Parabolic Through Solar Water Heater

A solar collector is a device that transforms solar radiation from the Sun into heat, which is then transferred to the working fluid. The use of solar collectors reduces energy costs over time as they do not use fossil fuels or electricity like that in traditional water heating. As well as in domestic settings, a large number of these collectors can be combined in an array and used to generate electricity in solar thermal power plants. There are several different types of solar collector designs that use the energy of the sun to heat working fluid. Each design whether a basic blackened flat panel collector or a more advanced evacuated tube collector all have their advantages and disadvantages. Parabolic trough reflector provides a better alternative way to generate higher temperatures with better efficiency. The parabolic trough reflector is a solar energy collector designed to capture the sun’s direct solar radiation over a large surface area and focus or “concentrate it” onto a small focal point area, increasing the solar energy received by more than a factor of two. Connecting parabolic troughs to form collector fields requires large areas of land for the installation. Also, parabolic troughs have a small absorber area and have efficiencies of around 12% with a smaller angle of view. Convective heat transfer can be enhanced passively by enhancing the thermal conductivity of the fluid. Modern nanotechnology provides new possibilities to enhance heat transfer performance compared to pure liquids. Nanofluids are engineered colloidal suspension of Nano meter-sized particles called Nanoparticles in a base fluid. Metals, oxides, carbides, or carbon nanotubes are the general precursors for nanoparticles. Common base fluids include water, ethylene glycol, and oil. Nanofluids exhibit enhanced thermal conductivity due to large area-to-volume ratio and high turbulence properties. Due to their novel properties nanofluids find their applications in many fields of heat t