International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395 -0056
Volume: 04 Issue: 02 | Feb -2017
p-ISSN: 2395-0072
www.irjet.net
Modification of Generator In Electrolux Refrigerator Nikunj Valand1, Mithil Kachhiya2, Rajdeepsinh Thakor3 1 Bachelor
of Engineering Student, Dept. Of Mechanical engineering, VIER, Gujarat, India. Bachelor of Engineering Student, Dept. Of Mechanical engineering, VIER, Gujarat, India. 3 Bachelor of Engineering Student, Dept. Of Mechanical engineering, VIER, Gujarat, India.
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Abstract - Over last few years, the energy is the strength of development of science and technology along with the economic development. In addition to men, machine, material and money, energy, is also the fifth factor of the production. The objective of this paper of the paper is to do modification in an Generator-Heat exchanger in an conventional vapour absorption refrigeration system by using the natural resources as the heat input in generator. So for that the conventional burner heated or electrically heated generator is replaced by solar collector which supplies the heat absorbed on it and heats the water passing from it. This water is passed in to the heat exchanger where mixture of liquid ammonia and water get heated and the vapour ammonia is generated which is supplied for further process. Other components like condenser, absorber, and evaporator etc and its process remain same.
Key Words: Generator- Heat exchanger, Vapour Absorption, Natural resources, Solar heating, Environment.
1.INTRODUCTION 1.
Solar energy is available in abundant form in a nature. The power from the sun is absorbed by the earth is approximately 1.9×10^11 MW which is larger compared to the energy used by the population by other sources on the earth. So, the solar energy can supply present and future needs of people continuously by proper use of it. This makes the solar energy the most promising of the unconventional source of energy. Along with this the solar energy has two more advantages first unlike fossil fuel and nuclear power it is an environmental clean source of energy. Second, it is free of cost and available in abundant form rather than in winter and monsoon season. The solar energy can reach each and every place of the earth where the people can live. However the main problem is that it is dilute source of energy.
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Figure 1: Basic principle of the solar powered system Flat plate collectors : Flat plate collectors is an insulated weather proofed box containing a dark absorber plate under one or more transparent covers. Where temperature below 90°C are adequate, as they are for space and service water heating flat plate collectors are convenient to use. They are made in rectangular from about 1.7 to 2.9 m² in area and are relatively simple to make. Parts of flat plate collectors: Cover plate: It is made up of glass tempered with a low iron content and 3.2-6.4 mm thick. The collector has 85% transmittance when this type of glass is used. Absorber plate: It is made up of copper because of its high conductivity .Moreover, it is corrosion resistant. These copper plates 0.05 mm thick with 1.25 cm tubes. Tubes are spaced 15cm apart, the efficiency is 97%.Also, black paint over copper plate is used which has absorptance= 0.85-0.9 and emmitance= 0.08-0.12. ISO 9001:2008 Certified Journal
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