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
Komok [63]
3 years ago
6

A hot plate with a temperature of 60 C, 50 triangular profile needle wings of length (54 mm), diameter 10 mm (k = 204W / mK) wil

l be added and cooled. Ambient temperature is 20 C and heat transfer coefficient is 20 Since it is W / m2K; a-) Wing efficiency, b-) Total heat transfer rate (W) from the wings, c-) Calculate the effectiveness of a wing.

Engineering
1 answer:
frez [133]3 years ago
3 0

Complete question is;

A hot plate with a temperature of 60 °C will be cooled by adding 50 triangular profile needle blades (k = 204 W/m.K) with a length of 54 mm and diameter 10 mm. According to the ambient temperature 20 °C and the heat transfer coefficient on the surface 20 W/m².K. Calculate,

a-) Wing efficiency

b-) Total heat transfer rate (W) from the wings,

c-) Calculate the effectiveness of a wing.

Answer:

A) Efficiency = 96.05 %

B) Total heat transfer rate = 166.68 W/m

C) Wing Effectiveness = 10.42

Explanation:

Please find attached explanation for all the answers given.

You might be interested in
Suggest appropriate materials for a cylinder head and give four reason for your choice​
ycow [4]

Answer:

head and give four reason for your choice

7 0
3 years ago
Knowing that v = –8 m/s when t = 0 and v = 8 m/s when t = 2 s, determine the constant k. (Round the final answer to the nearest
docker41 [41]

Answer:

a)We know that acceleration a=dv/dt

So dv/dt=kt^2

dv=kt^2dt

Integrating we get

v(t)=kt^3/3+C

Puttin t=0

-8=C

Putting t=2

8=8k/3-8

k=48/8

k=6

5 0
2 years ago
Air flows from a large reservoir in which the pressure and temperature are 1 MPa and 30°C, respectively, through a convergent–di
SSSSS [86.1K]

Answer:

The solution is attached in the attachment.

3 0
2 years ago
Read 2 more answers
What does the line strung between the batter boards represent?
soldi70 [24.7K]

Batter boards (or battre boards, Sometimes mispronounced as "battle boads") are temporary frames, set beyond the corners of a planned foundation at precise elevations. These batter boards are then used to hold layout lines (construction twine) to indicate the limits (edges and corners) of the foundation.

7 0
2 years ago
Read 2 more answers
True or False: Galvanized steel pipe can withstand moderate freezing.
yaroslaw [1]

Answer:

True

Explanation:

Older galvanized steel pipes, which have a tendency to freeze, are a bit more forgiving and will likely not burst. They can withstand extreme cold and warm temperatures.

5 0
3 years ago
Other questions:
  • Define various optical properties of engineering materials
    11·1 answer
  • What are two factors that determine the thermal energy of a substance
    10·1 answer
  • Please help I need it by today!!!
    10·1 answer
  • An equal-tangent sag vertical curve (with a negative initial and a positive final grade) is designed for 55 mi/h. The PVI is at
    5·1 answer
  • 1. A 260 ft (79.25 m) length of size 4 AWG uncoated copper wire operating at a tem-
    8·1 answer
  • Do you know who Candice is
    8·2 answers
  • PLEASE HELP AND ANSWER MY OTHER QUESTIONS!,
    7·1 answer
  • A manufacturer has been asked to produce 100 customized metal discs with a particular pattern engraved on them. Which production
    10·2 answers
  • What is the fastest motorcycle in the world ?
    7·2 answers
  • Technician A ay that acid rain doe the mot harm when it firt fall on a finih. Technician B ay that hard water potting i uually j
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!