APPROACH FOR DETERMINING SURFACE-TEMPERATURE DISTRIBUTIONS OF SOLID OBJECTS SUBJECTED TO HEATING APPLICATIONS

被引：3

作者：

DINCER, I

DOST, S

机构：

[1] Department of Mechanical Engineering, University of Victoria, Victoria, British Columbia

来源：

INTERNATIONAL JOURNAL OF ENERGY RESEARCH | 1995年 / 19卷 / 09期

关键词：

TRANSIENT HEAT TRANSFER; HEATING; GEOMETRICAL OBJECTS; ANALYTICAL TECHNIQUE; SURFACE TEMPERATURE; CENTER TEMPERATURE;

D O I：

10.1002/er.4440190906

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This study presents a simple technique of determining surface temperature values and/or distributions of solid objects of various geometrical shapes (e.g. infinite slab, infinite cylinder, and sphere) during heating in a medium under natural or forced convection conditions. In the model, the boundary condition of the third kind (i.e., 0.1 < Bi < 100) in transient heat transfer, which is commonly encountered, is used. In many practical applications ranging from metallurgy to food engineering processes, the measurement of surface temperatures of such solid objects is a remarkable problem; however, centre temperature measurements are quite easy. For this reason, simple and accurate models are required for use in practice. The proposed model depends on the centre temperature and determines the surface temperatures using the centre temperature measurements. In order to test the present analytical model, an actual example for a slab object was given and the centre and surface temperature profiles were drawn. In addition, the centre and surface temperature distributions for infinite slab, infinite cylinder, and sphere were computed for the values of 0.1, 1, 10, and 100 of the Blot number and were exhibited as reference graphics. As a result, the present model is capable of determing surface temperatures of various geometrical objects heated in any medium using their centre temperature measurements in a simple and accurate manner.

引用

页码：803 / 811

页数：9

共 17 条

[1]

Ansari F.A., Afaq A., Precooling of the cylindrical food products, Int. J. Refrigeration, 9, pp. 161-163, (1986)

[2]

Arpaci V.S., Conduction Heat Transfer, (1966)

[3]

Carslaw H.S., Jaeger J.C., Conduction of Heat in Solids, (1973)

[4]

Chang K.C., Payne U.J., Analytical solution of heat conduction in a two‐material‐layer slab with linearly temperature dependent conductivity, ASME J. Heat Transfer, 113, pp. 237-239, (1991)

[5]

Dincer I., An approach for determining the temperature distributions during heating of plate products, Int. Comm. Heat Mass Transfer, 18, pp. 629-638, (1991)

[6]

Dincer I., Methodology to determine temperature distributions in cylindrical products exposed to hydrocooling, Int. Comm. Heat Mass Transfer, 19, pp. 359-371, (1992)

[7]

Dincer I., A simple solution for transient heat transfer during heating of a slab product, Int. J. Energy Research, 17, pp. 341-347, (1993)

[8]

Dincer I., Heat transfer coefficients for slab shaped products subjected to heating, Int. Comm. Heat Mass Transfer, 21, pp. 307-314, (1994)

[9]

Gebhart B., Heat Conduction and Mass Diffusion, (1993)

[10]

Grandjean B.P.A., Thibault J., A new criterion for assuming negligible internal thermal resistance in transient heat conduction problem, ASME J. Heat Transfer, 113, pp. 239-242, (1991)

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