12.07.2015 Views

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

DOE-2 Reference Manual Version 2.1 - DOE2.com

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

3. DESIGN-DAYNote: If the user wishes to use weather data from only the weather file,that is, no design day data, he may skip this section on DESIGN-DAY andgo on to th e next sect i on .It is possible for the user to supplement or even to override the weatherfile data by specifying up to 3 DESIGN-DAYs. This would be done (1) ifthe user feels that the one year of data contained on the weather file isnot typical, or (2) if the user wishes to design the building for themost extreme weather conditions possible at its location. In this case,the peak cooling and heating loads used in the equipment sizing calculationsin SYSTEMS and PLANT are the peaks generated during the DESIGN-DAYRUN-PERIOD intervals. If no DESIGN-DAYs have been specified, then thepeak heating and cooling loads are calculated by the program, using theweather file for the RUN-PERIOD intervals.Associated with each DESIGN-DAY instruction is one RUN-PERIOD interval.The DESIGN-DAY data apply to every day in the RUN-PERIOD interval,whether the RUN-PERIOD is one day long or longer.The RUN-PERIOD and DESIGN-DAY instructions must be entered in a precisemanner to get the desired results. The first RUN-PERIOD interval isassociated with the first DESIGN-DAY instruction, the second RUN-PERIODinterval is associated with the second DESIGN-DAY instruction, and so on.Any RUN-PERIOD intervals in excess of the number of DESIGN-DAYs will beused for simulations that use data from the weather file. These extraRUN-PERIOD intervals should occur last in the RUN-PERIOD instruction.Therefore, if the user desires to use weather data in any situation, thenumber of RUN-PERIOD intervals must be greater than thenumber ofDESIGN-DAY instructions.Examp 1 e:RUN-PERIODJAN 01 1979 THRU JAN 01 1979 $FIRST DESIGN-DAY'$ INTERVAL$'$JUL 15 1979 THRU JUL 19 1979 $SECOND DESIGN-DAY'$INTERVAL$'$DEC 10 1979 THRU DEC 13 1979 '$THIRD AND LAST '$'$POSSIBLE DESIGN-DAY '$'$ INTERVAL'$JAN 01 1979 THRU DEC 31 1979 .. '$USE WEATHER FILE '$$DATA FOR ENTIRE YEAR'$DD-l = DESIGN-DAY '$DATA FOR FIRST '$'$DESIGN-DAY'$'$ INTERVAL'$II I. 25 (Revised 5/81)

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!