Related Books Free with a 30 day trial from Scribd. Related Audiobooks Free with a 30 day trial from Scribd. Elizabeth Howell. No problem. Anupam Pandey. Harsh Bahiram. Mano Manoj. Show More. Views Total views. Actions Shares. No notes for slide. Solar refrigeration 1. Solar Refrigeration Prepared by M. Devakumar 2. What is Refrigeration? Refrigeration is a process in which work is done to move heat from one location to another.
Where it is uses: To provide refrigeration for food and medicine preservation. To provide comfort cooling. Solar Refrigeration: Refrigerator which runs on electricity provided by Solar Energy is known as solar refrigeration. Solar-powered refrigerators may be most commonly used in the future generation. Developing the world to help mitigate poverty and climate change.
Photovoltaic Operated Refrigeration Cycle: Vapor compression cycle with power input from Photovoltaic cells. DC electric power output from PV runs the compressor of a conventional cycle Considerations: Must match voltage imposed on PV array to the motor characteristics and power requirements of the refrigeration cycle For given operating condition solar radiation and module temperature , single voltage provides maximum power output.
Must find compressor motor closely matched to the electric characteristics of the PV module. Schematic view of a conventional vapor compression cycle driven by solar photovoltaic: The topic also deals with an experiment related to a vehicle integrated with absorption refrigeration system. Its results and the scopes are also discussed in the topic. High pressure ammonia vapor enters the condenser, where it transfers heat to the neighborhood. Liquid ammonia leaves the condenser and passes through an expansion valve, reaching the evaporator pressure.
The refrigerant then enters the evaporator, where it receives heat from the cold source, turning into low pressure vapor. In the sequence, ammonia vapor enters the absorber, where a weak solution of water and low concentration ammonia absorbs the refrigerant and, at the same time, transfers heat to the neighborhood.
The solution has now a high ammonia concentration, and is pumped to the vapor generator, where it receives heat from an external source. The ammonia in the solution then evaporates, separating from water and flowing to the condenser to start a new cycle. A weak water — ammonia solution leaves the vapor generator and enters the absorber to absorb ammonia vapor from the evaporator.
A heat exchanger between the absorber and the vapor generator transfers heat from the weak solution leaving the vapor generator to the high ammonia concentration solution going into the vapor generator.
Currently, he is working in the sheet metal industry as a designer. Additionally, he has interested in Product Design, Animation, and Project design. He also likes to write articles related to the mechanical engineering field and tries to motivate other mechanical engineering students by his innovative project ideas, design, models and videos.
Your email address will not be published. Save my name and email in this browser for the next time I comment. Precise temperature control. It occupies less space. Eco friendly. Noise less operation. Low cost and high effectiveness. Design is very simple. Disadvantages COP is less as compared to conventional refrigeration system.
In rainy season it cannot be possible to charge battery from solar. It also depends on climatic conditions. Applications To keep medicines in rural area Hospitals.
Small scale industries Conclusion Solar power nowadays is playing a major role in meeting the energy requirements of our country.
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