Model not solving
#7
(27-06-2019, 06:17 PM)Antti-L Wrote: Big models tend to call for some additional meticulousness in the modelling process.
I tested the run with all the Subreses listed below, by following my earlier advice, plus making small additional fine-tuning:
$BATINCLUDE elcconventionaltechs.dd
$BATINCLUDE elcrenewabletechs.dd
$BATINCLUDE backupboilers.dd
$BATINCLUDE centralised_alk_industry.dd
$BATINCLUDE centralised_alk_mobility.dd
$BATINCLUDE centralised_pem_industry.dd
$BATINCLUDE centralised_pem_mobility.dd
$BATINCLUDE centralised_pipeline_industry.dd
$BATINCLUDE centralised_pipeline_mobility.dd
$BATINCLUDE centralised_smr_industry.dd
$BATINCLUDE centralised_smr_mobility.dd
$BATINCLUDE centralised_tubetrailer_mobility.dd
$BATINCLUDE decentralised_alk_industry.dd
$BATINCLUDE decentralised_alk_mobility.dd
$BATINCLUDE decentralised_pem_industry.dd
$BATINCLUDE decentralised_pem_mobility.dd
$BATINCLUDE decentralised_smr_industry.dd
$BATINCLUDE decentralised_smr_mobility.dd

The resulting model had 1,595,487 equations, and the run solved quite nicely, in less than 500 seconds (about 8 minutes), see below the console output after crossover:


I see you have abandoned my suggestion for bounding the outflow of the storage in each timeslice by using FLO_SHAR, which you said you will incorporate.  May I ask why did you not incorporate it, but changed all storage to be AFC-based?
Dear Antti,

Regarding storage, later I decided to model based on a predefined storage size based on other simulation models. Since TIMES is not a simulation model, I thought this would be better. Therefore, what I have done is, I calculated Investment cost and Fixed O & M cost based on a fixed storage size.

I will give an example how I did it, it would be helpful if you could comment on this. For my hydrogen refuellling stations, I am modelling based on a 1000 kg/day refuelling station costs and parameters. So I know an optimized storage size for such a refuelling station (say 500 kg hydrogen capacity). Now I know the investment cost and fixed O&M cost for the same. Based on this I calculated the cost for one year (MEuro/PJa). A 1000*365 kg/year demand would have an investment cost which is equal to the capital cost of 500 kg storage capacity. This capital cost divided by (1000*365*1.19*10 ^-7) would give me cost per PJa. Since I have AFC based modelling for storage, my capacity would be the annual flow out of the storage which would be little higher than my annual demand (I have modelled in such a way that the hydrogen flows only through the storage). Therefore, the storage cost can be rightly reflected. I guess this approach is right. What do you think? 


Regards
Abi Afthab
Reply


Messages In This Thread
Model not solving - by MohammedAbiAfthab - 25-06-2019, 05:54 PM
RE: Model not solving - by Antti-L - 26-06-2019, 08:05 PM
RE: Model not solving - by MohammedAbiAfthab - 26-06-2019, 08:30 PM
RE: Model not solving - by MohammedAbiAfthab - 27-06-2019, 12:35 AM
RE: Model not solving - by MohammedAbiAfthab - 27-06-2019, 04:54 AM
RE: Model not solving - by Antti-L - 27-06-2019, 06:17 PM
RE: Model not solving - by MohammedAbiAfthab - 27-06-2019, 06:38 PM
RE: Model not solving - by MohammedAbiAfthab - 28-06-2019, 07:32 PM
RE: Model not solving - by Antti-L - 29-06-2019, 11:46 PM
RE: Model not solving - by MohammedAbiAfthab - 30-06-2019, 01:11 AM
RE: Model not solving - by Antti-L - 30-06-2019, 05:03 AM
RE: Model not solving - by MohammedAbiAfthab - 30-06-2019, 05:13 AM
RE: Model not solving - by MohammedAbiAfthab - 30-06-2019, 01:08 PM
RE: Model not solving - by MohammedAbiAfthab - 27-06-2019, 06:53 PM
RE: Model not solving - by Antti-L - 29-06-2019, 10:18 PM
RE: Model not solving - by Antti-L - 30-06-2019, 06:38 PM
RE: Model not solving - by MohammedAbiAfthab - 01-07-2019, 03:24 PM
RE: Model not solving - by MohammedAbiAfthab - 01-07-2019, 06:20 PM
RE: Model not solving - by MohammedAbiAfthab - 04-07-2019, 12:14 PM
RE: Model not solving - by MohammedAbiAfthab - 07-07-2019, 12:46 AM

Forum Jump:


Users browsing this thread: 1 Guest(s)