Electrolyser Modelling
#44
(17-05-2019, 10:24 PM)Antti-L Wrote: Yes, I understand you are a beginner.  I am happy to try and help beginners on this Forum when I have time (that is in my free time; am I not getting paid for giving this kind of help).

So, in the beginning of this long thread I gave you an example for defining partial load efficiencies. In the example I suggested using ACT_EFF(NRG), which would have worked perfectly, but you chose not to follow my suggestion. Then you came back and complained that the model does not work...  So, seems like I wasted my time?

The primary group (PCG) defines the activity in terms of some process flows.  Assume that the NRG outputs define the activity. In that case the shadow side is the input side. For defining the process transformation, you then also need to define the relation on that other side, i.e. between the main process flows on the shadow side and the activity. This is what ACT_EFF does.  And that's why in ACT_EFF you specify how much activity is produced per one unit of flow(s) of a single commodity or group of commodities on the shadow side, not on the PCG side.

So, for example, specifying ACT_EFF(NRG)=0.6 would define that 0.6 units of activity is produced per 1 unit of NRG inputs. Similarly, specifying ACT_EFF(ELC)=0.4 would define that 0.4 units of activity is produced per 1 unit of ELC input.

In this context, your ACT_EFF(HYGNtc)=0.017288462 would seem to be meaningless, because HYGNtc is not an input commodity (it is not on the shadow side).  But defining such is nonetheless supported for the special purpose I have described (as a multiplier for defining differentiated efficiencies for each PCG commodity produced). But if you define such, you cannot model partial load efficiencies (that's the documented limitation of the current implementation).

For the other question, please see my suggestion below. Feel free to disregard my  suggestion, and try something else.
Thank you very much Antti. I am very grateful to you. You have been replying for all my questions irrespective of the working hours. Without your support, it would have been difficult to proceed with my thesis. I am extremely sorry, I overlooked the NRG mentioned in the CommGrp in the example mentioned by you. That's why this happened. Now I understood what it means by the shadow side.

Thanks for the suggestion on electrolyser stack modelling. I will test that with my model and see the results.

Regards
Abi Afthab
Reply


Messages In This Thread
Electrolyser Modelling - by MohammedAbiAfthab - 08-04-2019, 02:43 PM
RE: Electrolyser Modelling - by Antti-L - 08-04-2019, 03:33 PM
RE: Electrolyser Modelling - by Pernille.S - 08-04-2019, 06:58 PM
RE: Electrolyser Modelling - by Antti-L - 09-04-2019, 03:10 AM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 11-04-2019, 05:54 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 02-05-2019, 08:08 PM
RE: Electrolyser Modelling - by Antti-L - 02-05-2019, 08:26 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 02-05-2019, 09:03 PM
RE: Electrolyser Modelling - by Antti-L - 02-05-2019, 09:36 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 03-05-2019, 03:11 PM
RE: Electrolyser Modelling - by Antti-L - 03-05-2019, 03:55 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 09-05-2019, 02:24 AM
RE: Electrolyser Modelling - by Anjana - 10-05-2019, 02:08 PM
RE: Electrolyser Modelling - by Anjana - 10-05-2019, 02:20 PM
RE: Electrolyser Modelling - by Antti-L - 05-05-2019, 11:21 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 06-05-2019, 01:42 PM
RE: Electrolyser Modelling - by Pernille.S - 06-05-2019, 05:58 PM
RE: Electrolyser Modelling - by Antti-L - 06-05-2019, 07:51 PM
RE: Electrolyser Modelling - by Pernille.S - 07-05-2019, 01:00 PM
RE: Electrolyser Modelling - by Pernille.S - 08-05-2019, 02:21 PM
RE: Electrolyser Modelling - by Antti-L - 08-05-2019, 02:31 PM
RE: Electrolyser Modelling - by Pernille.S - 08-05-2019, 02:35 PM
RE: Electrolyser Modelling - by Antti-L - 09-05-2019, 03:19 AM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 09-05-2019, 03:27 AM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 09-05-2019, 07:32 PM
RE: Electrolyser Modelling - by Antti-L - 09-05-2019, 08:16 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 10-05-2019, 01:28 AM
RE: Electrolyser Modelling - by Antti-L - 10-05-2019, 02:55 AM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 10-05-2019, 07:03 AM
RE: Electrolyser Modelling - by Antti-L - 10-05-2019, 02:48 PM
RE: Electrolyser Modelling - by Anjana - 10-05-2019, 03:41 PM
RE: Electrolyser Modelling - by Anjana - 17-05-2019, 12:54 PM
RE: Electrolyser Modelling - by Antti-L - 12-05-2019, 04:31 AM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 15-05-2019, 09:00 PM
RE: Electrolyser Modelling - by Antti-L - 15-05-2019, 10:32 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 17-05-2019, 02:20 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 17-05-2019, 06:26 PM
RE: Electrolyser Modelling - by Antti-L - 17-05-2019, 01:50 PM
RE: Electrolyser Modelling - by Anjana - 17-05-2019, 02:15 PM
RE: Electrolyser Modelling - by Anjana - 17-05-2019, 07:30 PM
RE: Electrolyser Modelling - by Antti-L - 17-05-2019, 07:37 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 17-05-2019, 08:58 PM
RE: Electrolyser Modelling - by Antti-L - 17-05-2019, 10:24 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 17-05-2019, 10:49 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 06-06-2019, 02:16 PM
RE: Electrolyser Modelling - by Antti-L - 18-05-2019, 09:35 PM
RE: Electrolyser Modelling - by Anjana - 19-05-2019, 02:38 AM
RE: Electrolyser Modelling - by Anjana - 18-05-2019, 11:17 PM
RE: Electrolyser Modelling - by Anjana - 18-05-2019, 11:59 PM
RE: Electrolyser Modelling - by Antti-L - 19-05-2019, 12:28 AM
RE: Electrolyser Modelling - by Anjana - 19-05-2019, 01:15 AM
RE: Electrolyser Modelling - by Anjana - 19-05-2019, 01:19 AM
RE: Electrolyser Modelling - by Antti-L - 19-05-2019, 01:34 AM
RE: Electrolyser Modelling - by Antti-L - 06-06-2019, 10:25 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 12-06-2019, 02:58 AM
RE: Electrolyser Modelling - by Antti-L - 12-06-2019, 02:05 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 06-07-2019, 01:15 AM
RE: Electrolyser Modelling - by Antti-L - 06-07-2019, 04:06 AM
RE: Electrolyser Modelling - by Antti-L - 08-07-2019, 02:44 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 08-07-2019, 04:11 PM
RE: Electrolyser Modelling - by Antti-L - 08-07-2019, 04:18 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 08-07-2019, 05:34 PM
RE: Electrolyser Modelling - by Antti-L - 08-07-2019, 06:09 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 08-07-2019, 06:38 PM
RE: Electrolyser Modelling - by MohammedAbiAfthab - 29-08-2019, 05:17 PM

Forum Jump:


Users browsing this thread: 1 Guest(s)