[esp-r] Re: Fwd: CEN standard 13791 + CEN 15251

[Aizaz Samuel]

Re: CEN 15251

This CEN standard is followed within the current implementation of the 
building control law called Adaptive Human Comfort. The controller calculates 
a running mean ambient temperature and uses it to calculate a comfort 
operative temperature and hence controls heating/cooling.

Now whereas comfort conditions and mean temperature are calculated these are 
not written out to results file. Previously this information has been written 
out to a text file by hard wiring the source code but should probably be 
included within results in the future.

Regards,
Aizaz

> ----------  Forwarded Message  ----------
>
> Subject: [esp-r]  CEN standard 13791 + CEN 15251
> Date: Monday 18 February 2008 14:12
> From: "Pueltz, Gunter" <Gunter.Pueltz at muellerbbm.de>
> To: "'esp-r at lists.strath.ac.uk'" <esp-r at lists.strath.ac.uk>
>
> Dear ESRUs,
>
> following questions concerning the two CEN standards 13791 + 15251:
>
> 1) CEN standard 13791:
> Has ESP-r been successfully validated according to CEN standard 13791
> meanwhile ?
> Your answer to my last request has been very hopefully (see below) ...
> In case of - Is an official certificate from ESRU available for this
> successfull validation ?
>
> 2)  CEN standard 15251:
> The final version of CEN standard 15251 (2007) includes a special
> evaluation scheme for
> acceptable operative (= resultant) temperatures during summer in rooms
> WITHOUT any cooling
> plant (see CEN standard 15251, appendix A.2):
> The maximum operative temperature is defined as a function of "mean ambient
> air temperature",
> which must be averaged from ambient air temperatures of the last 7 days (24
> hours) -
> similar to ASHRAE standard no. 55.
> Now my question: Is a new feature in the res-module available, which is
> able to
> do such an evaluation of operative temperatures - similar to the evaluation
> scheme
> according to ISO 7730 (valid for rooms WITH a cooling plant) ?
> As frequencies of overriding the given limitations is also defined in CEN
> standard 15251,
> this new feature must be able to calculate the number of yearly hours (or
> percentage of time),
> when the given maxima are passed (too high operative temperatures during
> summer); this must be done
> according to the defined classes (I - II - III - IV) of thermal comfort
> (see attached example from
> the CEN standard 15251); thus an adequate output (perhaps in excel-format
> ?) would help to perform
> such an evaluation according to CEN standard 15251 ...
>
> To do this evaluation via excel would be very labour-intensive and time
> consuming :-((((
>
> Regards,
> Gunter
>
> --
> Dr. Gunter Pültz
>
> Müller-BBM GmbH
> Robert-Koch-Straße 11
> 82152 Planegg
> Telefon +49 (0)89 85602 - 336
> Telefax +49 (0)89 85602 - 111
> http://www.MuellerBBM.de
>
> HRB München 86143
> Geschäftsführer: Bernd Grözinger, Dr. Edwin Schorer, Norbert Suritsch
>
> > -----Original Message-----
> > From: P Strachan [mailto:paul at esru.strath.ac.uk]
> > Sent: Wednesday, August 09, 2006 2:28 PM
> > To: Pueltz, Gunter
> > Cc: Jon Hand
> > Subject: RE: [ESP-r] CEN standard 13791
> >
> >
> >
> > Dear Gunter,
> >
> > We have to pass the 13791 tests for UK accreditation,
> > together with other tests. We are in the final stages of this
> > - I will announce on the list, hopefully in the next 2 weeks,
> > that all the tests have be passed.
> >
> > Regards
> > Paul
> >
> > -----Original Message-----
> > From: owner-esp-r at lists.strath.ac.uk on behalf of Pueltz, Gunter
> > Sent: Wed 09-Aug-06 7:27 AM
> > To: 'esp-r at lists.strath.ac.uk'
> > Subject: [ESP-r] CEN standard 13791
> >
> > Dear ESRUs,
> >
> > the new distribution of ESP-r, ver 11.1, contains several test cases
> > concerning the CEN standard 13791 (see attached file).
> > But I am not only interested in the test cases described in
> > this standard -
> > I am interested in an official certificate from ESRU, which
> > validates that
> > ESP-r does COMPLETELY fullfill the requirements of the CEN
> > standard 13791 !
> >
> > Is there such an official certificate from ESRU available ?
> >
> > -Gunter
> >
> > --
> > Gunter Pültz
> >
> > Müller-BBM GmbH
> > Robert-Koch-Straße 11
> > 82152 Planegg
> > Telefon +49 (0)89 85602 - 336
> > Telefax +49 (0)89 85602 - 111
> > http://www.MuellerBBM.de
>
> -------------------------------------------------------