Engineering, 13.09.2019 23:30 budjasdatazaki467
Asteam power plant operates on an ideal regenerative rankine cycle with one open feedwater heater operating at 0.125 mpa. steam enters the first turbine stage at 15 mpa, 600 oc. condensate exiting the feedwater as saturated liquid at 0.125 mpa. the condenser pressure is 2.5 kpa. for isentropic processes in the two turbine stages and the pump, determine the followings: a) the net work of the cycle in kj/kg; b) the mass flow rate into the first-stage turbine, in kg-hr, if the net power developed for this power plant is 212 mw. c) the heat transfer into the working fluid through the boiler in kj/kg; d) the thermal efficiency of the cycle in %.
Answers: 3
Engineering, 04.07.2019 18:20, AnonymousLizard52303
A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.
Answers: 3
Engineering, 04.07.2019 18:20, Doogsterr
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
Engineering, 04.07.2019 19:10, jimena15
10 kg of co2 is initially contained at 400 kpa and 300 k. the gas constant for carbon dioxide is 189 j/lkg k) and has a specific heat ratio, k, of 1.289. isentropic expansion then occurs until the pressure is 200 kpa. a) determine the initial volume of co2 in m. b) determine the final temperature in k. c) determine the work done by the system during the expansion kl.
Answers: 2
Asteam power plant operates on an ideal regenerative rankine cycle with one open feedwater heater op...
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