Heat transfer enhancement in a triangular duct using compound nanofluids and turbulators

Ahmed, Hamdi E. and Ahmed, Mirghani Ishak and Yusoff, Mohd Zamri (2015) Heat transfer enhancement in a triangular duct using compound nanofluids and turbulators. Applied Thermal Engineering, 91. pp. 191-201. ISSN 1359-4311

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Abstract

Numerical and experimental investigation is carried out to study the laminar heat transfer and fluid flow characteristics in an equilateral triangular duct using combined vortex generator and nanofluids. Two different types of nanoparticles "namely Al2O3 and SiO2" suspended in distilled water with two particles concentrations are successfully prepared and experimentally tested. Both numerical and experimental results show a good enhancement in heat transfer by using vortex generator with base fluid. A significant heat transfer enhancement is observed by using compound vortex generators and nanofluids accomplished with a moderate increase in the pressure drop. High gradient in wall temperatures is monitored when the water is replaced by nanofluid particularly at higher volume fraction. A small deviation has been seen between the present numerical and experimental results

Item Type:	Article (Journal)
Additional Information:	2426/49866
Uncontrolled Keywords:	Laminar heat transfer; Equilateral triangular duct; Nanofluids; Vortex generator
Subjects:	T Technology > T Technology (General) > T351 Mechanical drawing. Engineering graphics T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ181 Mechanical movements T Technology > TJ Mechanical engineering and machinery > TJ210.2 Mechanical devices and figures. Automata. Ingenious mechanism. Robots (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Mechanical Engineering
Depositing User:	professor mirghani ishag ahmed
Date Deposited:	20 May 2016 15:18
Last Modified:	05 Dec 2016 17:12
URI:	http://irep.iium.edu.my/id/eprint/49866

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