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Y. Raja Sekhar

Researcher at VIT University

Publications -  23
Citations -  343

Y. Raja Sekhar is an academic researcher from VIT University. The author has contributed to research in topics: Heat transfer & Nanofluid. The author has an hindex of 6, co-authored 18 publications receiving 249 citations. Previous affiliations of Y. Raja Sekhar include Jawaharlal Nehru Technological University, Hyderabad.

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Study of viscosity and specific heat capacity characteristics of water-based Al2O3 nanofluids at low particle concentrations

TL;DR: In this article, the specific heat capacity and viscosity properties of water-based nanofluids containing alumina nanoparticles of 47nm average particle diameter at low concentrations are studied.
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Heat Transfer Enhancement with Al2O3 Nanofluids and Twisted Tapes in a Pipe for Solar Thermal Applications

TL;DR: In this article, convective heat transfer analysis for a horizontal circular pipe with fluid in mixed laminar flow range is performed using experimental simulation under constant heat flux boundary condition, and the variation of heat transfer coefficient and pressure drop in the pipe flow for water and water based Al2O3 nanofluids at different volume concentrations and twisted tapes are studied.

Evaluation of heat loss coefficients in solar flat plate collectors

TL;DR: In this paper, a flat plate collector is used for domestic hot-water, space heating/drying and for applications requiring fluid temperature less than 100 o C. The collector efficiency is dependent on the temperature of the plate which in turn depends on the nature of flow of fluid inside the tube, solar insolation, ambient temperature, top loss coefficient, the emissivity of plate and glass cover, slope, etc.
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Exergy Analysis of a Flat Plate Solar Collector with Grooved Absorber Tube Configuration using Aqueous ZnO-Ethylene Glycol

TL;DR: In this paper, the exergetic performance of a flat plate solar collector (FPSC) setup with ZnO-based ethylene glycol (EG)/water nanofluid as a working fluid has been evaluated against that of EG/water.
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New correlations for estimation of monthly average daily solar radiation on a horizontal surface using meteorological data

TL;DR: In this paper, the estimated values are compared with measured data and with other theoretical models in terms of mean percent errors calculated using recognised statistical criteria of MBE, MABE, MPE and RMSE.