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Hollow cylinder of inner radius and outer radius is heated with uniform flux Ri qoi at its inner surface. The lower half of the cylinder is insulated and the upper half exchanges heat by convection and radiation.
The heat transfer coefficient is h, ambient temperature T∞, surroundings temperature and surface emissivity is T∞. fsurH Neglecting axial conduction and using a simplified radiation model, write the steady state heat equations and boundary conditions.
Calculate the quantity of DCE fed to the reactor to produce 5000 kg/h VC.
History of oil and gas filed corrosion by hydrogen sulphide on carbon steel a. Pitting formation
Derive an expression for Concentration of substrate versus the length of the packed bed reactor as a function - determine the Vm" (mol/m2s) value necessary to convert 80% of the substrate to product in the reactor.
At full load and rated voltage, the line current is 65 A. Assume the field flux to be reduced by 6% from its value at no load, due to the demagnetizing effect of armature reaction. Compute the full-load speed.
100 m3/min of a gas mixture containing 1 mol % water and 99 mol % air is cooled at constant pressure of 1 bar from 200 °C to 25 °C. 50 % of the water in the inlet stream is condensed during this process.
when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from
Steam at 2700 kPa and with a quality of 0.90 undergoes a reversible, adiabatic expansion in a nonflow process to 400 Ha. It is then heated at constant volume until it is saturated vapor. Determine Q and W for the process.
Calculate the final solution volume and the shaft work in kW that the pump must deliver, assuming that the surface of the stored solution and the pipe outlet are both at 1 atm. Data. PH2O = 1.00 kg/L, Pgly = 1.26 kg/L. (Use to estimate solution de..
A piece of hemlock wood measuring 15.15 x 14.8 x 0.75 cm is to be dried from the two large faces from an initial total moisture content of 90% to a final average total moisture content of lo%, with drying taking place in the falling-rate period wi..
The time-average value of the induced voltage. (e) The induced voltage when the plane of the coil is 30° from the vertical.
Consider 1 mole of ideal gas at 1 bar and 300 K, which of the following statements is true? The absolute entropy of the system is negative. Helium (m=4 amu) will have a larger entropy than argon (m=40 amu).
Discuss the criteria that you would use to determine the required dimentions of this device. What are the potential failure mechanisms? What materials might be appropriate for the manufacture of this device, and why?
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