thermodynamics and heat transfer

... Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer Mahmoud Massoud Engineering Thermofluids Thermodynamics, Fluid Mechanics, and Heat Transfer With 345 Figures and 13 Tables Dr ... Pressure Pa Perimeter m Heat transfer per unit mass J/kg Linear heat generation rate W/m Heat flux W/m Volumetric heat generation rate W/m Heat transfer J Rate of heat transfer W Gas constant ... Stewart, and Lightfoot in Transport Phenomena, Rohsenow and Choi in Heat, Mass, and Momentum Transfer, ElWakil, in Nuclear Heat Transport, and Todreas and Kazimi in Nuclear Systems have pursued a similar...

Ngày tải lên: 02/04/2014, 15:51

... Chapter Summary and Study Guide 337 Problems 338 HEAT TRANSFER Heat 15 Getting Started inRate Equations Transfer: Modes, and Energy Balances 342 15.10 Heat Transfer Modes: Physical Origins and Rate ... Fundamentals of Heat and Mass Transfer (4ed, 2002) and Introduction to Heat Transfer (5ed, Wiley, 2002), and includes a number of features that will enhance your study of heat transfer However, ... to another and transferred between systems For closed systems, energy can be transferred by work and heat transfer The total amount of energy is conserved in all transformations and transfers...

Ngày tải lên: 02/04/2014, 16:45

... -6.4648 4.4 Rate of heat transfer The rate of heat transfer at the wall i.e the heat flux in terms of Nusselt number Nu for different values of α and Kp are entered in Table The heat flux at the ... Mass transfer effects on MHD flow and heat transfer past a vertical porous plate through a porous medium under oscillatory suction and heat source Int J Heat Mass Transfer 2009, 52, 5962-5969 S ... A1 B − A2 B − B − m )cos πz , (50) τz = − εα A1 A2 sin π z π 3.2 Rate of heat transfer The rate of heat transfer i.e heat flux at the wall in terms of Nusselt number (Nu) is given by ⎛ dθ ⎞ ⎛...

Ngày tải lên: 05/09/2013, 14:58

Ngày tải lên: 17/03/2014, 13:49

... Mass and Heat Transfer in Liquid Films Tubes and Boundary Layers 3.1 Convective Mass and Heat Transfer Equations and Boundary Conditions 3.1-1 Mass Transfer Equation Laminar ... Fluxes and the Sherwood Number 3.1.6 Heat Transfer The Equation and Boundary Conditions 3.1-7 Some Methods of Theory of Mass and Heat Transfer 3.1-8 Mass and Heat ... through tubes and channels of various shapes, and flow past plates, cylinders, and disks are examined In Chapters and we analyze mass and heat transfer in plane channels, tubes, and fluid films...

Ngày tải lên: 02/04/2014, 15:52

... mass and heat transfer based on the relationship between experimental data and model Using these model equations, teach students to design and interpret laboratory experiments in mass and heat transfer ... transfer and then to effectively translate this knowledge to the operation and design of mass and heat transfer equipment Develop the students’ molecular understanding of the mechanisms of mass and heat ... mass and heat transfer phenomena in fluids and the associated equipment based on a simple fluid mechanical model of the devices r Treat mass transfer on an equal level with heat transfer, and, ...

Ngày tải lên: 02/04/2014, 15:52

... Clausius Inequality 6.2 Entropy and Heat 6.3 Heat and Work as Areas 6.4 Entropy and Carnot Cycles 6.5 Second Law of Thermodynamics for Closed Systems 6.6 Second Law of Thermodynamics for Open Systems ... Transfer Heat Exchanger Curzon and Ahlborn (Endoreversible Carnot) Cycle Curzon and Ahlborn Cycle with Finite Heat Capacity Heat Source and Sink Finite Time Rankine Cycle with Infinitely Large Heat ... entropy, exergy, heat, work, and matter Thermodynamics likewise covers broad and diverse fields Basic to the study of thermodynamics are definitions and concepts, properties of substances and changes...

Ngày tải lên: 08/04/2014, 11:43

... Conference, Bangkok, Thailand, June 8-10, pp 367-372 22 Evaporation, Condensation and Heat Transfer Islam, K.M.S (2006) Heat and vapor transfer in tubular solar still and its production performance, ... Convective boiling heat transfer dominant - Rectangular, 0.231x0.713 Horizontal Nucleate boiling heat transfer dominant Nucleate boiling heat transfer dominant Convective boiling heat transfer dominant ... microheaters were controlled separately and monitored to determine the roles of the preheater and main heater To evaluate the heat input from the microheaters to the working fluid, the voltage and...

Ngày tải lên: 19/06/2014, 12:20

... B and C-stage cooling which are currently designated as film boiling, nucleate boiling and convective cooling, based on the cooling time-temperature and 50 Evaporation, Condensation and Heat Transfer ... nucleate boiling [NB], and convective heat transfer [CONV] with significantly varying heat transfer coefficients αFB (100 to 250 kW m-2 K-1); αNB (10 to 20 kW m-2 K-1), and αCONV (ca 700 W m-2 ... process is especially important because the highest heat transfer coefficient occurs during rewetting Experimental and Computational Study of Heat Transfer During Quenching of Metallic Probes 51...

Ngày tải lên: 19/06/2014, 12:20

... evaporators and heat exchangers They provide an effective method of fluid movement and they have large heat dissipation capabilities In these situations, their compact size and heat transfer abilities ... emergence of film boiling and their expansion along the heat- transfer surface drastically affects the heat removal, leading to crash - overheating of the heater surface and to its destruction Dry ... prediction of the critical heat flux, whose excess leads to the complete draining of heat- releasing surface and uncontrolled heating Study of heat transfer during boiling and evaporation of cryogenic...

Ngày tải lên: 19/06/2014, 12:20

... measured the bottom and bulk temperature, which allowed to determine the conditions of heat transfer 126 Evaporation, Condensation and Heat Transfer a) c) b) d) Fig Heat transfer apparatus: ... boiling and also to determine the conditions of heat transfer The attempt was made to determine the influence of oil phase content in mixture on the mechanism of boiling and on the value of heat transfer ... increase and fixed in time the heat flux density It was found that type of formed structure first of all depends on the heat flux density and duration of the process and the volume oil fraction and...

Ngày tải lên: 19/06/2014, 12:20

... condenser tube is a much better heat transfer surface At any tube 154 Evaporation, Condensation and Heat Transfer cross section with condensation, the local heat flux and heat transfer coefficient at ... observed The heat transfer coefficient depended on the vapor and liquid flow rate The von Karman analogy between momentum transfer and heat transfer was used to predict the heat transfer coefficient ... where hf is the film heat transfer coefficient, hc and hs are the condensation and sensible heat transfer coefficients in the gas mixture respectively Then, the total heat transfer coefficient...

Ngày tải lên: 19/06/2014, 12:20

... Condensation and Heat Transfer Δ Modelling the Thermo-Hydraulic Performance of Cooling Networks and Its Implications on Design, Operation and Retrofit Δ 201 202 Evaporation, Condensation and Heat Transfer ... 1974 Ho K and Phelke R D 1985, Metal-Mold interfacial heat transfer, Metallurgical Transactions B, 16B, 3, pp 585 - 594 Incropera F P and DeWitt D P, Fundamentals of Heat and Mass Transfer 4th ... Cooling Networks and Its Implications on Design, Operation and Retrofit 203 204 Evaporation, Condensation and Heat Transfer Modelling the Thermo-Hydraulic Performance of Cooling Networks and Its Implications...

Ngày tải lên: 19/06/2014, 12:20

... developed and developing flow with different types of inlet disturbances: Part II – 260 Evaporation, Condensation and Heat Transfer heat transfer, International Journal for Heat and Mass Transfer, ... Evaporation, Condensation and Heat Transfer Data reduction The inner tube's average heat transfer coefficient was obtained by making use of the overall heat transfer coefficient and the sum of the resistances, ... friction and heat transfer in smooth and rough passages Later on they (Obot et al., 1997) took measurements of heat transfer and pressure drop in smooth tubes in laminar, transitional and turbulent...

Ngày tải lên: 19/06/2014, 12:20

... flow velocity (6) 307 Heat Transfer Performances and Exergetic Optimization for Solar Heat Receiver 2.2 Heat absorption and exergetic efficiency of heat receiver The local heat absorption efficiency ... performance of solar heat receiver in detail, the heat transfer media are assumed to be Hitec heat transfer salt and air in present article If the air is used as the heat transfer medium at high ... R=0.010 m Local heat transfer performances of heat receiver 3.1 Heat transfer performances with different heat transfer media According to previous analyses, the local wall temperature and absorption...

Ngày tải lên: 19/06/2014, 12:20

... the receiver radius and fluid temperature, and that of air receiver is similar 313 Heat Transfer Performances and Exergetic Optimization for Solar Heat Receiver Uneven heat transfer characteristics ... collector Sandia National Laboratories Report, SAND92-7293 Heat Transfer Performances and Exergetic Optimization for Solar Heat Receiver 323 McDonald, C G (1995) Heat loss from an open cavity Sandia ... Journal of Heat and Mass Transfer, 47, 1467-1472 Shateyi, S., (2008) Thermal radiation and buoyancy effects on heat and mass transfer over a semi-infinite stretching surface with suction and blowing...

Ngày tải lên: 19/06/2014, 12:20

... uniformly heated with constant wall heat flux (but the instantaneous heat flux is time-dependent), so that the statistically averaged temperature 380 Evaporation, Condensation and Heat Heat Transfer Transfer ... convection heat trasfer in an asimmetrically heated vertical parallel-plate channel, International Journal of Heat and Mass Transfer, Vol 40, n 16, pp 3849-3860 Patankar, S.V.(1980) Numerical heat transfer ... Fluid Channel Flow of Heat Transfer in Drag-Reducing Channel Flow of Viscoelastic Fluid Turbulent Heat Transfer in Drag-Reducing 377 Fig Configuration of channel flow and heat transfer under thermal...

Ngày tải lên: 19/06/2014, 12:20

... International Journal of Heat and Fluid Flow, Vol 19, 482–491 398 24 Evaporation, Condensation and Heat Heat Transfer Transfer Kays, W.M & Crawford, M.E (1980) Convective heat and mass transfer, Second ... KN=0.075 at Re=2 and a=0.15 412 Evaporation, Condensation and Heat Transfer Results and discussion To have a clear understanding of the problem and studding the fluid flow and heat transfer characteristics ... of Heat and Mass Transfer, Vol 44, 2835–2843 Aly, W.I, Inaba, H., Haruki, N., & Horibe, A (1999) Drag and heat transfer reduction phenomena of drag-reducing surfactant solutions in straight and...

Ngày tải lên: 19/06/2014, 12:20

... Non-equilibrium kinetics and heat transfer in O2 /O mixtures near catalytic surfaces, J Thermophys Heat Transfer 16(2): 238–244 464 26 Evaporation, Condensation and Heat Transfer Will-be-set-by-IN-TECH ... numerical simulations of high-temperature and high-enthalpy reacting flows the heat transfer and transport coefficients 458 20 Evaporation, Condensation and Heat Transfer Will-be-set-by-IN-TECH are described ... state-to-state model is 4% and 10% for anharmonic and harmonic oscillators, respectively, and, correspondingly, 460 Evaporation, Condensation and Heat Transfer Will-be-set-by-IN-TECH 22 7% and 10% for the...

Ngày tải lên: 19/06/2014, 12:20

... Dependence of dimensionless heat transfer of rough tubes on Re 80000 100000 490 Evaporation, Condensation and Heat Transfer As it has been noted the intensity of heat transfer and hydraulic resistance ... 332–333 Berenson, P J (1961) Film boiling heat transfer from a horizontal surface, J Heat Transfer, Vol 83, pp 351, 1961 486 Evaporation, Condensation and Heat Transfer Carey, V P (1992) Liquid-Vapor ... ways of heat transfer enhancement (especially at boiling) is a flow twisting which promotes liquid phase rejection to a heat transfer surface In this connection the hydrodynamics and heat transfer...

Ngày tải lên: 19/06/2014, 12:20