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Integral valveless adsorbed solar refrigerator

A solar refrigerator and adsorption technology, applied in the field of solar energy utilization, can solve the problems of stable obstacles from the manufacturing cost of the solar refrigerator to the performance of the device, no application of adsorbent materials, low quality of adsorbents, etc., so as to ensure efficient heat and mass transfer performance, It is easy to popularize and apply and improve the effect of adsorption performance.

Inactive Publication Date: 2002-09-25
SHANGHAI JIAO TONG UNIV
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  • Abstract
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AI Technical Summary

Problems solved by technology

The disadvantage of this structure is that the quality of the adsorbent accumulated in the adsorption cylinder is relatively small, so the cooling capacity is relatively small, and the manufacturing cost is higher than that of the flat-plate heat-collecting adsorber; and the heat dissipation of the adsorption bed requires an additional cooling circuit. For practical use, it is necessary to increase the accumulation of adsorbent in the adsorption bed and further reduce the manufacturing cost
At present, most of the solar adsorption refrigerators at home and abroad use valves to connect the adsorption bed, condenser, throttle valve, and evaporator with pipes, and add a liquid receiver to the system to receive the desorption from the adsorbent. The refrigerant liquid that comes out, such a structure, makes the solar refrigerator encounter obstacles from the manufacturing cost to the stability of the device performance
From the known various research reports, no solidified adsorption material is applied to the production process of the adsorption generator of the system

Method used

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  • Integral valveless adsorbed solar refrigerator
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Examples

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Effect test

Embodiment 1

[0011] Embodiment one (1m 2 collector)

[0012] The solar adsorption refrigerator adopting the above-mentioned valveless structure of the present invention can receive 18~22MJ / m of solar radiation energy. 2 Under the premise, after a day's cycle, it can provide the outside world with a daily ice production capacity of 4-6kg. The product needs about 20kg of adsorbent, 6kg of refrigerant, and the volume of the adsorption refrigerator is 80 liters. This product is suitable for a family of three, and the cost price of the product after industrialization is within 1,800 yuan / set.

Embodiment 2

[0013] Embodiment two (3m 2 collector)

[0014] The solar adsorption refrigerator adopting the above-mentioned valveless structure can receive 18-22MJ / m of solar radiation energy. 2 Under the premise, after a day's cycle, it can provide the outside world with a daily ice production capacity of 15-18kg. This product needs about 60kg of adsorbent, 18kg of refrigerant, and the volume of the adsorption refrigerator is 150 liters. This product is suitable for storing medical vaccines in medical centers in remote areas, and the cost price of the product after industrialization is within 5,000 yuan / set.

Embodiment 3

[0015] Embodiment three (5m 2 collector)

[0016] The solar adsorption refrigerator adopting the above-mentioned valveless structure can receive 18-22MJ / m of solar radiation energy. 2 Under the premise, after a day's cycle, it can provide the outside world with a daily ice production capacity of 30-35kg. The product needs about 100kg of adsorbent, 30kg of refrigerant, and the volume of the adsorption refrigerator is 210 liters. This product can meet the refrigeration needs of the catering industry in the daily life of small groups such as small farms and border posts. The cost price of the product after industrialization is within 8,000 yuan / set.

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Abstract

The integral valveless adsorbed solar refrigerator has lumpy adsorbing material coated in thin copper sheet filled in the adsorption bed, heat insulating material filled peripherally, transparent fiber cover plate on the upper surface, adsoption bed connected directly to condensator and evaporator in ice groove, condensator fin pipe comprising stainless steel base pipe and aluminium fins, evaporator with trapezoidal section, open-mouthed ice groove of stainless steel sheet, casing of polyurethane and movable support. It can be made in refrigerator system with small heat collecting area or with relatively larger heat collecting area and is suitable for use in area with rich solar energy resource.

Description

Technical field: [0001] The invention relates to a solar refrigerator, in particular to an adsorption solar refrigerator with an integral valveless structure, which belongs to the technical field of solar energy utilization. Background technique: [0002] After entering the 21st century, people's understanding of sustainable development has begun to be widely accepted. The application and development of solar refrigeration will play an important role in the sustainable development in the future no matter from the perspective of environmental protection or energy. Among them, solar solid adsorption refrigeration has the advantages of simple device structure, convenient operation and no operating cost, etc., and shows its unique advantages in energy saving and environmental protection. French scholars built a flat-plate adsorption ice maker in the 1980s (Pons M, Guilleminot JJ. Design of an experimental solar-powered, solid-adsorption ice maker. Trans. of the ASME, Journal of...

Claims

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Application Information

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IPC IPC(8): F25B27/00F25D11/02
Inventor 李明王如竹许煜雄孙长江
Owner SHANGHAI JIAO TONG UNIV
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