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
Rainbow [258]
3 years ago
15

A steam pipe for a 300-m-tall building receives superheated steam at 200 kPa at ground level. At the top floor the pressure is 1

25 kPa, and the heat loss in the pipe is 110 kJ/kg. What should the inlet temperature be so that no water will condense inside the pipe?
Physics
1 answer:
ohaa [14]3 years ago
8 0

Answer:

inlet temperature is 170^{\circ}Cbe so that no water will condense inside the pipe

Explanation:

Assumptions,

  • No change in the kinetic energy
  • Steady state
  • single inlet and exit flow

The energy equation is given by

q+h_i=h_e+gZ_e

No condensation  means

h_{e}=h_{g} \text { at } 125k P a=2685.4 \mathrm{kJ} / \mathrm{Kg}

h_i=h_e+gZ_e-q

Substituting the values,

=2685.4+\frac{9.807 \times 300}{1000} -(-110)

=2685.4+\frac{2942.1}{1000} -(-110)

=2685.4+ 2.9421 -(-110)

=2685.4+ 2.9421 + 110

=2798.34 kJ/kg

At 200 kPa T\sim 170  

You might be interested in
Nuclear fission is used for nuclear power plants because it produces what?
xenn [34]
It produces Heat Energy that can be used to drive steam turbines to generate Electricity.
4 0
3 years ago
The chart below shows the average surface temperature or temperature range for each of the eight planets.
Vaselesa [24]

Answer:

A) Earth and the other inner planets have higher average surface temperatures than the outer planets.

Explanation:

the earth and the other inner planets have higher average surface temperatures than the outer planets.

The reason for this response is due to the distance between the sun and the respective planet, the source of energy generation is the sun and the only way in which the temperature increase of each planet is guaranteed is by radiation, the further away a planet is from its star, its temperature will decrease. Although it is also important to highlight the atmospheric composition of the planet if this planet in its stratosphere has high density clouds that do not allow the entry of solar radiation, the temperature of the planet's surface will not increase, independent of the distance from the sun, but these are more complex cases where specialists in that area enter to perform a study in detail.

4 0
3 years ago
Read 2 more answers
Main ingredient of all cells
Sati [7]
Chloroplast...................
7 0
3 years ago
Why do we need body membrane
lukranit [14]

So we have a structured form, but can still move. If we had a cell wall we would be stiff objects since it’s just a cell membrane we can still have movement
8 0
3 years ago
how much heat is required to raise the temperature 500 of song of iron from 50°to 250°c? (take c=480j/kg°c)​
Mars2501 [29]

Answer:

Explanation:

523 degrees

5 0
2 years ago
Other questions:
  • Which rock would have the fastest rate of weathering in a warm, wet climate?
    6·2 answers
  • What are the independent and dependent variables?
    11·1 answer
  • How do the orbits of the planets farthest from the sun compare to the orbits of the planets closest to the sun?
    5·1 answer
  • A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.70 ✕ 107 km. Radio waves travel at
    6·1 answer
  • If we took our laboratory spring to the moon, how accurately would it measure the mass? Why?
    7·1 answer
  • What is the wavelength of an FM radio
    6·1 answer
  • Name and draw the circuit symbols for the
    10·1 answer
  • How do you change yoru name on brainly
    8·2 answers
  • What does flowing electrical charge produce?
    7·1 answer
  • Two objects perform the same task. One has thousands of moving parts while the other has no moving parts. What are they?.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!