Heat transfer
Characterization of halloysite water nanofluid for heat transfer applications
... One of the challenges in thermal applications is to fi nd a nano fl uid providing the best thermal conductivity to viscosity ratio thus increas- ing the ef fi ciency of heat transfer processes. Recently, ...
17
Assessment of experimental optical techniques for characterizing heat transfer using numerical simulations
... many heat exchange applications and other engineering fields in which flow detachment and reattachment occur (Dufresne, Dewals, Erpicum, Archambeau, & Pirotton, ...The heat transfer mechanism is ...
15
The effect of heat transfer laws and thermal conductances on the local stability of an endoreversible heat engine
... In a recent work [10], Santill´an et al studied the local stability of a CAN engine operating at maximum power, with equal conductances in both isothermal branches of the cycle. In this work, following the direction ...
10
Numerical simulation of radiation and conduction heat transfer in a particle laden area
... Simulations and experiments regarding the FPR were already done in the 1980s, mostly by Sandia National Laboratories. One of the reasons why the free-falling PR was proposed as an alternative to harness solar energy was ...
119
Natural and mixed convective heat transfer through horizontal openings in buildings
... of heat, air, moisture and pollutants through different zone of a ...the heat transfer through horizontal opening in natural convection regime and mixed convection ...interzonal heat exchange ...
133
Suggested method for heat transfer calculation during film condensation inside pipes with movable frontiers
... This paper provides a second evaluation, with the intention of formulating an improved model that is capable of predicting the mean coefficients of heat transfer during condensation inside tubes with any ...
6
Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm cryopreservation
... Sansiñena, M., M.V. Santos, N. Zaritzky y J. Chirife. 2011. Comparison of heat transfer in liquid and slush nitrogen by numerical simulation of cooling rates for French straws used for sperm ...
15
Thermal conductance and basal metabolic rate are part of a coordinated system for heat transfer regulation
... values have a clear interpretation from the Scholander – Irving heat transfer model. This may not be the case for inter- mediate and large animals, in which a circulatory separation between core and shell ...
7
Laminar free convection induced by a line heat source, and heat transfer from wires at small Grashof numbers
... These constants are used when calculating the free convection heat transfer from wires (or cylinders of non-circular shape) at small Grashof numbers. We find two regions in the flow field: an inner region, ...
29
TF 2241 Heat And Mass Transfer Mechanical Engineering Handbook pdf
... the heat transfer coefficient on that fluid side is relatively low) and consequently to increase the total rate of heat ...the heat transfer coefficient compared to that for a plain ...
288
Revista Ingeniería Investigación y Tecnología | Facultad de Ingeniería UNAM
... Juan Manuel Olivares-Ramírez. He obtained his bachelor´s degree in mechanical engineering from the Morelia Technological Institute (in Mexico), and his master´s degree in materials science from the same institution. His ...
9
How important are internal temperature gradients in french straws during freezing of bovine sperm in nitrogen vapor?
... mathematical heat transfer model previously developed to predict freezing times (phase change was considered) of semen/extender packaged in straw was extended to predict internal temperature gradients ...
9
Energy evaluation of R152a as drop in replacement for R134a in cascade refrigeration plants
... Main Heat transfer rates in the cascade refrigeration facility at ToL=-40 ºC and TkH=50 ...lower heat transfer ...the heat rejected at the HT condenser presents the greatest differences ...
46
Effect of different building materials on conjugate heat and mass transfer
... Conjugate heat transfer studies in closed cavities have many engineering applications, such as solar collectors, nuclear reactors, cooling of electronic systems, building design applications, ...the ...
10
Families of optimal thermodynamic solutions for combined cycle gas turbine (CCGT) power plants
... available heat transfer ...(i.e. transfer areas, power production, mass flow rates, temperatures and pressures) can vary ...available heat transfer ...
30
Modelamiento y Simulación de un sistema de refrigeración para paneles fotovoltaicos por convección forzada de agua
... the heat rates transferred into the tubes and the insulator. The heat rate that goes through the insulator has a nega- tive value of ...a heat transfer from the atmos-phere into the tubes and ...
175
Comparison of the levelized cost and thermoeconomic methodologies Cost allocation in a solar polygeneration plant to produce power, desalted water, cooling and process heat
... c heat transfer area, and ...process heat was assumed in order to meet the demand pro fi le in the mining in- dustry, which requires continuous operation and energy ...process heat units ...
15
Caracterización de procesos de infusión de resina mediante visión artificial / presentada por Ubaldo Pineda Castillo ; dirigida por [el] Dr Fernando Sánchez López [y el] Dr Nicolás Montés Sánchez
... using heat flow sensors of limited dimensions that are usually spatially distributed over the mould being ...the heat flow, as has been described in many papers in the literature or as is done by the DSC ...
261
Thermal food processing computation software
... Ball‟s formula method is a classical method used in the thermal processing industry, the basis and the precursor of a number of most recent methodologies. It has received a lot of attention, being reviewed, criticized, ...
6
Operations Management and Intelligent Buildings Technology
... and heat the buildings they ...of heat, which reduces temperature ...of heat through the roof, thereby reducing the cooling energy needed to reduce building interior ...less heat from inside ...
13