[Bldg-sim] DOE-2 - Heating loads

[Chris Jones]

You can report the heat used by each system and you can report the 
plant heat used as well for each hour of the year.
Do you have the DOE2.1e Supplement?  You will find detailed 
instruction on how to get hourly reports at the loads, system and plant levels.



At 12:30 PM 10/12/2010, Eduard Cubi wrote:
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>Dear all,
>
>I am trying to calculate the heating loads of a residential tower 
>using DOE 2.1E, and I'm having some trouble.
>
>Here is what I want:
>
>-       Hourly values of heating load of a residential tower. i.e., 
>"heat" that the system must supply to keep the temperature setpoint
>-       The load values should correspond to a building in which (in 
>addition to occupancy and plug loads) the setpoint temperature 
>changes according to a schedule defined by me (since it is a 
>residential building, the temperature setpoint would drop when 
>occupants are at work or sleeping)
>
>This is the problem I have:
>
>-       According to the DOE manual, the values of the "loads" 
>report are based on the assumption that the space is kept at a 
>constant temperature (the default is 74F, but can be changed)
>-       The manual also says that the "loads" are corrected in the 
>"systems" calculation. The "loads" report in the "systems" section 
>provides values that (in many hours of the year) differ from those 
>in the "loads" report in the "loads section". However, I think these 
>may be adjusted to account for the heat gains, but they are not 
>adjusted according to the temperature setpoint schedule.
>
>Finally, these are my questions:
>-       Is there a variable in either the "loads" of "systems" 
>section that corresponds to what I'm looking for?
>-       If not, is there a way to simulate an "ideal" system (if so, 
>I could use its energy (fuel) use)
>-       Any general comments on this?
>
>Thanks so much in advance for your help!!
>
>Yours,
>
>Eduard
>
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Chris Jones
14 Oneida Avenue
Toronto, ON M5J 2E3.
Tel.  416-203-7465
Fax. 416-946-1005