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developer_ur

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Everything posted by developer_ur

  1. Guten Morgen, der geänderte Wert wird vor der Simulation überschrieben, so dass immer mit einfachem VL/RL simuliert wird. Das heißt, bis zum nächsten Release gibt es keinen Workaround.
  2. Der Fehler ist behoben und wird dann im nächste Release verschwunden sein. Noch zum Fachlichen: Wenn man die UV-Entnahme einschaltet, sieht man erst einmal keinen Effekt. Erst wenn man die RL-Temperaturen der Heizung verändert und/oder die Höhen der Rückläufe, sieht man ganz geringe Änderungen. Sollte ein (warmer) RL sogar bis in den Bereich des Solar-WT hineinreichen, sinkt der Solarertrag, da dieser Bereich so kalt wie möglich sein sollte (damit der Wirkungsgrad im Kollektor hoch bleibt mit geringeren thermischen Verlusten). Da es Speicher- und Anlagenhersteller gibt, die solche Regelungen anbieten, bilden wir das ab. Über den Sinn und den baulichen Aufwand lässt sich dann streiten. Einen schönen Tag noch Gruß
  3. Hallo Herr Dumke, vielen Dank, wir schauen es uns an. Wahrscheinlich ist es ein Fehler in der Datenhaltung des Dialoges. Ich prüfe, ob mit UV gerechnet (und im Dialog falsch angezeigt) wird, oder ob tatsächlich nur mit VL/RL-Entladung simuliert wird. Gruß
  4. Das ist bisher nicht vorgesehen. Unser Schwerpunkt liegt auf vorkonfektionierten Anlagen. Wir sind in Kontakt mit größeren Herstellern und bekommen oftmals von dort Rückmeldungen bezüglich neuer Hydrauliken. Wenn in der A1 der WW-Verbraucher über eine Friwa angeschlossen würde, änderte sich der Speichertyp in einen Pufferspeicher. Daher trennen wir zwischen TWW- und Pufferspeichern. Gruß
  5. Hi Santiago, you're correct. The number of tanks only increases the number of parallel connected tanks. The boiler remains single as it is. Please allow me some notes about your drawing: - Why do the tanks have an inflow on top where they are hot? Normally, the inflow is at the bottom and the outflow at the top. - What is the meaning of the second inflow on the left side (the bottom arrow) that is distributed to every collector field? Kind regards
  6. Sorry, I can't provide you a link because you're using a program that is not from our company. Kind segards
  7. Dear Franco, you got in the wrong forum. Our program GeoT*SOL is for simulating heat pump systems for domestic hot water and heating. Kind regards
  8. Hello Santiago Fondoso, what system do you use (A1, A2, ...)? I delivered energy depends on the temperatures in the tank and in the collectors. On the other hand you have more losses, if the temperature in the tank rises due to more collectors. Kind regards
  9. Hello Santiago Fondoso, I assume you took the System A7 or A7.1. It is correct that it is the total number of selected tanks, but connected in parallel. On your drawing you connected all systems in a row. Kind regards
  10. Hello Chris, no, it is not possible to take GeoT*SOL for such large systems. Our focus is on small and medium size dwellings. For example, for such large systems you need a detailed calculation of the losses of the distribution system. Kind regards
  11. Hallo Dominik mit "Variante" ist die Anlage gemeint. Das ist meistens der erste Eintrag in besagtem Menü. Man kommt auch über ein Doppelklick in die weiße Fläche neben den Komponenten in den Anlagendialog. Bitte beachten: Nicht alle Anlagen unterstützen zwei Kollektorkreise. Wir sind noch dabei, die restlichen Anlagen anzupassen.
  12. Hello Ahmad, please let me answer your questions: 1. You can dimension the piping from the collectors to the tanks. Parameters are: length, diameter, losses, inside/outside of the house 2. The system's design is fixed. Multiple tanks are always connected in parallel. 3. Every manufacturer has its own special control systems. In T*SOL we compare simply the temperatures between the tank and the collector. However, you can adjust the heights of the sensors in the tank. 4. Not directly in the collectors, but the volume flow through the collector loop. We simulate the collectors with the energetic properties (eta, losses, ...) taken from the test certificate. 5. No pump selection, sorry. 6. No valve selection, either. 7. ... no 8. You can enter a max. temperature for the collector and a switch off temperature in the tank. 9. You can select from thousands of locations world wide, also from Egypt. More questions? Please feel free to download a 30-day full version from here: https://valentin-software.com/en/downloads/ Kind regards
  13. What exactly do you want to correct? We evaluate the fresh water from the energy balance perspective. We don't track the volume of the remaining water. Kind regards
  14. Hello C3PO, sorry c1p8, in the project report of all pool systems you get the information about - Average swimming pool temp. - Pool temperature above X °C x,x % of operating hours I see these values even in systems with aux. heating (I used system B3). Can you explain what data you want to see exactly? Maybe with an example? Kind regards
  15. Hello Kiya, in the system A1 integrated is a boiler. This boiler delivers the additional heat. Kind regards
  16. Hello a.jerez we don't support T*SOL Pro 4 anymore. Also the import of T*SOL Pro 4 - projects in T*SOL 2018 is not supported.
  17. Hi Giovanni, one restriction of the test version is, indeed, the printing of the project report. Kind regards
  18. Hi Eric, our simulation is based on intervals with a length of 6 minutes. If some temperatures or volume flows change to abruptly, we reduce the interval to 1 minute. In your scenario you have large volume flows. If the tank's volume is exchanged completedly within a simulation intervall (6 or 1 minute), we will get balance errors. The system A13 is not suited to simulate with such a small tank.
  19. Hi Couloireric could you please write down the terms belonging to the balance, from your point of view? Did you take the tank losses into account? What collector size, process heat demand and tank volume did you use? You can also attach your project (*.tsproj) file. Kind regards
  20. Hi Belal, I had a deeper look at our algorithms. The energy savings are calculated with the efficiency of the boiler. Please double click on the boiler (even if you don't use it in your simulation) and set the efficiencies all on 100 %. After this the savings equal exactly the solar contribution. There is a second way I describe below. It is inconsistent that the heating element doesn't have it's own efficiency. I issued a bug entry in our tracking system. --- The equation for the calculation of the energy savings is equal for all fuels: savings = solar contribution / efficiency / heating value efficiency: 1. Either the efficiency of the boiler as described above or 2. the "Annual efficiency of the reference system" as defined on the tab "Savings" at the parameter dialog of the system (double click on a free area in the picture). #2 (if enabled) has precedence over the boiler efficiency. heating value: For electricity it is 1 by definition. Kind regards
  21. Hello Belal, sorry for the delayed answer. We had Easter holidays in Germany. Would you please give me further details? 1. What kind of system did you select (A1, A2, ...)? 2. What did you select as additional heating (boiler, gas, oil, ...)? The savings are not calculated one to one in relation to the solar gain. If you have a gas boiler for example, you have to take the effieciency of the boiler into account (around 80 to 90%). That means that the savings in Kilowatthours for the specific fuel is higher than the Kilowatthours of the solar energy contribution. Kind regards
  22. Hallo Robert, das klingt zwar spannend, solche Kollektoren haben wir jedoch nicht in unserer Datenbank. Auch unser Simulationsmodell geht von einer einseitigen Bestrahlung aus. In den Anlagen, die zwei Kollektorfelder unterstützen, könnte man zwei Kollektoren quasi mit dem Rücken aneinanderkleben. Wahrscheinlich müssen dann noch die Kollektorkennwerte (eta, Verluste) angepasst werden.
  23. Hello Campo Solar, in T*SOL evaporation is only taken into account for the calculation of heat losses. If you have much loss of water due to evaporation you should increase the "Daily freshwater demand". I think an actual pool also doesn't have a control for the water level. Kind regards
  24. Hello saeid, W/K is Watt per Kelvin (determines the size or performance) k in kA is the heat transfer coefficient in W/(m²*K) (determines the efficiency) Both values are constructional properties of a heat exchanger. Kind Regards
  25. Hello, this error occurred in old versons of T*SOL, if the project was simulated with different regional settings. Did you do a new simulation? Can you set the regional settings temporarily to German? Can you create a new project? Kind Regards
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