[PDF] Top 20 Flow and heat transfer enhancement around staggered tubes using rectangular vortex generators

... tube heat exchangers are usually used compact heat exchanger in various fields such as chemical industry, power generation, air conditioning and ...the enhancement of heat transfer in ... See full document

... thermal enhancement ratio significantly increases with presence of vortex generators as compared with plane ...each vortex generator, it is decreased as Reynolds number increase ...secondary ... See full document

... exhaust vortex generator heat exchanger for optimizing its operating ...research vortex generator heat exchanger is used to recover exergy from the exhaust of diesel ...Twenty vortex ... See full document

... wavy-up rectangular winglet. He et al. (2013) carried out to investigate the heat transfer, pressure loss and thermal performance improvement in a fin-and-tube heat exchanger with ... See full document

... similar flow pattern as downstream is found in upstream case, but the rotational direction is in reverse (see ...rotating vortex flow with common-flow-down is found in upstream case when ... See full document

... the heat exchanger will support energy efficiency and economic ...improve heat transfer coefficient is to increase turbulent flow by using vortex ...of vortex ... See full document

... with rectangular cross-section on ob- structions, block heaters and curvilinear current limiters and examined the effect of heat transfer on experimentally and ...the heat movement within the ... See full document

... Cylindrical vortex generators placed transversely over the span of a micro-channel can enhance heat transfer performance, but adding full-span vortex generators incurs a ... See full document

... investigated heat transfer and pressure drop characteristics of a decaying swirl flow in a horizontal ...swirl flow was produced by the insertion of vortex generators with ... See full document

... the vortex structure and heat transfer enhancement mechanisms of turbulent flow over a staggered array of dimples in narrow ...the flow structures within the cavities and ... See full document

... winglet vortex generators in air cooled staggered array of rectangular electronic ...winglet vortex generators were placed in front of 3×5 (rows and columns) modules with 20° ... See full document

... Abstract: Heat exchangers are used in industrial process to recover heat between two process ...tube heat exchanger having tube with circumferential fins and without ...of rectangular ... See full document

... the heat transfer and fluid flow performance of various modified geometries such as micro-channels with grooves and ribs ...of vortex generators (VGs) on heat transfer and ... See full document

... delta-winglet vortex generators on the performance of a fin and tube ...in flow-up configuration, and placed directly upstream of the ...delta-winglet vortex generator and the overall ... See full document

... by using a solar air heater ...low heat transfer capability between absorber plate and flowing air in the ...Various enhancement techniques are employed to make the solar air heater ... See full document

... or rectangular ones of arranging ψ = 45˚ and 135˚ ...of generators is 18. These groups of vortex genera- tors were investigated, setting in the center of the gas ...of rectangular wings is ... See full document

... Numerical results of the forced convection heat transfer of turbulent flow had been calculated by applying the FV method. The SIMPLEC algorithm was applied for the pressure-velocity coupling of ... See full document

... the enhancement of heat transfer to the increased ther- mal dispersion resulting from the chaotic movements of nanoparticles, which accelerates the exchange of ...nanofluids heat ... See full document

... of heat transfer over surface of ...the flow. Heat transfer inside flow inside the duct can be enhanced by using passive surface modifications such as rib tabulators, ... See full document

... the heat transfer performance and pressure drop required in the system, the “ Figure of Merit” concept is introduced as a measure of the heat transferred per unit pumping power (see Equation 14 for ... See full document