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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.
If the compressor efficiency is 0.8, what is the power requirement of the compressor and what is the discharge temperature of the propylene?
A chord subtends an angle of 68° at the centre of a circle of radius 200mm. Find the length of the chord.
If the feed contains 0.2% argon (from the nitrogen separation process), calculate the purge rate required to hold the argon in the recycle stream below 5.0%. Percentages are by volume.
when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from
The core loss at rated voltage is 45 W, and the copper loss at rated load is 100 W. Neglect the exciting current of the transformer. Find the per-unit voltage regulation when the transformer is supplying full load at 110 V and 0.9 lagging power fa..
Neglecting any charges connected with administration of the fund, how much money should be deposited in the fund at the beginning of the program in order to have enough money accumulated to replace a complete $50,000 loss after 10 years?
Calculate the energy required to heat 1kg of CO 2 from 400ºC to 600ºC at a constant pressure of 1atm using:-
Reconnected in Y-?, with the same high tension voltage supplied and the same load resistors connected?
For the MgO-Al2O3 system, what is the maximum temperature that is possible without the formation of a liquid phase? At what composition or over what range of compositions will this maximum temperature be achieved?
Do the same exercise for sulfate salts, hydroxide salts, and phosphate salts (list three soluble salts and three insoluble salts). List the formulas for six insoluble Pb2 salts and one soluble Pb2 salt. What do you make of the formulas?
Determine the primary current, primary voltage, and power factor.
The time-average value of the induced voltage. (e) The induced voltage when the plane of the coil is 30° from the vertical.
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