Thermal treatment may include retrofitting a closed loop system to recirculate the heated water to the sea chest or the addition of a second sea chest system, allowing engine cooling water to be discharged through the idle sea chest.
42.
Then the closed loop system is globally asymptotically stable if the Nyquist locus does not penetrate the circle having as diameter the segment [-1 / \ mu _ 1,-1 / \ mu _ 2 ] located on the " x "-axis.
43.
Now you have a closed loop system . . . all of the CO2 produced by the power station gets " recycled " into bamboo . . . which is burned by the power station . . . which produces CO2 that goes back into more bamboo.
44.
The working fluid in a Rankine cycle can operate as a closed loop system, where the working fluid is recycled continuously, or may be an " open loop " system, where the exhaust steam is directly released to the atmosphere, and a separate source of water feeding the boiler is supplied.
45.
Assume two stable systems S _ 1 and S _ 2 are connected in a feedback loop, then the closed loop system is input-output stable if \ | S _ 1 \ | \ cdot \ | S _ 2 \ | . ( The norm can be the infinity norm, that is the size of the largest singular value of the transfer function over all frequencies.
