[esp-r] Re: slab-on-grade hydronic floor

[Hall Monika]

Hi Ragnhild,

do you have a plant control loop?  When is the pump on/off?

Kind regards,
Monika

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Fachhochschule Nordwestschweiz
Hochschule für Architektur, Bau und Geomatik
Institut Energie am Bau

Dr. Monika Hall
Wissenschaftliche Mitarbeiterin
St. Jakobs-Strasse 84
4132 Muttenz
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T +41 61 467 45 61
F +41 61 467 45 43
monika.hall at fhnw.ch
www.fhnw.ch
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Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-bounces at lists.strath.ac.uk] Im Auftrag von Ragnhild Haukland Løge
Gesendet: Montag, 25. November 2013 13:17
An: esp-r
Betreff: [esp-r] slab-on-grade hydronic floor

Hello,
I have a simple model of a building with a solar heating system. The solar heating system consists of the following components:
-simplified flat plate collector
-slab-on-grade hydronic floor
-variable speed domestic WCH pump
I have the following connections:
collector->hydronic floor
hydronic floor->pump
pump->collector
And containments:
collector: ambient air
hydronic floor: node within a surface: ground floor inserted into node 2 (within a concrete layer)
When i run the simulations with and without the plant network, I get the same temperatures inside the building. Hence, it does not seem like the solar heating system is contributing to any heat through the floor into the building zone at all.
My question is: Does anyone know if I have to link the plant network in a different way or if I may have overlooked something in order to get the solar heating system to contribute to heat inside the building.
Kind regards,
Ragnhild Løge


--
Med vennlig hilsen,

Ragnhild Haukland Løge
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