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Design and Fabrication of Highly Efficient Conical Collector with Thermal Energy Storage Unit in Solar Water Heating Application

Author(s):

Ritta Rajesh , NEHRU COLLEGEOF ENGINEERING AND RESEARCH CENTRE; Prof. D. K. Narayanan, Nehru College of Engineering and Research Centre

Keywords:

Conical Collector, Thermal energy Storage Unit, Controlling Unit

Abstract

Solar energy is a major renewable energy source with the potential to meet many of the challenges facing the world. There are many reasons to promote its share in the energy market. This power source is increasing in popularity because it is versatile with many benefits to people and the environment. Hence we could easily utilize this energy source in a better way with the help of a high efficient solar collector. In this system a conical collector is used for better heat entrapment. Since it has a conical shape it could provides better sunlight absorption and due to its configuration the tubes for water flow have been arranged in a spiral manner which gives water enough time to get heated by absorbing maximum amount of heat during its travel through the tubes. Yet another drawback of solar energy is its non-availability during off sunshine hours. Thermal energy storage materials could find a remedy to this problem. In this system as a thermal storage material PCM is used. PCM like paraffin wax could easily intensify the heat distribution in any of the solar based system . For the thermal storage purpose a three layered PCM tank comprises of a mild steel tank and a stainless steel tank is designed with copper tubes winded inside. In order to evaluate the performance of conical collector coupled with thermal storage unit they are used in solar water heating application. Hence the hot water from collector will flow through PCM tank and the phase change occurs to this thermal storage material. The thermal energy stored with in the phase change material is later be used during off sunshine hours. Using a microcontroller unit the temperature level is sensed and accordingly the valve is controlled in the solar water heater .The pump system in the water heater is also regulated using a switch with the help of a relay module. Hence the system performance will be more efficient. By using the same collector and thermal storage unit the system can be used in any of the solar based applications rather than water heating.

Other Details

Paper ID: IJSRDV5I40209
Published in: Volume : 5, Issue : 4
Publication Date: 01/07/2017
Page(s): 248-250

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