types of heat transfer in cooking

... 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

... 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

... 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

... (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

... 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

... 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

... 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

... 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

... (H et al. 2009).  e structure of merocoenoses of cambiopha- gous insects in lying (wind-felled) trees diff ers from that of standing trees (in endemic situation) in the high attack by I. typographus ... 4). Merocoenoses of cambioxylophagous insects in wind-felled trees, breaks and fragments  e trees felled by the wind in autumn were checked for the presence of cambioxylophagous in- sects in next spring ... diversity of cambioxylophagous and wood-inhabiting insects (33), but only 18 species were more abundant. Considering the frequency of occurrence of cambioxylophagous insects in standing trees...

Ngày tải lên: 07/08/2014, 10:21

... exercise involving at least one-sixth of the skeletal muscles (for example, walk- ing, running, biking, aerobics, vibrations). At least 50% of the training session should consist of AE. In the case of mixed ... recognised criteria were included. Types of intervention AE was assumed if the reported target heart rate of the training protocol was at least (on average) 40% of maxHR or if the training protocol included ... which types, volumes and intensities of AE are effective by performing head-to-head comparisons of RCTs with different types and intensities of AE. The final aim was to assess whether ongoing exercise...

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Ngày tải lên: 05/09/2013, 14:58

... 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

... 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

... 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

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Ngày tải lên: 04/10/2012, 10:02

... performance of the engine with the ECD-V4 has been improved (by atomizing the fuel into finer particles and optimizing the rise rate of the injection pressure), and providing the injection volume and injection ... the fuel fills the injection pump, it lubricates and cools the moving parts in the injection pump. After the fuel is pressurized, it is injected into the engine cylinder by the injection nozzle. ... solenoid spill valve to control fuel injection, enabled the control of the injection volume on a cylinder-by-cylinder basis. Depending on the type of final injection volume correction and the...

Ngày tải lên: 23/10/2012, 09:09

Ngày tải lên: 07/11/2012, 14:47