Raghda Derbel's profile - activity

Hey everyone, I recently faced a problem that I tried to fix with some users, but I didn't provide them with enough informations which was confusing. So I am posting this question to explain my issue from the beginning.

I am modelling a residential building of 12 flats whose HVAC should be as follows: District heating for both water usage and floor heating + Heat recovery ventilaion

So these 3 screenshots show the hot water system configuration:

As you can see below it is a mixed water heater but the fuel type is District Heating as suggested by @egillmor (otherwise the ''DHW usage will show up as heating end use rather than water system end use.'')

The rest of the screenshots will show the HR ventilation and radiant floor loop

Following the instructions of @MatthewSteen in this post I did this :

The simulation ran successfully, but the District heating consumption chart was illogical, as shown below: the consumption is more or less the same from April to November and it is also low in January, while it should be low fi the summer and gradually increasing during the winter.

Same problem the the Demand

Does anyone have any idea about what is wrong with my HVAC that had led to that result ??

I hope I made it clear , but if there is any information missing, please let me know.

I would appreciate a lot your help ! :)

Aaah okay, I actually already have this measure and the only result related to PV generation is this even though I used

@rpg777 thanks for your reply but I actually used the add output variable measure to see: the Generator Requested Electr

Aaah okay, I actually already have this measure and the only result related to PV generation is this even though I used

Aaah okay, I actually already have this measure and the only result related to PV generation is this even though I used

Perfect ! Thanks

@David Goldwasser, By 'the standard reporting measure', you meant the Add Output Variable OS measure ? Or another measur

@macumber, I tried to simulate a system using SolarCollector:IntegralCollectorStorage, by draging it to the supply side

@Alex Vlachokostas, I understand that you have added a Water Heater and used it as an tank (and also to link the first l

@michael , did it work ?

@aparker I am using openStudio and I did like that but I got severe error saying PlantEquipmentList="PLANT LOOP 1 HEATIN

I am using openStudio and I did like that but I got severe error saying PlantEquipmentList="PLANT LOOP 1 HEATING EQUIPME

@David Goldwasser where can I find the results concerning the PV? Because after adding the measure and running I found t

Thanks for the answer, but could you be more specific please? How can I simulate the DesignDays only? Should I type YES

Thanks for the answer, but could you be more specific please? How can I simulate the DesignDays only? Should type YES fo

Thanks for the answer, but could you be more specific please? How can I simulate the DesignDays only? and which variable

EnergyPlus results after using CHP Hi everyone, I used 2 Generator:MicroCHP to power a residential building, one for t

Hi !

I am supposed to simulate a building with only one CHP unit (15kw), but it seems like I need to implement 2 different CHP because I have 2 plantloops as shown below:

when I tried to use just one CHP in e+, the simulation failed saying that there is one component that has different nodes. So instead of using one CHP with a power of 15kW, I am using two units of 7.5kW each, but the results won't be accurate, as it should be.

Does anyone you have any suggestion that could help me with this ?

NB: I used openstudio at the beginning but it turned out that I can not realize this kind of design (MicroCHP or MicroTurbine unit) with OS, even if it is in the loop in the images above, but it is not taken into account during the simulation and does not appear in the results, so I had to export the file into IDF file and I then I added the MicroTurbine.

Good idea !! I did like that and it ran finally but the result doesn't make any sense here is the table of the End Uses

Good idea !! I did like that and it ran finally but the result doesn't make any sense here is the table of End Uses. D

who are already defined as water inlet / outlet node in the Boiler object.

Now I tried to use the same use side node name for the water heater as the node name assigned in the demand branch of th

@mldichter, I tried to do as you said but from the beginning in OS, it doesn't let me drag the boiler nor the Water heat

@mldichter, I tried to do as you said but from the beginning in OS, it doesn't let me drag the boiler nor the Water heat

@mldichter, I tried to do as you said but from the beginning in OS, it doesn't let me drag the boiler nor the Water heat

EnergyPlus results after using CHP Hi everyone, I used 2 Generator:MicroCHP to power a residential building, one for t

I just asked a question about that here

How to implement one component (CHP unit) for two plant loops ? Hi ! I am supposed to simulate a building with only on

@mldichter, I still have a problem though, concerning the number of CHP. I am supposed to simulate the building with on

@mldichter, I still have a problem though, concerning the number of CHP. I am supposed to simulate the building with on

@mldichter, Thank you, but I finally knew how to implement it correctly after several trials (it's my 1st time using e+

@mldichter, Thank you, but I finally knew how to implement it correctly after several trials (it's my 1st time using e+

@mldichter, thx, I finally knew how to implement it correctly after several trials (it's my 1st time using e+ so I didn'

@mldichter, I finally knew how to implement it correctly after several trials (it's the 1st time using e+ so I didn't kn

@mldichter, I actually knew how to implement it correctly after several trials (it's the 1st time using e+ so I didn't k

@mldichter, I actually knew how to implement it correctly after several trials (it's the 1st time using e+ so I didn't k

@Julien Marrec, could you please share with us IDF File after correction? Because I ran the IDF file you shared above af

@Julien Marrec, could share with us IDF File after correction? Because I ran the IDF file you shared above after adding

@David Goldwasser, No I am not working from a drive, and it has not happened since. But I will certainly let you know if