I’m not certain if this applies to nodes, but it may. The airflow network does calculate zone pressures, and it is possible to define ducts and friction losses
(though I broke the analysis code with my last try to model a mechanical system in the airflow network model), so it may be that the node pressures can be reported with variation when using a full airflow network simulation.
Ned Lyon, P.E. (MA, WV)
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From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Thursday, April 27, 2017 2:21 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Pressure drop
No. E+ does not calc hydraulics. You need to use ems or some other objects to change fan energy.
Am 23.04.2017 3:04 nachm. schrieb "alyelhefni@xxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>:
Why does system node pressure in the output file give same pressure for each node on the same branch?
I expect it shows different values where after each component of the system a decrease in the value of pressure should happen. Why are the system node pressure values constant ?
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Posted by: "Edward G. Lyon" <EGLyon@xxxxxxx>
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