Engineering, 14.11.2019 22:31 Gattuso
Asteam power plant operatues on the reheat-regenerative rankine cycle with a closed feedwater heater. steam enters the turbine at 8 mpa and 500 ï‚°cat a rate of 15 kg/s and is condensed in the condenser at a pressure of 20 kpa. steam is reheated at 3 mpa to 500 ï‚°c. some steam is extracted from the low-pressure turbine at 1.0 mpa, is completely condensed in the closed feedwater heater at the same pressure. assuming an isentropic efficiency of 88 percent for both the turbine and the pump, determine (a) the temperature of the steam at the inlet of the closed feedwater heater, (b) the mass flow rate of the steam extracted from the turbine for the closed feedwater heater, (c) the net power output, and (d) the thermal efficiency.
Answers: 3
Engineering, 04.07.2019 18:10
The higher the astm grain size number, the finer the gran is. a)-true b)-false
Answers: 2
Engineering, 04.07.2019 18:10
Ahot wire operates at a temperature of 200°c while the air temperature is 20°c. the hot wire element is a tungsten wire of 5 um diameter and 2 mm in length. plot using excel current, heat transfer and heat generated by the wire for air velocity varying from 1-10 m/s in steps of lm/s? matlab the sensor voltage output, resistance, or assume nu 0.989 re033pr13 take air properties at tr (200°c20°c)/2 = 110°c properties of tungsten: c 0.13 kj/kg.k 3 p 19250 kg/m k (thermal conductivity) = 174 w/m.k
Answers: 2
Engineering, 04.07.2019 18:10
Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?
Answers: 3
Engineering, 04.07.2019 18:20
Steam enters a converging nozzle at 3.0 mpa and 500°c with a at 1.8 mpa. for a nozzle exit area of 32 cm2, determine the exit velocity, mass flow rate, and exit mach number if the nozzle: negligible velocity, and it exits (a) is isentropic (b) has an efficiency of 94 percent
Answers: 2
Asteam power plant operatues on the reheat-regenerative rankine cycle with a closed feedwater heater...
Biology, 16.11.2020 16:40
Computers and Technology, 16.11.2020 16:40
Mathematics, 16.11.2020 16:40
Mathematics, 16.11.2020 16:40