contact Info

Product

Resources

About