International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020
p-ISSN: 2395-0072
www.irjet.net
Improving the Heat Exchanger’s Overall Heat Transfer Co-efficient with Nanofluids Aniketh D1, Sumedh M2 12PG
Scholar, Dept. of Mechatronics Engineering, JNTUH College of Engineering Hyderabad, Telangana, India.
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Abstract - An assortment of mechanical procedures involve the exchange of warmth vitality. The upgrade of warming or cooling in a modern procedure may make a sparing in vitality, decrease process time, raise warm evaluating and stretch the life of hardware. There are a few techniques to improve the warmth move productivity. Warmth exchangers are gadgets that encourage heat move between two liquids while shielding them from blending. Warmth move in a warmth exchanger normally includes convection in every liquid and conduction through the divider isolating the two liquids. While examining heat move rate, it is advantageous to work with by and large warmth move coefficient ‘U’ that represents the commitment of every one of these consequences for heat move. One of the techniques which show evident outcomes is utilization of Nano-liquids instead of the ordinary warmth move liquids (HTFs). Key Words: Assortment, Vitality, Convection, Conduction, Evident, Utilization
1. INTRODUCTION To improve the warmth transport properties of liquids, gigantic exercises are being completed. It is notable that numerous strong metallic and non-metallic materials have a lot higher warm conductivities than typical HTFs. Along these lines, it is a creative thought, attempting to upgrade the warm conductivity by including strong particles into HTFs. In any case, huge strong particles cause irksome issues, for example, scraped spot of the surface, obstructing the miniaturized scale channels, dissolving the pipeline. The circumstance became productive when fabricating nano scale particles was raised and executed effectively. Here are 5 proven industry practices to boost heat exchanger performance and maintain process efficiency: 1. Online and Offline Cleaning 2. Maintaining Heat Exchanger 3. Periodic Cleaning 4. Cleaning the PHE Manually 5. Minimizing the Fouling Factor 6. Analyzing and Addressing Issues in Heat Exchanger Efficiency [1].
1.1 Working concept of heat exchangers •
Heat exchangers are devices that facilitate heat transfer between two fluids while keeping them from mixing.
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Heat transfer in a heat exchanger usually involves convection in each fluid and conduction through the wall separating the two fluids.
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While analyzing heat transfer rate, it is convenient to work with overall heat transfer coefficient U that accounts for the contribution of all these effects on heat transfer [3].
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