Page 205 - Applied Process Design For Chemical And Petrochemical Plants Volume III

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168 Applied Process Design for Chemical and Petrochemical Plants

Table 10-26
Maximum Flux at Critical Temperature Difference for Various Liquids Boiling in Pools Heated
by Steam Condensing inside Submerged Tubes

Tubes
Liquid Surface on Boiling Side Liq. Temp. (°F) Max. Flux Q/A *Critical t, t o (°F)

Ethyl acetate Aluminum d 162 a 42,000 80
Ethyl acetate Slightly dirty copper d 162 a 62,000 57
Ethyl acetate Chrome-plated copper d 162 a 77,000 70
Benzene Slightly dirty copper d 177 a 43,000 100
Benzene Aluminum d 177 a 50,000 80
Benzene Copper d 177 a 55,000 80
Benzene Chrome-plated copper d 177 a 69,000 100
Benzene Copper d 177 a 72,000 60
Benzene Chrome-plated copper d 177 a 70,000 100
Benzene Steel d 177 a 82,000 100
Carbon tetrachloride Dirty copper d 170 a 47,000 83
Carbon tetrachloride Copper d 170 a 58,000 79
Heptane Copper d 209 a 53,000 55
Ethanol Aluminum d 173 a 54,000 90
Ethanol Copper 173 a 80,000 66
Ethanol Slightly dirty copper d 173 a 93,000 65
Ethanol Grooved copper d 173 a 120,000 55
Ethanol Chrome-plated copper d 173 a 126,000 65
Propanol Polished nickel-plated copper d 127 67,000 91
i-Propanol Polished nickel-plated copper d 151 90,000 84
i-Propanol Polished nickel-plated copper d 175 a 110,000 96
Methanol Slightly dirty copper d 149 a 78,000 92
Methanol Chrome-plated copper d 149 a 120,000 110
Methanol Steel d 149 a 123,000 105
Methanol Copper d 149 a 124,000 115
n-Butanol New nickel-plated copper d 173 79,000 83
n-Butanol New nickel-plated copper d 207 92,000 79
n-Butanol New nickel-plated copper d 241 a 105,000 70
i-Butanol Polished nickel-plated copper d 222 a 115,000 85
Water Polished nickel-plated copper b 131 115,000 53
Water Chrome-plated copper c 110 150,000 . . .
Water Chrome-plated copper c 130 175,000 65
Water New nickel-plated copper b 155 190,000 . . .
Water Chrome-plated copper c 150 220,000 64
Water Chrome-plated copper c 170 243,000 64
Water Polished nickel-plated copper b 171 250,000 72
Water New nickel-plated copper b 191 260,000 . . .
Water Chrome-plated copper c 190 300,000 70
Water Chrome-plated copper b 212 a 330,000 80
Water New nickel-plated copper b 212 a 360,000 68
Water Polished nickel-plated copper b 212 a 370,000 72
Water Chrome-plated copper c 212 a 390,000 72
Water Steel d 212 a 410,000 150
*The overall temperature difference t o is defined as the saturation temperature of the steam less the boiling temperature of the liquid.
a Boiling at atmospheric pressure.
b Steam side was promoted with Benzyl Mercaptan.
c Steam side was promoted with Octyc Thiocyante.
d Steam probably contained a trace of Oleic acid.
Used by permission: McAdams, W. H. Heat Transmission, 3 Ed., p. 386, ©1954. McGraw-Hill Book Co., Inc. All rights reserved.
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