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For years I have always known that Methyl Alcohol has been used as a method of removing water from natural gas piping. For example - a pressurized natural gas pipe has a small amount of water trapped in it. Some in the liquid phase, some in the vapor phase. The water, under certain flow...
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Air at atmospheric pressure (14.7 PSIA) enters the inlet of a simple air compressor at 50 Deg F. drybulb and 50% RH. The air exits the compressor at 80 Deg F. drybulb at 90 PSIG. How do you calculate the RH of the compressed air?
Any help would be greatly appreciated!
Thank you,
TB
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A recently installed natural gas main is showing evidence of water infiltration. Water is getting into the customers regulator and meter and freezing. The gas main was cleaned and "pigged" after the installation. The system is currently operating at an MAOP of 60 PSIG.
When the main was...
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When I import an SW file into AutoCad via "Exchange Works" the part always imports larger into AutoCad than it's actual size in SW. For example: a part that has a length dimension in SW of 10.11 inches in SW has to be scaled down in AutoCad by 0.0393 to get the 10.11 inches. I checked my...
I have been an AutoCad user for years. A year ago my company purchased an AutoCAD add-on called Mech-Q pipe. This add on gives you a number of fittings (in 2d & 3d) welded, threaded, etc .... elbows, flanges, tees, threadolets, etc... My company is thinking of making the jump to SW. I've poked...
I am trying to calculate the flow rate of natural gas through an upstream valve on a block and bleed set up on a large boiler. The purpose of this is to determine the flow rate so that I can size the vent line off the bleed-off.
Here is what I am working with:
P_atm = 14.7 PSIA
P_base = 14.7...
I'm doing a vent line calculation for 2.0 PSIG natural gas to 14.70 PSIA across several feet. The line is made up of three different lengths + many fittings.
Here is my approach:
Using a fittings chart - I converted all the fittings to equivalent lengths of pipe. Then, assuming that the...
Years ago I used a simple furmula to convert one pipe size to another in terms of equivelent length. I.E. 20ft of 2" SCED40 Steel is equivelent to 7.2 Ft of 3" Sched 40. I realize the I can do this with the K values if f is known. I think the equation came from the "Pipeline rules of thumb". I...
I'm looking for the Cp (at about 60 Deg F) of #5 oil. I really need the Cp of waste oil - but I think #5 will be close enough for what I am trying to calculate.
Thanks...
