[esp-r] Re: FW: Normal maximum zones value 72？

[Jon Hand]

Achim has a very good point - ensuring the quality of large models is difficult
in any simulation tool, especially if you are new to the tool.  The general
rule is - if you can make a model with a dozen zones and it works correctly
the first time you run a simulation you have the skills needed to make
a model with 24 zones.  Once 24 zone is a normal task then try for 50.

Many experts in ESP-r have the opinion that it is possible to answer questions
about a large real building without assessing every room in the building.  This
is true for hospitals which have much duplication of room types and room
uses.  Suggest that you make an agreement with an expert to review
your project and offer detailed advise.  You will also want to contract with
an expert to review your model.

The complexity of model that a specific version of ESP-r can accommidate
is available within the "Introduction to ESP-r" option in the ESP-r project manager.

-Jon Hand

________________________________________
From: esp-r-bounces at lists.strath.ac.uk [esp-r-bounces at lists.strath.ac.uk] On Behalf Of Íõ¾Õ»¨ [luckygrass100 at hotmail.com]
Sent: 27 January 2010 11:32
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] FW:  Normal maximum zones value 72£¿

Dear Achim£¬
        Thank you for giving answers to my question.But I wonder how to extend the number of zones allowed  by change of source or recompiling?Would you please tell me the specific operations?Moreover,why it is hazardous going beyond 99 zones?What if I build a high-rise building which may be over 20 floors?Then I can only prepare 3-4 zones for each floor.If so,the accuracy of simulation results may be worrisome.Thanks!Daisy.



________________________________
From: achim.geissler at intergga.ch
To: luckygrass100 at hotmail.com; esp-r at lists.strath.ac.uk
Subject: RE: [esp-r] Normal maximum zones value 72£¿
Date: Wed, 27 Jan 2010 11:43:35 +0100


Dear Daisy



it would maybe be possible to extend the number of zones allowed (change of source, recompile ¨C though going beyond 99 zones may prove hazardous). However, I would strongly recommend first checking if you cannot reduce the number of zones in actually necessary in the model by combining thermally similar ¡°real rooms¡± to one thermal zone. Keep in mind that bookkeeping for such a number of zones is exponentially error prone and time consuming.



Regards

Achim





From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] On Behalf Of ???
Sent: Mittwoch, 27. Januar 2010 11:35
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] Normal maximum zones value 72£¿



Dear all£¬
       I am trying to build a real hospital model.There are many zones in every floor.This afternoon,I met a problem that when I built more than 72 zones,the esp-r closed itself,reminding segmentation fault,and I can't open the configution file again,warning that zones value(73) > normal maximum 72!I have never known that.If maximum zones value is 72,how can I do to build the hospital model with more than 300 zones for the total five storeys?Your answers will be appreciated!Grateful thanks in advance.
    Daisy.

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