cannot exceed 40 °C, what is the minimum speed that the ambient air should be blown? the neighborhood meets at 25 °C and the emissivity of the ceramic is 0.8. If the bar has an emissivity of 0.2, what is the bar surface temperature?

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Q: The temperature of a bar is reduced by 50°C. If the recorded elongation is -0.5 mm and the…

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Q: Fluid Mechanics Last Fall, researchers using an unmanned submarine discovered a coral reef at the…

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A: Given - A slab of concrete used in highway construction is set in place when the ambient temperature…

Q: A tape 30 m long, 0.6 cm wide and 0.5 mm -1000 m at a temperature of 20°C with 120N tension force,…

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Q: 2. Find the surface tension in a soap bubble of 30 mm diameter when the inside pressure is 1.962 N/m…

A: The given data is: Diameter=30 mm Inside Pressure=1.962 N/m2

Q: The temperature of a bar is reduced by 50°C. If the recorded elongation is -0.5 mm and the…

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Q: A gas is compressed under isothermal condition. The change of pressure is from 800 atm. to 803 atm.…

A: given Isothermal conditionchange in pressure=800 atm to 803 atm

Q: 8. At what temperature is the density of water the maximum? a) 100°C b) 0°C c) 5°C d) 0 K

A: at freezing point, due to cage like structure of hydrogen bonding density is minimum , and when this…

Q: 5. Consider an area source box model for Boise, Idaho. The "box" has a dimension of 9 km x 18 km. In…

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Q: An aeroplane is flying at an height of 15 km where the temperature is – 50°C. The speed of the plane…

A: Given: Height, h = 15 km Temperature, t = -50°C Mach number, M = 2 k = 1.4 R = 287 J/kg°K

Q: If an airplane is flying at an altitude where the actual pressure is 4.72 x 104 N/m2 respectively,…

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Q: Calculate the temperature of 0.39 mole of Xenon gas that occupies 9850 millimeters under a pressure…

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Q: 2. A water jet strikes a moving plate at velocity of 10 m/s as the plate moves at a velocity of 2…

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Q: Consider an airfoil operating at transonic speeds. Discuss the effect of heat as a function of…

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Q: A double-pane glass window consists of two pieces of glass, each having athickness of 8 mm, with a…

A: To determine: Total R-value of window.

Q: If the freezing temperature of water is 0°C, 32°F and the boiling temperature is 100°C, 212°F. At…

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Q: The wall shown in the figure consists of seven layers arranged in series. The thermal resistances of…

A: Thermal resistance is generally the ratio of the temperature difference between the material to the…

Q: 0. A body weighing 120 lb with a flat surface area of 2 ft? slides down a lubricated inclined plane…

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Q: Q.2. Air flows through a constant-area duct is connected to a reservoir at a temperature of 500°C…

A: Given T=500℃ P=500kpa Heat lost=250kj/kg D=0.02m

Q: A gas at 45 degrees Celsius is under pressure of 398.675 kPa. Assume gas constant of 287N-m/kg-K. a.…

A: use formula P=pRT

Q: A cast iron pipe of diameter 600 m and length 400 m caries water from a tank and discharges freely…

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Q: At 100°C of temperature, 3.5 atm vapour pressure of water is equivalent to: 1. 350.0000 kPa 2.…

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Q: An aeroplane is flying at an height of 15 km where the temperature is – 50°C. The speed of the plane…

A: Given: Height of plane, h = 15 km Temperature, t = -50°C Mach number, M = 2 k = 1.4 Gas constant, R…

Q: A brass rod and an aluminum rod are 90.00 cm and 90.06 cm, respectively, at 20°C. At what common…

A: Given: Length of rods  Initial temperature  Coefficient of thermal expansion To find:  Final…

Q: A gas at 45 degrees Celsius is under pressure of 398.675 kPa. Assume gas constant of 287N-m/kg-K. a.…

A:

Q: A clean tube of diameter 2.5 mm is immersed in a liquid with a coefficient of surface tension equal…

A: The diameter of the tube is d=2.5 mm. The coefficient of surface tension is σ=0.40 N/m. The angle is…

Q: The pressure 28 meter below a liquid is 686.06 kPa, determine its mass density (kg/m3).

A: The pressure, P=686.06KPa=686.06·1000 Nm2The depth, h=28m

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A: At what common temperature will the two rods be exactly the same length?

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Q: EXAMPLE 1 A perfect gas has molecular weight of 26 and a value of y = 1.26, ?Calculate the heat…

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Q: 1. If the atmospheric pressure at sea level is 7.5 N/cm2, determine the pressure at a height of…

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Q: Problem 1. A tape of standard length 20 m at 85°F was used to measure a base line. The measured…

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Q: A liquid of volume 18x10 liters undergoes a volume change with the final volume as 10x10 liters when…

A: Bulk modulas, K = (applied pressure)/ ( volumetric strain)  Now,  change in volume = 8*10³ litre =…

Q: A tank having a volume of 0.85 m3 initially contains water at 260 oF and x = 0.7.  Saturated vapor…

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Q: Air at temperature 20 C and pressure 1 atm, flow over a flat plate at 3 m/s. The surface temperature…

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Q: Determine the kinetic energy in joules, of a 2 gram riffle bullet traveling at 1640 ft/s

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Q: A 200 ft. steel pipe is heated (by filling it with steam) from 40 °F to 240 °F. Given a linear…

A: given: length(l)=200ft temperature increases from 40∘F to 240∘F α=6.5×10-6 per degree Fahrenheit

Q: Problem 5. A steel tape is 100m long at 60°C with a pull of 10 kgs. A line was measured and found to…

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Q: A line was measured with a 50-m tape which was found to be 532.28 m. the tape is known to be of…

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Q: Steel crane rails of the MRT are laid with their adjacent ends 3.20 mm (change the unit in 3.2 m in…

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Q: 1. Find the mass density of air at 310 kPa absolute and at temperature of 33°C.

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Oil flows thru a 50 mm diameter pipe having a head loss of 12 m. The length of the pipe is 120 m.…

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Q: A steel bridge span is normally 300m long. What is the difference in length, in cm between January…

A: Given,length of bridge span l=300mtemperature in january = -35°Caugust =40°Cdifference in…

Q: -A rod 3 m long is heated from (10 to 90) °C, if the modulus of elasticity equal to 100000 MN/m2,…

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Q: A parallel-plate air-filled capactor has a capacitance of 50 pF and each of its plates has an area…

A: Capacitor- two parallel plate separated by some distance is known as Capacitor.

Q: If the freezing temperature of water is 0 degrees Celsius, 32 degrees Fahrenheit and the boiling…

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Finite Elements for Heat Transfer Problems

Finite element analysis (FEA) is a simulating process of the manner and assembly of an object under obtained conditions. It is used for assessing the finite element method (FEM) which includes one or more solution algorithms. General problem areas of interest are structures, heat transfer, the flow of fluid, transport, and some boundary value problems.