Infiltration modeling guidelines for commercial building energy analysis

Gowri, Krishnan ; Winiarski, David W. ; Jarnagin, Ronald E.

Pacific Northwest National Laboratory (U.S.)

关键词: Sensitivity Analysis;    Energy Efficiency, Energy Simulation, Infiltration Modeling, Energyplus;    Weather Energy Efficiency, Energy Simulation, Infiltration Modeling, Energyplus;    Air;    Energy Analysis;   

DOI  :  10.2172/968203
RP-ID  :  PNNL-18898
RP-ID  :  AC05-76RL01830
RP-ID  :  968203

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report presents a methodology for modeling air infiltration in EnergyPlus to account for envelope air barrier characteristics. Based on a review of various infiltration modeling options available in EnergyPlus and sensitivity analysis, the linear wind velocity coefficient based on DOE-2 infiltration model is recommended. The methodology described in this report can be used to calculate the EnergyPlus infiltration input for any given building level infiltration rate specified at known pressure difference. The sensitivity analysis shows that EnergyPlus calculates the wind speed based on zone altitude, and the linear wind velocity coefficient represents the variation in infiltration heat loss consistent with building location and weather data.