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There are two blowers on the fired heater at our facility. To switch the blowers the heater must be shut down and the standby blower then started. The standby blower cannot be started with the online blower in operation. Once the discharge valve on the standby blower is opened the heater trips...

At our facility there is a liquid hydrocarbon stream (mainly heavy hydrocarbons) leaves a vessel at -22degrees celsius and a flowrate of 59 cubic metres/hr. It flows through a level valve which maintains the vessel level and into a heat exchanger. Downstream of the level valve there is a phase...

Can anyone give me some information on active and inactive thrust bearings.I have heard about them but what are they used for?

What is the difference between an excess flow check valve and a normal check valve. We have an excess flow check valve in one of our systems and I would like some more information on this valve.

I need some information on dry gas seals. Anyone knows of any sites?

Can anyone tel me about the use of inlet guide vanes and the advantages of its use. Are there any sites for more information.

At our facility we vaporize liquid nitrogen from a storage tank with an ambient air vaporizer. How can this vaporizer fail and allow liquid nitrogen into the gaseous notrogen header. Are there any site to check for vaporizer failures.

Can someone indicate the differences in safety valves and relief valves and what each is used for.

I would like some information on double containment LNG storage tanks or any links where I could find information.

Can anyone provide details about rollover in LNG storage tanks and how can it be prevented?

ris2 (Chemical) Mar 4, 2004 I want to calculate the flow rate from a vertical vessel to a closed tank. I know the pressure in the vertical vessel and the line size to the tank. I know also the pressure in the closed tank. What other information do I need and what calculation can I use? There...

I want to calculate the flow rate from a vertical vessel to a closed tank. I know the pressure in the vertical vessel and the line size to the tank. I know also the pressure in the closed tank. What other information do I need and what calculation can I use? There is a level valve downstream of...

Can anyone answer that question as well as what prevents water from entering the flare system ?

I am loooking for reduction in efficiency and underperformance in these types of reboilers. Are there any sites I can check for this information?

Can someone give me some information or a website to check ? Thanks

Which is the more efficient?

Where can I find information on the differences between impulse and reaction turbines on the internet?

I need some information on amine systems and the foaming problems associated with them.

What types of corrosion occurs in amine system and wher can I find this information on the net?

What site can I check for information on clutches with useful information?