conductive convective radiative and evaporative heat transfer of human body

... described as near-field radiative transfer In the context of energy exchange between molecules and their surroundings, this mode of transfer is often called non -radiative transfer This term is ... kinetic theory of gases As part of a book on micro and nanoscale heat transfer, the aims are twofold: – To introduce the necessary concepts and tools, and in particular, the idea of a distribution ... mechanisms of heat transfer For each one, we review the main ideas used in the traditional macroscopic description of heat transfer This is followed by a discussion of the length and time scales...

Ngày tải lên: 04/06/2014, 15:03

... radiative transfer and properties have become an active research area, and a special issue of the Journal of Heat Transfer is devoted to this exciting area.21 1.3.3 Microfabrication and Nanofabrication ... graduate-level thermodynamics (Chaps and 3), convection heat transfer (Chap 4), conduction heat transfer (Chaps and 7), and radiation heat transfer (Chaps and 9) Selected materials may also be ... and P E Phelan, “Brownian-motion-based convective -conductive model for the effective thermal conductivity of nanofluids,” J Heat Transfer, 128, 588–595, 2006 40 G Chen and A Shakouri, Heat transfer...

Ngày tải lên: 04/06/2014, 15:15

... design of wide range of industrial processes and devices This book includes 18 advanced and revised contributions, and it covers mainly (1) heat convection, (2) heat conduction, and (3) heat transfer ... section includes heat transfer analysis of reinforced concrete beam, modeling of heat transfer and phase transformations, boundary conditionssurface heat flux and temperature, simulation of phase change ... flow and the onset of instability, and, hence, the temperatures levelled off and even dropped as a result of heat transfer enhancement This outcome could also be observed from the variation of...

Ngày tải lên: 19/06/2014, 10:20

... 104, and 105 on Heater and Figure (15) depicts the effect of the Reynolds number on heat transfer for Gr = 103, 104, and 105, Re = 1, 10, 100, and 1000, and finally, d = 1, 2, 3, in the pair of heat ... weak heat transfer and a period with intensive heat transfer for each aspect ratio The weak heat transfer corresponds to the day time condition when the heat transfer is dominated by conduction and ... is more evident when Re =1 and γ = 45° and 90° 24 Convection and Conduction Heat Transfer 30 30 Re = 100, d = Re = 10, d = 25 20 20 NU NU Heater Heater 25 Heater Heater 15 10 15 10 5 10 12 14...

Ngày tải lên: 19/06/2014, 10:20

... strength of free and forced convection The Richardson number is the ratio of Grashof number and the square of the Reynolds number, which represents the ratio of buoyancy force and inertia force, and ... maximum heat transfer To study the variation of average heat transfer in terms of Nusselt number with the variation of Richardson number of the optimum trapezoidal cavity To study the variation of ... driven cavity and investigated the effect of Prandtl number on the flow and heat transfer process They found that the effects of buoyancy are more pronounced for higher values of Prandtl number...

Ngày tải lên: 19/06/2014, 10:20

... Journal of Heat and Mass Transfer, Vol 42, pp 2571-2581 Moschandreau, T & Zamir, M (1997) Heat transfer in a tube with pulsating flow and constant heat flux, International Journal of Heat and Mass Transfer, ... analysis of heat transfer in laminar pulsating flow, International Journal of Heat and Mass Transfer, vol 45, pp 1767-178 Lee, B.S.; Kang, L.S & Lim, H.C (1999) Chaotic mixing and mass transfer ... of the convective heat transfer by means of the Nusselt number, in stationary regime One can clearly see that the vortex has a negative influence on the heat transfer on almost the totality of...

Ngày tải lên: 19/06/2014, 10:20

... Prasad, V & Kulacky, F A (1984), Convective heat transfer in a rectangular porous cavity Effect of aspect ratio on flow structure and heat transfer, ASME Journal of Heat Transfer, Vol 106, pp 158-65 ... terms of the orientation of an external magnetic field Finally the effect of combined radiation and a magnetic field on the convective flow and heat transfer characteristics of an electrically conducting ... temperature at the previous iteration, the wall conductive heat fluxes are estimated Then, these values of the wall conductive heat flux and the radiative wall heat flux are used to update the non-prescribed...

Ngày tải lên: 19/06/2014, 10:20

... them, on the law of change and the values of the temperature and humidity of the heating or cooling medium, etc (Deliiski, 2004, 2009) The correct and effective control of the heating and cooling ... method for radiation heat transfer J Thermophysics and Heat Transfer, Vol.8, pp 419-425 146 Convection and Conduction Heat Transfer Chamkha, A J (2000) Thermal radiation and buoyancy effects ... latent heat in the so-called effective specific heat capacity ce (Chudinov, 1966), which is equal to the sum of the own specific heat capacity of the body с and the specific heat capacity of the...

Ngày tải lên: 19/06/2014, 10:20

... Nasrallah, S., Perre, P (1988) Detailed Study of a Model of Heat and Mass Transfer During Convective Drying of Porous Media, International Journal of Heat and Mass Transfer, Volume 31, № 5, pp 297-310 ... Mathematical Model of Heat and Mass Transfer During Convective Drying of Porous Materials Heat Transfer – Asian Research, Volume 28 № 5, pp 337-351 Non-Linear Radiative -Conductive Heat Transfer in a Heterogeneous ... standard approximation of the Non-Linear Radiative -Conductive Heat Transfer in a Heterogeneous Heat Transfer in a Heterogeneous Gray Plane-Parallel Participating Medium Non-Linear Radiative- Conductive...

Ngày tải lên: 19/06/2014, 10:20

... detailed knowledge of the temperature distribution and therefore of thermal conductivity of the GDLs is essential for a proper understanding and the optimization of not only heat transfer in the ... Mechanics and Analysis of Composite Materials, Elsevier Wang M., Pan N (2008) Modeling and prediction of the effective thermal conductivity of random open-cell porous foams, International Journal of Heat ... Optimization of the Effective Thermal Conductivity of a Composite A B C D E F Fig Resultant arrangement for five and six fibres 209 210 Convection and Conduction Heat Transfer 4.1 Optimization of three and...

Ngày tải lên: 19/06/2014, 10:20

... Kf of soil particles in the form of oblate (1 and 1’) and prolate (2 and 2’) ellipsoids of revolution versus parameter с/а for different directions: and – along the axis of revolution; 1’ and ... of theoretical approach is needed to understand heat transfer processes and to analyze experimental data on thermal properties of soils and rocks from a common point of view 254 Convection and ... of the volume fractions of soil solids ms and unfrozen water muw where ε = ε= ms and σ = m s + m uw m s + m uw Considering the relation of ms and muw to the saturation moisture content Wsat and...

Ngày tải lên: 19/06/2014, 10:20

... Finite-Element simulation of cooling of realistic 3-D human head and neck ASME Trans J of Biomechanical Eng., 125, 6, p 832-840 276 Convection and Conduction Heat Transfer Devashish, S and Roemer, R.B ... 35 Anderson, D.A.; Tannehill, J.C.; Pletcher, R.H (1984) Computational Fluid Mechanics and Heat Transfer, McGraw-Hill, New York Baish, J.W (1994) Formulation of a statistical model of heat transfer ... bladder, and lung, and for melanoma Whether the combination of radiation and heat is given in a simultaneous or sequential schedule, the thermal enhancement will be dependent on the heating time and...

Ngày tải lên: 19/06/2014, 10:20

... parameters sets and build-up strategies Modelling of Heat Transfer and PhaseTransfer and Phase Transformations in the Rapid Manufacturing of Titanium Components Modelling of Heat Transformations ... electrons Heat Transfer Analysis of Reinforced Concrete Beams Reinforced with GFRP Bars 301 and atoms On the other hand, convection transfers the heat from the source to the RC beam via cycles of heating ... fluid flow and conjugate heat transfer, Journal of heat transfer 129: 124–136 Driscoll, T & Fornberg, B (2002) Interpolation in the limit of increasingly flat radial basis functions, Computers and mathematics...

Ngày tải lên: 19/06/2014, 10:20

... 1991) The Young’s moduli of α, β and α are 117, 82 and 114 GPa respectively and the Vickers hardnesses are 320, 140 and 350 HV Modelling of Heat Transfer and PhaseTransfer and Phase Transformations ... composition As a result of the combined effect of these two alloying elements, the equilibrium microstructure of Ti-6Al-4V consists of Modelling of Heat Transfer and PhaseTransfer and Phase Transformations ... Modelling of Heat Transfer and PhaseTransfer and Phase Transformations in the Rapid Manufacturing of Titanium Components Modelling of Heat Transformations in the Rapid Manufacturing of Titanium...

Ngày tải lên: 19/06/2014, 10:20

... accumulation of heat are water and gravel 352 Convection and Conduction Heat Transfer The weight and specific heat capacity of these materials indicate the accumulable quantity of heat This quantity ... description and solution of heat transfer and phase change We analyze the problem of heat transfer in a 1D body during the melting and freezing process with an external heat flux or heat convection, ... measurement and the simulation 3:32 3:51 368 Convection and Conduction Heat Transfer 3.3 Results of the analysis related to accumulators and coolers The part of the analysis of one layer of a heat accumulator...

Ngày tải lên: 19/06/2014, 10:20

... relationship, Scheil´s equation and the equation proposed by Radovic and Lalovic (Radovic & Lalovic, 2005) As result, the transfer of heat, thermal gradient, flow of heat in the system and the cooling curves ... Convection and Conduction Heat T d Transfer (a) (b) Fig The cast part and mold in (a) three dimensiona and (b) bi dime g t al ensional Fig (a) Enthalpy and phase diagra of Cu-5 wt %Z alloy and (b) ... interaction of a number of processes: volume change, nucleation and growth of the solid phase, diffusion of dissolved species, and the interaction of interphase surfaces Although some of these individual...

Ngày tải lên: 19/06/2014, 10:20

... relationship, Scheil´s equation and the equation proposed by Radovic and Lalovic (Radovic & Lalovic, 2005) As result, the transfer of heat, thermal gradient, flow of heat in the system and the cooling curves ... Convection and Conduction Heat T d Transfer (a) (b) Fig The cast part and mold in (a) three dimensiona and (b) bi dime g t al ensional Fig (a) Enthalpy and phase diagra of Cu-5 wt %Z alloy and (b) ... interaction of a number of processes: volume change, nucleation and growth of the solid phase, diffusion of dissolved species, and the interaction of interphase surfaces Although some of these individual...

Ngày tải lên: 21/06/2014, 01:20

... design of wide range of industrial processes and devices This book includes 18 advanced and revised contributions, and it covers mainly (1) heat convection, (2) heat conduction, and (3) heat transfer ... section includes heat transfer analysis of reinforced concrete beam, modeling of heat transfer and phase transformations, boundary conditionssurface heat flux and temperature, simulation of phase change ... flow and the onset of instability, and, hence, the temperatures levelled off and even dropped as a result of heat transfer enhancement This outcome could also be observed from the variation of...

Ngày tải lên: 21/06/2014, 01:20

... strength of free and forced convection The Richardson number is the ratio of Grashof number and the square of the Reynolds number, which represents the ratio of buoyancy force and inertia force, and ... maximum heat transfer To study the variation of average heat transfer in terms of Nusselt number with the variation of Richardson number of the optimum trapezoidal cavity To study the variation of ... driven cavity and investigated the effect of Prandtl number on the flow and heat transfer process They found that the effects of buoyancy are more pronounced for higher values of Prandtl number...

Ngày tải lên: 21/06/2014, 01:20

... Journal of Heat and Mass Transfer, Vol 42, pp 2571-2581 Moschandreau, T & Zamir, M (1997) Heat transfer in a tube with pulsating flow and constant heat flux, International Journal of Heat and Mass Transfer, ... analysis of heat transfer in laminar pulsating flow, International Journal of Heat and Mass Transfer, vol 45, pp 1767-178 Lee, B.S.; Kang, L.S & Lim, H.C (1999) Chaotic mixing and mass transfer ... of the convective heat transfer by means of the Nusselt number, in stationary regime One can clearly see that the vortex has a negative influence on the heat transfer on almost the totality of...

Ngày tải lên: 21/06/2014, 01:20