subject
Engineering, 14.09.2019 01:30 nard28

Apump supplies 2kg/s of water at 20 bar and 40°c to a boiler. the boiler adds heat at a rate of 5713kw to the water (you may assume that this is a constant pressure process). steam from the boiler passes through a steam turbine and exits at 10kpa, 60°c. (i) calculate the enthalpy rise of the water as it passes through the boiler. (ii) determine the approximate temperature of the steam as it leaves the boiler. (iii) what state is the steam leaving the steam turbine? (iv) calculate the entropy change in the steam as it passes through the turbine.

ansver
Answers: 3

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Afull journal bearing has a journal diameter of 27 mm, with a unilateral tolerance of -0.028 mm. the bushing bore has a diameter of 27.028 mm and a unilateral tolerance of 0.04 mm. the l/d ratio is 0.5. the load is 1.3 kn and the journal runs at 1200 rev/min. if the average viscosity is 50 mpa-s, find the minimum film thickness, the power loss, and the side flow for the minimum clearance assembly.
Answers: 1
question
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
question
Engineering, 04.07.2019 18:10
Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)
Answers: 3
question
Engineering, 04.07.2019 18:10
Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
Answers: 2
You know the right answer?
Apump supplies 2kg/s of water at 20 bar and 40°c to a boiler. the boiler adds heat at a rate of 5713...
Questions
question
Mathematics, 01.03.2021 17:20
question
Mathematics, 01.03.2021 17:20
question
Computers and Technology, 01.03.2021 17:20
question
Mathematics, 01.03.2021 17:20
Questions on the website: 13722363