[esp-r] Re: Zone control sensors - cannot change with control law?

[Achim Geissler]

Hi Milan

got me. I have actually never used this, yet. I just remembered reading it because I would have liked this feature some time ago.

I assume it is not possible. I think the limit is 5 day types (but am not sure - you would need to look into the source). So you could have SatWin/SatSum/Sun/WeekSum/WeekWin ... which is already quite a step forward.

It would of course be a lot better if the "Valid for period" entry in the control file would do what the name suggests. No idea if this is much work to code.

Regards
Achim


-----Original Message-----
From: Milan Janak [mailto:milan.janak at stuba.sk] 
Sent: Freitag, 8. Januar 2010 12:00
To: Achim Geissler
Subject: Re: [esp-r] Re: Zone control sensors - cannot change with control law?

Hi Achim,

Related to this "problem" with day types a question comes to mind
that what is realy needed is to be able to define a day type e.g.
"winterday" but at the same time to maintain division to week/sat/sunday.
Is this possible?

Best regards,

Milan.
 

On Fri, 8 Jan 2010 11:34:55 +0100
 "Achim Geissler" <achim.geissler at intergga.ch> wrote:
>Hi Lukas
>
> 
>
>Recently (1.12.2009) there was a similar question on the forum, I think.
>Aizaz gave this answer:
>
> 
>
>==
>
>There has been an extension to day type facility recently and is available
>in the current version. One can define day types in addition to legacy
>week/sat/sunday from context>calendar>day types. This should ideally be done
>before defining controls and operations information. Once daytype
>"summerday" 
>
>and "winterday" are defined in the calendar (and associated with Julian days
>of the year), different control laws and schedules can be associated in the
>same control loop as with week/sat/sunday.
>
>==
>
> 
>
>Regards
>
>Achim
>
> 
>
> 
>
>From: esp-r-bounces at lists.strath.ac.uk
>[mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of Lukas Swan (Dal)
>Sent: Donnerstag, 7. Januar 2010 22:00
>To: esp-r at lists.strath.ac.uk
>Subject: [esp-r] Zone control sensors - cannot change with control law?
>
> 
>
>Hello-
>
> 
>
>I am modeling a house that has multiple zones and both heating and cooling.
>
>Each zone has an independent electric baseboard convective heaters and
>independent thermostats (i.e. individual zone sensor and actuation).
>
>There is also a central cooling system that distributes to each zone
>proportionally (volume based) and is controlled by a single thermostat on
>the first floor level (i.e. central sensor and distributed actuation).
>
> 
>
>I was planning on modeling this using zone control loops.
>
>Heating during heating months would be completed using a basic controller
>for each zone with the sensor and actuator at that specific zone's air
>point.
>
>Cooling during other months would be completed using a master/slave scheme
>(Laws #1 and #21), where slave zones would then reference the master zone
>air point as the sensor.
>
> 
>
>However, it appears that the specification of the sensor and actuator are
>outside the scope of a particular period, and are fixed for a given control
>loop.
>
>Also - it appears that each zone can only reference one control loop.
>
> 
>
>Does anyone have a solution to this problem?
>
> 
>
>Thanks,
>
>Lukas Swan
>
>Dalhousie Univ.
>
>Canada
>