Performance index improvement of a double-pipe cooler with MgO/water-ethylene glycol (50:50) nano-suspension

作     者：H.Arya M.M.Sarafraz O.Pourmehran M.Arjomandi 

作者机构：Centre for Energy Resource EngineeringTechnical University of DenmarkDenmark School of Mechanical EngineeringUniversity of AdelaideSouth AustraliaAustralia 

出 版 物：《Propulsion and Power Research》 (推进与动力（英文）)

年 卷 期：2020年第9卷第1期

页      面：75-86页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：University of Adelaide 

主　　题：Forced convective heat transfer Particulate fouling Heat exchanger Fouling Nanofluid 

摘      要：A series of tests was conducted to unlock the potential application of MgO/water-EG(ethylene glycol)nanofluids(NF)in a double-pipe heat exchanger(HEX).The overall heat transfer coefficient(HTC),the inlet temperature of the working fluid,the fluid pressure drop(FPD),friction factor(FF)and the hydraulic performance index of the NF within the HEX were experimentally *** of nanoparticles(NPs)within the Hex was also studied and modelled using asymptotic particulate fouling *** showed that MgO NPs can enhance the HTC by 39%at Re=10500 and wt.%=0.3 in the turbulent ***,the presence of MgO NPs augmented the FF and the FPD *** former was enhanced 33.8%,while the latter was augmented by 37%both at wt.%=0.3 and at Reynolds number=*** also revealed that the formation of porous particulate fouling layer on the internal wall of the inner tube creates a fouling thermal resistance which changes asymptotically with ***,MgO/water-ethylene glycol shows a great potential to be used as a coolant within a HEX.