Engineering, 06.03.2020 19:17 GILLIG6003
Air and fuel enter a turbojet engine (turbine) having an enthalpy of 800 kJ/kg and arelative velocity is 15 m/s. The mixture exits with a relative velocity of 60m/s and an enthalpy of 650 kJ/kg. The mass flow rate is 30 kg/s, and the rate of heat loss is 1.5 kJ/s. what is the power output of the engine?
Answers: 2
Engineering, 04.07.2019 18:10, lillygrl100
For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater
Answers: 3
Engineering, 04.07.2019 18:20, miguel454545
Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.
Answers: 1
Engineering, 04.07.2019 19:10, LadyHolmes67
Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false
Answers: 3
Air and fuel enter a turbojet engine (turbine) having an enthalpy of 800 kJ/kg and arelative velocit...
Law, 04.03.2021 22:00
English, 04.03.2021 22:00
Mathematics, 04.03.2021 22:00
Mathematics, 04.03.2021 22:00
Biology, 04.03.2021 22:00