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[EnergyPlus_Support] Re: Comfort conditions in an outdoor porch - Strategy ?
Hannah,
I did take a look at 'Berkeley Multi-Node Thermal Comfort Model'
about a year back. It was not at a stage of development where I could
use it.
I am very interested in knowing how you used it.
At this point I am planning to use UCBComfort program to get the PMV
and PPD. The input data will be MRT, DBT, RH which I'll get from
EnergyPlus. I'll fudge on air velocity and ignore direct radiation on
the person.
The project is for a real building and the layout of the design is
going to be impacted by the study. So I am also under a time
constraint :-)
Santosh
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Hannah Yan <hannahyan@y...>
wrote:
> E+ won't do well for outdoor. I have using E+ in
> conjunction with Berkeley Multi-Node Thermal Comfort
> Model in analyzing outdoor comfort. The Berkeley model
> can account for direct solar radiation on the body,
> which is typically the most influential factor for
> outdoor comfort. Professor Arens at UC Berkeley would
> have more update info of the model. If this is a
> detailed research project, it's worth to try that.
>
> Hannah
>
> --- "Michael J. Witte" <mjwitte@g...> wrote:
> > I would agree with Mohit that COMIS would not help
> > you much with this problem.
> > Additional points to consider:
> >
> > 1. Solar gains will not enter your porch "zone"
> > unless you define windows for
> > the openings
> >
> > 2. The EnergyPlus thermal comfort calculations do
> > not account for direct
> > sunlight incident on the person.
> >
> > 3. For the thermal comfort calculations, you must
> > specify the air velocity
> > using a schedule.
> >
> > Mike
> >
> >
> >
> > On 30 Apr 2004, at 11:45, Mohit Mehta wrote:
> >
> > > santosh:
> > > you don't need COMIS. i'd suggest you use the
> > Simple Ventilation command. you
> > > can specify a fixed volume of 'outside air'
> > flowing through the porch. just make
> > > sure to accurately input the thermal
> > characteristics of the heavy mass surfaces
> > > in contact with this space, i.e. floor slabs,
> > walls, additional thermal mass (if
> > > any), etc. plus supplementary loads if any. this
> > should get you the 'comfort
> > > conditons' for the space. the MRT output should
> > help in addition to zone temp.
> > > ~m
> > >
> > > santosh_philip <santosh_philip@y...> wrote:
> > > I trying to find out the comfort conditions on an
> > outdoor porch in a
> > > straw bale
> > > building. What times of the year and what times of
> > the day is it
> > > comfortable. If it is
> > > out of the comfort range, what are the factors
> > that make it so
> > >
> > > what strategy do I use to model this ?
> > >
> > > - model the porch as a zone with no systems
> > > - give a value for air changes (this value will be
> > fudged)
> > >
> > > Would this work?
> > > it doesn't take into account air movement on the
> > body
> > > (will COMIS help in this - I have not used COMIS
> > before)
> > >
> > > Am I going about this the right way .... Are there
> > other ways of
> > > approaching this
> > > problem
> > >
> > > Any advice will be appreciated
> > >
> > >
> > > Santosh Philip
> > >
> > >
> > >
> > > The primary EnergyPlus web site is found at:
> > > http://www.energyplus.gov
> > >
> > > The group web site is:
> > > http://groups.yahoo.com/group/EnergyPlus_Support/
> > >
> > > Attachments are not allowed -- please post any
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> > >
> > >
> > >
> > >
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> ========================================================
> > Michael J. Witte, GARD Analytics, Inc.
> > EnergyPlus Testing and Support
> > EnergyPlus-Support@g...
> >
> >
>
>
>
>
>
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