If the specific heat of the condenser cooling water is assumed to be unity and it is desired to limit the condenser cooling water temperature change to 50°F in the condenser, determine the pounds of cooling water required per pound of steam for the ideal Rankine cycle operated from 600 psia and 600°F to 2 psia. The condensate is assumed to be saturated liquid.
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Chapter 8 Problem 55
Question
If the specific heat of the condenser cooling water is assumed to be unity and it is desired to limit the condenser cooling water temperature change to 50°F in the condenser, determine the pounds of cooling water required per pound of steam for the ideal Rankine cycle operated from 600 psia and 600°F to 2 psia. The condensate is assumed to be saturated liquid.
Solution
Step 1 of 2
Consider the given data as follows.
The change in cooling water’s temperature is \(\Delta T = 50\;^\circ {\rm{F}}\).
From the steam tables, we can obtain the specific enthalpy as follows.
For \(2\;{\rm{psia}}\), the specific enthalpy of a saturated vapor is,
\({h_g} = 1116.1\;{\rm{Btu/l}}{{\rm{b}}_{\rm{m}}}\)
For \(600\;{\rm{psia}}\), the enthalpy of saturated liquid is,
\({h_f} = 616.7\;{\rm{Btu/l}}{{\rm{b}}_{\rm{m}}}\)
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full solution
full solution
Title
Thermodynamics and Heat Power 9
Author
Irving Granet, Jorge Alvarado, Maurice Bluestein
ISBN
9780367280918
If the specific heat of the condenser cooling water is assumed to be unity and it is desired to limit the condenser cooling water temperature change to 50°F in the condenser, determine the pounds of cooling water required per pound of steam for the ideal Rankine cycle operated from 600 psia and 600°F to 2 psia. The condensate is assumed to be saturated liquid.
Chapter 8 textbook questions
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Chapter 8: Problem 55 Thermodynamics and Heat Power 9