method of heat transfer in cooking
An experimental investigation of heat transfer and fluid flow in a rectangular duct with inclined discrete ribs
... enhancement of heat transfer heated surface to the working fluid. In the present work experimental investigations has been carried out to study the effect of a gap in the inclined rib on the heat transfer ... Associate Professor in the Department of Mechanical Engineering at M.A.N.I.T. Bhopal (M.P.) INDIA. He received Ph D degree from IIT Roorkee , INDIA. He is working in the area of heat transfer and ... the heated wall in transverse, inclined, V-continuous and V- discrete pattern. Int. Journal of Heat Mass Transfer 2003; 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
... L. Tien, Heat Transfer Mechanisms during Short-Pulse Laser Heating of Metals, ASME J. Heat Transfer, vol. 115, pp. 835–841, 1993. 5. T. Q. Qiu and C. L. Tien, Femtosecond Laser Heating of Multi-Layer ... amount of superheating and that a distinct melt phase develops with duration of the order of nanoseconds. INTRODUCTION In the last few years, the use of femtosecond lasers in materials processing ... Laser Heating, Int. J. Heat Mass Transfer, vol. 44, pp. 1725–1734, 2001. 10. L S. Kuo and T. Q. Qiu, Microscale Energy Transfer during Picosecond Laser Melting of Metal Films, Proc. 31st Natl. Heat...
Ngày tải lên: 06/05/2014, 08:53
hydrodynamics, mass, and heat transfer in chemical engineering, crc (2002) - opet
... maintain the rotation of the cylinder at a constant angular velocity W in infinite fluid, it is necessary to apply the following time-dependent angular momentum per unit length of the cylinder: ... 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 ... 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' but in a different 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 ... defined in terms of the local value by (1.12) For most engineering applications, we are interested in average values. Typical val- ues of the order of magnitude of average convection heat transfer ... mechanisms of heat transfer have been treated separately. In practice, however, heat is usually transferred by several of the basic mechanisms occurring simultaneously. For example, in the winter, heat...
Ngày tải lên: 08/04/2014, 11:00
heat transfer in femtosecond laser
... 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, ... L. Tien, Heat Transfer Mechanisms during Short-Pulse Laser Heating of Metals, ASME J. Heat Transfer, vol. 115, pp. 835–841, 1993. 5. T. Q. Qiu and C. L. Tien, Femtosecond Laser Heating of Multi-Layer ... Laser Heating, Int. J. Heat Mass Transfer, vol. 44, pp. 1725–1734, 2001. 10. L S. Kuo and T. Q. Qiu, Microscale Energy Transfer during Picosecond Laser Melting of Metal Films, Proc. 31st Natl. Heat...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... 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 ... 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, ... 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., 1993, "Superheating,...
Ngày tải lên: 06/05/2014, 08:55
molecular dynamics simulation of heat transfer and phase change during
... 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 ... metal interaction in two steps including photon energy absorption in electrons and lattice heating through interaction with electrons. A large body of the MD simulation of laser material interaction ... 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
... 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 ... 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., 1993, "Superheating, ... 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 calculated in the...
Ngày tải lên: 06/05/2014, 08:59
Báo cáo lâm nghiệp: "Efficient method of micropropagation and in vitro rooting of teak (Tectona grandis L.) focusing on large-scale industrial plantations" pptx
... the use of putrescine, which in com- bination with low concentration of auxin, in rooting medium, was essential in stimulating high rooting percentage with high quality of roots, resulting in fast ... auxins, it promoted early rooting and increased the final rooting percent- age and the number of roots per explant [21, 22]. Putrescine is involved in root induction by increasing the activity of ... H 2 O 2 freeing from polyamine catabolism, which is well known to increase peroxidase activity reducing IAA in the in- duction phase [23]. Putrescine not only induces an increase in rooting percentage...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo y học: " Microfinance as a method of facilitating research in emergency medicine" ppsx
Ngày tải lên: 13/08/2014, 23:21
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
mass and heat transfer analysis of mass contactors and heat exchangers (cambridge series in chemical engineering)
... the jacket. The flow rate of heating–cooling fluid can be adjusted in order to maintain control over the temperature in the batch vessel. We often do this by constructing a jacket around the process ... 2007 0:57 Introduction 7 Of course, this is not exactly what occurs in a real system. Close to the point of intro- duction, the fluid in the vessel will have properties that are some intermediate ... December 21, 2007 23:45 68 Heat Exchanger Analysis Batch and semibatch heat exchangers are used when the heating or cooling of a fixed volume of fluid is required, whereas continuous systems are used...
Ngày tải lên: 02/04/2014, 15:52
Báo cáo hóa học: " Numerical evaluation of laminar heat transfer enhancement in nanofluid flow in coiled square tubes" pdf
... details 1 Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, 117576 Singapore 2 Minerals, Metals and Materials Technology Centre, National University of Singapore, ... con- ductivity of these fluids by suspending nanoparticles of * Correspondence: jc.kurnia@nus.edu.sg 1 Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore, ... nanoparticles are given in Table 1. Heat transfer performance The heat transfer performance of the cooling channel is discussed in terms of the figure of mer it, FoM, which is defined as FoM = W W p um p , (14) Figure...
Ngày tải lên: 21/06/2014, 03:20
Báo cáo hóa học: " Review of thermo-physical properties, wetting and heat transfer characteristics of nanofluids and their applicability in industrial quench heat treatment" pot
... CHF during pool boiling of nanofluids increased even when the pool boiling heat transfer of nanofl uid may dec rease or rem ain unchanged. During quench hardening process, the surface heat transfer ... boiling heat transfer of the nanofluids on the grooved surface increases remarkably [120]. Kathiravan e t al. observed the enhancement of heat transfer coefficient during the pool boiling of water-CNT ... enhancement in the pool boiling heat transfer of alumina nanofluids. The enhancement increases with increasing particle concentration and reaches approxi- mately 40% at a particle loading of 1.25%...
Ngày tải lên: 21/06/2014, 04:20
An inverse problem in linear crack media under heat transfer using boundary element method pps
... about using the computing principle of inverse problem by means of heat transfer and the numerical tool used in the Boundary Element Method. The aim of this method is used to detect cracks in two-dimensional ... work presents an application of the inverse problem to fracture mechanics under heat transfer. The boundary element method is used to determine the heat transfer in two-dimensional problems, ... element method (BEM) is a numerical method for obtaining approximate solutions by solving boundary integral equations. Equations provide a determined formulation of boundary-value problems in different...
Ngày tải lên: 13/08/2014, 22:21
Pragmatic Transfer in Interlanguage Requesting by Vietnamese learners of English part 1
Ngày tải lên: 07/11/2012, 14:47
Pragmatic Transfer in Interlanguage Requesting by Vietnamese learners of English part 2
Ngày tải lên: 07/11/2012, 14:47
Cooling load optimization of an irreversible refrigerator with combined heat transfer
Ngày tải lên: 05/09/2013, 15:28