TFL%24ETradiG 0.169 iGen selec +Launc- SIS S25 (25) VTeleg3 Dropdo,-bf M Inbcheducation.com/ext/map/index.html?_con%3Dcon&lexternal_browser%3D0&launchUrl=https%253A%252F%252Fnewconnect.mheducation.com%252F#/activity/cHelpSave &SavedRequired informationA cylindriçal fuel rod (k 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rodgenerates heat uniformly at a rate of 100 MW/m, and the average temperature of the cooling water is 80°C with aconvection heat transfer coefficient of 2500 W/m4-K. The operating pressure of the cooling water is such that the surfacetemperature pf the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF).The crițical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface andlead to damage.ė ren = 100 MW/m3%3DCooling waterFuel rodD=2 cm2500 W/m2-KDetermine the temperature of the fuel rod surface.(You must provide an answer before moving to the next part.)The temperature of the fuei rod surface =%3D< PrevNext>ME6.9 jo17°C ClearENG12f3f4f59)*6)%2334.5.9.8.9.R.

Answered: Image /qna-images/answer/16b8b4c3-eba0-437d-a8b9-5405edbc0780.jpg

Answered: A cylindriçal fuel rod (k= 30 W/m K) of…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Similar questions

Consider a 0.8-m-high and 1.5-m-wide glass window with a thickness of 8 mm and a thermal conductivity of 0.78 W/m-K. Determine the steady rate of heat transfer through this glass window and the temperature of its inner surface for a day during which the room is maintained at 29°C while the temperature of the outdoors is -12°C. Take the heat transfer coefficients on the inner surface of the window to be hj = 15 W/m2-K and outer surfaces of the window to be h, = 40 W/m2-K, which includes the effects of radiation. Answer shows Qtotal and Temperature at inner surface of window. 412W, 0.1°C a. 483W, 2.2°C 424W, 0.5°C C. 436W, 0.8°C 459W, 1.5°C е.
A 12cm outside diameter and 10cm inside diameter cast iron pipe with conductivity of 80W/m-K has 4 cm of polystyrene insulation with conductivity of 0.027W/m-K. Saturated steam at 500degC is flowing through pipe and the outside surface temperature is 60degC. Determine the temperature of the outside surface of the pipe.
Steel rods (p = 7832 kg/m2, cn= 434 J/kg.K, and k = 63.9 W/m-K) are heated in a furnace to 850°C and then quenched in a water bath at 50°C for a period of 55 seconds as part of a hardening process. The convection heat transfer coefficient is 650 W/m2.K. If the steel rods have diameter of 40 mm and length of 2 m, determine their average temperature when they are taken out of the water bath. (Round off the answer to 1 decimal point.) °C
A 65 kg beef carcass (k-0.47 w/mk and a-0.13 x10-6 m/s) initially at a uniform temperature of 37 "C is to be cooled by refrigerated air at -10 oC flowing at a velocity of 1.2 ms. The average heat transfer coefficient between the carcass and the air is 22 W/m²K. Treating the carcass as a cylinder of diameter 24 cm and the height 1.4 m and disregarding heat transfer from the base and top surfaces, Determine how long it will take for the centre temperature of the carcass to drop to 4 °C b. Also, determine if any part of the carcass will freeze during this process Hava- air -10 °C 12m/s Sider E Beef JTC
water 4-26 Steel rods (p = 7832 kg/m³, c, = 434 J/kg-K, and k = 63.9 W/m-K) are heated in a furnace to 850°C and then quenched in a bath at 50°C for a period of 40 s as part of a hardening process. The convection heat transfer coefficient is 650 W/m²K. If the steel rods have diameter of 40 mm and length of 2 m, determine their average temperature when they are taken out of the water bath.
A long 35 cm diameter cylinder made of stainless steel 304 (k = 14.9 W/mo C, r = 7900 kg/m3 , Cp = 477 J/kgo C and a = 3.95´10-6 m2 /s) comes out of an oven at a uniform temperature of 400o C. The cylinder is then allowed to cool slowly in a chamber at 150o C with average convection heat transfer coefficient of h = 60 W/m2oC. Determine the temperature at the center of the cylinder 20 min after the start of the cooling process. Also, determine the heat transfer per unit length of the cylinder during this time period.
In a meat processing plant, 20 gram spherical meat balls (k=0.45 W/m-K,ρ=1050 kg/m³ and α=0.91×10-7 m²/s) that are initially at 20 °C are to be cooledby passing them through a refrigeration room at 0 °C. The heat transfercoefficient in the cold room is 5 W/m²-K. If surface of the meat balls is to becooled to 2 °C, determine how long the meat balls should be kept in therefrigeration room. What will be the center temperature of the meat balls at theend of the process?
Required information A cylindrical fuel rod (k = 30 W/m K) of 2 cm in diameter is encased in a concentric tube and cooled by water. The fuel rod generates heat uniformly at a rate of 100 MW/m³, and the average temperature of the cooling water is 80°C with a conveçtion heat transfer coefficient of 2500 W/m K. The operating pressure of the cooling water is such that the surface temperature of the fuel rod must be kept below 200°C to avoid the cooling water from reaching the critical heat flux (CHF). The critical heat flux is a thermal limit at which a boiling crisis can occur that cause overheating on the fuel rod surface and lead to damage. T(r.) é sen = 100 MW/m³ 3. Cooling water Fuel rod D=D2 cm 2500 W/m2-K Determine the temperature at the centerline of the rod. (Round your answer to the nearest whole number) (You must provide an answer before moving to the next part.) 5 6 18°C Clear へロ註EN N
A 1200 W electric resistance heating element whose diameter is 0.5 cm is immersed in 55 kg of water "ep 4.18 kJ/kg.K" initially at 20 C. Assuming the water container is well-insulated. What is the gutropy generated during this process, " kJ/K" when the surroundings are at T-15 C?
6-21 A metal plate is being cooled by air (kuid = 0.259 W/m-K) at the upper surface while the lower surface is subjected to a uniform heat flux of 1000 W/m2. Determine the temperature gradient in the air at the upper surface of the metal plate. FIGURE P6-21 Air,h, Tog T Metal plate 1000 W/m2
None
A 6-m-long 2-kW electrical resistance wire is made of 0.2-cm-diameter stainless steel(? = 15.1 W/mK). The resistance wire operates in an environment at 30°C with a heattransfer coefficient of 140 W/m2K at the outer surface. Determine the maximumtemperature in the wire;(a) by using the applicable relations.(b) by setting up the proper differential equation and solving it.

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