Results 131 to 140 of about 473 (176)
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Wet-dry thermohydraulic performance comparison on fin-and-tube geometries
Applied Thermal Engineering, 2022Arturo Morales-Fuentes +1 more
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Thermohydraulic performance of a novel curved serpentine coil
Physics of Fluids, 2020Conventional coil designs, such as helical and flat serpentine (FS) coils, are commonly employed for heat transfer applications due to their higher heat transfer performance and compactness. In the last few decades, chaotic coil designs have attracted the attention of a few researchers due to their superior thermohydraulic performance.
Desireddy Shashidhar Reddy +2 more
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Atomic Energy, 2002
A methodology is developed for performing statistical analysis of the uncertainties in thermohydraulic calculations on the basis of the idea of the GRS method. The coefficients, which are to be varied, in the semiempirical closure relations are determined for the RELAP5/MOD3.2 and MELCOR 1.8.3 codes; their distribution functions and variation ranges ...
D. A. Afremov +3 more
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A methodology is developed for performing statistical analysis of the uncertainties in thermohydraulic calculations on the basis of the idea of the GRS method. The coefficients, which are to be varied, in the semiempirical closure relations are determined for the RELAP5/MOD3.2 and MELCOR 1.8.3 codes; their distribution functions and variation ranges ...
D. A. Afremov +3 more
openaire +1 more source
International Communications in Heat and Mass Transfer, 2020
Abstract Three-dimensional heat transfer of nanofluids in microchannels with hydrophilic, hydrophobic and, superhydrophobic surfaces were studied using numerical simulation. For this purpose, Navier Stokes and energy equations were solved using the finite volume method. The flow Reynolds numbers were in the range of 40–500. Water/Al2O3 and Water/TiO2
Ali Heidarian +2 more
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Abstract Three-dimensional heat transfer of nanofluids in microchannels with hydrophilic, hydrophobic and, superhydrophobic surfaces were studied using numerical simulation. For this purpose, Navier Stokes and energy equations were solved using the finite volume method. The flow Reynolds numbers were in the range of 40–500. Water/Al2O3 and Water/TiO2
Ali Heidarian +2 more
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Internal Groove Influenced Thermohydraulic Performance on an Air-Channel
Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics, 2018Internal fins, protrusions, and porous foams enhance the local convective heat transfer at the channel walls in the heat exchangers, electronic chips for cooling, and solar panels for cooling and heating by promoting the local turbulence in flow. However, the fluid pumping power in the channel suffers due to the blockage and high pressure drop caused ...
Gazi I. Mahmood, Aasa Samson
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Thermohydraulic performance of packed-bed solar air heaters
Energy Conversion and Management, 1996Abstract This work is aimed at experimentally investigating the thermohydraulic performance characteristics of packed-bed solar air heaters. The thermohydraulic performance parameter called “effective efficiency” has been employed to express the net useful thermal energy gain, taking into account the equivalent thermal energy required to produce the ...
A. Ahmad, J.S. Saini, H.K. Varma
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Optimising the thermohydraulic performance of rough surfaces
International Journal of Heat and Mass Transfer, 1975Abstract The parameters which control the momentum- and heat-transfer performance of a rough surface in a uniform channel flow are presented in a novel way. A new efficiency parameter is denned for optimising this performance. Using a recently developed analysis a wide range of rough surfaces are investigated and design charts presented.
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Thermohydraulic Performance Optimization of Automobile Radiators Using Statistical Approaches
Journal of Thermal Science and Engineering Applications, 2021Abstract Automobile radiator which is one of the vital components used for engine cooling in vehicles is expected to provide higher thermal performance without changing the exterior dimensions of the radiator with the development of engine technology.
Canbolat, Ahmet Serhan +2 more
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Thermohydraulic Performance and Flow Structures of Diamond Pyramid Arrays
Volume 13: Heat Transfer: General Interest / Additive Manufacturing Impacts on Heat Transfer; Wind EnergyAbstract Surface features are a common heat transfer enhancement method used in a myriad of applications including gas turbines and heat exchangers. One such style of surface features is diamond pyramids, which offer significant heat transfer augmentation for moderate increases in overall pressure losses.
Thomas M. Corbett, Karen A. Thole
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Thermohydraulic Performance of Packed Bed Solar Air Heater
2020An experimental investigation is carried out as per ASHRAE standards on a high porosity packed bed solar air heater. Packed bed is generally used to enhance the heat transfer area and also for storage of thermal energy. The work covers a particular range of design and operating parameters. Design parameters include the colour of packing material (black
Parag Jyoti Bezbaruah +3 more
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