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Yep.. thats what they want to do here.. Ive told them the hazards involved in stacking containers is greater than the potential hazard of a porcelain explosion (very windy here) also Ive asked for guarantees of compensation if they break anything and shut us down

David, you state "Flow rate is a function of dP, pipe size, pipe length, and pipe roughness." is there one calcualtion that ties all these factors in ? eg can I calculate dp if I know the other variables ?

ScottyUK.. thanks... thats the one that is afecting my sub station.. they are coming to put protection around it.

No prob using potable water supply. The header tank will be filled by hose so no physical connection. I intend to change from glycol injection for hydrate prevention to using a KHI chemical. This means I wil reduce from 400 litres/hour MEG injection to 2 litres/hour KHI. Therefore I need to use...

Just had visit from electric transmission company. He wants to erect a wall around our transformer compound to protect personnel. They have had 2 instances of the porcelain 132 CT exploding and need to replace all of them right across the country (big job). Anyone heard of this problem ? Sorry I...

Well the water is simply tap water (it comes from the same supply as the canteen) The pump is a small variable stroke piston pump. It flows from 20-100 litres/hour at a discharge pressure of 150 barg. Sorry if I was a bit vague I was just looking for a general idea of opinions when you change...

The pump is designed to pump glycol. I want to use it to pump water instead.

I'm trying to think of a reason why I should NOT use a positive displacement pump which was previously used to pump glycol to pump water. I can't think of a reason why I should not, anyone have any thoughts ?

Artisi, you state that 60 gpm will require in excess of 452 psi for flow to take place. Can you tell me how you calculated this please ?

thanks.... no wonder I could not calculate it the way I tried ! I can just use a pressure drop calculation then given that I know flow and velocity ?

I have gas flowing through a pipe and have calculated the velocity. I now need to decrease the velocity for a pigging operation. I can calculate the flow I need at the new velocity but need to work out the pressure at these conditions. Does anyone have a link to an online calculator or any othe...

what does ^ denote ? is it divide ? I assume * is multiply ? and should there be ( ) around the entire equation ? I will look up the equation in GPSA... thanks

Basically I need to know roughly the water content to calculate how much MEG to inject to prevent hydrate formation. Thanks David I will give your suggestion a go.

Anybody know of a quick and simple way of determining how wet a gas is coming from a well ? I'm thinking of something like a draeger or kitigawa sample tube/hand pump.

sorry it's been a few years since I was on that project I don't have any details at all

Other than :- friction obstructions such as bends,injection quills etc gravity gradient thermal expansion/contraction compressibility factors Is there anything else I should be taking into account when calculating pressure drops in a 7km pipe run flowing natural gas ?

Thanks very much, when I started out in chem eng there were not even calculators invented, I used a slide rule. Can you,nowadays,imagine working without even excel, let alone something like HYSIS ? And I guess you have heard this before but I wish you Americans would go metric, however it's...

Montemayor, that sheet you mention would be a great help to me but I can't locate it on the forums (tried everything)

thanks ash9144 just what I was looking for. orenda 1168 thanks but I needed a metric calculator katmar.. wow !! thanks very much.. that is some tool..!!

It's injected into the combustion side. I think to reduce NOx in the exhaust.