Thermal Conductivity of Skin" Design experiments and calculate heat transfer coefficients/thermal conductivity (k)
Q: Calculate the magnitude of the resultant force, FRin kN, to the nearest 10th. Fluid: Orange Purity S...
A: Calculated resultant force in (kN).
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Q: Water in a piston/cylinder arrangement is at 150 psia and 900 °F, as shown in Fig. C. There are two ...
A: Given data, State 1:- When the piston is in upper stops Pressure at state 1, P1 = 150 psia Temperatu...
Q: Q3: Explane in which case Fahas a maximum Value & minimum Value in Pulling the car shown in Fig
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Q: For a given Rankine Cycle, the ideal pump work involves an isentropic compression process. O True O ...
A: The given statement is true.
Q: Problem 2: Fluid pumping process. PS1 Tank Tank B. dund The process involves pumping fluid from tank...
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Q: 3. A carnot engine operating between 775 K and 305 K produces 54 kJ of work. Determine a) heat absor...
A: Given data, Th= 775 K Tl= 305 K W= 54 kJ
Q: The curved surface given in the figure is defined by y = 3 x−−√x . Determine the horizontal force an...
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Q: QUESTION 2 Two structural members B and C are bolted to bracket A. Knowing that both members are in ...
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Q: The figure shows a rigid bar that is supported by a pin at A and two rods, one made of steel and the...
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Q: The structure shown supports a distributed load of 700 Ib/ft. Assume a - 4.1 ft b-1.0 ft. c-2.1 ft, ...
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Q: Q3: Explane in which case Fahas a maximum Value & minimum Value in Pulling the car shown in Fig
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Q: 8. Determine the power rating of a no. 60 chaln, single- strand, operating on a 20-tooth sprocket at...
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Q: The pump takes water from an open tank below the pump centerline. Determine the maximum static eleva...
A: Write the given data. H=1500 ftPsat=0.69 psiav=0.01608 ft3/lb
Q: Two distributed loads act on the beam AB. If the resultant of this loads is a 2400 N-m counterclockw...
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Q: 1. The gage pressure of the air in the tank shown in the figure below is measured to be 65 kPa. Dete...
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Q: finite element equations for a torsion element
A: Need to Derive the finite element equations for a torsion element
Q: A machine member is subjected to fluctuating stress O =0, cos(8 t). The endurance limit of the mater...
A: GIVEN DATA - σ=σo cos(8πt) σe=350MPa FACTOR OF SAFETY N=3.5 WE HAVE TO FIND VALYE OF ALLOWABLE STRES...
Q: A rubber bolt is inflated to apressure of 65kPa. At that pressure, tediameter of the ball is 240mm a...
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Q: A standard vapor-compression refrigeration system produces 20 tons of refrigeration using R 12 as a ...
A: Given data:- Evaporator temperature = -25°C Condenser temperature = 40°C Refrigeration = 20 tone
Q: A centrifugal pump has NPSH required of 20 ft. The water temperature is 90 deg. F and the friction l...
A: Write the given data. NPSH=20 fthf=1.6 fthsat=0.69 psia
Q: Q2:Replace the Force 70N by Equivalent System consist of one force &couple at 1: At Supporting point...
A: Given,
Q: A pulley of radius 20 cm starts from rest -1 in 5s. and reaches a speed of 30 rad.S How many revolut...
A: Find the revolutions in 5 seconds Given data:- Angular speed = 30 rad/sec Radius = 20 cm
Q: The tofal sleeve movement in a Hartnell governor is 3 cm. The mass of rotating balls is Y.5 kg each....
A: Given data: h=3 cmb=6.5 cma=7.5 cmr=10.5 cmm=1.5 kgN1=415 rpmN2=430 rpm Need to determine the stiffn...
Q: 1. Search and find two-to-three-page information about “Isomerization Plant” in the refinery ,includ...
A: omerization leads to production of a compound with another atomic (group) arrangement but compositio...
Q: Using the method of section, or otherwise, determine the forces in the members GF and HF for the tru...
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Q: 4m seawater (SG=D1.031) A 60°
A: Find the hydrostatic force on the gate
Q: A Cold Store maintains a storage temperature minus 23°c in an ambient of 27°c. he pleent is fittes w...
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Q: Q1: Determine the Moment of Force F (100N) shown in fig. down about point (A) by 2 ways at least? 12...
A: Turning effect created by force is called moment. Moment = Force X perpendicular distance
Q: Q3: / An air nozzle has an exit area 2 times the throat area. If a normal shock occurs at a plane wh...
A: It will be assumed that the supply tank is large enough to be able to assume that the tank pressure ...
Q: Identify shortly the parts of the stress-strain. Briefly explain each part.
A: Stress is define as the ratio of restoring force and the cross section area. It's formula is σ=P/A ...
Q: Consider a 210-MW steam power plant that operates on a simple ideal Rankine cycle. Steam enters the ...
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Q: Write a step-by-step detailed material preparation, set-up and testing procedure of Tensile Testing ...
A: Please find the solution below
Q: shown below. Sa
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Q: An air-standard Compression Ignition cycle has a compression ratio of 18.2. Air is at 3200°R at the ...
A: r= V1/V2 = 18.2 Assuming T1= atmospheric temperature =98=298 K T3= 1777.77 K For process 1-2 (T2/T1)...
Q: Debbie competes in a 1500 m race and finishes 5th in a time of 4 minutes 35 seconds. Estimate the re...
A: Distance covered d=1500 m Time to complete the race t=4 min 35 secondt=4×60+35 secondt=275 second ...
Q: Draw the shear diagram for the beam and the moment diagram.
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Q: Thelightingrequirementsofanindustrialfacilityarebeingmetby70040-Wstandard fluorescent lamps. The lam...
A: Calculate the wastage reduction. W=Wastage reduction per lamp×Number of lampsW=40-34×700W=4200 W, ...
Q: In a rolling operation using rolls of diameter 400mm if a 35mm thick plate cannot be reduced to less...
A: Given data, D= 400 mm t1=35 mm t2=20 mm Need to find μ (coefficient of friction)
Q: You are tasked to supervise the design of 0.5MW wind turbine to be constructed in the Wind Farm in P...
A: according to the given data
Q: A h
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Q: In a single pass rolling process using 412mm diameter steel rollers, strip of width 120mm and thickn...
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Q: demonstrate 10) Torricelli's equation, in the form parameterized by the trajectory (make an illustr...
A: given; 10) Torricelli's equation, in the form parameterized by the trajectory (make an illustration)...
Q: The steel beam has the cross section shown. The beam length is L = 17 ft, and the cross-sectional di...
A: Given Data: The magnitude of the load, w=4.7 kip/ft Length of the beam, L=17 ft
Q: A pump 254mm suction pipe and a 127mm discharge pipe is used to deliver 52L/s of water. The suction ...
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Q: 3. A 30-mm-diameter copper rod is 1 m long with a yield strength of 70 MPa. Determine the axial forc...
A: As per given question We have to explain elastic deformation. Check that the elastic deformation ass...
Q: Determine the Moment of Force F (10ON) shown in fig. down about point (A) by 2 ways at least? 12m
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Q: A load P is supported by two concentric steel springs arranged as shown. The inner spring consists o...
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Q: avity of certain oil is 0.82. Calculate its (a) specific weight, in
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- What is thermal conductivity?Differentiate between thermal conductivity and thermal conductance of a materialA wall consists of a layer of wood and a layer of cork insulation of the same thickness. The temperature inside is 34.0°C, and the temperature outside is 0.0°C. The thermal conductivity of wood is 0.130 W/(m·K) and the thermal conductivity of cork is 0.0460 W/(m·K). A) What is the temperature at the interface between the wood and the cork if the cork is on the inside and the wood on the outside? in C B) What is the temperature at the interface if the wood is on the inside and the cork is on the outside? in C C) It doesn’t matter whether the cork is placed on the inside or the outside of the wooden wall because the temperature at the interface differs for the two cases.the temperature at the interface differs for the two cases. the temperature at the interface is the same for the two cases.the temperature at the interface is the same for the two cases. the total thermal resistance is the same for the two cases.the total thermal resistance is the same for the two cases.…
- What is thermal conductivity as a material property?Estimate the R-values for a 5-cm-thick fiberglass board and a 2.5-cm-thick polyurethane foam layer. Then, compare their respective conductivity-times-density products if the density for fiberglass is 50kg/m3 and the density of polyurethane is 30kg/m3. Use the units given in Figure 1.31.Define the thermal conductivities of some materials at room conditions
- Question 1 An industrial cold room has four 200 mm thick walls made of concrete. The walls are insulated on the outside with a layer of foam 60 mm thick. Cladding with a thickness of 15 mm protects the foam on the outside from the elements. The composite wall surface temperatures are -3 °C on the inside and 18 °C on the outside of the room respectively. The thermal conductivities of concrete, foam and cladding are 0.75, 0.35 and 0.5 W/m K respectively. a) Assuming perfect thermal contact between the layers of the composite walls, draw the typical temperature distribution across the layers and determine the heat energy gained per hour through all 4 walls of the room with a total surface area of 20 m². What does this heat energy represent in terms of the refrigeration system of the cold room?Question 1 An industrial cold room has four 200 mm thick walls made of concrete. The walls are insulated on the outside with a layer of foam 60 mm thick. Cladding with a thickness of 15 mm protects the foam on the outside from the elements. The composite wall surface temperatures are -3 °C on the inside and 18 °C on the outside of the room respectively. The thermal conductivities of concrete, foam and cladding are 0.75, 0.35 and 0.5 W/m K respectively. a) Assuming perfect thermal contact between the layers of the composite walls, draw the typical temperature distribution across the layers and determine the heat energy gained per hour through all 4 walls of the room with a total surface area of 20 m². What does this heat energy represent in terms of the refrigeration system of the cold room? b) c) Without any calculations, how would you expect the internal and external air temperatures to be relative to the wall surface temperatures? Explain your answer. How do you expect the heat gain…Question 1 The exterior wall of a building consists of 100 mm thick face brick (k = 0.9 W/m-K), 40 mm thick polystyrene insulating board (k = 0.036 W/m-K), 125 mm thick concrete block (k = 1.8 W/m-K) and 15 %3D mm thick interior gypsum board (k = 0.18 W/m-K). The inside and outside convective heat transfer coefficients are 6.5 W/m2-K and 22.5 W/m2-K, respectively. The outside air temperature is -5°C and the inside air temperature is 20°C. The wall is 3 m high and 15 m long. Calculate the rate of heat loss (in W) through the wall. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 1, calculate the temperature (in °C) of the interior surface of the wall. Round your answer to 2 decimal places. Add your answer Follow-up question to Question 1, calculate the temperature (in °C) of the exterior surface of the wall. Round your answer to 2 decimal places. Add your answer
- Bebang owns a 830-mm-thick concrete brick table top that has an area of 10,000,000 mm^2 and a 0.750-cm-thick glass plate that has an area of 20,000 cm^2. Assuming the same temperature difference across each, what is the ratio of the rate of heat conduction through the plate with respect to the rate of heat conduction through the table top? Use Table 10.1(given below) for the value of Thermal Conductivity k. Table 10.1 Thermat Conductivities of Common Substances Values are given for temperatures near o °C. Substance Thermal Conductivity k (W/m-O Diamond 2000 Silver 420 Copper 390 Gold 318 Aluminum 220 Steel iron Steel (stainless) 14 Ice 2.2 Glass (average) 0.84 Concrete brick O.84 water 0.6 Fatty tissue (without blood) 0.2 Asbestos 0.16 Plasterboard 0.16 wood 0.08-0.16 Snow (dry) 0.10 Cork 0.042 Glass wool 0.042 wool 0.04 Down feathers 0.025 Air 0.023 Polystyrene foam 0.010In thermal conduction in ceramics and metals, which of the following statements are true? Select one or more: a. Phonons can have arbitrarily high and low energy b. A component of thermal energy is transmitted via phonons c. Phonons are a form of vibrational energy d. Phonons are amplified and strengthened by interaction with lattice defects e. Phonons are scattered and heat transfer reduced with interaction with lattice defects.%^0 |. دردشة هندسة النفط/مسائي A composite wall consisting of five series layers of materials with different properties. Layer thickness, thermal conductivity of the layers and temperatures are shown on the figure. Based on Fourier's law for conduction, answer the following questions. 1. What are the main assumptions? 2. Drive an equation to calculate the heat transfer rate through the Composite wall? 3. Draw the themal circuit through composite wall? 4. What are the value Ti? 5. What are the value Tj? 6. What are the value Tr? Givens: KA = 2 W/m. °C K= 1 W/m.°C K= 5 W/m. °C Kp= 4 W/m, °C 100°C Ti 25°C Tj Tr A B D -2cm e 6 cm 4 cm 4cm إضافة وصف...