P11 the chromium molybdenum composition which has 1% of chromium and molybdenum by 1/4% .
Whereas P12 is the chromium molybdenum composition which has 1% of chromium and 2% of molybdenum.
When an expansion is joint needed on the shell side of a shell and tube heat exchanger?
When should one be concerned with the tube wall temperature on the cooling waterside of a shell and tube exchanger?
Can large temperature differences in vaporizers cause operational problems?
What effect does choking a vertical thermosiphon have on the heat transfer rate?
What is a good relation to use for calculating tube bundle diameters?
How can one quickly estimate the additional pressure drop to be introduced with more tube passes?
What is a good approximation for the heat transfer coefficient of hydrocarbons inside 3/4" tubes?
What is some good advice for specifying allowable pressure drops in shell and tube exchangers for heavy hydrocarbons?
Is it ever advantageous to use shells in series even though it may not be necessary?
What is the best way to control an oversized, horizontally oriented shell and tube steam heater?
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