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Re: [EnergyPlus_Support] Different from reality & Ventilation related problems
Thank you very much Lixing and Mike,
So I should wait for EnergyPlus V. 2.1, right?
May I know when it will be released, please?
Many thanks and best regards
Abeer
Lixing Gu <gu@xxxxxxxxxxxx> wrote:
Abeer:
I think Mike already answered your question due to combination of the
AirflowNetwork model and any type of zone HVAC systems. After downloading
the input file, I ran the input file using both Versions 2.0 and 2.1 (to be
released soon). The fatal errors went away using Ver. 2.1.
Best regards,
Lixing
Enclosed: Mike's reply
This is a known problem which has been fixed for version 2.1 (CR7319). With
version 2.0, it is not possible to combine AIRFLOWNETWORK:MULTIZONE with any
type of zonal HVAC system (Fan coils, unit ventilators, unit heaters, etc.).
Mike
----- Original Message -----
From: "Abeer M. Eisa" <abeermme@xxxxxxxxx>
To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Sent: Thursday, November 01, 2007 1:30 PM
Subject: Re: [EnergyPlus_Support] Different from reality & Ventilation
related problems
> Thank you Lixing,
> I've just uploaed the idf file at the problems submittals at the group,
> please let me know if any further information is required .
> Many thanks.
> Abeer
>
> Lixing Gu <gu@xxxxxxxxxxxx> wrote:
> Abeer:
>
> Please upload the input file. I am going to look at the error messages
> caused by the AirflowNetwork model.
>
> Lixing Gu
> ----- Original Message -----
> From: "abeermme" <abeermme@xxxxxxxxx>
> To: <EnergyPlus_Support@xxxxxxxxxxxxxxx>
> Sent: Wednesday, October 31, 2007 3:53 PM
> Subject: [EnergyPlus_Support] Different from reality & Ventilation related
> problems
>
>> Hi,
>> I'm simulating an office space in a hot arid area, whose winter is
>> cold so it's not a common practice to need cooling in cold months
>> even in office buildings whose internal gains are high, (sometimes
>> in few cases natural ventilation might be used when internal
>> temperatures are relatively high) BUT so far, all results show
>> considerable cooling loads in these months! I tried reducing internl
>> gains, different space ratios and other options that might be
>> relevant but still getting same results of cold months cooling.
>> - Thinking that the problem might be because of the use of natural
>> ventilation as "scheduled", I tried setting it to b "calculate" but
>> got an error message saying: [b][i]"**FATAL:
>> GetAirFlowNetworkInput": Program terminates for perceding reason(s)
>> Please check the EnergyPlus error file for more information"[/i][/b]
>> In energy plus err. file many severe errors appeared as follows:
>> [b][i]" ** Severe ** GetAirflowNetworkInput: The number of
>> AIRFLOWNETWORK:MULTIZONE:COMPONENT ZONE EXHAUST FAN is not equal to
>> the number of Zone exhaust fans defined in CONTROLLED ZONE EQUIP
>> CONFIGURATION
>> ** ~~~ ** The number of AIRFLOWNETWORK:MULTIZONE:COMPONENT
>> ZONE EXHAUST FAN is 0
>> ** ~~~ ** The number of Zone exhaust fans defined in
>> CONTROLLED ZONE EQUIP CONFIGURATION is 4
>> ** Severe ** GetAirflowNetworkInput: Zone Exhaust Fan is not
>> defined in AIRFLOWNETWORK:MULTIZONE:COMPONENT ZONE EXHAUST FAN
>> ** ~~~ ** Zone Air Exhaust Node in CONTROLLED ZONE EQUIP
>> CONFIGURATION =5468 FAN COIL RETURN"[/i][/b]
>> Could you please help by giving probable reasons for the 1st topic
>> and some solution to the second?
>> Your help is urgently needed and highly appreciated.
>> Thanks, regards
>> Abeer
>>
>>
>>
>> The primary EnergyPlus web site is found at:
>> http://www.energyplus.gov
>>
>> The group web site is:
>> http://groups.yahoo.com/group/EnergyPlus_Support/
>>
>> Attachments are not allowed -- please post any files to the appropriate
>> folder in the Files area of the Support Web Site.
>>
>> EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the
>> Documentation link and press the "search" button.
>>
>> Yahoo! Groups Links
>>
>>
>>
>>
>
>
>
>
>
>
> Abeer M. Eisa
> Assistant Lecturer - PhD Student
> Department of Architecture
> Ain-Shams University
> Cairo Egypt
> 010 678 52 59
>
>
> __________________________________________________
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>
>
> The primary EnergyPlus web site is found at:
> http://www.energyplus.gov
>
> The group web site is:
> http://groups.yahoo.com/group/EnergyPlus_Support/
>
> Attachments are not allowed -- please post any files to the appropriate
> folder in the Files area of the Support Web Site.
>
> EnergyPlus Documentation is searchable. Open EPlusMainMenu.pdf under the
> Documentation link and press the "search" button.
>
> Yahoo! Groups Links
>
>
>
>
Abeer M. Eisa
Assistant Lecturer - PhD Student
Department of Architecture
Ain-Shams University
Cairo Egypt
010 678 52 59
__________________________________________________
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