Recent content by ratash

Thanks. It is natural gas. We normally blowdown stations in 3 minutes, but my load is huge and would require an unreasonable stack height.

Where can I find sizing procedure for vent stack diameter and height determination. I have my max blowdow rate at 1,500,000 lb/hr (799 MMscfd). Thanks. .

Does anyone have a nomogragh for sizing a short gas line?

Thanks.

Thanks. Why sudden vacuum causes pressure surge. Are saying reverse flow occurs when we get column separation? What kind of check valve down stream of the pump is used?

In slack flow the pressure reaches vapor pressure of the water, water will vaporize and as a result of reduction in pressure the dissolved air will come out(although it is very small). In fact, the air bubble come out first followed by water bubbles.

Thank you for the great information. Is there an article on the net about start up, normal, and shutdown procedure of a water pipeline?

Thank you so much, I will check it out. What is the name of the book?

Thanks.

Thanks, but why no?

If your water pipeline is designed for slack flow with no air release or vacuum breaker, and you start with a fixed amonut of dissolved air in your water at pump suction, pump it through the pipeline (hilly)and then discharge it to the same pressure as source pressure (pump suction pressure...

Thanks.

Thanks.

Thanks. Any idea on solving the differential equations for me?

Thanks.