Engineering, 24.06.2020 02:01 alisonlebron15
Steam leaves the boiler of a 100 mw rankine cycle power plant at 400 C and 3.5 MPa. The turbine has an isentropic efficiency of 85% and exhausts at 15 kPa. In the condenser, the water is subcooled to 38 C by lake water at 13 C. The pump isentropic efficiency is 75%.
Part a) Draw and label the T-s diagram for this cycle
Part b) Determine the cycle’s thermal efficiency
Part c) Determine the mass flow rate of the steam in the boiler (kg/h)
Part d) Determine the back-work ratio
Part e) Determine the minimum required cooling water flow rate if regulations limit the cooling water temperature rise to 10°C (kg/h)
Answers: 3
Engineering, 04.07.2019 18:10, siri5645
At 12 noon, the count in a bacteria culture was 400; at 4: 00 pm the count was 1200 let p(t) denote the bacteria cou population growth law. find: (a) an expression for the bacteria count at any time t (b) the bacteria count at 10 am. (c) the time required for the bacteria count to reach 1800.
Answers: 1
Engineering, 04.07.2019 18:10, Strick1530
Which of the following components of a pid controlled accumulates the error over time and responds to system error after the error has been accumulated? a)- proportional b)- derivative c)- integral d)- on/off.
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Engineering, 04.07.2019 18:10, 0436500
Aturning operation is performed with following conditions: rake angle of 12°, a feed of 0.35 mm/rev, and a depth of cut of 1.1 mm. the work piece is aluminum alloy 6061 with t6 heat treatment (a16061-t6). the resultant chip thickness was measured to be 1.0 mm. estimate the cutting force, fc. use shear stress of 207 mpa and coefficient of friction on the tool face of 0.6.
Answers: 1
Steam leaves the boiler of a 100 mw rankine cycle power plant at 400 C and 3.5 MPa. The turbine has...
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