1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
balu736 [363]
3 years ago
9

A Brayton cycle with regeneration using air as the working fluid has a pressure ratio of 7. The minimum and maximum temperatures

in the cycle are 310 and 1150 K. Assuming an isentropic efficiency of 75 percent for the compressor and 82 percent for the turbine and an effectiveness of 65 percent for the regenerator. Determine the total exergy destruction associated with the cycle, assuming u source temperature of 1500 K and a sink temperature of 290 K. Also, determine the exergy of the exhaust gases at the exit of the regenerator. Use variable specific heats for air.

Physics
1 answer:
charle [14.2K]3 years ago
4 0

Answer:

The exergy is 279.77 kJ/kg

The exergy of the exhaust gases is 143.24 kJ/kg

Explanation:

the step by step is in the image

You might be interested in
A skateboarder, starting from the top of a ramp 4,5 m above the ground, skates down the ramp. The mass of the skateboarder and h
lozanna [386]

Answer:

Kinetic Energy at bottom=2886.5J (when g=9.8m/s²)

<em><u>OR</u></em>

2925J (if g=10m/s²)

6 0
3 years ago
Read 2 more answers
The magnitude of a component of a vector must be:
fenix001 [56]

Answer:

(d) Less than or equal to the magnitude of vector

Explanation:

The magnitude of any vector is vector sum of magnitude of its component

As magnitude of vector is sum of its component so magnitude of its component never be greater than the magnitude of vector

It can be equal to the magnitude of vector in one case when the magnitude of other component of the vector is zero

So it can be less or equal to the magnitude of vector  

6 0
3 years ago
What one part of a circuit might cause your calculator to be off?
Tanzania [10]

Resistors tell me if im right

7 0
3 years ago
For maximum benefit, you should exercise 5-7 times a week for 60 minutes and your heart rate should be between _____________ of
lana [24]

Answer:

60 to 80%

Explanation:

For maximum benefit, the heart rates during exercise regimes should be between<u> 60 to 80% </u>of an individual's maximum heart rate.

<em>The maximum heart rate varies from individuals to individuals and largely depends on age. It is calculated by subtracting one's age from 220. For example, a person that is 40 years old would have a maximum heart rate of;</em>

<em>   220 - 40 = 180 beats per minute.</em>

Such a person's heart rates during exercises should be between 108 and 144 beats per minute for maximum benefits.

5 0
3 years ago
In a simple series circuit, why does the bulb light up when you close the switch
photoshop1234 [79]
<span>closing the switch completes the circuit</span>
8 0
4 years ago
Other questions:
  • To determin the density of an empty plastic jug what would you measure
    5·1 answer
  • Give an explaination to the following formula p=I^2R
    11·1 answer
  • Compared to gamma rays, X-rays have relatively
    10·1 answer
  • How do you calculate the molecular mass of hydrogen sulfide, H2S in atomic mass unit u?
    8·1 answer
  • I have no idea how to solve this.
    12·1 answer
  • Daniel is holding an extremely hot cup of coffee in his hand he tells his friend that thermal energy is flowing from his hands t
    8·1 answer
  • An incident ray of light strikes a diamond at an angle of
    7·2 answers
  • A remote-control car's wheels initially rotate once every 0.57 seconds. It then goes for 3 complete turns. What is the wheel's a
    15·1 answer
  • How much heat (in calories) are needed to raise the temperature of 60 g of water
    9·1 answer
  • Good morning! can someone please answer this, ill give you brainliest and your earning 50 points.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!