Electrolyser Modelling

[Anjana]

Thanks a lot, yes I can see them now.

Dear Antti, Thank you once again for all your help on partial load modelling on electrolyser Abi Mohammed is carrying out. There are three sets of equiation developed for partial load modelling, 
1) EQE_ACTEFF  =E=  Process Activity Efficiency (=), example equations are: 
EQE_ACTEFF(REG1,2018,2018,TESTELSR,NRG,IN,SD)..  - 57.8420451744059*VAR_ACT(REG1,2018,2018,TESTELSR,SD) + VAR_FLO(REG1,2018,2018,TESTELSR,ELC,SD) - 56.8420140553856*VAR_UPS(REG1,2018,2018,TESTELSR,SD,FX) =E= 0 ; (LHS = 0)
     
EQE_ACTEFF(REG1,2018,2018,TESTELSR,NRG,IN,SN)..  - 57.8420451744059*VAR_ACT(REG1,2018,2018,TESTELSR,SN) + VAR_FLO(REG1,2018,2018,TESTELSR,ELC,SN) - 56.8420140553856*VAR_UPS(REG1,2018,2018,TESTELSR,SN,FX) =E= 0 ; (LHS = 0)

Then 2) ---- EQ_CAPLOAD  =G=  Augmented capacity-activity

EQ_CAPLOAD(REG1,2018,2018,TESTELSR,SD,LO)..  VAR_ACT(REG1,2018,2018,TESTELSR,SD) - 0.378617286213058*VAR_CAP(REG1,2018,TESTELSR) + 0.378617286213058*VAR_UPS(REG1,2018,2018,TESTELSR,S,N) =G= 0 ; (LHS = 0)
     
EQ_CAPLOAD(REG1,2018,2018,TESTELSR,SD,UP)..  - VAR_ACT(REG1,2018,2018,TESTELSR,SD) + 37.8617286213058*VAR_CAP(REG1,2018,TESTELSR) - 37.8617286213058*VAR_UPS(REG1,2018,2018,TESTELSR,S,N) =G= 0 ; (LHS = 0)
     
Then 3) ---- EQ_ACTPL  =G=  Activity partial loads

EQ_ACTPL(REG1,2018,2018,TESTELSR,SD)..  0.392896432500393*VAR_ACT(REG1,2018,2018,TESTELSR,SD) - 5.27374667249148*VAR_CAP(REG1,2018,TESTELSR) + 5.27374667249148*VAR_UPS(REG1,2018,2018,TESTELSR,S,N) + VAR_UPS(REG1,2018,2018,TESTELSR,SD,FX) =G= 0 ; (LHS = 0)
     
EQ_ACTPL(REG1,2018,2018,TESTELSR,SN)..  0.392896432500393*VAR_ACT(REG1,2018,2018,TESTELSR,SN) - 5.27374667249148*VAR_CAP(REG1,2018,TESTELSR) + 5.27374667249148*VAR_UPS(REG1,2018,2018,TESTELSR,S,N) + VAR_UPS(REG1,2018,2018,TESTELSR,SN,FX) =G= 0 ; (LHS = 0)
     
I tried to understand  the coefficient  and the equation meaning from the manual,, but could not make out.
For example, First set of equation EQE_ACTEFF, is for calculation of the modified efficiency, how the coefficient of VAR_UPS is calculated ?

I would be very grateful if you could help us to understand the coefficient calculation and interpretation of these equations. For parameter values, I enclose the dd file.

Thanking you once again,

Best regards

Anjana