Vapor pressure
Thread Content
When developing a steam emergency plan, if a compressor that consumes 200 tons of steam per hour suddenly stops operating, while the boiler continues to supply 200 tons of steam per hour to the pipeline network, how long will it take for the pressure in the steam pipeline network to rise from 11.5 MPa to 11.9 MPa? (Normal operating steam pressure is 11.5 MPa, 515°C)
Use Aspen for the calculation; the volume is known, as are the temperature and pressure, so the amount of steam can be calculated
The volume of the entire pipeline network needs to be known in order to make the calculation. Furthermore, for such an important steam pipeline network, the design will certainly take into account normal and emergency venting in case of various situations. The time can be calculated by subtracting the total amount of steam that can be stored at 11.5 MPa from the total amount that can be stored at 11.9 MPa (since it is superheated steam, we assume the temperature remains constant), then subtracting the amount of steam that can be released; finally, dividing this result by the steam flow rate entering the pipeline system.
It’s not a compressor, it should be an expander