subject

Engineering, 02.06.2020 13:57 ily50

Helium is used as the working fluid in a Brayton cycle with regeneration. The pressure ratio of the cycle is 8, the compressor inlet temperature is 300 K, and the turbine inlet temperature is 1800 K. The effectiveness of the regenerator is 75 percent. Determine the thermal efficiency and the required mass flow rate of helium for a net power output of 60 MW, assuming both the compressor and the turbine have an isentropic efficiency of (a) 100 percent and (b) 80 percent. The properties of Helium are cp = 5.1926 kJ/kg. K and k = 1.667.

ansver

Answers: 3

Show answers

Another question on Engineering

question

Engineering, 04.07.2019 18:10

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

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

question

Engineering, 04.07.2019 18:20

For a gate width of 2 m into the paper, determine the force required to hold the gate abc at its location.

Answers: 1

question

Engineering, 04.07.2019 19:10

The short distance from the objective lens to the object causes problems at high magnification. which of the following is the most serious? a. cleaning the object surface b. positioning the object c. reflection from the object surface. d. illumination of the object

Answers: 1

You know the right answer?

Helium is used as the working fluid in a Brayton cycle with regeneration. The pressure ratio of the...

Questions

question

Mathematics, 30.06.2019 05:30

Mathcheck all that are true. * linear angles are complementary. corresponding angles are congruent.,< < alternate interior angles are suppleme...

question

Biology, 30.06.2019 05:30

What is the range for the following set of measurements? 27c, 12c, 31c, 19c, 23c, 11c, 17c. a. 0c to 100c b. 1c c. 11c to 31c d. 27c to 17c...

question

Mathematics, 30.06.2019 05:30

Something about evaluating numbers or something. question is in the picture....

question

History, 30.06.2019 05:30

What is the impact of cultural beliefs on gender, race, and ethnicity?...

question

Spanish, 30.06.2019 05:30

Will mark read the following paragraph and complete each blank with either the preterite or imperfect form of the verb in parentheses. la fiesta (se...

question

Mathematics, 30.06.2019 05:30

What are the solutions to the quadratic equation (5y + 6)2 = 24? a) y = and y = b) y =&...

question

Spanish, 30.06.2019 05:30

Estaran juntos para siempre. correct or incorrect...

question

Mathematics, 30.06.2019 05:30

Choose the inequality that models the situation. the fundraising committee gets $10 per donation d. they need to raise at least $800 for a new piece o...

question

History, 30.06.2019 05:30

How were the 18-century french revolutionaries inspired by the enlightenment...

question

Mathematics, 30.06.2019 05:30

Solve and check the following equation. 8d + 21 = 12d + 5 d =...

question

Arts, 30.06.2019 05:30

How can footsteps be muffled when filming takes place?...

question

Geography, 30.06.2019 05:30

Metamorphic rocks that melt in a hot fluid can re-crystallize into a different form of rock. select the best answer from the choices provided t f...

question

Mathematics, 30.06.2019 05:30

•the tale shows the function g (x). select from the drop-down menu to correctly compare g(x) and f(x) =2(4^x)•...

question

Biology, 30.06.2019 05:30

Metamorphic rocks that melt in a hot fluid can re-crystallize into a different form of rock. select the best answer from the choices provided t f...

question

Mathematics, 30.06.2019 05:30

Pls answer now will earn brainliest if right...

question

History, 30.06.2019 05:30

Which of these events happened in the war of 1812? a) the british took back control of florida. b) president adams became a prisoner of war. c) mor...

question

Physics, 30.06.2019 05:30

Middle schoolphysics 20 points how much force would you need to use in order to accelerate an 80k shopping cart to 0.2 m/s^2 (f=ma)...

question

History, 30.06.2019 05:30

President grants support of the enforcement acts showed that he wanted to do which of the following a- make southern whites give their land to african...

question

History, 30.06.2019 05:30

Why was sandra day o’connor important? she was the first female supreme court justice. she served on the arizona state senate. she was assistant atto...

question

Mathematics, 30.06.2019 05:30

An airplane flies 2700 miles to los angeles to nyc. when the plane flies back to la, is it flying in a negative direction? use absolute value to just...

More questions: Engineering Another questions

Questions on the website: 13722363