Search results for query: *

Hi Max, I’ve come across this problem a few times on natural gas compressor stations. Some of the above posts refer to JT cooling across the orifice, but this only helps you with the temperature downstream of the orifice. If I read your question right, you are only interested in the minimum...

Hello, I'm designing an instrument gas system for a natural gas metering station. Its in a remote Australian location and requires gas to actuate some valves. The supply pipeline operates at up to 12,000 kPa and the instrument gas is typically 800 kPa so there's lots of JT cooling but a very...

The auto ignition temperature of Methanol is 386°C. I can't see why this would change with the addition of water.

That's easy - work out the volume of the pipeline, then fill it with that much water. You shouldn't be using a gas for pressure test purposes. If there is a defect in the pipeline (and if that wasn't a possibility you wouldn't have to test it) using an incompresible fluid like water will cause...

Does pressure drop due to friction in a gas pipeline result in a Joule-Thompson temperature drop? I believe it does, but my colleague disagrees. I'm asking because he has a very accurate gas pipeline modelling spreadsheet and isn't sure if JT effect should be included in it or not. Expert...