RE: [EnergyPlus_Support] Thermal capacity of walls

Another option is to use the EE4 energy modeling software from Natural Resources Canada. This tool is for compliance energy modeling based on the MNECB 1997. You wouldn’t want to use it for energy modeling but it has a neat facility for defining envelope assemblies. It has a good library of materials and you can add other materials. You build up the construction layers by picking the appropriate materials. Once your construction is defined, the Heat Capacity is calculated and reported. You get to choose SI or Imperial units. The Assembly construction facility also calculates the thermal bridging effects of metal studs, etc. so you arrive at a reasonable effective R-value. It is very helpful when you need to determine if a wall is Mass type or not for 90.1 purposes.

http://www.nrcan.gc.ca/energy/software-tools/7453

Christopher Jones, P.Eng.
Senior Engineer

WSP Canada Inc.

2300 Yonge Street, Suite 2300

Toronto, ON M4P 1E4
T +1 416-644-4226

F +1 416-487-9766

C +1 416-697-0056

www.wspgroup.com

From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
Sent: Monday, April 11, 2016 2:30 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Thermal capacity of walls

Yes the program can output some metrics, however, the key is getting the inputs correct- for that I use the spreadsheet sent.

Best of regards-

Image removed by sender.

On Mon, Apr 11, 2016 at 8:21 AM, ademilson xavier ademilsonxavier@xxxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

Ivan and Leticia;

You're welcome!

I really hope have helped.

My best regards;

Ademilson Xavier.

https://www.linkedin.com/in/ademilsonxavier

(51) 8575 0797

De: "Ivan Mezzacapa ivan_slip@xxxxxxxxxxx [EnergyPlus_Support]" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Para: "EnergyPlus_Support@xxxxxxxxxxxxxxx" <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Enviadas: Segunda-feira, 11 de Abril de 2016 11:39

Assunto: Re: [EnergyPlus_Support] Thermal capacity of walls

Thanks Ademilson!

Ivan Mezzacapa de Souza

Projetos de Ar Condicionado - Consultoria em Eficiência Energética - Simulação Energética

LinkedIN: http://www.linkedin.com/in/ivanmezzacapa

Celular: (11) 99963-9326

De: EnergyPlus_Support@xxxxxxxxxxxxxxx <EnergyPlus_Support@xxxxxxxxxxxxxxx> em nome de ademilson xavier ademilsonxavier@xxxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Enviado: segunda-feira, 11 de abril de 2016 13:46
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Assunto: Re: [EnergyPlus_Support] Thermal capacity of walls

Hi Leticia and Ivan, Good Day!

In my last simulations I am getting used to consider the values by report called Output: Variable, Surface Group: Surface Heat Storage Energy.

As below:

! Program Version - EnergyPlus	Version 8.4.0-832e4bb9cb	YMD=2016.04.05 16:53
! Output:Variable Objects		IDD_Version 8.4.0
Output:Variable	Surface Heat Storage Energy	hourly
Output:Variable	Surface Heat Storage Gain Rate	hourly
Output:Variable	Surface Heat Storage Loss Rate	hourly
Output:Variable	Surface Heat Storage Rate	hourly
Output:Variable	Surface Heat Storage Rate per Area	hourly
Output:Variable	Surface Average Face Conduction Heat Gain Rate	hourly
Output:Variable	Surface Average Face Conduction Heat Loss Rate	hourly
Output:Variable	Surface Average Face Conduction Heat Transfer Energy	hourly
Output:Variable	Surface Average Face Conduction Heat Transfer Rate	hourly
Output:Variable	Surface Average Face Conduction Heat Transfer Rate per Area	hourly

I do not know another report or group to get it;

My best regards;

Ademilson Xavier.

https://www.linkedin.com/in/ademilsonxavier

(51) 8575 0797

Leticia,

i've checked here too and I do not find this output.

You may need to request the outputs to calculate the thermal capacity. I believe that the software does not have this specific output.

Now i'm curious about this too.

Regards,

Ivan Mezzacapa de Souza

Projetos de Ar Condicionado - Consultoria em Eficiência Energética - Simulação Energética

LinkedIN: http://www.linkedin.com/in/ivanmezzacapa

Celular: (11) 99963-9326

De: EnergyPlus_Support@xxxxxxxxxxxxxxx <EnergyPlus_Support@xxxxxxxxxxxxxxx> em nome de Leticia Neves leneves@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Enviado: segunda-feira, 11 de abril de 2016 13:09
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Assunto: Re: [EnergyPlus_Support] Thermal capacity of walls

Hi, Ivan.

I already checked and it I didn't find it. Do you know the specific name of the output?

Regards,

Leticia

On Mon, Apr 11, 2016 at 9:18 AM, Ivan Mezzacapa ivan_slip@xxxxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:

Hello Leticia,

check these itens:

- Output:Table:SummaryReports

- Output:Variable

Maybe variables have the output that you need.

Best regards,

Ivan Mezzacapa de Souza

Projetos de Ar Condicionado - Consultoria em Eficiência Energética - Simulação Energética

LinkedIN: http://www.linkedin.com/in/ivanmezzacapa

Celular: (11) 99963-9326

De: EnergyPlus_Support@xxxxxxxxxxxxxxx <EnergyPlus_Support@xxxxxxxxxxxxxxx> em nome de Leticia Neves leneves@xxxxxxxxx [EnergyPlus_Support] <EnergyPlus_Support@xxxxxxxxxxxxxxx>
Enviado: domingo, 10 de abril de 2016 19:57
Para: EnergyPlus_Support@xxxxxxxxxxxxxxx
Assunto: [EnergyPlus_Support] Thermal capacity of walls

Hello,

I need to calculate the thermal capacity of the walls of my model (kJ/m²K). How can I ask for this output in EnergyPlus? The table shows me only the thermal transmittance (U value).

Thank you in advance.

Regards,

Leticia Neves

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Posted by: "Jones, Christopher" <Christopher.r.Jones@xxxxxxxxxxxx>

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