3 types of heat transfer in cooking
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... air heater duct with V-shaped rib roughness on absorber plate. Int. Journal of Heat and Mass Transfer 2002; 45: 33 83- 33 96. [19] Muluwork K B. Investigations on fluid flow and heat transfer in ... Transactions of the ASME Journal of turbo machinery 1991b; 1 13: 36 7- 37 4. [8] Hu Z. and Shen J. Heat transfer enhancement in a conversing passage with discrete ribs. Int. Journal Heat and Mass Transfer ... heated wall in transverse, inclined, V-continuous and V- discrete pattern. Int. Journal of Heat Mass Transfer 20 03; 30 (2): 241-250. [17] Bhagoria J.L. and Sahu M.M. Augmentation of heat transfer...
Ngày tải lên: 05/09/2013, 16:10
heat transfer in femtosecond laserprocessing of metal
... JETP, vol. 39 , pp. 37 5 37 7, 1974. 4. T. Q. Qiu and C. L. Tien, Heat Transfer Mechanisms during Short-Pulse Laser Heating of Metals, ASME J. Heat Transfer, vol. 115, pp. 835 –841, 19 93. 5. T. Q. ... Thermal Lagging in Ultrafast Laser Heating, Int. J. Heat Mass Transfer, vol. 44, pp. 1725–1 734 , 2001. 10. L S. Kuo and T. Q. Qiu, Microscale Energy Transfer during Picosecond Laser Melting of Metal ... LASER PROCESSING OF METAL 2 23 Downloaded By: [Ingenta Content Distribution] At: 19:07 13 December 2007 Similar delays in the beginning of melting were observed during experiments on aluminum films...
Ngày tải lên: 06/05/2014, 08:53
hydrodynamics, mass, and heat transfer in chemical engineering, crc (2002) - opet
... 3& apos;. Plane straining flow: This flow can be obtained in the Taylor device, consisting of four rotating cylinders [474,475]. Note that flow 2' is the same as flow 3& apos; but in ... E2, E3 of the tensor [Ek,] reduced to the principal axes determine the intensity of tensile (or compressive) motion along the coordinate axes. Since the fluid is incompressible, only two of ... contain tables with exact solutions of the heat equation. In addition, the equation of convective diffusion, the continuity equation, equations of motion in some curvilinear orthogonal coordinate...
Ngày tải lên: 02/04/2014, 15:52
Ptinciples of heat transfer
... (a) -in. aluminum, (b) -in. stainless steel with a 1 -in thick layer of fiberglass insulation on the inside, and (c) of sandwich construction with a -in thick layer of stainless steel, a 1 -in thick ... K) Heat transfer rate 1 W ϭ 3. 412 Btu/h 1 Btu/h ϭ 0.2 931 W 1 ton ϭ 12,000 Btu/h ϭ 35 17.2 W Length 1m ϭ 3. 281 ft 1 ft ϭ 0 .30 48 m ϭ 39 .37 in 1 in ϭ 0.0254 m Mass 1 kg ϭ 2.2046 lb m 1 lb m ϭ 0.4 536 ... 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 Systems 23 1.7 Thermal Insulation 45 1.8 Heat...
Ngày tải lên: 08/04/2014, 11:00
heat transfer in femtosecond laser
... JETP, vol. 39 , pp. 37 5 37 7, 1974. 4. T. Q. Qiu and C. L. Tien, Heat Transfer Mechanisms during Short-Pulse Laser Heating of Metals, ASME J. Heat Transfer, vol. 115, pp. 835 –841, 19 93. 5. T. Q. ... Thermal Lagging in Ultrafast Laser Heating, Int. J. Heat Mass Transfer, vol. 44, pp. 1725–1 734 , 2001. 10. L S. Kuo and T. Q. Qiu, Microscale Energy Transfer during Picosecond Laser Melting of Metal ... PROCESSING OF METAL 229 HEAT TRANSFER IN FEMTOSECOND LASER PROCESSING OF METAL Ihtesham H. Chowdhury and Xianfan Xu School of Mechanical Engineering, Purdue University, West Lafayette, Indiana,...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... Study of Light-to -heat Absorption Mechanism in atomic Systems," International Journal of Heat and Mass Transfer, 41, pp. 839 -849. 3. Häkkinen, H., and Landman, U., 19 93, "Superheating, ... which is higher than the melting point, indicating superheating at the melting front. 9 10 11 12 13 14 15 16 0 5 10 15 20 25 30 Solid-liquid Interface Liquid-vapor Interface z (nm) Time (ps) (a) ... are obtained. First, during picosecond laser heating, the heat transfer process predicted using the continuum approach agrees with the result of the MD simulation. Second, when melting happens,...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... the melting interface region. The temperature in this flat region is around 90 K, which is higher than the melting point, indicating superheating at the melting front. 9 10 11 12 13 14 15 16 0 ... the increase of the atomic kinetic energy in laser heating, atoms vibrate more in the crystal region, causing a lower peak of the number density of atoms and a wide distribution. As laser heating ... of predicting the heating process induced by a picosecond laser pulse. Laser Induced Phase Change In this section, various phenomena accompanying phase change in an argon target illuminated...
Ngày tải lên: 06/05/2014, 08:57
molecular dynamics simulation of heat transfer and phase change during
... Study of Light-to -heat Absorption Mechanism in atomic Systems," International Journal of Heat and Mass Transfer, 41, pp. 839 -849. 3. Häkkinen, H., and Landman, U., 19 93, "Superheating, ... the melting interface region. The temperature in this flat region is around 90 K, which is higher than the melting point, indicating superheating at the melting front. 9 10 11 12 13 14 15 16 0 ... the increase of the atomic kinetic energy in laser heating, atoms vibrate more in the crystal region, causing a lower peak of the number density of atoms and a wide distribution. As laser heating...
Ngày tải lên: 06/05/2014, 08:59
![Báo cáo lâm nghiệp: "Merocoenoses of cambioxylophagous insect fauna of Norway spruce (Picea abies [L.] Karst.) with focus on bark beetles (Coleoptera: Scolytidae) and types of tree damage in different gradation conditions" ppsx](https://media.store123doc.com/images/document/2014_08/07/medium_eml1407381692.jpg)
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
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
Ngày tải lên: 05/09/2013, 14:58
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
... 29 Throttling Process 29 Summary 30 CHANGE OF PHASE 31 Classification of Properties 31 Saturation 33 Saturated and Subcooled Liquids 33 Quality 34 Moisture Content 35 Saturated and Superheated Vapors 35 Constant ... 35 Saturated and Superheated Vapors 35 Constant Pressure Heat Addition 35 Critical Point 36 Fusion 36 Sublimation 37 Triple Point 37 Condensation 38 Summary 39 PROPERTY DIAGRAMS AND STEAM TABLES 41 Property ... water, inches of mercury, millimeters of mercury, and microns of mercury. Conversion factors are listed below. 14.7 psia = 408 inches of water 14.7 psia = 29.9 inches of mercury 1 inch of mercury...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 2 of 3
... the heat is being transferred. Convection involves the transfer of heat by the mixing and motion of macroscopic portions of a fluid. Radiation, or radiant heat transfer, involves the transfer of ... transfer: Conduction involves the transfer of heat by the interactions of atoms or molecules of a material through which the heat is being transferred. Convection involves the transfer of heat by the mixing and ... 31 Non-Regenerative Heat Exchanger 34 Regenerative Heat Exchanger 34 Cooling Towers 35 Log Mean Temperature Difference Application to Heat Exchangers 36 Overall Heat Transfer Coefficient 37 Summary 39 BOILING HEAT...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
... 25 Application of Bernoulli’s Equation to a Venturi 27 Summary 30 HEAD LOSS 31 Head Loss 31 Friction Factor 31 Darcy’s Equation 32 Minor Losses 34 Equivalent Piping Length 34 Summary 36 NATURAL CIRCULATION ... engineering design of systems, it is very useful in understanding the operation of systems and predicting the approximate response of fluid systems to changes in operating parameters. The basic principles of ... points in the container to increase by the same amount. Since the pistons all have the same cross-sectional area, the increase in pressure will result in the forces on the pistons all increasing...
Ngày tải lên: 17/03/2014, 15:00
mass and heat transfer analysis of mass contactors and heat exchangers (cambridge series in chemical engineering)
... Batch Heat Exchanger 68 3. 3.2 Semibatch Heat Exchanger 68 3. 3.2.1 Mixed–Mixed Fluid Motions 69 3. 3.2.2 Mixed–Plug Fluid Motions 72 3. 3 .3 Continuous-Flow Tank-Type Heat Exchangers 74 3. 3 .3. 1 Mixed–Mixed ... K m Estimation 31 3 7 .3 Tubular Contactors 31 6 7 .3. 1 Cocurrent Area Estimation 31 6 7 .3. 2 Cocurrent K m Estimation 31 8 7 .3. 3 Countercurrent Area Estimation 31 8 7 .3. 4 Countercurrent K m Estimation 32 0 Nomenclature ... Technically Feasible Design of a Countercurrent Mass Contactor 33 5 8 .3 Analysis of a Pilot-Scale Bioreactor 34 5 Nomenclature 35 3 References 35 4 Problems 35 4 Index 36 3 ...
Ngày tải lên: 02/04/2014, 15:52
Developments in Heat Transfer Part 3 docx
... energy, heat is transferred to the product through the shelf, by acting on the temperature of the fluid flowing in the coil inserted in the shelf. 3. Secondary drying: when the sublimation of the ... Ventura, B., Glasmacher, U. A. (Eds.), 33 1 -33 7, The Geol. Soc., London, Special Publications, 32 4, ISBN 978-1-86 239 -285-4, London, UK 6 Heat Transfer in Freeze-Drying Apparatus Roberto Pisano, Davide ... (ℓ), mm 0.20 0 .32 0 .38 0 .34 Table 2. Geometrical characteristics of the various glass vials investigated in this study 4.1 Influence of processing conditions on K v Figure 3 (left-side graph)...
Ngày tải lên: 19/06/2014, 10:20