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Table 3 Capacity PNSRL ITRL calculations for the nuclear reactor example

From: A robust system maturity model for complex systems utilizing system readiness level and Petri nets

Technology ITRL formula ITRL value
Control rods \(\hbox {ITRL}_1 =\frac{\left( {\frac{\left( {1\times 6} \right) +3}{2}+\frac{\left( {1\times 6} \right) +5}{2}} \right) }{2}\) 5.0
Cooling towers \(\hbox {ITRL}_2 =\frac{\left( {\frac{\left( {1\times 8} \right) +5}{2}+\frac{\left( {1\times 8} \right) +3}{2}} \right) }{2}\) 6.0
Reactor \(\hbox {ITRL}_3 =\frac{\left( {\frac{\left( {1\times 4} \right) +3}{2}+\frac{\left( {1\times 4} \right) +4}{2}} \right) }{2}\) 3.75
Condenser \(\hbox {ITRL}_4 =\frac{\left( {\frac{\left( {2\times 2} \right) +5}{3}+\frac{\left( {2\times 2} \right) +2}{3}+\frac{\left( {2\times 2} \right) +1}{3}} \right) }{3}\) 2.22
Steam generator \(\hbox {ITRL}_5 =\frac{\left( {\frac{\left( {1\times 5} \right) +3}{2}+\frac{\left( {1\times 5} \right) +4}{2}} \right) }{2}\) 4.25
Turbine \(\hbox {ITRL}_6 =\frac{\left( {\frac{\left( {1\times 3} \right) +4}{2}+\frac{\left( {1\times 3} \right) +5}{2}+\frac{\left( {1\times 3} \right) +1}{2}} \right) }{3}\) 3.17
Generator \(\hbox {ITRL}_7 =\frac{\left( {\frac{\left( {1\times 9} \right) +7}{2}+\frac{\left( {1\times 9} \right) +9}{2}} \right) }{2}\) 8.5