question about heat transfer and motor oil

... Glicksman L.R., Rohsenow W.M Heat transfer and friction for rib roughened surfaces Internatinal Journal of Heat Mass Transfer 1978, 21, 1143-56 [5] Han J.C Heat transfer and friction in channels ... K.R, Gandhi B.K, Saini J.S Heat transfer and friction characteristics of solar air heater duct having integral inclined discrete ribs on absorber plate International Journal of Heat and Mass Transfer ... flow and heat transfer in a rib grit roughened surface solar air heater using CFD Solar Energy 2010, 84, 409-417 [22] Bopache S.B., Tandale M.S Experimental investigations on heat transfer and

Ngày tải lên: 05/09/2013, 15:28

... 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 channels ... Journal of Heat Transfer, 106, 774-781, 1984 [3] Han J.C., Glicksman LR and Rosenow WM Investigation of heat transfer and friction for ribroughened surfaces, Int Journal of Heat & Mass Transfer ... on heat transfer and flow behavior in a rectangular rib roughened passage” International Journal of Heat and mass transfer; 123: 675-681, 2001 [6] Lau S.C., McMillin R.D and Han J.C Turbulent Heat

Ngày tải lên: 05/09/2013, 16:10

... beam absorption Häkkinen and Landman [3] studied dynamics of superheating, melting, and annealing at the Cu surface induced by laser beam irradiation using the two-step heat transfer model developed ... conditions, atoms are easier to expand in space when heated Therefore, more heat is stored in the form of potential energy and resulting in a larger specific heat The specific heat at constant volume is ... 1Proceedings of NHTC'01 35th National Heat Transfer Conference Anaheim, California, June 10-12, 2001 NHTC2001-20070 MOLECULAR DYNAMICS SIMULATION OF HEAT TRANSFER AND PHASE CHANGE DURING LASER MATERIAL

Ngày tải lên: 06/05/2014, 08:55

... Mechanics and Heat Edition es of Regenerative Heat Transfer NUMERICAL HEAT TRANSFER AND FLUID FLOW Trang 3Library of Congress Cataloging in Publication Data Patankar, S¥ ‘Numerical heat unser and ... Trang 8NUMERICAL HEAT TRANSFER AND FLUID FLOW Trang 9 INTRODUCTION 1.1 SCOPE OF THE BOOK Importance of heat transfer and fluid flow This book is concerned with heat suid mass transfer, uid flow, ... Pluid Mechanies and leat ‘omputatjonal Heat Transfer ‘chan Numerical Heat Trensfor and Fluid Flow Heinrich, The Finite Element Method: Basic Concepts und plications Sst, Numerical Heat Transfer PROCEEDINGS

Ngày tải lên: 05/05/2018, 08:45

... corresponding to 0.012 and 0.016 kg s1 were (Tbp= 75.02 and 78.75C) and (Tab= 87.50 and 93.03C) (see Table 1a), and (Tab= 70.25 and 74.50C) and (Tbp= 91.25 and 94.02C) (seeTable 1b), respectively The ... conventional flat-plate solar air heater has been investigated for heat transfer efficiency improvement by introducing forced convection[22,23], extend-ing heat transfer area [24,25] and increasing air turbulence ... improve the heat transfer coeffi-cient Artificial roughness obstacles and baffles in various shapes and arrangements were employed to increase the area of the absorber plate As a result, the heat transfer

Ngày tải lên: 13/01/2020, 11:50

... thermal conductivity of the heat transfer plate is 16.2 W/m·K, and the average heat transfer area respectively The hot-side heat transfer coefficient, hh and the cold-side heat transfer coefficient, ... average heat transfer rate and heat transfer performance of the countercurrrent configuration were 6.8% and 10%‒15% higher, respectively, than those of the parallel flow The average heat transfer ... Experimental Results and Discussion 3.1 Heat Transfer Characteristics Figures 8‒10 show the heat transfer characteristics of the two types of heat transfer exchangers, i.e., PCHE#1 and PCHE#2 in Figure

Ngày tải lên: 02/11/2022, 11:34

... Rosseland thermal radiation in Blasius flow Cortell22investigated the fluid flow and nonlinear radiative heat transfer over a stretching sheet A numerical study of nonlinear radiative heat transfer ... thermal conductivity, cp is the specific heat at constant pressure and qris the radiative heat flux The corresponding boundary conditions for the flow and heat transfer problem are u= U, v = 0, w ... skin-friction coefficient and the rate of heat transfer along the curved wall, which are defined as Cf = τrs ρU2 w , Nus= sqw k1(Tw− T∞), (18) where τrsis the wall shear stress and qwis the heat flux at the

Ngày tải lên: 04/12/2022, 15:36

... heat transfer When the convective heat transfer coefficient h = mk, the addition of (a) Increase the rate of heat transfer (b) Decrease the rate of heat transfer (c) Not increase the rate of heat ... fluid (a) 1 and 2 are correct (b) 2 and 4 are correct (c) 1 and 3 are correct (d) 2 and 3 are correct Previous 20-Years IAS Questions Heat Transfer from a Bar Connected to the Two Heat Sources ... maintained at 21°C (dry bulb) and 14.5°C The outside temperature is –23°C (dry bulb) and the internal and external surface heat transfer coefficients are 8 W/m 2 K and 23 W/m 2 K respectively

Ngày tải lên: 09/03/2016, 10:35

... friction and the rate of heat transfer are discussed with the help of figures and tables Copyright © 2010 International Energy and Environment Foundation - All rights reserved Keywords: Heat transfer, ... -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 N u for different values of α and K p are entered in Table 2 The heat flux at the ... of mass transfer on unsteady flow past an accelerated vertical porous plate with suction Das and his co-workers [15] discussed the effect of mass transfer on MHD flow and Trang 2heat transfer

Ngày tải lên: 05/09/2013, 14:58

... of industrial processes and devices This book includes 18 advanced and revised contributions, and it covers mainly (1) heat convection, (2) heat conduction, and (3) heat transfer analysis The first ... Power and V LaRocca Part 3 Heat Transfer Analysis 297 Chapter 14 Heat Transfer Analysis of Reinforced Concrete Beams Reinforced with GFRP Bars 299 Rami A Hawileh Chapter 15 Modelling of Heat Transfer ... The third section includes heat transfer analysis of reinforced concrete beam, modeling of heat transfer and phase transformations, boundary conditions-surface heat flux and temperature, simulation

Ngày tải lên: 19/06/2014, 10:20

... 2, 3, Gr = 105, 104, and 105 on Heater 1 and 2 Figure (15) depicts the effect of the Reynolds number on heat transfer for Gr = 103, 104, and 105, Re = 1, 10, 100, and 1000, and finally, d = 1, ... = 10 and 100, and γ = 0°, 45°and 90° Figure (19) depicts the velocity vectors for Re = 10 and 100 and Gr = 105 for γ = 0°, 45°, and 90° It can be noted that for Re = 10 and γ = 0°, 45°, and 90°, ... θ on Heater 1 and 2 for Re = 100 and 1000 and d = 1, 2, and 3 The distance between the modules does not affect the temperature on Heater 1 whereas this effect can be distinctively seen on Heater

Ngày tải lên: 19/06/2014, 10:20

... comparable magnitude and the resulting heat transfer process is categorized as mixed convection. Mixed convection flow and heat transfer also occur frequently in other engineering and natural situations. ... the enclosure rotates to 180º, the heat transfer mechanism switches to the diffusion because the top wall is heated. 1.1.2 LID driven enclosure Flow and heat transfer analysis in lid-driven cavities ... analysis to understand the physics of the resulting flow and heat transfer process. 1.3 Motivation behind the selection of problem Two dimensional steady, mixed convection heat transfers in a

Ngày tải lên: 19/06/2014, 10:20

... Convection heat transfer in electronic equipment cooling, J.Heat Transfer 110 (1988) 1097–1111 [5] C K Cha and Y Jaluria, Recirculating mixed convection flow for energy extraction, Int j Heat Mass Transfer ... conditions, Energy and Buildings 33 (2001) 753-757 [18] M.K Moallemi, K.S Jang, Prandtl number effects on laminar mixed convection heat transfer in a lid-driven cavity, Int J Heat Mass Transfer 35 (1992) ... Viskanta, Laminar flow and heat transfer in Rayleigh–Benard convection with shear, Phys Fluids A 4 (1992) 2131–2140 [20] A.A.Mohammad, R.Viskanta,Flow structures and heat transfer in a lid-driven

Ngày tải lên: 19/06/2014, 10:20

... several thermo-fluid problems (Kosec and Šarler, 2008a, Kosec and Šarler, 2008b, Kosec and Šarler, 2008c, Kosec and Šarler, 2008d, Kosec and Šarler, 2009) and it shows several advantages like ... al., 2001, Ni and Beckermann, 1991, Prasad and Kulacky, 1984, Prax, et al., 1996, Raghavan and Ozkan, 1994, Šarler, et al., 2000, Šarler, et al., 2004a, Šarler, et al., 2004b) and therefore ... defined time and spatial discretization schemes, the general transport equation under the model assumptions can be written as where θ0,1, D t,Δ andS0stand for the field value at current and next

Ngày tải lên: 19/06/2014, 10:20

... Model of Heat and Mass Transfer During Convective Drying of Porous Materials. Heat Transfer – Asian Research, Volume 28 № 5, pp. 337-351 0 Non-Linear Radiative-Conductive Heat Transfer in ... −1 and t 0 = -2°C Convection and Conduction Heat Transfer 174 9. Conclusion This paper describes the creation and solution of non-linear mathematical models for the transient heat ... Perre, P. (1988). Detailed Study of a Model of Heat and Mass Transfer During Convective Drying of Porous Media, International Journal of Heat and Mass Transfer , Volume 31, № 5, pp. 297-310 Chudinov,

Ngày tải lên: 19/06/2014, 10:20

... cross-sectional square and it is perpendicular to fibres direction Perfect contact between the matrix and the cell is assumed, heat transfer does not depend on time, and only conductive transfer is considered ... problem one can take under consideration three types of heat transfer heat transfer coefficient, – thermal conductivity coefficient, nx and ny – components of normal vector to boundary In developing ... two-dimensional formulation is shown in Fig 3 Two two-dimensional steady heat transfer in considered domain is governed by following heat transfer equation: 0, (12) in the domain Ω 1 All figures in this

Ngày tải lên: 19/06/2014, 10:20

... 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

... 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