The flow rate in the hydrogen pipeline is too low
Thread Content
Hello everyone: There is currently a hydrogen delivery pipeline with a flow rate of 420 m3/h (operating volume), a pressure of 0.9 MPa (gauge pressure), and a temperature of 40°C. The length of the pipeline is 5000 meters, including the equivalent length resulting from elbows and other components; the pipe specifications are 325x8. As a result, the flow velocity of hydrogen in this pipeline is 1.6 m/s. My question is: Are there any other disadvantages aside from the economic inefficiencies? Can it be transported using this pipe?
The slower, the safer; use a strong horse to pull a light cart.
It’s nothing but waste, those rich folks
With such a low flow rate, it’s problematic when there is condensate present.
Okay. Thank you very much; since the pipes have already been laid, I have no choice but to use this.
Mm-hmm, the operating medium is hydrogen with a purity of 99.9%, and there’s no condensation – thank you.
The hydrogen flow rate is generally kept below 10 m/s. If the owner can ensure the quality of the delivery pipes, for example by ensuring that they pass non-destructive testing and airtightness tests, then there’s no problem; a lower flow rate also makes things safer.
Using such a large pipe for such a small flow rate
The flow rate is so slow; the design margin is too large, which is a bit of a waste. It is indeed very safe.