Engineering, 22.12.2020 23:00, ajaydonlee
Steam enters the turbine at 8 MPa and 480 oC and expands to 0.7 MPa where some of the steam is extracted and diverted to the open feed water heater operating at 0.7 MPa. The remaining steam expands through the second stage turbine to the condenser pressure of 10 kPa. Saturated liquid water exists from the open feed water heater at 0.7 MPa. The isentropic efficiency of the each turbine is 85%. If the net power output of the cycle is 120 MW, determine a) the thermal efficiency and, b) the mass flow rate of steam entering the first stage of turbine
Answers: 3
Engineering, 04.07.2019 16:10, TheOriginalMeyah
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
Answers: 2
Engineering, 04.07.2019 18:10, leomessifanboy678
The filament of an incandescent lamp has a temperature of 2000k. calculate the fraction of radiation emitted in the visible light band if the filament is approximated as blackbody
Answers: 2
Engineering, 04.07.2019 19:10, Destinationz
Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?
Answers: 3
Steam enters the turbine at 8 MPa and 480 oC and expands to 0.7 MPa where some of the steam is extra...
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