Question

In: Mechanical Engineering

Consider the following schematic for an experiemental methodology to measure the convection heat transfer coefficient distrubution...

Consider the following schematic for an experiemental methodology to measure the convection heat transfer coefficient distrubution on an airfoil. The metal sheathing is supplied with a heat generation rate of 20 * 106 W/m3. The thickness of the metal sheathing is t = 30 um, and the sheathing's thermal conductivity is k=25 W/mK. The 30 surface locations where the temperatures are measured are spaced evenly at 2mm apart. The measured temperatures are listed in the table below.

Location Temperature (degrees C)
1 29.77
2 29.67
3 29.71
4 29.83
5 30.06
6 30.47
7 30.98
8 31.67
9 32.66
10 34.18
11 36.29
12 38.78
13 41.29
14 43.51
15 44.68
16 44.84
17 43.29
18 39.89
19 36.51
20 34.36
21 33.13
22 32.64
23 32.63
24 32.77
25 33.16
26 33.52
27 33.85
28 33.51
29 31.91
30 30.42

Accounting for conduction in the metal sheathing, detemine the convection heat transfer coefficients at the 30 numbered locations.

Solutions

Expert Solution


Related Solutions

Match the types of heat transfer to the example. Natural Convection Forced Convection Conduction Radiation A....
Match the types of heat transfer to the example. Natural Convection Forced Convection Conduction Radiation A. You burn your hand touching a hot pot in the kitchen. B. Frost forming during a cold clear night, with an outdoor temperature of 2 degrees Celsius. C. Cold wind blowing on your face. D. Water heating up in a pot on a stove top.
Convection Heat transfer internal flow Consider water flowing in a heated tube. The tube is 14...
Convection Heat transfer internal flow Consider water flowing in a heated tube. The tube is 14 m long with an inner diameter of 1 cm. The heat is added at 1500 W/m2 uniformly along the tube. Water flows at 0.3 m/s. Use the following water property ? = 1000 kg/m3, ? = 1.4 × 10?3 kg/m·s, cp = 4.2 kJ/kg·K, k = 0.58 W/m·K, and determine 1. Heat transfer coefficient at the tube exit. 2. Tube surface temperature at the...
Lowest heat transfer coeffient is for ? A) Boiling B) Free Convection C) Forced Convection D)...
Lowest heat transfer coeffient is for ? A) Boiling B) Free Convection C) Forced Convection D) Condensation And why ? and what is the second lowest
Discuss how turbulence influence the heat transfer process in convection pipe flow
Discuss how turbulence influence the heat transfer process in convection pipe flow
Convection heat transfer takes place owing to changes of density within the Fluid. Discusss convective heat...
Convection heat transfer takes place owing to changes of density within the Fluid. Discusss convective heat transfer in some detail. Your answer should include relavant sketches, equations and practical applications
The existence of convection heat transfer has been long used by traditional fishermen for fishing purposes.
The existence of convection heat transfer has been long used by traditional fishermen for fishing purposes. For example, by utilizing land breeze, the fishermen will go to the sea at night, and conversely, by utilizing sea breeze they will come back during the day. How this natural heat transfer can be used by the fishermen? Next, explain the mechanism of the occurrence of the land breeze and the sea breeze and their relation to the convection heat transfer events in...
Determine the overall heat transfer coefficient (U) in a heat exchanger that uses steam to heat water to the point of vaporization (in vacuum.)
Determine the overall heat transfer coefficient (U) in a heat exchanger that uses steam to heat water to the point of vaporization (in vacuum.) The system is non-insulated, so the heat lost to the surroundings must be taken into consideration. While I know that the heat Q = mCdT and the heat transfer rate q = UAdT(Log-mean), I am struggling to equate the two due to the heat lost to the surroundings. How do I go about determining the overall...
The air inside inside a house is 14 oC and the convective heat transfer coefficient h...
The air inside inside a house is 14 oC and the convective heat transfer coefficient h = 11 W/m2⋅°C. The air outside the house is 49 oC and the convective heat transfer coefficient h = 7 W/m2⋅°C. A window has dimensions (2m x 2.5m x 8mm) and heat conduction of 0.8W/mk. Determine the total heat resistance through the window in oC/W
The heat transfer coefficient of a steel (k = 43 W/m · K) tube (1.9 cm...
The heat transfer coefficient of a steel (k = 43 W/m · K) tube (1.9 cm ID and 2.3 cm OD) in a shell-and-tube heat exchanger is 500 W/m2 · K on the inside and 120 W/m2 · K on the shell side, and it has a deposit with a total fouling factor of 0.000176 m2 · K/W. Calculate a. The overall heat transfer coefficient b. The cleanliness factor, and percent over surface.
Heat transfer In a test in a double tube heat exchanger the following data are obtained...
Heat transfer In a test in a double tube heat exchanger the following data are obtained For hot fluid Flow = 11.6 gal / sec Outlet temperature = 30.1 ° C Inlet temperature = 32 ° C For cold fluid Flow 11gal / min Outlet temperature 25.1 ° C Inlet temperature 24.2 ° C For the fluid consider k = 0.49 w / mK cp = 3729.95 J / kgK Prandtl number = 14.29 Density = 1035.02kg / m3 Get:...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT