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A horizontal 100-mm-diameter pipe passing hot oil is to be used in the design of an industrial water heater. Based on a typical water draw rate, the velocity over the pipe is 0.5 m/s. The hot oil maintains the outer surface temperature at 85°C and the water temperature is 37°C.
Investigate the effect of flow direction on the heat rate (W/m) for (a) horizontal, (b) downward, and (c) upward flow.
18 of a tire test a tire manufacturer has painted a line on the level sufface of a large flat test area. vehicles are
A piston-cylinder device contains steam that undergoes a reversible thermodynamic cycle. Initially the steam is at 400 kPa and 350C with a volume of 0.3 m^3. The steam is first expanded isothermally to 150 kPa, then compressed adiabatically to the in..
Suppose it is impossible to use an extensometer on the gauge section of a test specimen. Instead a butt-end specimen (Figure 3.2c) is used and the strain is computed from the cross-head movement.
Saturated steam at 120oC is transported through a steel pipe of diameter 250 mm. The temperature of the outer surface of the pipe can also be assumed 120oC. The pipe is centeredin concrete of square cross section (400x400 mm). The outer surfaces of t..
A compressed liquid mixture of 42 mol percent n-hexane (1) and 58 mol percent ethane (2) is to be fed to a flash tank where the pressure is reduced and a liquid and vapor stream separated. The flashing operation will be carried out at 32°C.
a pressure cooker cooks a lot faster than an ordinary pan by maintaining a higher pressure and temperature inside. the
Calculate the mass flow rate of R-134a in kg/s.
Estimate the Schmid Factor, which is used to convert the CRSS into a critical tensile 'yield' stress. Use the measured angle between the slip trace and the sample long axis
solve the following problem by showing all work answers in parenthesis steam enters a diffuser at 20 paia and 240degf
The professor takes a 3 liter empty can and fills it with saturated water vapor at 100 deg. C, 1 atm. He seals the can and immerses it in ice water. If the can is perfectly rigid, what is the final pressure in the can? And what mass fractions of the ..
A quick return mechanism is to be designed with a time ratio=1.22 and a cycle time of 0.2sec. What is the required crank speed (rad/s)? What are theta 1 and theta 2?
determine the rate of diffusion of cu in al at 300k using d do exp -edrt where do 0.15 cm2sec and ed 125 kjmole.
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