An electric power generating plant has an output of 100 MW. The
boiler of the plant operates at 300 degrees celsius. The condenser
operates at 40 degrees celsius.
a. At what rate (joules per hour) must heat be supplied to the
boiler?
b. The condenser is cooled by water, which may undergo a
temperature rise of no more than 10 degrees celsius. What volume of
cooling water in cubic meters per hour is required to operate the
plant?
c. The boiler temperature is to be raised to 540 degrees celsius,
but the condensed temperature and electric output will remain the
same. Will the cooling water requirement be increased, decreased or
remain the same?
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