eriskawk
Chemical
- Aug 31, 2021
- 10
Hi everyone,
I am currently doing modelling of a firewater system at LNG Terminal & Regas Facility using PIPENET both Spray/Sprinkler module (steady state) and Transient module (dynamic) for surge analysis. This is my first time conducting surge analysis using transient module.
In the Spray/Sprinkler module, I got pump discharge pressure at the most remote area = 11.8 bar.
Then I extracted this module into Transient one to conduct surge analysis, and modified some item by only adding non-return valves and deluge valves.
At first I ran the transient module without adding any closure, to ensure that the model is valid before adding more variable further. In this case, I got the discharge pump pressure = 14.96 bar, which was way bigger compared to what I got in the spray/sprinkler module (11.8 bar)
My question is, isn't the result supposed to be equal? As there was no closure added, means it was actually running on steady state condition. (The graphic result is also flat)
Or how is it supposed to be?
Any response is highly appreciated.
Thank you!
Cheers,
I am currently doing modelling of a firewater system at LNG Terminal & Regas Facility using PIPENET both Spray/Sprinkler module (steady state) and Transient module (dynamic) for surge analysis. This is my first time conducting surge analysis using transient module.
In the Spray/Sprinkler module, I got pump discharge pressure at the most remote area = 11.8 bar.
Then I extracted this module into Transient one to conduct surge analysis, and modified some item by only adding non-return valves and deluge valves.
At first I ran the transient module without adding any closure, to ensure that the model is valid before adding more variable further. In this case, I got the discharge pump pressure = 14.96 bar, which was way bigger compared to what I got in the spray/sprinkler module (11.8 bar)
My question is, isn't the result supposed to be equal? As there was no closure added, means it was actually running on steady state condition. (The graphic result is also flat)
Or how is it supposed to be?
Any response is highly appreciated.
Thank you!
Cheers,