question about heat transfer and motor oil
Heat transfer and friction factor characteristics using continuous M shape ribs turbulators at different orientation on absorber plate solar air heater
Ngày tải lên: 05/09/2013, 15:28
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... of the 4th ISHMT-ASME and 15th National Conference on Heat and Mass transfer conference, Jan12-14, Pune, 2000. [23] Zhang, Y. M., Gu, W. Z. and Han, J. C., Heat transfer and friction in rectangular ... Performance of Solar air heater Proceedings of XVII National and VI ISHME/ASME Heat and Mass Transfer Conference, IGCAR, Kalpakkam India 2004; Jan. 05-07. [2] Han J. C. Heat transfer and friction in ... Journal of Heat Transfer, 106, 774-781, 1984 [3] Han J.C., Glicksman LR and Rosenow WM. Investigation of heat transfer and friction for rib- roughened surfaces, Int. Journal of Heat & Mass Transfer...
Ngày tải lên: 05/09/2013, 16:10
The Thermodynamics, Heat Transfer, and Fluid Flow Fundamentals Handbook
... THERMODYNAMICS, HEAT TRANSFER, AND FLUID FLOW Rev. 0 HT ABSTRACT The Thermodynamics, Heat Transfer, and Fluid Flow Fundamentals Handbook was developed to assist nuclear ... xiii HT-01 THERMODYNAMICS, HEAT TRANSFER, AND FLUID FLOW Rev. 0 HT OVERVIEW The Department of Energy Fundamentals Handbook entitled Thermodynamics, Heat Transfer, and Fluid Flow was prepared ... of mercury Rev. 0 Page 13 HT-01 ENERGY, WORK, AND HEAT Thermodynamics ENERGY, WORK, AND HEAT Heat and work are the two ways in which energy can be transferred across the boundary of a system....
Ngày tải lên: 22/10/2013, 10:15
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
... ENERGY, WORK, AND HEAT Another type of heat is called latent heat. Latent heat is the amount of heat added to or removed from a substance to produce a change in phase. When latent heat is added, ... latent heat. The first is the latent heat of fusion. This is the amount of heat added or removed to change phase between solid and liquid. The second type of latent heat is the latent heat of ... (Btu/lbm-°F) Q = heat transferred (Btu) q = heat transferred per unit mass (Btu/lbm) m = mass (lbm) ∆T = temperature change (°F) One lbm of water is raised 1°F and one Btu of heat is added. This...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
... 1 Heat and Temperature 1 Heat and Work 2 Modes of Transferring Heat 2 Heat Flux 3 Thermal Conductivity 3 Log Mean Temperature Difference 3 Convective Heat Transfer Coefficient 4 Overall Heat Transfer ... connected to the heat transfer site. Rev. 0 Page 5 HT-02 LIST OF TABLES Heat Transfer LIST OF TABLES NONE HT-02 Page iv Rev. 0 HEAT TRANSFER TERMINOLOGY Heat Transfer Heat and Work Distinction ... the overall heat transfer coefficient must be used to solve problems. • The heat transfer equation for convection heat transfer is . ˙ Q hA∆T Rev. 0 Page 25 HT-02 Heat Transfer HEAT TRANSFER TERMINOLOGY Heat...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
... easy to examine how energy transfers take place among elevation head, velocity head, and pressure head. It is possible to examine individual components of piping systems and determine what fluid ... case the flow velocity and the velocity head must be constant to satisfy the mass continuity equation. Rev. 0 Page 23 HT-03 Fluid Flow LAMINAR AND TURBULENT FLOW LAMINAR AND TURBULENT FLOW The ... characteristics of laminar and turbulent flow are very different. To understand why turbulent or laminar flow is desirable in the operation of a particular system, it is necessary to understand the characteristics...
Ngày tải lên: 17/03/2014, 15:00
fluid flow, heat transfer and boiling in micro-channels
... three-zone heat transfer model in the elon- gated bubble regime and then generalize it to include the heat transfer mechanisms controlling bubbly and annular flows, a composite coalescing flow and diabatic ... Flow, Heat Transfer and Boiling in Micro-Channels 123 2.1 High -Heat Flux Management Schemes 9 Fig. 2.2 Chip package with thermal conduction path to heat sink via TIMs. Reprinted from La- sance and ... provides a higher heat transfer coefficient, de- pending on the specific coolant and mode of convective heat transfer. Since there is no wall separating the heat source from the coolant, the heat can be...
Ngày tải lên: 02/04/2014, 15:51
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên: 06/05/2014, 08:57
molecular dynamics simulation of heat transfer and phase change during
Ngày tải lên: 06/05/2014, 08:59
DOE-HDBK-1012/1-92JUNE 1992DOE FUNDAMENTALS HANDBOOK THERMODYNAMICS, HEAT TRANSFER, AND FLUID pptx
Ngày tải lên: 09/07/2014, 07:20
Effect of periodic suction on three dimensional flow and heat transfer past a vertical porous plate embedded in a porous medium
Ngày tải lên: 05/09/2013, 14:58
Heat Transfer: Basics and Practice ppt
... by the heat transfer coefficient α , the heat transfer surface area A and the temperature difference Δϑ . The heat transfer coefficient defines the heat rate Q transferred per unit transfer ... prediction of heat transfer processes is required. To design a heat exchanger or a complete plant, in which heat is transferred, exact knowledge of the heat transfer processes is mandatory to ensure ... tubes 158 6 Boiling heat transfer 171 6.1 Pool boiling 171 6.1.1 Sub-cooled convection boiling 173 6.1.2 Nucleate boiling 173 6.2 Boiling at forced convection 182 6.2.1 Sub-cooled boiling 182 6.2.2...
Ngày tải lên: 24/03/2014, 01:20
convective heat transfer mathematical and computational modelling of viscous fluids and porous media
... immense research effort has been expended in exploring and understanding the convective heat and mass transfer processes between a fluid and submerged objects of various shapes. Among several ... both the analytical and numerical expressions for F0, Go, F1 and G1 and also that fl - 01 = 0. Thus, the asymptotic expressions for the reduced skin friction and reduced heat transfer are given ... a constant heat flux qw, where T~ > Too and qw > 0. Heat is supplied to the fluid by diffusion and convection from the plate and this heating gives rise to a buoyant body force. There...
Ngày tải lên: 01/04/2014, 10:51
process heat transfer principles and applications
... convective heat transfer decreases along the length of the fin, and hence the extended surface is less effective in transferring heat than the prime surface. In order to calculate the rate of heat transfer ... of heat transfer from the prime surface per foot of pipe length. (e) The weighted efficiency of the finned surface. (f) The total rate of heat transfer (from fins and prime surface). (g) The heat ... temperature is 150 ◦ F and the tube is surrounded by a fluid at 100 ◦ F with a heat- transfer coefficient of 75 Btu/h ·ft 2 · ◦ F. (a) Calculate the fin efficiency and the rate of heat transfer from the...
Ngày tải lên: 02/04/2014, 15:29
engineering thermofluids thermodynamics fluid mechanics and heat transfer
... Mixtures Condensation Applications (VI) Heat Exchangers Flow Measurement Turbomachines Simulation of Systems Nuclear Heat Heat Transfer (IV) Two-phase Heat Transfer Conduction Convection Radiation Boiling Engineering ... thermionic, magnetohydrodynamic, and photovoltaic), heating and cooling systems (boilers, fan coolers, heat pumps, refrigerators, radiators, steam generators, and other heat exchangers), chemical ... fundamental and the constitutive equations. Application of the constitutive equations depends on the type of analysis. If the analysis involves heat transfer, temperature and the rate of heat transfer...
Ngày tải lên: 02/04/2014, 15:51
hydrodynamics, mass, and heat transfer in chemical engineering, crc (2002) - opet
... used as a concise handbook in chemical engineering science and related fields in hydrodynamics, heat and mass transfer, etc. The authors are grateful to A. E. Rednikov and Yu. S. Ryazantsev, ... tubes and channels accompanied by dissipative heating of liquid are also studied. Qualitative features of heat transfer in liquids with temperature- dependent viscosity are discussed, and various ... are analyzed. In Chapter 6 we consider problems of hydrodynamics and mass and heat transfer in non-Newtonian fluids and describe the basic models for rheologically complicated fluids, which...
Ngày tải lên: 02/04/2014, 15:52
mass and heat transfer analysis of mass contactors and heat exchangers (cambridge series in chemical engineering)
... Equivalence Between Heat and Mass Transfer Model Equations 180 Nomenclature for Part I 181 P1: KAE CUFX282-pre CUFX282/Russell 978 0 521 88670 3 March 7, 2008 11:4 MASS AND HEAT TRANSFER xxvii P1: ... derive them in Chapters 3 and 4. All Level III problems in heat and mass transfer require a constitutive relation to complete them, and the equations in Tables 1.4 and 1.5 contain those constitutive relations ... flow rates, and feed composition andbeaskedto calculate the composition of the exit stream.Or we might be given feed and effluent compositions and be asked to calculate reactor volume and flow rates....
Ngày tải lên: 02/04/2014, 15:52
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