Heal Transfer

The exterior of the conductor and the interior of the enclosure are painted with non-magnetic matt finish black paint to improve the heal transfer due to radiation. 

Gupta. C.P., and Prakash, R., Engineering Heal Transfer, Nemchand Bros, Roorkee, India. 

One of the simplest and cheapest types of heat exchanger is the concentric pipe arrangement known as the double-pipe heat exchanger. Such equipment can be made up from standard fittings and is useful where only a small heal transfer area is required. Several units can be connected in series to extend the capacity. ... 

The shell ami tube exchanger is by far the most commonly used type of heal transfer equipment in the chemical and allied industries. The advantages of this type are... 

Essentially, a shell and lube exchanger consists of a bundle of lubes enclosed in a cylindrical shell. The ends of the lubes are fitted into tube sheets which separate Ihe shell-side and lube-side fluids. Baffles are provided in the shell to direct the fluid flow and increase heal transfer. ... 

In direct contact heal exchange, there is no wall to separate hot and cold streams, and high rales of heal transfer are achieved. Applications include reactor off-gas quenching, vacuum condensers, desuperheating, and humidification. Water-cooling lowers are a particular example of a direct contact heal e.xchanger. In direct contact cooler-condensers, the condensed liquid is frequently used as the coolant. 

Heal transfer area, referenced to inside, i, or outside, o, sq ft... 

Leung, J. C. and Epstein, M., A Generalized Correlation for Two-Phase Nonflashing Homogeneous Choked Flow, Trans. ASME—Journal of Heal Transfer 2 (2), 528-530, May-... 

Chilton, T. H. and A. P. Colburn, Heal Transfer and Pressure Drop in Empty Baffled and Packed Tubes, Part II, Pressure Drop in Packed Tubes, Trans. Am. Inst. Chem. Engrs. 26, 178, 1931. 

Aj = area of inside of surface for heaL transfer, such as coil, flat surface, or other barrier, sq ft/ft hi = inside heat transfer fluid side coefficient, in coil, flat plate, or other barrier, BLu/hr/sq fl/°F r0 = fouling resistance (factor) associated with fluid on outside (tank process side) of heat transfer... 

Froude number, 304 Heal transfer, 312 In baffled tanks, 301 Performance relationships, mixing variables, 306... 

Fa Fourier Out Dt W P Unsteady stale heal transfer/mass transfer... 

Minkowycz, W.J. Handbook of Numerical Heal Transfer (Wiley, New York, 1988). 

Dittos, F.W. and Boelter, L.M.K. Univ. of California, Berkeley, Pubns in Engineering 2 (1930) 443. Heal, transfer in automobile radiators of the tubular type. Reprinted Inti Cnmm. Heat Mast Transfer 12 (.1985) 3. 

Rhodes, F.H. and Younger, K.R. Ind. Eng. Chem. 27 (1935) 957. Rate of heal transfer between condensing organic vapours and a inetal tube. 

There have been comparatively few experimental studies in this area and the results of different workers do not always show a high degree of consistency. Frequently, estimates of mass transfer coefficients have been made by applying the analogy between heat transfer and mass transfer, and thereby utilising the larger body of information which is available on heaL transfer. 

Bergles, A. E., R. F. Lopina, and M. P. Fiori, 1967b, Critical Heat Flux and Flow Pattern Observations for Low Pressure Water Flowing in Tubes, Trans. ASME, J. Heal Transfer 59 69-74. (6)... 

Gorenflo, D., 1984, Behaltersieden, VDI-Warmeatlas, 4 Aufl., Abschnitt Ha VDI-Verlag, Dusseldorf. (2) Gorenflo, D., V. Knabe, and V. Bieling, 1986, Bubble Density on Surfaces with Nucleate Boiling—Its Influence on Heat Transfer and Burnout Heat Flux at Elevated Saturation Pressure, 8th Int. Heal Transfer Conf, Vol. 4, San Francisco. (2)... 

Monde, M., H. Kusuda, and H. Uehara, 1982, Critical Heat Flux during Natural Convective Boiling in Vertical Rectangular Channels Submerged in Saturated Liquid, Trans. ASME, J. Heal Transfer 704 300-303. (5)... 

Stemerding, S., and Verschoor, H., Proc. Gen. Discussions on Heal Transfer, London, September 1951. (Inst. Mech. Engrs., London Am. Soc. Mech. Engrs., New York.)... 

H. Grober, S. Erk, and U. Grigull, Fundamentals of Heal Transfer, McGraw-Hill, i ew York, 1961. 

Poirier. D.R. and G.H. Geiger Heal Transfer Purulamenhilv for Metal Catting. 

Barron. R.F. Cryogenic Heal Transfer, Hemisphere Publishing Corporation. New York, NY. 1999. 

Heinneh. J.C.. D.W. Pepper intcrmediale Finite Element Meihinf Final Flaw and Heal Transfer. Taylor Francis. Inc.. Philadelphia. PA. 1997. 

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