Fan Energy Index (FEI) calculations use reference standard air density at elevation instead of at sea level

[rraustad]

Issue overview

Work on node initializations (#10485) revealed an issue with fan FEI calculations. The reference standard air density should be at sea level and the fan inlet air density should be a moist air density at some reference temperature and humidity ratio (e.g., 21 C and 50%).

Details

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• Platform (Operating system, version)
• Version of EnergyPlus (if using an intermediate build, include SHA)
• Unmethours link or helpdesk ticket number

Checklist

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• Defect file added (list location of defect file here)
• Ticket added to Pivotal for defect (development team task)
• Pull request created (the pull request will have additional tasks related to reviewing changes that fix this defect)