RE: constant temperature unwanted

[hgjh kgkgf <arkokaffee@xxxxxxxxx>]

Thank you for your help, but I already know how to
create Inputs. 
My concern is where I can create an Input for a
radiation heating system or an air heating system.
Well, in theorie I can use the Input for Ventilation,
but I can not use that for radiation systems.

Do I have to make an Input at the limited heating
energy?

Kindly regards,
Arko

--- Arie Kalkman <a.kalkman@chri.nl> wrote:
> Dear Arko,
> 
> You cannot create an input for ventilation mass
> flow, but you can create an input for ventilation 
> volume flow.
> 
> Click on the "arrow" next to "airchange of
> ventilation". In the next window, select the "input"
> 
> radio button which allows you to create an Input
> parameter.
> 
> The dimension of airchange is in /hour, but since
> your room will have a fixed volume V, one
> airchange per hour equals a volumeflow of V per
> hour.
> 
> Kind regards,
> 
> Arie
> 
> 
> 
> -----Oorspronkelijk bericht-----
> Van:	hgjh kgkgf [SMTP:arkokaffee@yahoo.com]
> Verzonden:	donderdag 12 september 2002 5:50
> Aan:	trnsys@relay.doit.wisc.edu
> Onderwerp:	Re: constant temperature unwanted
> 
> Thank you very muich for your help, 
> But there is one think what I do not understand. I
> have already made a system externaly in Iisibat.
> Right
> now, I connect this to an Input for the temperatur
> of
> Ventilation. The connect it with the cooling/heating
> type in Prebid, I could just use an Input for
> limited
> power at type 56 by the typicalformula:
> Q=m*c*/Ti-To/
> 
> I would like to turn of the heating and cooling mode
> in prebid, but what inputs should I use instead? I
> did
> not found one for an airmassflow.
> 
> What if I got an radiation system? I should connect
> the massflow to some selfmade Input in Prebid, but I
> do not know where. I can not just produce an Input
> for
> massflow. It should be jused on some place in
> prebid.
> Or am I wrong?
> 
> Hope to hear from you again. Thank you so much
> foryour
> help!
> Arko
> 
> 
> 
> --- David Bradley <bradley@tess-inc.com> wrote:
> > Dear Arko,
> >    Type56 and most of the other building models
> are
> > set up to allow 
> > simulation of two different things. First, you can
> > obtain the building 
> > loads - meaning that TRNSYS computes the amount of
> > energy that must be 
> > added to or removed from a space in order to
> > maintain a set point 
> > temperature. As soon as you define a setpoint, the
> > building models will not 
> > allow the zone temperatures to go above (in the
> case
> > of a cooling setpoint) 
> > or below (in the case of heating) that point.
> > Instead, they will report how 
> > much energy was required to maintain that
> > temperature. Essentially you are 
> > defining some ideal heating and cooling equipment
> > for the building. The 
> > zone temperature will float between the two
> > setpoints. If you want the 
> > building temperature to float without bounds, then
> > you can either make the 
> > setpoints very high for cooling and very low for
> > heating (insuring that the 
> > equipment will never turn on) or, you can turn off
> > heating and cooling in 
> > Prebid and define your system externally.
> > Cheers,
> >    David
> > 
> > At 06:39 AM 9/9/2002 -0700, you wrote:
> > 
> > >Dear Trnsys users,
> > >
> > >I try to simulate an air heating and cooling
> system
> > in a building. (Type 
> > >56) It has good u-values and 4 Zones. Convective
> > Part of heating system is 
> > >100%.
> > >
> > >I made an Input for the set point (20 Wintertime,
> > 26 Summertime) of the 
> > >Zone temperature and connected it to
> Equation/Type
> > 14. What I do not 
> > >understand is, that the temperature in this
> > building is exact on the 
> > >desired setpoint temperature. Usually it should
> not
> > be that, because walls 
> > >store energy and the dead Band is 2 Kelvin. Why
> is
> > there no thermal 
> > >behavior of that building?
> > >
> > >Thank you for consideration, I hope to hear from
> > anybody soon.
> > >
> > >Arko K
> > >
> > >PS
> > >
> > >Also, I would like to know which Type is the best
> > for a simulation of a 
> > >PAC-unit.
> > >
> > >
> > >
> > >Do You Yahoo!?
> >
>
><http://rd.yahoo.com/finance/mailsig/new/*http://finance.yahoo.com>Yahoo!
> > 
> > >Finance - Get real-time stock quotes
> > 
> >
>
*********************************************************************************
> > 
> > 
> > Thermal Energy System Specialists (TESS)
> > David BRADLEY                           2916
> > Marketplace Drive - Suite 104
> > Project Engineer                          
> Madison,
> > WI 53719
> > Phone: (608) 274-2577 USA
> > Fax: (608) 278-1475
> > E-mail: bradley@tess-inc.com
> > Web Page:          www.tess-inc.com
> > 
> > "Providing software solutions for today's energy
> > engineering projects"
> >
>
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> > 
> > *****
> > 
> 
> 
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