Welding a 4" WOL on a std wt 10" live fuel line. The fuel is gasoline. This line runs from a tank farm some miles away to a port. We are sure the line is completely purged of all air. It would be very difficult to have any flow during the operation.
Must there be a minimum flow to weld...
I am looking for technical literature on in-tank pneumatic blending of fuel oil with a cutter stock to achieve a lower viscosity product. Several people in the local market say “no problem, get a compressor, install an air spider in the bottom of the tank, and let her rip.” And, “we do this all...
Ladies and Gentlemen,
I don’t do heat transfer very often so I thought I post my problem and make sure I’m handling this correctly.
I need to heat asphalt in a tank using pipe coils circulating hot oil. The tank will be agitated and the one-day temperature change would be 307-F to 310-F or...
I’ve never heard of a code required size or a special formula. 650 certainly doesn’t have one. I think you just use common sense considering: 1) the expected flow rate, 2) the frequency of use, and 3) the amount of water expected (in the case of a water bottom collection.)
The expected flow...
Thank you all for you input. However, these suggestion appear to be text books aimed at students. I'm really looking for a reference book for a field engineer that would have tables of heat transfer coefficients for various real-world applications. For example, heat loss in buried pipes, heat...
I would think for vessell capacity calculations you would strap the outside and deduct the plate thickness. Strapping the outside is much easier than the inside. Maybe i'm missing something in your post?
Can anybody please recommend an practical book on heat transfer. Heat transfer is generally outside my field but once in a while I get involved in a heat transfer problems. I'm most interested in heat losses through vessels, pipe lines, and tank coils. I'm looking for practical information...
Well, for a given flowrate, bosting the suction pressure via a booster pump would lower the power consumption of the primary pump, but not the efficiency. However, the booster would likely consuem more than the power saved from the primary pump.
I'm a little confused. Does the tank have an eliptical cross section? Or is it a round tank with an eliptical head?
There are companies that specialize im manufacturing heads. The heads are probably standard ASME shapes and the manufacturers can give you the volume. Try B&W heads in Alabama.
1. I believe the exepmtions provided in tamble E-7 refers to a dyked in containment as defined in NFPA-30.
3. I do not believe E-7 allows you to reduce the amount of freeboard required if you have a floating roof. However, a floating roof will require freeboard and you could take credit...
1. Please clairify this question.
2. The external dyke area is secondary containment. The foundation should also supply secondary containment under the bottom.
3. Some amount of freeboard is required on a tank that has a floating roof. If it is an internal floating roof, you need enough...
how large a drain do you need? If small, how about a solonoid valve which is normally open. Wire it in series with the pump control circuit. If it's a small pump you may be able to put it in series with the pump's power circuit. Can't get much simpeler than that.
We could probably guide you better if you told us what type of piping it is. For example, the requiremnts for a high pressure steam pipe arent the same as those for bulk product transfer.
You want to know the allowable moments and / or stresses in the pipe supports? Or do you want to know the allowable moments and / or stresses in the pipe?
If for the supports you need to look at a relavent code; for steel supports I would use AISC's "manual of steel construction."
If you...
