Re: [EnergyPlus_Support] HVAC sizing

Whatever you specify as applicable on a Winter DesignDay is included. Most designers calculate heating loads, however, with zero lights (or maybe 5% for security lights), zero equipment and zero people.

Most of the time, this makes sense, e.g., a long holiday such as Christmas or New Year, when everyone is gone and the building is quiet and dark.Â the Schedules might look something like:

SCHEDULE:COMPACT
Sched_PeopleAssembly
Fraction
Through: 12/31
For: Weekdays
Until: 8:00,0.00
Until: 11:00,0.20
Until: 18:00,0.80
Until: 22:00,0.20
Until: 23:00,0.10
Until: 24:00,0.00
For: Saturday
Until: 8:00,0.00
Until: 11:00,0.20
Until: 21:00,0.60
Until: 22:00,0.80
Until: 23:00,0.10
Until: 24:00,0.00
For: Sunday Holidays
Until: 8:00,0.00
Until: 13:00,0.10
Until: 22:00,0.70
Until: 23:00,0.20
Until: 24:00,0.00
For: SummerDesignDay
Until: 8:00,0.00
Until: 11:00,0.20
Until: 18:00,0.80
Until: 21:00,0.70
Until: 22:00,0.80
Until: 23:00,0.20
Until: 24:00,0.00
For: WinterDesignDay AllOtherDays
Until: 24:00,0.00

SCHEDULE:COMPACT
Sched_LtgAssembly
Fraction
Through: 12/31
For: Weekdays
Until: 6:00,0.05
Until: 9:00,0.40
Until: 22:00,0.75
Until: 23:00,0.25
Until: 24:00,0.05
For: Saturday
Until: 7:00,0.05
Until: 9:00,0.30
Until: 23:00,0.50
Until: 24:00,0.05
For: Sunday Holidays
Until: 7:00,0.05
Until: 12:00,0.30
Until: 22:00,0.65
Until: 24:00,0.05
For: SummerDesignDay
Until: 6:00,0.05
Until: 9:00,0.40
Until: 22:00,0.75
Until: 23:00,0.50
Until: 24:00,0.05
For: WinterDesignDay AllOtherDays
Until: 24:00,0.00

SCHEDULE:COMPACT
Sched_PlugsAssembly
Fraction
Through: 12/31
For: Weekdays
Until: 6:00,0.05
Until: 9:00,0.40
Until: 22:00,0.75
Until: 23:00,0.25
Until: 24:00,0.05
For: Saturday
Until: 7:00,0.05
Until: 9:00,0.30
Until: 23:00,0.50
Until: 24:00,0.05
For: Sunday Holidays
Until: 7:00,0.05
Until: 12:00,0.30
Until: 22:00,0.65
Until: 24:00,0.05
For: SummerDesignDay
Until: 6:00,0.05
Until: 9:00,0.40
Until: 22:00,0.75
Until: 23:00,0.50
Until: 24:00,0.05
For: WinterDesignDay AllOtherDays
Until: 24:00,0.00

On Tue, Jul 31, 2018 at 2:07 PM, my_sunny_night@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

Â

Hello All,
Is the internal heat gain from occupants taken into account for heating equipment sizing?
Thanks

James V Dirkes II,Â CEO / President
The Building Performance Team Inc.
1631 Acacia Dr, Grand Rapids, MI 49504

(alphabet soup of efforts for greater understanding: PE, BEMP, BCxP, LEED AP)

Direct / Mobile: 616.450.8653
jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx

Website l Â LinkedIn

Coffee conversation:

A friend describes himself as â??mediocreâ??. In my estimation, heâ??s clearly amazing and exceptional, so it irritates me to hear him say that. Upon some reflection, I realize that he may be right.

Only one person in the world is the (literal) worldâ??s best. All of us can improve and should be actively improving. That means weâ??re all in the middle ? a mediocrity of sorts. Maintaining a sensse of our need to become better and appreciation of othersâ?? greater talents is also a way to maintain healthy humility. I think Iâ??m up for mediocrity ? in a wonder-filled, amazing sort of way.