All,
This started out to be a question, but in the course of making it
intelligible I discovered the answer.
My objective was to set the user default expression for fin tube
radiation to something like 30 BTUH per square foot in each zone.
However I couldn't figure out how to get the AREA defined by the SPACE
which corresponds to the ZONE into the zone's user expression...
SPACE is not a parent, grandparent or great grandparent of a ZONE -- and
the #P (Parent) funtion was on the frontier of my BDL knowledge. So
after a couple hours of headbanging while reading the "KEYWORD
EXPRESSIONS / BDL Functions" subsection of the "Building Description
Language" chapter of the DOE-2.2 Vol 3: 'Topics' manual, I was ready to
throw in the towel and ask the group, as nothing was coming up on an
archive search.
But in the process of writing this e-mail, I chanced to read the #LR
(LocalRef) definition one last time and the light bulb went on. So here
it is, a very simple user default expression for zone fin tube radiation
HEATING-CAPACITY, set to 30 BTUH per square foot (negative sign req'd by
convention):
#LR("SPACE","AREA")*-30 $ as entered into eQuest
HEATING-CAPACITY = {#LR("SPACE","AREA")*-30} $ as stored in the .inp
file
Enjoy, my head is still hurting...
Brandon Nichols, PE, LEED(r) AP
Yes, my head really is hurting...!
Just in case you're actually following this example, the keyword for
zone baseboard heating capacity is BASEBOARD-RATING
#LR("SPACE","AREA")*-30 $ as entered into eQuest
BASEBOARD-RATING = {#LR("SPACE","AREA")*-30} $ as stored in the .inp
file
Brando