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LenKa [72]
3 years ago
15

a vehicle is in her repair with a complaint at for heating output during testing and diagnosing air is found to be trapped in th

e heating core which of the following is the most likely cause
Engineering
1 answer:
Mazyrski [523]3 years ago
6 0

Answer:

Air in the cooling system

Explanation:

Air would need to be bled out of the system for most efficient operation.

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An experiment to determine the convection coefficient associated with airflow over the surface of a thick stainless steel castin
Maksim231197 [3]

Answer:

h = 375 KW/m^2K

Explanation:

Given:

Thermo-couple distances: L_1 = 10 mm , L_2 = 20 mm

steel thermal conductivity k = 15 W / mK

Thermo-couple temperature measurements: T_1 = 50 C , T_2 = 40 C

Air Temp T_∞ = 100 C

Assuming there are no other energy sources, energy balance equation is:

                                               E_in = E_out

                                        q"_cond = q"_conv

Since, its a case 1-D steady state conduction, the total heat transfer rate can be found from Fourier's Law for surfaces 1 and 2

q"_cond = k * (T_1 - T_2) / (L_2 - L_1) = 15 * (50 - 40) / (0.02 - 0.01)

=15KW/m^2

Assuming SS is solid, temperature at the surface exposed to air will be 60 C since its gradient is linear in the case of conduction, and there are two temperatures given in the problem. Convection coefficient can be found from Newton's Law of cooling:

q"_conv = h * ( T_∞  - T_s ) ----> h = q"_conv / ( T_∞  - T_s )

                                                   h = 15000 W / (100 - 60 ) C = 375 KW/m^2K

4 0
3 years ago
What effect does air have on the acceleration of aircraft during flight?
scoundrel [369]
The effect would be the altitude of the air, the higher you go up the closer you are to space we’re there’s no oxygen and everything moves slow so when your trying to fly across the world it could feel like your moving slower
5 0
3 years ago
How do you check battery state of charge with a voltmeter
cupoosta [38]

Answer:

Depends on the battery and the current type.

Is it AC or DC?

Explanation:

Could you mark as brainiest.

I need it for my account

Thank you! :)

8 0
2 years ago
Water from the Earth's surface turns into a gas, or water vapor, when it is warmed and
bagirrra123 [75]

Answer:

Evaporation.

Explanation:

Evaporation is the stage of the Water Cycle where water turns into water vapor. The steps following Evaporation in order include Condensation, Precipitation, and Transpiration.

4 0
3 years ago
Read 2 more answers
How does a rudder help maneuver an airplane?
Nonamiya [84]
It’s just helps it like
4 0
3 years ago
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