干旱区生态环境知识资源中心(Arid): Experimental study on the heat transfer performance and friction factor characteristics of Co3O4 and Al2O3 based H2O/(CH2OH)(2) nanofluids in a vehicle engine radiator

Arid

DOI	10.1016/j.icheatmasstransfer.2019.05.009
	Experimental study on the heat transfer performance and friction factor characteristics of Co3O4 and Al2O3 based H2O/(CH2OH)(2) nanofluids in a vehicle engine radiator
	Elsaid, Ashraf Mimi
通讯作者	Elsaid, Ashraf Mimi
来源期刊	INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
ISSN	0735-1933
EISSN	1879-0178
出版年	2019
卷号	108
英文摘要	In recent periods different categories of commercial products as coolants of the automobile radiators by different ratios of EG/water-based are manifested based on the climatic zones as tropical, arid, Mediterranean, temperate, continental, and polar. Nevertheless, little data are available to evaluate the thermal performance of the proposed fluids with different ratios of EG, so more studies are required to determine its impact on the heat transfer rate especially when mixed with nanomaterials. In this study, the performance characteristics of the vehicle radiator are experimentally carried out under the hot arid climate of Cairo-Egypt at relevant parameters leading to design optimization. This investigation is covered by different parameters such as nanoparticle concentrations, nanoparticle types, fluid type, fluid temperature, and mass flow rate. Two types of nanoparticles are examined, as (Al2O3) and cobalt oxide (Co3O4) at concentrations of 0.02, 0.05, 0.1, and 0.2%. The nanoparticles are dispersed into a base fluid to produce a mixture of nanofluid. The base fluids are prepared by considering three ratios of EG/water at 0:100%, 10:90%, and 20:80%. Experiments are accomplished in a pilot air duct with a constant air velocity of 0.6 m/s whilst the fluid mass flow rate is varied in the range 0.05-0.2 kg/s. A thermo-hydrodynamic performance index is presented to appraise the impact of Co3O4/(CH2OH)(2)-H2O and Al2O3/(CH2OH)(2)-H2O with particular reference to pure water. The results reveal that the cobalt oxide-based water exhibits high thermal performance than alumina. A higher value of the performance index is observed at a lower concentration ratio and a higher Reynolds number. The addition of EG decreases the Nusselt number and increases the pumping power in comparing with pure water. Correlations of Nusselt number, friction factor, and radiator effectiveness expressing the results are also derived.
英文关键词	Radiator Nanofluids Heat exchangers Al2O3 Co3O4 EG/water
类型	Article
语种	英语
国家	Egypt
收录类别	SCI-E
WOS记录号	WOS:000499732100001
WOS关键词	GLYCOL-BASED NANOFLUIDS ; TRANSFER ENHANCEMENT ; CAR RADIATOR ; THERMAL-CONDUCTIVITY ; TRANSFER COEFFICIENT ; PHYSICAL PROPERTIES ; FIN ; VISCOSITY ; WATER ; EXCHANGER
WOS类目	Thermodynamics ; Mechanics
WOS研究方向	Thermodynamics ; Mechanics
EI主题词	2019-11-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310647
作者单位	Helwan Univ, Fac Ind Educ, Dept Refrigerat & Air Conditioning Technol, RHVAC Technol, Cairo 11282, Egypt
推荐引用方式 GB/T 7714	Elsaid, Ashraf Mimi. Experimental study on the heat transfer performance and friction factor characteristics of Co3O4 and Al2O3 based H2O/(CH2OH)(2) nanofluids in a vehicle engine radiator[J],2019,108.
APA	Elsaid, Ashraf Mimi.(2019).Experimental study on the heat transfer performance and friction factor characteristics of Co3O4 and Al2O3 based H2O/(CH2OH)(2) nanofluids in a vehicle engine radiator.INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER,108.
MLA	Elsaid, Ashraf Mimi."Experimental study on the heat transfer performance and friction factor characteristics of Co3O4 and Al2O3 based H2O/(CH2OH)(2) nanofluids in a vehicle engine radiator".INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER 108(2019).

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