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A composite one-dimensional plane wall is of overall thickness
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Introduction to Heat Transfer
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- Q2. A thermo gate consist of an aluminum plate AB and a magnesium plate CD, each having a width of 15. X mm and fixed supported at their ends as shown in Figure Q2. If the gap between them is 1.5 mm when temperature is T= 25.Y°C, (a) Determine the temperature, T,required to just close the gap. X- The last digit of your matrix number Y- The fifth digit of your matrix number For example, a student with the matrix number CD150150 will have a width of 15.9 mm and T, = 25.7°C (8 marks) (b) Determine the axial force in each plate when the temperature T,becomes 100°C. (7 marks) Assume bending or buckling will not occur. Given E= 68.9 GPa, E, :44.7 GPa, am Oa = 24(10-6)/°C, = 26(10-)/°Carrow_forwardPlease what is the correct optionarrow_forwardA metal rod of length L=8.88 has only three forces applied to it in the directions shown in the diagram below. Force #2 is applied at the midpoint of the rod. If the rod is in static equilibrium and the magnitude of force #1 is 7.15, what is the magnitude of force #2?arrow_forward
- THE PROBLEM IS FROM THE BOOK: ENGINEERING THERMOFLUIDS, M. MASSOUD.arrow_forwardPage < 7 Given: An electrical device is insulated on all sides. except for one face. The face is bonded to a 4 mm-thick aluminum plate, which is cooled by air. heat sink → Cross-Sectional area = Im → Electrical device dissipates heat at 104 W/m². → The resistance of the joint between the device and the aluminum plate is 05x10²4 mok/w. → The thermal conductivity of aluminum ts 238 Works. → Too of air 3 278 k and the convective heat transfer coefficient between aluminum and 100 W/m.k. air What is the temperature at the device surface? 0" = 10² W/m²* A=1m² Ts=? Q Search L= 4mm = aoot m k=238 W/mK q=0 Too = 278 k h = 100 W/m² Thermal Contact resistance R = 0.5x10 m² K/W. 99+arrow_forwardPLS ANSWER ASAP, THANK YOUarrow_forward
- 1.A composite component is comprised of a tube and a concentric rod running inside it, both with a length of 1.5 meters. The tube is made of copper and has inner and outer diameters of 60 mm and 100 mm, respectively, a coefficient of thermal expansion and elastic modulus of 17 ×10−6? and 117 GPa, respectively. The rod is made of aluminium with a diameter, coefficient of thermal expansion and elastic modulus of 50 mm, 23 ×10−6? and 80 GPa, respectively. If the composite is exposed to a temperature rise of 120°C, determine:1.1 The sense and magnitude of the stresses induced in the composite if it is not restrained. 1.2 The sense and magnitude of the stresses induced in the composite if it is partially restrainedwith an allowed free expansion of 0.3 mm.arrow_forwardIn mechanical fluidarrow_forwardaugnol tofubbA 80 0.005W/mm S02 Figure 2) OF Figure 1) The femur bone is maintained and inclined 80 degrees with regard to the femur's resting position in the equilibrium state of an adducted femur, as shown in Figure 1. The pin and fixed joints, accordingly, are represented by Points A and B in Figure 2. Q001 W/mm 1-) Considering W on the loads distributed is equal to 637.65N, draw the Free body diagram of figure 2 and calculate the reaction forces at point A as well as point B. Construct the implant's shear and bending moment diagram by hand. Clearly demonstrate your work.arrow_forward
- the ability of fluid to resist shear stresses is known as bulk modulus Select one: O True O Falsearrow_forward2. A rectangular block has thickness B in the x-direction. The side at x = 0 is held at temperature T, while the side at x = B is held at T2. The other four sides are well insulated. Heat is generated in the block at a uniform rate per unit volume of [. (a) Use the conduction equation to derive an expression for the steady-state temperature profile, T(x). Assume constant thermal conductivity. (b) Use the result of part (a) to calculate the maximum temperature in the block for the following values of the parameters: T₁-120 °C k-0.2 W/(m K) B-1.0 m T₂-0 F-100 W/m³arrow_forwardA copper [E = 96 GPa, a = 17.5x10-6/°C] rod (2) is placed within a steel [E = 192 GPa, a = 11.5×10- 6/°C] tube (1) of the same length. The two components are connected at each end by pins that pass through both the tube and the rod. The outside diameter of the steel tube is D₁ = 92 mm, its inside diameter is d₁ = 77 mm, and its cross- sectional area is A₁ = 1991 mm². The diameter of the solid copper rod is d₂ = 55 mm, and its cross- sectional area is A2 = 2376 mm². Calculate the normal stress in the copper rod if the temperature of the entire assembly is raised by 48°C. Pin Steel Tube (1) Pin Copper Rod (2)arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning
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