Performance Analysis of Water Based Copper Oxide Nano Fluids in Heat Exchanger with Twisted Insert

Reddy, K. Ashok; Hanmanthu, Bhukya

doi:10.1088/1757-899x/330/1/012111

Cited by 2 publications

(2 citation statements)

References 7 publications

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“…have applied nanofluids to determine the amount of convective heat transfer and the behaviour of nanofluids in different circumstances as predicted. Most of these researchers used nanofluid sand mechanical methods such as twisted tapes [22][23][24][25], helical tubes [26][27][28], microfin tubes [29,30], and annulus tubes [31,32]. The results of these investigations showed that the convective heat transfer improves substantially when mechanical methods and nanofluids are applied.…”

Section: Rdms000854 15(1)2021mentioning

confidence: 99%

“…The results of these investigations showed that the convective heat transfer improves substantially when mechanical methods and nanofluids are applied. It can be seen that twisted tape is more effective than other mechanical methods due to intensified creation of vortex flow in the tube and the declination of the boundary layer [22][23][24][25]. Despite, a dramatic increase in pressure drops and Darcy friction factor, when it is used twisted tapes and nanofluid are observed.…”

Section: Rdms000854 15(1)2021mentioning

confidence: 99%

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Analysing the Behaviour of Copper Oxide-Thermal Oil on Forced Convection and Pressure Drop in Upward and Downward Flow in Plain and Microfin Tube

Agrawal

Hekmatipour

2021

RDMS

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The effects of using copper oxide-thermal oil on convective heat transfer and pressure drop in a downward flow in an inclined microfin tube are investigated experimentally in this research project. The flow regime and wall temperature are laminar and constant, respectively. The effects of nanofluid, Graetz number, Prandtl number, negative and positive inclination angles, on convective heat transfer augment moderately as nanoparticles mass concentration increases. Correlations are advisable to anticipate Nusselt number and Darcy friction factor in upward and downward single-phase flow in microfin tube under constant wall temperature and laminar flow in inclined plain and finned tubes. The maximum aberration is lower than 21% which is acceptable to predict experimental data. In this paper, we found that the heat ratio matches the pumping ratio. It turns out that, if the increment of pressure drop is more than heat transfer enhancement, it will not be appropriate to use CuO-thermal oil, negative inclination angles and microfin tube. The maximum FOM was 64%, which, was calculated with 1.5% nanoparticles mass concentration and inclination angle 60º at Prandtl number 349 in microfin tube.

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Section: Rdms000854 15(1)2021mentioning

confidence: 99%

Section: Rdms000854 15(1)2021mentioning

confidence: 99%

Analysing the Behaviour of Copper Oxide-Thermal Oil on Forced Convection and Pressure Drop in Upward and Downward Flow in Plain and Microfin Tube

Agrawal

Hekmatipour

2021

RDMS

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Analysis of Nano-Fluid and Water Using CFD for Heat Exchanger

Mujawar¹,

Nade²,

Kaware³

et al. 2022

IJARSCT

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Heat exchangers are a device used to transfer heat between two or more fluids. Cold water is commonly used in heat exchangers. But the heat transfer rate of the heat exchangers using water is less. Our aim is to improve the heat transfer rate. So, instead of cold water, we are using Nano fluid along with water. Nano fluids have improved thermal properties and heat transfer rate. Nano fluid contains metallic or non-metallic nano powder with a size of 100 nm in base fluid. We designed a CATIA model and imported the geometry in ANSYS software. After importing, we completed meshing process. Next, in setup, we selected material for shell and tube. Then we selected Nano fluid as the heat transferring medium. We provided boundary conditions to the heat exchanger. This gave us the result. From the result, we calculated the efficiencies of heat exchanger using water, aluminium oxide and copper oxide respectively. By comparing, we observed that the efficiency of copper oxide is greater than aluminium oxide and the efficiency of aluminium oxide is greater than cold water. Thus, we conclude that Nano fluids increase the efficiency of heat exchanger.

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Performance Analysis of Water Based Copper Oxide Nano Fluids in Heat Exchanger with Twisted Insert

Cited by 2 publications

References 7 publications

Analysing the Behaviour of Copper Oxide-Thermal Oil on Forced Convection and Pressure Drop in Upward and Downward Flow in Plain and Microfin Tube

Analysing the Behaviour of Copper Oxide-Thermal Oil on Forced Convection and Pressure Drop in Upward and Downward Flow in Plain and Microfin Tube

Analysis of Nano-Fluid and Water Using CFD for Heat Exchanger

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