use steam tables in English units or EES. a. Saturated steam at 445 ⁰F is throttled adiabatically to 110 psia in a steady flow process. Calculate the lost work of the process if the surroundings are at temperature 70 ⁰F. [Answer: 68.9 Btu/lb.] b. Saturated steam 445 ⁰F is expanded reversibly and adiabatically in a turbine to 110 psia. Calculate the work of the turbine (= ideal work). [Note that some steam must condense. Answer: 811 Btu/lb.] c. What fraction of steam condensed in part b.? [Answer: 10%.]
use steam tables in English units or EES. a. Saturated steam at 445 ⁰F is throttled adiabatically to 110 psia in a steady flow process. Calculate the lost work of the process if the surroundings are at temperature 70 ⁰F. [Answer: 68.9 Btu/lb.] b. Saturated steam 445 ⁰F is expanded reversibly and adiabatically in a turbine to 110 psia. Calculate the work of the turbine (= ideal work). [Note that some steam must condense. Answer: 811 Btu/lb.] c. What fraction of steam condensed in part b.? [Answer: 10%.]
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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use steam tables in English units or EES.
a. Saturated steam at 445 ⁰F is throttled adiabatically to 110 psia in a steady flow process. Calculate the lost
work of the process if the surroundings are at temperature 70 ⁰F. [Answer: 68.9 Btu/lb.]
b. Saturated steam 445 ⁰F is expanded reversibly and adiabatically in a turbine to 110 psia. Calculate the
work of the turbine (= ideal work). [Note that some steam must condense. Answer: 811 Btu/lb.]
c. What fraction of steam condensed in part b.? [Answer: 10%.]
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