Abstract
Solar energy is an alternative source of renewable energy. Sultanate of Oman government showed initiation on utilization of solar energy for domestic and industrial applications. Fresnel lens is one of the methods to collect maximum energy by gathering heat of the sun in the concentrated form (using solar collectors). Earlier research work discloses that Fresnel lens gave better result in terms of power output and produces lower heat loss as compared to linear –parabolic solar collectors. In this work, development of a proto Fresnel lens power house was made to generate electricity. The focused heat from Fresnel lens was used to heat the molten salt in a heat exchanger to produce the steam. The generated steam was used to rotate the steam engine coupled to a generator. In the current work, a maximum power of 30 W was produced. In addition, comparative study was carried out regarding solar salts and heat exchanger materials to understand the Fresnel powerhouse performance. Overall the present study gave valuable information regarding usage of Fresnel lens for electricity generation in Oman.
Highlights
Renewable energy is a type of energy which can be acquired from natural resources that can be constantly recharged
Oman government has initiated on effective utilization of solar energy in residential and industrial areas
The solar heat is transferred to the heat exchanger from the focal point of Fresnel lens and it melts the molten salt and transfers heat to the water
Summary
Renewable energy is a type of energy which can be acquired from natural resources that can be constantly recharged. Solar collector is used to collect the solar heat and there are different types of collectors, namely power tower, dish sterling, parabolic trough and Fresnel reflector. These approaches were executed in different parts of the world and generated energy in terms of MW. Facao and Oliveira (2010) studied the replica of a linier Fresnel solar collector and work demonstrated the optical and thermal performances of a new trapezoidal cavity for a small linear Fresnel receiver. In this work a prototype Fresnel lens powerhouse was developed and its performance with regard to solar salts and heat exchanger materials was studied. The outcome of the present work could be useful to implement large scale Fresnel power house in Sultanate of Oman to overcome the energy crisis
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