Electrolyser Modelling
#12
A small addition to my previous explanations:

If you have read the documentation, you know that you can use ACT_LOSPL also without ACT_MINLD, although you can see that the documentation recommends to use ACT_MINLD. If you really decide NOT to define any ACT_MINLD, you will get partial efficiency losses even when the load is constant, as long as the load is below the minimum load of full efficiency (defined by ACT_LOSPL(UP)), just like you expected in the first place.

However, you should understand that using ACT_LOSPL without ACT_MINLD would force the total capacity to be on-line throughout the year. In general, that would not make much sense, if the load is quite low in proportion to the total capacity for long periods and would cause efficiency losses, but one would shut down any unneeded capacity for those periods.

Anyway, using your example again, assume that you remove ACT_MINLD and instead define the lower point by ACT_LOSPL:
Code:
PARAMETER ACT_LOSPL /
REG1.2005.TESTELSR.LO 0.4
/;
Then your online capacity will be 150, and the constant load is 67.254. The load level is thus 67.254/150=44.84%.  According to the other parameters (ACT_LOSPL(UP)=0.6, ACT_LOSPL(LO)=0.4 and ACT_LOSPL(FX)=0.32) the efficiency losses start at 76%, and the losses are 32% at 40% load.  Thus, according to the documentation, the losses at 44.84% should be

  LOSS = (0.76−44.84%)/(0.6×(1/0.4-1))×0.32/44.84% = 24.714%

The results from the modified model show that the efficiency losses are indeed 24.714% compared to the full load efficiency.
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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

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