PhD Thesis - Energy Systems Research Unit - University of Strathclyde

No
(Figure 6.7)
No
No
No
No
Yes
Is anaerobic digestion
being used ?
Wet Animal Feed to
anaerobic digester ?
Dry Animal Feed to
anaerobic digester ?
No
Crop Residue to
anaerobic digester ?
Crop Residue
to Gasifier ?
Dry Animal Feed
to Gasifier ?
No
Crop Residue
as 'Other' fuel ?
Dry Animal Feed
as 'Other' fuel ?
Yes
Is j = 0 ?
No
Is Batch
> 24 ?
Yes
Yes
Send WAFDayOld to
Figure 6.4 as the
available feedstock.
Yes
Is j = 0 ?
No
Yes
No
z = 2
Is Batch
> 48 ?
Yes
WAFDay = WAFDay
+ Wet AF / Timest eps
Yes
Send DAFDayOld to
Figure 6.4 as the
available feedstock.
Yes
Yes
Yes
Yes
Is DayCount1
> 0 ?
Yes
DAFDay = DAFDay +
DryAF / Timesteps
Is DayCount2
> 0 ?
Yes
No
z = 3
214
No
Is Batch
> 72 ?
Yes
a = z / FermNo
DayCount1 =
DayCount1 + 1
No
z = 4
Is DayCount1
> z ?
Yes
WAFDayOld = WAFDay / a
WAFDay = 0
No
DayCount2 =
DayCount2 + 1
Is DayCount2
> z ?
Yes
DAFDayOld = DAFDay / a
DAFDay = 0
Send Residue amount to Figure 6.4
Is Batch
> 96 ?
Yes
No
No
z = 5
DayCount1 = 0
Is Batch
> 120 ?
Yes
Is WAFDay
> 0 ?
No
DayCount1 = 1
No
No
DayCount2 = 0
No
DayCount2 = 1
Outputs as calculated
throughout process
No
z = 6
Yes
Is DayCount1
= 0 ?
Yes
Is DAFDay >
0 ? Yes
Send Residue to Figure 6.1 . This amount is put into storage and the outputs
produced and energy required are calculated as described in Figure 6.3.
Send DryAF to Figure 6.1 . This amount is put into storage and the outputs
produced and energy required are calculated as described in Figure 6.3.
Assign Residue amount to
chosen 'Other' category
Assign DryAF amount to
chosen 'Other' category
Figure 6.8 Fermentation Use of Residues Algorithm
WAFDayOld = 0 Yes
DAFDayOld = 0 Yes
No
Is DayCount1
= 0 ?
Is DayCount2
= 0 ?
Is DayCount2
= 0 ?
Yes
No
No