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What strategies could be used to counteract the increased Nitric oxides emissions with ethanol blended petrol?
A 10 kW electric heater is used to heat 2 kg of air contained in an insulated rigid tank from 400 kPa and 50 °C to 200 °C. The ambient air temperature and pressure is 20 °C and 100 kPa, respectively.
Discuss the factors beyond crystal structure, quenching and temperature that affect he results of a specimen in a Charpy V notch impact testing.
Calculate these two sets of centerline and control limits. Once points are plotted, how will the results of these two charts differ?
You are asked to measure the rate at which waste gases are being discharged from a stack. The gases entering contain 2.1 % carbon dioxide. Pure carbon dioxide is introduced into the bottom.
an air-standard otto cycle uses 0.1 kg of air and has a clearance of 17%. THe intake conditions are 98 kPa and 37 C and the energy released during combustion is 1600 KJ/kg. What is the compression ratio of the cycle?
Plot the total mass in the tank, in kg, and the amount of heat transfer, in kJ, versus the final quality x ranging from 0.2 to 1.0
Immediately before failure, the testing machine records a force (F) of 50N, and a deformation (δ) of 2mm. We need to determine the maximum flexural strength (σ)
Twenty-five samples of steel beam were chosen and tested for Young's Modulus. Eight had a modulus of E = 30 x 10^6 psi. Two had a modulus of E = 29 x 10^6 psi. Fifteen had a modulus of E = 30. x 1-^6 psi.
If the pipe is to be insulated with glass wool insulation (k=.05 W/m C) in order to decrease the temperature rise of water to .25 degrees C, determine the required thickness of the insulation.
Determine a symbolic expression for the total thermal resistance of wall, including inside and outside convection effects for prescribed conditions.
In a refrigerator 1 kW is removed from the -10 degree C cold space and 1.3 kW is moved into the 30 degree C warm space. Find the exergy fluxes including direction associated with the two heat transfers.
Determine the crack growth for cycle #3 using Wheeler's retardation model (m=2)-finite width correction factor for SIF
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