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The Rapid Depletion Of Conventional Energy Sources And Scarcity Of Fossil Fuels

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Abstract

The rapid depletion of conventional energy sources and scarcity of fossil fuels are the major energy concerns. The renewable energy such as solar powered energy can be harnessed by using solar flat plate collector. A solar flat plate collector collects heat by absorbing heat from solar radiation. The performance of solar flat plate collector mainly depends upon the characteristics of working fluid. Conventional solar flat plate collector uses water as heat transfer fluid but it gives lower thermal efficiency. Nanofluids have superior thermal and optical properties that can be used to increase heat transfer rate. So our aim is to design and develop solar flat plate collector using Nanofluid as heat transfer fluid. 1. Introduction

1.1. (a) Introduction - Flat Plate Collector
A solar thermal collector collects heat by absorbing heat from sunlight. A collector is a device for capturing solar radiation.
Flat plate collector consists of:
1) a dark flat-plate absorber,
2) a transparent cover that reduces heat losses,
3) a heat-transport fluid (air, antifreeze or water) to remove heat from the absorber, and
4) a heat insulating backing.
In water heat panels, fluid is usually circulated through tubing to transfer heat from the absorber to an insulated water tank. This may be achieved directly or through a heat exchanger.

1.1 (b) Introduction of Nanofluid
A Nanofluid is a fluid containing nanometer-sized particles, called Nanoparticles. These fluids are engineered

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