THIN-WALLED VESSEL •Step by step solution of 2 sample problems each for cylindrical and spherical vessel
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Q: Q2- Find the current /, and the voltage V, for the network in Figure shown below. 12V
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Q: Q3/ A 10-cm length of platinum wire 0.5 mm in diameter is placed horizontally in a container of air…
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A: Relative motion analysis is one method used to analyze bodies undergoing general planar motion.…
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Q: 2015.2 2.4713 27 0.031 2182.4 3.4800 29.33 0.044 2416.9 4.9900 32.48 0.063 2693.1 7.5062 36.19 0.095…
A: Given Data To find “Since you have posted a question with multiple sub-parts, we will solve the…
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Q: 33 A device used to measure the heat transferred in chemical reactions and physical changes is…
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Q: A thermocouple used to measure the temperature of hot air flowing in a duct whose walls are…
A: Given data: Tw=500 KTth=850 Kε=0.6h=60 W/m.°C Need to determine the actual temperature of air.
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A: The volumetric flowrate of water is 2.587 LPM (litre/min).
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Q: 40 &N Fig.4
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Q: Q1/ Find the Coefficient of Performance of refrigerator with R-134a as the working fluid has a…
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Q: 2. The analysis of a fuel indicates 86% carbon, 12% hydrogen and 2% oxygen by mass. a. Determine the…
A: Given:- Fuel contains 86% carbon,12% hydrogen, 2% oxygen, For complete combustion of 1 kg of fuel…
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Q: 3/8". The weld is acte de is E8020. Determine an algebra critical point.
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Q: 7. A composite wall consists of three materials, as shown in Figure 2. The inside wall temperature…
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Q: A simple ideal Rankine cycle with water as-the working fluid operates between the pressure limits…
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Q: 1- Find the volume of the solid generated be revolving the shaded region about the given axis.…
A: Consider the first figure, The figure is a triangle and is rotated about the x-axis from x=0 to…
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Q: A simple ideal Rankine cycle with water as the working fuid operates between the pressure limits of…
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Q: Water flowing through a pipe of constant cross section, 11 cm in diameter, as shown in Fig. shown in…
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Q: (b) A cylindrical rod made from an unknown metal is 350mm long and has a diameter of 10mm. The rod…
A: Soln :- it has given - Length of the rod (l) = 350 Diameter (d) = 10 mm ==> cross section area A=…
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Q: orizontal flexible cable as s e which is hinged at the bot ne the tension in the cable.
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- 1.4 To measure thermal conductivity, two similar 1-cm-thick specimens are placed in the apparatus shown in the accompanying sketch. Electric current is supplied to the guard heater, and a wattmeter shows that the power dissipation is 10 W. Thermocouples attached to the warmer and to the cooler surfaces show temperatures of 322 and 300 K, respectively. Calculate the thermal conductivity of the material at the mean temperature in W/m K. Problem 1.41.63 Liquid oxygen (LOX) for the space shuttle is stored at 90 K prior to launch in a spherical container 4 m in diameter. To reduce the loss of oxygen, the sphere is insulated with superinsulation developed at the U.S. National Institute of Standards and Technology's Cryogenic Division; the superinsulation has an effective thermal conductivity of 0.00012 W/m K. If the outside temperature is on the average and the LOX has a heat of vaporization of 213 J/g, calculate the thickness of insulation required to keep the LOX evaporation rate below 200 g/h.A square silicon chip 7mm7mm in size and 0.5-mm thick is mounted on a plastic substrate as shown in the sketch below. The top surface of the chip is cooled by a synthetic liquid flowing over it. Electronic circuits on the bottom of the chip generate heat at a rate of 5 W that must be transferred through the chip. Estimate the steady-state temperature difference between the front and back surfaces of the chip. The thermal conductivity of silicon is 150 W/m K. Problem 1.6
- 1.3 A furnace wall is to be constructed of brick having standard dimensions of Two kinds of material are available. One has a maximum usable temperature of 1040°C and a thermal conductivity of 1.7 W/(m K), and the other has a maximum temperature limit of 870°C and a thermal conductivity of 0.85 W/(m K). The bricks have the same cost and are laid in any manner, but we wish to design the most economical wall for a furnace with a temperature of 1040°C on the hot side and 200°C on the cold side. If the maximum amount of heat transfer permissible is 950 , determine the most economical arrangement using the available bricks.A section of a composite wall with the dimensions shown below has uniform temperatures of 200C and 50C over the left and right surfaces, respectively. If the thermal conductivities of the wall materials are: kA=70W/mK,kB=60W/mK, kC=40W/mK, and kP=20W/mK, determine the rate of heat transfer through this section of the wall and the temperatures at the interfaces. Repeat Problem 1.34, including a contact resistance of 0.1 K/W at each of the interfaces.One end of a 0.3-m-long steel rod is connected to a wall at 204C. The other end is connected to a wall that is maintained at 93C. Air is blown across the rod so that a heat transfer coefficient of 17W/m2 K is maintained over the entire surface. If the diameter of the rod is 5 cm and the temperature of the air is 38C, what is the net rate of heat loss to the air?
- A hollow sphere with inner and outer radii of R1 and R2, respectively, is covered with a layer of insulation having an outer radius of R3. Derive an expression for the rate of heat transfer through the insulated sphere in terms of the radii, the thermal conductivities, the heat transfer coefficients, and the temperatures of the interior and the surrounding medium of the sphere.Repeat Problem 1.35 but assume that instead of surface temperatures, the given temperatures are those of the air on the left and right sides of the wall and that the convection heat transfer coefficients on the left and right surfaces are 6 and 10W/m2K, respectively.5.10 Experiments have been performed on the temperature distribution in a homogeneous long cylinder (0.1 m diameter, thermal conductivity of 0.2 W/m K) with uniform internal heat generation. By dimensional analysis, determine the relation between the steady-state temperature at the center of the cylinder , the diameter, the thermal conductivity, and the rate of heat generation. Take the temperature at the surface as your datum. What is the equation for the center temperature if the difference between center and surface temperature is when the heat generation is ?
- Presents the diagram of the problem, necessary formulas, clearance and numerical solution: A metal plate 4 mm thick has a temperature difference between its two faces of 32 ◦C. It transmits 200 kcal/h through an area of 5 cm2. Calculate the thermal conductivity of the metal in W/m K.A spherical container having an outer radius r2 and inner radius r1 (with thermal conductivity, k) is filled with radioactive material generating constant heat at a rate of qdot. Fluid flows across the container at Tinfinity and convection coefficient h. Obtain a relation for the variation of temperature through the spherical container assuming steady state.Presents the diagram of the problem, necessary formulas, clearance and numerical solution: Two heat reservoirs with respective temperatures of 325 and 275 K are brought into contact by an iron rod 200 cm long and 24 cm2 in cross section. Calculate the heat flux between the reservoirs when the system reaches its steady state. The thermal conductivity of iron at 25 ◦C is 79.5 W/m K.