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7MPa and 550 deg C and exhausts as 20kPa. Determine the turbine work (BTU/hr) if the mass of steam is 2.25 kg/s. Use the values in the picture if necessar

7MPa and 550 deg C and exhausts as 20kPa. Determine the turbine work (BTU/hr) if the mass of steam is 2.25 kg/s. Use the values in the picture if necessar

Elements Of Electromagnetics
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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Steam turbine receives steam at 7MPa and 550 deg C and exhausts as 20kPa. Determine
the turbine work (BTU/hr) if the mass of steam is 2.25 kg/s.

Use the values in the picture if necessary

7. Steam turbine receives steam at 7MPa and 550 deg C and exhausts as 20kPa. Determine the turbine work (BTU/hr) if the mass of steam is 2.25 kg/s.
Transcribed Image Text:7. Steam turbine receives steam at 7MPa and 550 deg C and exhausts as 20kPa. Determine the turbine work (BTU/hr) if the mass of steam is 2.25 kg/s.
Use these values when necessary: Specific Heat Ratio (k) O2 - 1.395 CO2 - 1.288 Cpwater - 4.187 kJ/kg - K; Cpair - 1 kJ/kg - K; Cpateam - 2 kJ/kg - K H> - 1.4 He - 1.667 NHа - 1.304 N2 - 1.399 Hg - 1.666 CH, - 1.321 1 kg °C to K - (use + 273.15) 1 bar = 100 kPa 1 BTU = 1.055 kJ = 778 ft - lb 1 HP = 2.205 lb 0.746 kW = 2545 BTU/hr @ 1.03425 MPa: @ 2.5 MPa: @ 7MPA and 550 deg C: hg = 2779.4 kJ/kg; S, = 6.5748 kJ/kg - K 2803.1 kJ/kg; Sg %3D ha 6.2575 kJ/ kg - K %3D h, = 3530.9 kJ/kg; si = 6.9486 kJ/kg - K
Transcribed Image Text:Use these values when necessary: Specific Heat Ratio (k) O2 - 1.395 CO2 - 1.288 Cpwater - 4.187 kJ/kg - K; Cpair - 1 kJ/kg - K; Cpateam - 2 kJ/kg - K H> - 1.4 He - 1.667 NHа - 1.304 N2 - 1.399 Hg - 1.666 CH, - 1.321 1 kg °C to K - (use + 273.15) 1 bar = 100 kPa 1 BTU = 1.055 kJ = 778 ft - lb 1 HP = 2.205 lb 0.746 kW = 2545 BTU/hr @ 1.03425 MPa: @ 2.5 MPa: @ 7MPA and 550 deg C: hg = 2779.4 kJ/kg; S, = 6.5748 kJ/kg - K 2803.1 kJ/kg; Sg %3D ha 6.2575 kJ/ kg - K %3D h, = 3530.9 kJ/kg; si = 6.9486 kJ/kg - K
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