subject
Engineering, 07.05.2020 02:12 tryintopassenioryear

A Brayton cycle with regeneration and reheat generates 10 MW of power. Air enters the compressor at 100 kPa and 300 K. The compressor operates with a pressure ratio of 12 and an isentropic efficiency of 80%. The air enters the high pressure turbine stage at 1400 K and exits at a pressure of 350 kPa. The air is reheated to 1400 K before entering the second turbine stage. Each turbine stage has an efficiency of 80%. The regenerator has an effectiveness of 80%. Using an air-standard analysis, determine:

a. The pressure and temperature at each state, in kPa and K,

b. The mass flow rate of air, in kg/s,

c. The heat addition rate in kW,

d. The thermal efficiency of the cycle, and

ansver
Answers: 2

Another question on Engineering

question
Engineering, 04.07.2019 18:10
Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10
Answers: 1
question
Engineering, 04.07.2019 18:10
Thermal stresses are developed in a metal when its a) initial temperature is changed b) final temperature is changed c) density is changed d) thermal deformation is prevented e) expansion is prevented f) contraction is prevented
Answers: 2
question
Engineering, 04.07.2019 18:10
The thermal expansion or contraction of a given metal is a function of the f a)-density b)-initial temperature c)- temperature difference d)- linear coefficient of thermal expansion e)- final temperature f)- original length
Answers: 2
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
You know the right answer?
A Brayton cycle with regeneration and reheat generates 10 MW of power. Air enters the compressor at...
Questions
question
Mathematics, 27.04.2021 16:30
question
Mathematics, 27.04.2021 16:30
question
Mathematics, 27.04.2021 16:30
question
Mathematics, 27.04.2021 16:30
Questions on the website: 13722367