Input Output Reference — EnergyPlus 23.1

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Standard EnergyPlus Conditions[LINK]

Standard Temperature and Pressure[LINK]

Several objects specify inputs at “standard temperature and pressure”. Standard Temperature is dry air at 20o C drybulb. The program uses local barometric pressure to account for altitude using the equation for “standard atmospheric” pressure on p 6.1 of the ASHRAE 1997 HOF (SI edition) to initialize the air systems being simulated.

Stdpressure=101325(1.0Z2.255775)5.2559

where

StdPressure = pressure {Pa}

Z = altitude/elevation {m}