Question

10 A cogeneration steam power system is shown below. When maximum process heating is required, the condition is * S (1 Point)
valve 6 5 Boiler Process heater Condenser 3 8 Mixing chamber Pump II 2 Pump 1 m5 = m6 = 0 m6 = m7 = 0 m7 = 0 None of the abov
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Answer #1

Answer :

m6=m7=0

Explanation:

Maximum process heating is achieved when all the steam leaving the boiler is directed to the expansion valve.( m4=m5) & (m6=m7=0) No power is produced during this mode.

when there is no need for process heat m5=m6=0.during this condition all the steam is passes through the turbine and condenser.

When there is a high demand for process heat all the steam is routed to the process heater and non to the condenser.m7=0

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