[EnergyPlus_Support] Re: Why the generators stop working when selected "Follow Thermal"

["pzhaocsm" <pzhaocsm@xxxxxxxxx>]

Thank you very much!
I have sent it to the helpdesk with the same subject of these messages.
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" <brent.griffith@...> wrote:
>
> Pls send it to the helpdesk
> 
> ________________________________
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of pzhaocsm
> Sent: Thursday, June 10, 2010 3:20 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Re: Why the generators stop working when selected "Follow Thermal"
> 
> 
> 
> Hello Brent,
> 
> I did some changes as follows:
> I have tried to replace the Generator:MicroCHP with a Generator:Combustion rated at 10kW based on the MicroCoGeneration.idf file. So the generator is already on the supply side of the plant loop. The simulation result is: When the generator is selected as "Base Load", electrical output is 10kW, and also some thermal output come up with it. However, When the generator is selected as "Follow Thermal", again the electrical and thermal output go down to zero.
> I could not find how to upload my file, can you let me know your email, so I can send to you my file.
> 
> Thank you very much!
> Best,
> Peng
> 
> --- In EnergyPlus_Support@xxxxxxxxxxxxxxx<mailto:EnergyPlus_Support%40yahoogroups.com>, "pzhaocsm" <pzhaocsm@> wrote:
> >
> > Hello Brent,
> >
> > Thank you very much for your reply! I really appreciate it! I have tried the MicroCoGeneration.idf already, and I got some problem. As I asked in message # 17081. I reproduce the question and paste here:
> > Thanks a lot again!
> >
> > Hello,
> > I have tried the MicroCoGeneration.idf file. The MicroCHP unit is currently providing around 50% of the total heating load (generator operation scheme: follow thermal), but I want the MicroCHP unit provide 100% heating load. Because the Generator:MicroCHP is not normalized, I can not simply increase its capacity from current 5kW to 10kW, so I added another MicroCHP unit working parallel with the first one. But the simulation result is: the total thermal output of
> > the two MicroCHP units is still 50% of the total heating load, both of them are working, but both of their thermal and electric output reduced to 50% rated output, My question is: How can the two MicroCHP units working parallel at their rated output to meet the thermal load?
> >
> > Thank you very much! I am looking forward to discussing with you.
> > Best,
> > Peng
> >
>




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