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Anyone have any ideas besides our friends from Graham??

Anyone know of any other vacuum condenser vendors besides Graham?? Thanks

Anyone know of any "free" websites where i can get the density of SA-106, Grade B? Thanks

I am using HTRI and would like some recommendations for good tube and shell velocities for liquids and gases. Right now i am using 0.75 inches for the tubes with liquid in both the shell and tube. However, my tube velocity is 0.02 m/s. I read that 1-3 m/s (3-10ft/s) are good velocity numbers in...

If i am given the surface area of a shell and tube HX, does it mean total tube surface area or does is also include inside shell surface area.

Can anyone explain to me the difference between an oil recovery system using an eductor (hot gas driven) vs an oil distiller? I am not really an HVAC guy but involved in a chiller assigment. Am I right in assuming that the eductor system will boil off any refrigerant in the mixture? thanks

From a fabrication point of view what is the maximum number of tubes passes for a given shell ID. I have an 8 tube pass BEU HX and the shell ID is 21 inches. I wanted to know if this is possible and if anyone has any guidelines for this. For example, no more than Y tube passes for a shell...

Hello All, I would like to know if reaming is essential. Our specification calls for reaming. The vendor stated that their high quality machining equipment produces a hole finish of "125 to 250 ARH, which ordinarily exceeds requirements." If we wanted reaming it would be at a price but didnt...

How do u determine the nozzle sizes for a shell and tube HX? What equation is used?

Hello- I would like to know if anyone can suggest some good books to learn more about the design considerations involved in fired heaters for the petrochemical and refinery industry. I already found a good website (http://www.heaterdesign.com/design5.htm) and would like to buy a book that...