Required informationA 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 rodgenerates heat uniformly at a rate of 100 MW/m³, and the average temperature of the cooling water is 80°C with aconveçtion heat transfer coefficient of 2500 W/m K. The operating pressure of the cooling water is such that the surfacetemperature 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 andlead to damage.T(r.)é sen =100 MW/m³3.Cooling waterFuel rodD=D2 cm2500 W/m2-KDetermine 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.)< Prevof 6 ENext >5 618°C Clearへロ註ENN

Given:Surface temperature of rod, Ts=200o CTs=200o C or 473 KEgen˙=100 MW/m3d= 2 cmr=1 cm or 0.01…

Answered: Required information A cylindrical fuel…

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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A rod consisting of two cylindrical portions AB and BC is restrained at both ends. Portion AB is made of steel (Es =29x106 psi, αSαS=6.5x10-6/F) and portion BC is made of aluminum (Ea =10.4x106 psi, αaαa=13.33x10-6/F). Knowing that the rod is initially unstressed, determine the normal stresses induced in portions AB by a temperature rise of 160F. Answer in ksi.
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
The 5-mm-thick bottom of a 200-mm-diameter pan may be made from aluminum (k = 240 W/m.K) or copper (k = 390 W/m-K). When used to boil water, the surface of the bottom exposed to the water is nominally at 110°C and heat is transferred from the stove to the pan at a rate of 1200 W. What is the temperature of the surface in contact with the stove for each of the two materials? Aluminum: T = i °℃ Copper: T = °℃ i
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?
Consider a stainless steel spoon ( k = 8.7 Btu/hrft°F) partially immersed in boiling water at 200 deg * F in a kitchen at 75°F. The handle of the spoon has a cross section of 0.08in * 0.5in and extends 7 inches into the air from the free surface of the water. If the heat transfer coefficient at the exposed surfaces of the spoon handle is 3 Btu/hrft²°F, determine the temperature of the tip of the spoon handle. Assume that the heat loss from the tip of the spoon is negligible.
In a dairy operation, milk at a flow rate of 0.25m3/hr and a cow-body temperature of 38.6°C must be chilled to a safe-to- store temperature of 13°C. Cold water at 2.2°C is available at a flow rate of 0.94m3/hr. The density and specific heat of milk are 1030 kg/m3 and 3860 J/kg.K, respectively. The density and specific heat of water is 1000 kg/m3 and 4187 J/kg.K. The chilling process is done by a double pipe counter-flow exchanger with an overall heat transfer coefficient U=1000 W/m2.K. The pipe of the heat exchanger has a 50-mm diameter with negligible thickness. Determine the pipe length L required. Select one: O a. 2.28 m O b. 4.28 m O c. 3.28 m O d. 1.28 m
The wall of an oven in an industrial plant, made of fire brick (k = 0.71 W/m/K) has thickness of L = 15 cm. The oven is exposed to air at 28oC and the surfaces of the far surroundings are at 20oC. If the temperature of the outer surface of the wall is 92oC and the heat transfer coefficient and emissivity are 20 W/(m^2*K) and 0.8 respectively, determine the temperature of the inner surface of the wall.
The upper surface of a 50-cm-thick solid brass plate (k=109 W/mK) is being cooled by water with temperature of 10°C. The upper and lower surfaces of the solid plate maintained at constant temperatures of 60°C and 190°C, respectively. Determine the water convection heat transfer coefficient and the water temperature gradient at the upper plate surface. Water Ts.l · Ts.,2
None
Citrus fruits are very susceptible to cold weather, and extended exposure to subfreezing temperatures can destroy them. Consider an 8-cm-diameter orange that is initially at 15°C. A cold front moves in one night, and the ambient temperature suddenly drops to –6°C, with a heat transfer coefficient of 15 W/m2·K. Using the properties of water for the orange and assuming the ambient conditions to remain constant for 20400 seconds before the cold front moves out, determine the surface temperature of orange that night. Solve this problem using analytical one-term approximation method. The properties of the orange are approximated by those of water at the average temperature of about 5°C, k = 0.571 W/m·°C and α = 0.136 × 10–6 m2/s. The surface temperature of orange that night is
The 10-mm-thick bottom of a 200-mm-diameter pan may be made from aluminum (k = 240 W/m-K) or copper (k = 390 W/m-K). When used to boil water, the surface of the bottom exposed to the water is nominally at 110°C and heat is transferred from the stove to the pan at a rate of 1200 W. What is the temperature of the surface in contact with the stove for each of the two materials? Aluminum: T = i °C Copper: T = °C Physical Properties Mathematical Functions
a wire is submerged in a liquid at 110 degrees Celsius where the convective heat transfer coefficient is 4000 W/m^2K Determine the temperature at the center of the wire in degrees celsius

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