Effect of Volume Concentration on Direct Absorption Solar Collector in Laminar and Turbulent Flow Using CuO-H2O Nanofluids

  Lalit Jyani,  Manpreet Singh,  Shailendra Bohra

Abstract – It is very important to have solar collector which can have maximum efficiency with minimum radiative and convection losses .To construct such collector it is very important to have such working fluids on which the collector works which have better thermo physical properties then other conventional fluids. The various thermo physical properties on which collector efficiency depends are thermal conductivity, specific heat, density, viscosity etc. The special new class fluids used here are known as nanofluids which have better properties as mentioned above compared to conventional fluids .In present work a direct absorption solar collector which are using a glass plate on which film of nanofluids(CUO-H2O) is formed .The idea is taken from previous studies in which we are using single plate[11] .The volume concentration used here are.010%, .006% and .003%.The efficiency of collector is calculated using fixed mass flow rate as 3000ml/hr glass plate collectors. It has been found that an efficiency of 2-3% is increased when using nanofluid in case of higher flow rate due to less radiative and convective losses compared to lower flow rate and 3% efficiency is improved in case of turbulent flow as compared to laminar flow because in case of laminar flow temperature difference is more and radiative and convective losses are higher compared to turbulent flow. Comparison of collector efficiency different volume concentration is done.ASHRAE standard has been followed while performing the experiment.

Keywords- Keywords-nanofluids, efficiency, volume concentration, flow rate etc.

Unique Identification Number - IJEDR1704041
Page Number(s) - 268-272
Pubished in - Volume 5 | Issue 4 | October 2017
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Lalit Jyani,  Manpreet Singh,  Shailendra Bohra,   "Effect of Volume Concentration on Direct Absorption Solar Collector in Laminar and Turbulent Flow Using CuO-H2O Nanofluids", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.5, Issue 4, pp.268-272, October 2017, Available at :http://www.ijedr.org/papers/IJEDR1704041.pdf