[BLDG-SIM] Zone mean radiant temperature in eQuest

[Mahabir Bhandari]

You can use DesignBuilder which is very user friendly and uses EnergyPlus
engine. It is not free but you can download
(http://www.designbuildersoftware.com/designbuilder.php) the fully
functional 30 days evaluation copy for this purpose.

Mahabir
_______________________________________
Mahabir Bhandari, Ph.D.
LEEDR Accredited Professional
DesignBuilder Software
18 Tanglewood Rd.
Amherst, MA 01002
 
Tel: (413) 256-4647
Fax: (413) 256-4823
email: bhandari at designbuildersoftware.com
web: http://www.designbuildersoftware.com

-----Original Message-----
From: Abaza, Hussein [mailto:ABAZAH at ecu.edu] 
Sent: Thursday, November 02, 2006 11:05 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Zone mean radiant temperature in eQuest

Energy plus is also a good alternative. I use it all the time. It is not
as user friendly as some other software, but it might worth learning how
to use it and it is also available for free.
 

Hussein Abaza, Ph.D.
Assistant Professor
Construction Management 
East Carolina University 
Rawl 332 
Greenville, NC   27858-4353 
Phone: (252) 328-4140 
FAX: (252) 328-1165 
Email:  abazah at mail.ecu.edu 
 

-----Original Message-----
From: BLDG-SIM at gard.com [mailto:BLDG-SIM at gard.com] On Behalf Of Gerald
Pde
Sent: Thursday, November 02, 2006 8:58 AM
To: BLDG-SIM at gard.com
Subject: [BLDG-SIM] Zone mean radiant temperature in eQuest

Ecotech has a new version 5.5 and this version has
capability of calculating thermal comfort by
estimating radiant temperatures in a zone. You can
fine more information on the thermal analysis
component at http://squ1.com/ecotect/features/thermal

Hope this helps.

Gerald

--- Graham & Megan <hamnmegs at ozemail.com.au> wrote:

> Has Ecotect advanced its thermal engine? Or ar the
> MRT's you mention
> generated by Energy+?  When I looked at Ecotect some
> 2-3 years ago, I
> believe it was using a simplified CIBSE method to
> calculate heat flows.  If
> this is still the case the results may be poorer
> than what you could extract
> from DOE-2.2 (if you could extract), which as
> previously noted would need to
> be interpreted with a grain of salt.
> Graham
> 
> ----- Original Message ----- 
> From: "Gerald Pde" <geraldpde at yahoo.com>
> To: <BLDG-SIM at GARD.COM>
> Sent: Sunday, October 29, 2006 7:05 AM
> Subject: [BLDG-SIM] Zone mean radiant temperature in
> eQuest
> 
> 
> > Ecotech is another very good tool to get mean
> radiant
> > temperatures in a space. You could report out zone
> > temperatures for an hour from an hourly report in
> > eQUEST and using those values into ecotech.
> > Hope this helps too.
> >
> > Gerald
> >
> > --- "Jon Hand (clcv10)" <jon at esru.strath.ac.uk>
> wrote:
> >
> > >
> > > And to further the discussion about MRT and PMV
> > > assessments....
> > >
> > > If you do think this is important you might
> consider
> > > ESP-r which
> > > allows you to calculate explicit viewfactors
> within
> > > the zone (for any
> > > arbitrary shaped room, with or without surfaces
> > > acting as furniture
> > > and the like ) as well as viewfactors between
> one or
> > > more 'rectangular
> > > sensing bodies' in the zone and the surrounding
> > > surfaces.
> > >
> > > Then you can investigate radiant asymetry as
> > > well as the usual PMV PPD stats/graphs/frequency
> > > bins.  It will
> > > tell you not only the surface temperatures but
> the
> > > temperatures within
> > > the walls and an energy balance on the zone and
> at
> > > the faces of
> > > each surface (including the long wave radiant
> > > exchange at the surfaces.
> > >
> > > Some limitations... if you are also simulating
> bulk
> > > air flows there is
> > > no agent to convert the flow rates into
> > > approximations of velocity
> > > in the room and the clothing and metabolic rate
> > > do not change dynamically - you supply these at
> > > results recovery
> > > time (but then you could pose the question how
> many
> > > times
> > > would PMV be over 1.5 if I adjusted the clo
> value to
> > > represent
> > > taking off a jacket).  We never got around to
> making
> > > a sensor/thermostat
> > > that minics PMV but you can control on resultant
> > > temperature or
> > > some other ratio of air/MRT or even the
> temperature
> > > of a surface
> > > in the room.
> > >
> > > Really really sad folk could impose a CFD domain
> and
> > > then
> > > track the plumes of heat given off by the people
> in
> > > the room
> > > and see what happens when the window opens and
> the
> > > wind
> > > picks up outside and look at the mean age of air
> as
> > > it changes
> > > throughout the day (not recommended to do 3D
> > > adaptive transient
> > > coupled CFD for hundreds of timesteps because
> your
> > > coffee gets cold
> > > and in extreme cases friends give up on you).
> > >
> > > -Jon Hand, ESRU, Glasgow Scotland.
> > >
> > >
> >
>
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> > >
> >
> >
> >
> >
> >
>
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