Demand not met - Parameters
Verfasst: Mo Nov 06, 2017 7:57 pm
Hello everybody,
We are a group of ETH students and we face some problems understanding some aspects of the software, regarding our energy demand. Specifically, after running a simulation we get the message "Energy demand is not met". Although, we followed all the suggestions over the changes the software prososes to us the demand cannot still be met. We run two different systems and we compared the Qdem with the Quse.
In the first one we tried to make the use bigger than the demand but even when this was accomplished, we still got the same message. What other parameters should we check in this case to meet the demand?
Also with a gas boiler of 90%efficiency and a small fraction of electricity form grid, we get a system performance of 1.13. Is that possible?
Additionally, on the second system layout the program does not show the message and the demand seems to be met, although Qdem>Quse annually and it is stated in descriptions that in this case there is an energy defifit and the desired temperature is not met.
Finally, we would like to know which graphs would you suggest us to check. We tried to compare the set point temperatures (as one of the proposals was to check this) with the actual reached temperature, but we could not find the latter.
Attached you can find some screenshots of the simullations we run and it was not met. Thanks, in advance.
We are a group of ETH students and we face some problems understanding some aspects of the software, regarding our energy demand. Specifically, after running a simulation we get the message "Energy demand is not met". Although, we followed all the suggestions over the changes the software prososes to us the demand cannot still be met. We run two different systems and we compared the Qdem with the Quse.
In the first one we tried to make the use bigger than the demand but even when this was accomplished, we still got the same message. What other parameters should we check in this case to meet the demand?
Also with a gas boiler of 90%efficiency and a small fraction of electricity form grid, we get a system performance of 1.13. Is that possible?
Additionally, on the second system layout the program does not show the message and the demand seems to be met, although Qdem>Quse annually and it is stated in descriptions that in this case there is an energy defifit and the desired temperature is not met.
Finally, we would like to know which graphs would you suggest us to check. We tried to compare the set point temperatures (as one of the proposals was to check this) with the actual reached temperature, but we could not find the latter.
Attached you can find some screenshots of the simullations we run and it was not met. Thanks, in advance.