PhD Thesis - Energy Systems Research Unit - University of Strathclyde
PhD Thesis - Energy Systems Research Unit - University of Strathclyde
PhD Thesis - Energy Systems Research Unit - University of Strathclyde
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(continued)<br />
Is Num<br />
= 5 ?<br />
No<br />
Is Num<br />
= 4 ?<br />
No<br />
Is Num<br />
= 3 ?<br />
No<br />
Is Num<br />
= 2 ?<br />
No<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Is Factor<br />
>= 5 ?<br />
No<br />
Is Factor = 4 ?<br />
No<br />
Is 4 <<br />
Factor < 5 ?<br />
No<br />
Is Factor = 3 ?<br />
No<br />
Is 3 <<br />
Factor < 4 ?<br />
No<br />
Is Factor = 2 ?<br />
No<br />
Is 2 <<br />
Factor < 3 ?<br />
No<br />
Is 1 <<br />
Factor < 2 ?<br />
No<br />
Is Factor<br />
< = 1 ?<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Yes<br />
Is Req /<br />
Rated < 5 ?<br />
No<br />
Yes<br />
PL5 = ( Req / 100 ) / (5 x Rated )<br />
PL4 = ( Req / 100 ) / (4 x Rated )<br />
Is Factor<br />
>= 4 ?<br />
No<br />
Is Factor<br />
>= 3 ?<br />
No<br />
Calculate Eff5 using PL5 and<br />
Eff4 using PL4 in Figure 5.1 0<br />
PL4 = ( Req / 100 ) / (4 x Rated )<br />
PL3 = ( Req / 100 ) / (3 x Rated )<br />
Calculate Eff4 using PL4 and<br />
Eff3 using PL3 in Figure 5.1 0<br />
PL3 = ( Req / 100 ) / (3 x Rated )<br />
PL2 = ( Req / 100 ) / (2 x Rated )<br />
Is Factor<br />
>= 2 ?<br />
No<br />
Calculate Eff3 using PL3 and<br />
Eff2 using PL2 in Figure 5.1 0<br />
PL2 = ( Req / 100 ) / (2 x Rated )<br />
PL1 = ( Req / 100 ) / Rated<br />
Is Factor<br />
>= 1 ?<br />
No<br />
PL = ( Req / 100 ) / (5 x Rated )<br />
Fuel Cell 1,2,3,4,5 ON<br />
PL = 100<br />
Fuel Cell 1,2,3,4,5 ON<br />
156<br />
No<br />
Is Req /<br />
Yes Yes<br />
Rat ed < 4 ?<br />
Calculate Eff2 using PL2 and<br />
Eff1 using PL1 in Figure<br />
PL1 = ( Req / 100 ) / Rated<br />
No<br />
Yes<br />
Is Req /<br />
Yes<br />
Rated < 3 ?<br />
No<br />
Yes<br />
Is Req /<br />
Yes<br />
Rated < 2 ?<br />
No<br />
Is Req /<br />
Yes Yes<br />
Rated < 1 ?<br />
No<br />
Is PL1 <<br />
Min?<br />
Yes<br />
Is PL5 <<br />
Min?<br />
Is Eff4 ><br />
Eff5 ?<br />
Is PL4 <<br />
Min?<br />
Yes<br />
Yes<br />
No<br />
Yes<br />
No Yes<br />
Is Eff3 ><br />
Eff4 ?<br />
Is PL3 <<br />
Min?<br />
No<br />
Yes<br />
No Yes<br />
Is Eff2 ><br />
Eff3 ?<br />
Is PL2 <<br />
Min?<br />
No<br />
Yes<br />
No Yes<br />
Is Eff1 ><br />
Eff2 ?<br />
No<br />
No<br />
Num = Number <strong>of</strong> Engines<br />
Rated = Rated Power<br />
PL = Percentage Load<br />
PL = ( Req / 100 ) / (4 x Rated )<br />
Fuel Cell 1,2,3,4 ON<br />
PL = ( Req / 100 ) / (5 x Rated )<br />
Fuel Cell 1,2,3,4,5 ON<br />
PL = ( Req / 100 ) / (4 x Rated )<br />
Fuel Cell 1,2,3,4 ON<br />
PL = 100<br />
Fuel Cell 1,2,3,4 ON<br />
PL = ( Req / 100 ) / (3 x Rated )<br />
Fuel Cell 1 ,2,3 ON<br />
PL = ( Req / 100 ) / (4 x Rated )<br />
Fuel Cell 1,2,3,4 ON<br />
PL = ( Req / 100 ) / (3 x Rated )<br />
Fuel Cell 1,2,3 ON<br />
PL = 100<br />
Fuel Cell 1,2,3 ON<br />
PL = ( Req / 100 ) / (2 x Rated )<br />
Fuel Cell 1 ,2 ON<br />
PL = ( Req / 100 ) / (3 x Rated )<br />
Fuel Cell 1 ,2,3 ON<br />
PL = ( Req / 100 ) / (2 x Rated )<br />
Fuel Cell 1 ,2 ON<br />
PL = 100<br />
Fuel Cell 1 ,2 ON<br />
PL = ( Req / 100 ) / Rated )<br />
Fuel Cell 1 ON<br />
PL = ( Req / 100 ) / (2 x Rated )<br />
Fuel Cell 1 ,2 ON<br />
PL = ( Req / 100 ) / Rated<br />
Fuel Cell 1 ON<br />
PL = 100<br />
Fuel Cell 1 ON<br />
PL = ( Req / 100 ) / Rated )<br />
Fuel Cell 1 ON<br />
PL = 0<br />
No Fuel Cells ON<br />
Figure 5.19 (cont) Determination <strong>of</strong> Percentage Load for a Fuel Cell