Ptinciples of heat transfer
Ptinciples of heat transfer
... Basic Modes of Heat Transfer 2 1.1 The Relation of Heat Transfer to Thermodynamics 3 1.2 Dimensions and Units 7 1.3 Heat Conduction 9 1.4 Convection 17 1.5 Radiation 21 1.6 Combined Heat Transfer ... atm partial pressure of component A P wetted perimeter m ft q rate of heat flow; q k , rate of heat flow by W Btu/h conduction; q r , rate of heat flow by radiatio...
Ngày tải lên: 08/04/2014, 11:00
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... value of turbulent intensity is observed at the relative gap width of 1.0 which is in the line of heat transfer measurements. These results of PIV showed good agreement between the heat transfer ... Investigation of heat transfer and friction for rib- roughened surfaces, Int. Journal of Heat & Mass Transfer 1978; 21: 1143-1156. [4] Webb R.L., Eckert E.R.G. and...
Ngày tải lên: 05/09/2013, 16:10
Experimental and numerical investigation of heat transferand phase change phenomena during excimer laser interactionwith nickel
... "m −0 K −0 #Ł L lv latent heat of evaporation ðJ kg −0 Ł L sl latent heat of fusion ðJ kg −0 Ł M molar weight ðkg kmol −0 Ł n ¼ complex index of refraction n\ k real and imaginary part of the complex index of refraction p ... instead of a Gaussian distribution commonly seen for other types of laser[ The size of the laser spot on the target surface is several millimete...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... surface of the target by scaling velocities of atoms in cells on the top surface, and the same amount of heat flux is dissipated from the bottom of the target by scaling velocities of atoms ... the distribution of number density of atoms in space at different times, which demonstrates the variation of solid structure during laser heating. At the early stage of laser...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... surface of the target by scaling velocities of atoms in cells on the top surface, and the same amount of heat flux is dissipated from the bottom of the target by scaling velocities of atoms ... the distribution of number density of atoms in space at different times, which demonstrates the variation of solid structure during laser heating. At the early stage of laser...
Ngày tải lên: 06/05/2014, 08:57
molecular dynamics simulation of heat transfer and phase change during
... surface of the target by scaling velocities of atoms in cells on the top surface, and the same amount of heat flux is dissipated from the bottom of the target by scaling velocities of atoms ... the distribution of number density of atoms in space at different times, which demonstrates the variation of solid structure during laser heating. At the early stage of laser...
Ngày tải lên: 06/05/2014, 08:59
MÔ HìNH HOá QUá TRìNH TRAO ĐổI NHIệT ẩM TRONG MáY ấP TRứNG GIA CầM Modeling of heat and mass transfer in chicken egg incubators
... it can be expressed in terms of mathematical equations by modeling of the process. The present paper introduces a method of modeling the process of heat and mass transfer in the space containing ... Modeling of heat and mass transfer in chicken egg incubators Nguyễn Văn Đờng 1 SUMMARY The relationships between temperature and humidity of the airflow, temperature and...
Ngày tải lên: 28/08/2013, 08:31
Effect of periodic suction on three dimensional flow and heat transfer past a vertical porous plate embedded in a porous medium
... 4.4 Rate of heat transfer The rate of heat transfer at the wall i.e. the heat flux in terms of Nusselt number N u for different values of α and K p are entered in Table 2. The heat flux ... z -components of skin friction at the wall become () zcosmBBABABm x π−−−−=τ 542311 , (50) zsin AA 21 z π π εα τ −= . (51) 3.2 Rate of heat transfer The rate of...
Ngày tải lên: 05/09/2013, 14:58
Cooling load optimization of an irreversible refrigerator with combined heat transfer
... expansion of a heated working fluid with convective radiative heat transfer [7] and to investigate the effects of variable specific heat ratio of working fluid on the performance of an irreversible ... exergoeconomic performance of a Newtonian heat transfer law system generalized irreversible combined heat pump with irreversibility of finite-rate heat transfer,...
Ngày tải lên: 05/09/2013, 15:28
Ecological performance of a generalized irreversible Carnot heat engine with complex heat transfer law
... overall heat transfer coefficient and 1 F is the heat- transfer surface area of the high- temperature-side heat exchanger , β is the overall heat transfer coefficient and 2 F is the heat- transfer ... deriving force of H HC TT− , LC Q is the rate of heat flow from working fluid to the heat sink due to the deriving force of LCL TT− , H Q is rate of...
Ngày tải lên: 05/09/2013, 15:28
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