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tigry1 [53]
3 years ago
15

Consider a thermal energy reservoir at 1500 K that can supply heat at a rate of 150,000 kJ/h. Determine the exergy of this suppl

ied energy, assuming an environmental temperature 25 ℃. (provide answer in kW)
Engineering
1 answer:
anzhelika [568]3 years ago
8 0

Answer:

33.4KW

Explanation:

Firstly, we calculate the power index in a reversible heat engine which is given as;

n = 1 - T1/T2

T1 = atmospheric temperature 298k

T2 = reservoir temperature 1500k

n = 1 - 298/1500

n = 0.8013

output energy = n × energy input

0.8013×150000 = 120195KJ/hr

Power output = 120195KJ/hr/3600 = 33.4KW

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Ok there........................................................................
Juliette [100K]

Answer:

ok THERE

Explanation:

4 0
3 years ago
What does the branch of physics include
cricket20 [7]

Answer:

The branches of physics are;

  • Classical physics
  • Modern physics
  • Nuclear physics
  • Atomic physics
  • Geophysics
  • Biophysics

Explanation:

Physics is a branch of science that studies nature, properties of matter and energy. The subjects in study are; mechanics, light, heat, light, sound, electricity, properties of atoms and magnetism.

The common branches are;

  • Thermodynamics which that studies heat, how it is transferred and effects
  • Sound that studies production, properties and application of sound waves
  • Light that deals with properties,pysical aspects and objects that utilize light
  • Electricity and magnetism that studies charges, their effects and relation with magnetism
  • Classical physics that studies laws of motion and gravity
  • Modern physics that study theory of relativity and quantum mechanics
4 0
3 years ago
Which statement below can be used to read data from a file one character at a time?
Paraphin [41]

Answer:

b

Explanation: because it says input file.read

8 0
3 years ago
Which is/are not a mechanism commonly associated with tool wear (mark all that apply)?a. Adhesion b. Attrition c. Abrasion d. Co
butalik [34]

Answer: d)Coercion

Explanation:Tool wear is defined as the situation when the cutting tool is subjected to the regular process of cutting metal then they tend to wear because of the continuous action of cutting and facing stresses and pressure . The mechanism that does not happen during this process are coercion that means the process of exerting forces on any material forcefully against the will or need. Therefore, adhesion,attrition and abrasion are the process of tool wear .So the correct option is (d)

5 0
3 years ago
On a CNC lathe, which of the following axes specifies the distance of the cutting tool from the workpiece centerline?
kvasek [131]

Answer:

The axis of motion that is parallel to the spindle axis is always the Z-axis.

Explanation:

Z-Axis Which axis is which depends on the orientation of the spindle.

If the spindle is vertical (Figure 2.1), the Z-axis is vertical. Either the quill or the knee of a vertical spindle mill will move when a Z-axis command is executed.

This is the best answer I could give you, maybe you could show us a pic of the question so we see all the possible choices?

8 0
3 years ago
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