Indeed, in version 8.1 you can choose to limit a lowTemperatureRadiant circuit to a certain length.
Energyplus calculates the number of circuits I presume.
But to do what…?
I’ve the impression that this doesn’t change anything and that no extra reporting is generated�
Best regards,
Geert Bellens
Van: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] Namens Andy Tindale
Verzonden: woensdag 16 oktober 2013 12:05
Aan: EnergyPlus_Support@xxxxxxxxxxxxxxx
Onderwerp: RE: [EnergyPlus_Support] Low temperature radiant system - check return water temperature?
Just to add to what Jean says, you can generate HVAC node temperature outputs in DesignBuilder by checking the "HVAC System temperatures" option under Miscellaneous Outputs on the Output tab of Simulation options dialog. I think you may need to use v3.3 beta test versions to access this.
You can view the return water temperatures in DesignBuilder using the Results Viewer. Instructions for use can be found at:
http://www.designbuilder.co.uk/helpv3.3/#ResultsProcessor.htm
HW Loop Demand side outlet temperatures will give you the return hot water loop temperatures.
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of jeannieboef@xxxxxxxxx
Sent: 10 October 2013 20:05
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Cc: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: Re: [EnergyPlus_Support] Low temperature radiant system - check return water temperature?
0) Search the forum for rdd file.
Re: DesignBuilder
1) Best ask the DB forum...
2) I think the latest versions running e+ v8.0 should include a maximum circuit length. The active area gets used to automatically calculate the number of circuits.
3) there is also a Alpha results viewer from DB
4) you can save extra output variable declarations in a text file with a idf extention in your DB e+ folder and use the include idf dialogue in DB to include this file's text.
Mit freundlichen Grüßen- Sent from my iPhone (excuse the brevity)
i. A.
Jean Marais
b.i.g. bechtold
Tel. +49 30 6706662-23
On 10.10.2013, at 18:01, Athinodoros Tzoulis <a_tzoulis@xxxxxxxxx> wrote:
Hello,
I am modelling a small room with a heated floor and I would like to check the return water temperature of the system in every step.
Is there a possibility to apply a sensor or node at the end of the circuit and check water temperatures?
Moreover, if the heated floor is concrete core activation the most common way to actually build the system is to have prefab slabs of 1.2m wide and the supply water is coming in from the one side and getting out from the other. So, in this case we have several loops in a room/zone which altogether added are the circuit length. Is there a way to distinguish these two cases (having different circuit length and different loop length)?
I am using DesignBuilder initially and then I import the results in EnergyPlus in order to make small changes in EP. So, if you know a way to do it in Designbuilder you are welcome to do so.
Thank you very much in advance
Best regards,
Athinodoros Tzoulis
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