Engineering, 22.08.2019 16:20 sarinaneedshelp01
Consider a solar-pond power plant that operates on a simple ideal rankine cycle with refrigerant-134a as the working fluid. the refrigerant enters the turbine as a saturated vapor at 1.4 mpa and leaves at 0.65 mpa. the mass flow rate of the refrigerant is 3 kg/s. determine the thermal efficiency of the cycle. determine the power output of this plant.
Answers: 2
Engineering, 04.07.2019 18:10
Ariver flows from north to south at 8 km/h. a boat is to cross this river from west to east at a speed of 20 km/h (speed of the boat with respect to the earth/ground). at what angle (in degrees) must the boat be pointed upstream such that it will proceed directly across the river (hint: find the speed of the boat with respect to water/river)? a 288 b. 21.8 c. 326 d. 30.2
Answers: 3
Engineering, 04.07.2019 18:10
Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.
Answers: 3
Engineering, 04.07.2019 18:10
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
For each of the following process: a) sketch the p-v diagram, b)sketch t-s diagram, c) sketch t-v diagram, d) sketch the boundary work on one of the diagrams (a, b or c) and e) sketch the reversible heat transfer on one of the diagrams (a, b or c): 1- isobaric process from compressed liquid to superheated vapor 2- isothermal process from compressed liquid to superheated vapor 3- isentropic process from compressed liquid to superheated vapor
Answers: 3
Consider a solar-pond power plant that operates on a simple ideal rankine cycle with refrigerant-134...
Mathematics, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
Chemistry, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
World Languages, 27.10.2021 14:00
Chemistry, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
History, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
Mathematics, 27.10.2021 14:00
Physics, 27.10.2021 14:00
Business, 27.10.2021 14:00