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Type 16a a bit better but...
- Date: Mon, 17 May 2004 17:24:47 +0200
- From: "Pietro Filippi" <P.Filippi@xxxxxxxxxx>
- Subject: Type 16a a bit better but...
Title: Messaggio
Hi to
all,
Maybe I
understand: type 16a output is in KJ/hr m2, with monthly data of radiation,
as daylight decreases the specific radiation increases since the total per day
must be constant...so with monthly data in the first part of the year specific
radiation is approximately overestimated in the first part of a month and
underestimated in the second one (viceversa in the second part of the
year).
More over, having a
look to the equations of type 16 the peaks seem due to trigonometric
relationships connected to the orientation of the surface and the position of
the sun.
If it is so,
questions now are:
- How to control
these peaks?
- How big is the
influence during simulation with type 56 Multi Zone Building? Actually it
doesn't seem to be neglictible... every month Solar Rad Processor
output has a trend which is reasonable more or less the opposite of the one
of real radiation data from which mean values were
calculated!...
Waiting for
suggestions...
Kind
regards
Pietro
Filippi
Ing. Pietro
Filippi
Nier Ingegneria
SpA
Via Altabella 3,
40126 Bologna
tel: 051234359
fax: 051239530