S_LOSS Units Antti-L Super Moderator Posts: 403 Threads: 18 Joined: May 2010 28-08-2019, 01:52 PM (This post was last modified: 28-08-2019, 02:04 PM by Antti-L.) Returning back to your explicit request: (28-08-2019, 03:11 AM)Dianaprz7 Wrote: I would like to know how the S_LOSS is calculated and how can I enter 20% of self-discharge using S_LOSS attribute.See Part II, pages 254–255.  The standard way of calculating the loss in a timeslice storage is given on page 254 (STG_LOSS>0). If defining it on the basis of equilibrium loss (STG_LOSS<0), the loss is calculated differently (exponentially), but taking into account the storage time in the same way as shown on page 254:    (1-EXP(STG_LOSS×G_YRFR(r,s)/RS_STGPRD(r,s))) As shown above, for each timeslice, the storage time is G_YRFR(r,s)/RS_STGPRD(r,s) (in years), where RS_STGPRD is the number of cycles under the parent timeslice. STG_LOSS>0 defines the loss in proportion to the initial storage level during one year’s storage time. STG_LOSS<0 defines an equilibrium loss, i.e. how much the annual losses would be if the storage level is kept constant. It is not obvious to say how you could enter a 20% of self-discharge using S_LOSS attribute, because you are not telling in which time frame your 20% self-discharge would occur.  For a 20% self-discharge in one year you can enter STG_LOSS=0.2.  For a 20% self-discharge in one hour you could enter STG_LOSS=‒0.2×8760 (equilibrium loss). « Next Oldest | Next Newest »

 Messages In This Thread S_LOSS Units - by Dianaprz7 - 28-08-2019, 03:11 AM RE: S_LOSS Units - by Antti-L - 28-08-2019, 03:56 AM RE: S_LOSS Units - by Antti-L - 28-08-2019, 01:52 PM RE: S_LOSS Units - by Dianaprz7 - 28-08-2019, 03:20 PM

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