Search found 13 matches

by Zaideus
Fri Oct 18, 2019 10:54 am
Forum: Polysun Simulation Software
Topic: Heat Load Profile for buildings
Replies: 1
Views: 1895

Heat Load Profile for buildings

Hallo forum members, Is there any way of generating the 'correct' heat load profile of a non-residential building when only the annual heat consumption is known (not the hourly heat demand) and a quasi-dynamic or degree-hours model is chosen? It seems that Polysun by default assumes that it is a res...
by Zaideus
Thu May 02, 2019 6:37 pm
Forum: Polysun Simulation Software
Topic: Minimum up and down time (with programmable controller)
Replies: 1
Views: 713

Minimum up and down time (with programmable controller)

Hallo, In order to optimize the operation of a heat pump, I am using a programmable controller. In the simulation I must also include the minimum up and down time for the heat pump. I have tried to understand this from the available templates as well as the user handbook. Can someone give me a tip o...
by Zaideus
Fri Apr 13, 2018 12:02 am
Forum: Polysun Simulation Software
Topic: Wärmepumpe mit Abwasser
Replies: 1
Views: 1058

Wärmepumpe mit Abwasser

Hallo Forum, ich simuliere ein Wärmepumpe-Kessel System, Die Quelle für Wasser-Wasser Wärmepumpe ist Abwasser mit 18 °C Vorlauftemperatur und durschfluss 5,5 l/s. Dafür benutze ich ein Energie Quelle. Dieses System etweder wird nicht immer erfolgreich simuliert(system memory error- wobei mein Polysu...
by Zaideus
Thu Apr 12, 2018 11:14 pm
Forum: Polysun Simulation Software
Topic: Zu wenig Speicher für Polysun zur Verfügung Thema ist als GELÖST markiert
Replies: 3
Views: 3947

Re: Zu wenig Speicher für Polysun zur Verfügung Thema ist als GELÖST markiert

Wie kann ich den verfügbaren Speicherplatz größer als 1 GB in Polysun für MAC einstellen?

Danke,
Zaideus
by Zaideus
Thu Apr 12, 2018 10:02 pm
Forum: Polysun Simulation Software
Topic: Warning: Heat capacity of system not met
Replies: 5
Views: 2542

Re: Warning: Heat capacity of system not met

Hallo Polysun_CAH69, Thank you for your reply, attached is the requested screenshot. It seems that due to large number of heating elements (100 floor heaters), a large flow rate is required (8000 l/h), but the supplied hot fluid flow from buffer is very less even though the buffer is big enough (100...
by Zaideus
Thu Apr 12, 2018 11:20 am
Forum: Polysun Simulation Software
Topic: Warning: Heat capacity of system not met
Replies: 5
Views: 2542

Re: Warning: Heat capacity of system not met

I am getting the same error when using quasi dynamic model and temperature 19 degrees, but the simulation is working fine with soll Temperatur 16 degrees. I tried increasing the number of heat elements and power of heat pumps. But it didn't work. I will post the screenshot as soon as possible. Thank...
by Zaideus
Wed Apr 11, 2018 6:13 pm
Forum: Polysun Simulation Software
Topic: Warning: Heat capacity of system not met
Replies: 5
Views: 2542

Warning: Heat capacity of system not met

Hallo, I am simulating a heating system with heat pump and a boiler. For this I am using an available load profile as well as the set poit building temperature (see screenshot). Unfotunately after the simulation I am getting the notification that the heat capacity of system is not met, as well as th...
by Zaideus
Wed Mar 14, 2018 2:53 pm
Forum: Polysun Simulation Software
Topic: Leistungslimit Polysun Thema ist als GELÖST markiert
Replies: 1
Views: 1673

Leistungslimit Polysun Thema ist als GELÖST markiert

Hallo Forum, wie sind eure Erfahrungen mit der größe der Modelle die die Software Polysun simulieren kann? In unserem Fall möchten wir circa 30 Gebäude simulieren die alle Strom und Wärme beziehen aber zum teil auch PV Strom sowie BHKW Srom und Wärme liefern. Verbunden werden diese durch ein Arealne...
by Zaideus
Tue Jan 09, 2018 5:18 pm
Forum: Polysun Simulation Software
Topic: Heat demand for buildings (input) Thema ist als GELÖST markiert
Replies: 1
Views: 2096

Heat demand for buildings (input) Thema ist als GELÖST markiert

Hallo, I am simulating a CHP system with district heating, I already know the annual heat demand and I input this value in the software. However, in the simulation result I only get around 80 % of energy demand being met from the radiators (Energie vom Konvektoren in the picture). The rest from heat...
by Zaideus
Tue Dec 19, 2017 1:47 pm
Forum: Polysun Simulation Software
Topic: Too less energy from CHP
Replies: 1
Views: 1482

Too less energy from CHP

Hallo Polysun Community, I have been trying to simulate a CHP system with PV and peak load boilers. Unfotunately the energy produced by the CHPs in polysun simulation is almost half of that in another simulation software (2000 fully used hours as compared to 4000 hours in another software for one ye...