3 types of heat transfer worksheet
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... Journal of Heat Mass Transfer 20 03; 30 (2): 241-250. [17] Bhagoria J.L. and Sahu M.M. Augmentation of heat transfer coefficient by using 900 broken transverse ribs on absorber plate of solar air heater, ... 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 ... Investigation of heat transfer and friction for rib- roughened surfaces, Int. Journal of Heat & Mass Transfer 1978; 21: 11 43- 1156. [4] Webb R.L., Eckert E.R.G. and Goldstein R. J. Heat transfer...
Ngày tải lên: 05/09/2013, 16:10
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 ... ft 3 ) 1 Btu/(h и ft 3 ) ϭ 10 .34 3 W/m 3 per unit volume Heat transfer coefficient 1 W/(m 2 и K) ϭ 0.1761 Btu/(h и ft 2 и °F) 1 Btu/(h и ft 2 и °F) ϭ 5.678 W/(m 2 и K) Heat transfer rate 1 W ϭ 3. 412 ... Introduction 231 4.2 Convection Heat Transfer 231 4 .3 Boundary Layer Fundamentals 233 4.4 Conservation Equations of Mass, Momentum, and Energy for Laminar Flow Over a Flat Plate 235 4.5 Dimensionless...
Ngày tải lên: 08/04/2014, 11:00
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, ... 39 , pp. 37 5- 37 7. 5. Kotake, S., and Kuroki, M., 19 93, "Molecular Dynamics Study of Solid Melting and Vaporization by Laser Irradiation," International Journal of Heat and Mass Transfer, ... Molecular Dynamics Study on Light-to -heat Absorption Mechanism: Two Metallic Atom System," International Journal of Heat and Mass Transfer, 40, pp. 32 09 -32 22. 2. Shibahara, M., and Kotake,...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... ASME Proceedings of NHTC'01 35 th National Heat Transfer Conference Anaheim, California, June 10-12, 2001 NHTC2001-20070 MOLECULAR DYNAMICS SIMULATION OF HEAT TRANSFER AND PHASE ... 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 heating, the crystal ... consisting of 13 atoms or less [1, 2]. Their work was focused on the structural change of metallic atoms due to laser beam absorption. Häkkinen and Landman [3] studied dynamics of superheating,...
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 fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 1 of 3
... 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 Pressure Heat ... 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 vaporization. ... psia = 408 inches of water ã 14.7 psia = 29.9 inches of mercury ã 1 inch of mercury = 25.4 millimeters of mercury ã 1 millimeter of mercury = 10 3 microns of mercury Rev. 0 Page 13 HT-01 Thermodynamics...
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 ... 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 ... modes of heat 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...
Ngày tải lên: 17/03/2014, 15:00
doe fundamentals handbook - thermodynamics, heat transfer, and fluid flow - volume 3 of 3
... Equation 32 Minor Losses 34 Equivalent Piping Length 34 Summary 36 NATURAL CIRCULATION 37 Forced and Natural Circulation 37 Thermal Driving Head 37 Conditions Required for Natural Circulation 38 Example ... Systems 23 Restrictions on the Simplified Bernoulli Equation 25 Extended Bernoulli 25 Application of Bernoulli’s Equation to a Venturi 27 Summary 30 HEAD LOSS 31 Head Loss 31 Friction Factor 31 Darcy’s ... ˙m outlets ˙m 12 ˙m 10 ˙m 8 ˙m 8 ˙m 12 ˙m 10 (ρAv) 8 ˙m 12 (ρAv) 10 v 8 ˙m 12 (ρAv) 10 (ρA) 8 500 lbm sec 62.4 lbm ft 3 (0.545 ft 2 ) 10 ft sec 62.4 lbm ft 3 (0 .34 9 ft 2 ) v 8 7 .3 ft sec Summary The main points of this chapter are summarized on the next page. Rev. 0 Page 15 HT- 03 ...
Ngày tải lên: 17/03/2014, 15:00
fundamentals of heat and mass transfer solutions manual phần 3 pdf
Ngày tải lên: 08/08/2014, 17:20
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
Cooling load optimization of an irreversible refrigerator with combined heat transfer
Ngày tải lên: 05/09/2013, 15:28
Ecological performance of a generalized irreversible Carnot heat engine with complex heat transfer law
Ngày tải lên: 05/09/2013, 15:28
convective heat transfer mathematical and computational modelling of viscous fluids and porous media
... (x-l)] (3. 33) q~(~) - ~-~ [0 .35 682 + o (~-~)] for x >> 1 since hi ~ 0, as can be seen from the system of Equations (3. 32). FREE AND MIXED CONVECTION FLOW 89 c3~ OV 10p (c32V 02V) ... 0.7942 0.7746 0.7559 0. 738 4 0.7219 0.7065 0.6921 0.6785 0.6657 0.6 537 0.6424 0. 631 7 1.4671 1.4268 1 .39 20 1 .36 17 1 .33 47 1 .31 06 1.2897 1.2699 1.2517 1. 234 9 1.2194 1.2050 1.1915 ... 1.1915 1.1789 1.1670 1.1558 e(o) Series (1.65) 1. 533 5 1.4815 1. 438 0 1.4010 1 .36 90 1 .34 08 1 .31 57 1.2 932 1.2728 1.2541 1. 237 0 1.2212 1.2065 1.1929 1.1801 1.1680 1.1567 25...
Ngày tải lên: 01/04/2014, 10:51
fundamentals of heat and mas transfer seventh edition
... Boundary Layers 38 2 6.2 Local and Average Convection Coefficients 38 2 6.2.1 Heat Transfer 38 2 6.2.2 Mass Transfer 38 3 6.2 .3 The Problem of Convection 38 5 6 .3 Laminar and Turbulent Flow 38 9 6 .3. 1 Laminar ... Methods 33 0 5.10.1 Discretization of the Heat Equation: The Explicit Method 33 0 5.10.2 Discretization of the Heat Equation: The Implicit Method 33 7 5.11 Summary 34 5 References 34 6 Problems 34 6 5S.1 ... Law of Cooling 525 8.2 .3 Fully Developed Conditions 525 8 .3 The Energy Balance 529 8 .3. 1 General Considerations 529 8 .3. 2 Constant Surface Heat Flux 530 8 .3. 3 Constant Surface Temperature 533 8.4...
Ngày tải lên: 02/04/2014, 15:51
fundamentals of heat and mass transfer
... 877 13. 3.2 Radiation Exchange Between Surfaces 878 13. 3 .3 The Two-Surface Enclosure 884 13. 3.4 Radiation Shields 886 13. 3.5 The Reradiating Surface 888 13. 4 Multimode Heat Transfer 8 93 13. 5 Implications ... Law of Cooling 525 8.2 .3 Fully Developed Conditions 525 8 .3 The Energy Balance 529 8 .3. 1 General Considerations 529 8 .3. 2 Constant Surface Heat Flux 530 8 .3. 3 Constant Surface Temperature 533 8.4 ... Considerations 30 2 5.6 Radial Systems with Convection 30 3 5.6.1 Exact Solutions 30 3 5.6.2 Approximate Solutions 30 4 5.6 .3 Total Energy Transfer 30 4 5.6.4 Additional Considerations 30 5 5.7 The Semi-Infinite...
Ngày tải lên: 02/04/2014, 15:51
incropera fundamentals of heat and mass transfer
... 1 .39 (Continued) where () 2 A DL 0.07 m 0.15 m 0. 033 m . s == ì = Hence, ()() ( ) 22 2824444 q 4W/m K 0. 033 m 20 C 0.8 0. 033 m 5.67 10 W/m K 31 3 2 93 K = +ì ìì ⋅ − $ q 2.64 W 3. 33 ... c/3q dT 1 0T i ρ =∀ ∫∫ () () 33 3 990 kg/m 10gal 3. 79 10 m / gal 4180J/kg K t 33 5 295 K 4180 s 3 500 W ìì == ì < (b) From Eq. (1.3a), the heat rate by convection from each heater ... tot q/q ′′ vs. T, note that the convection heat transfer rate is always a small fraction of the total heat transfer. That is, radiation is the dominant mode of heat transfer. Note also that the convection...
Ngày tải lên: 02/04/2014, 15:52
mass and heat transfer analysis of mass contactors and heat exchangers (cambridge series in chemical engineering)
... 0 521 88670 3 March 7, 2008 11:4 x Contents 3. 3 Tank-Type Heat Exchangers 67 3. 3.1 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 ... Motions 72 3. 3 .3 Continuous-Flow Tank-Type Heat Exchangers 74 3. 3 .3. 1 Mixed–Mixed Fluid Motions 74 3. 3 .3. 2 Mixed–Plug Fluid Motions 78 3. 4 Tubular Heat Exchangers 79 3. 4.1 Cocurrent Flow 81 3. 4.2 ... 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...
Ngày tải lên: 02/04/2014, 15:52