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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.
If the feed quality is changed to 80 mol% vapour, the change in the slope of the q-line isA homogeneous reaction (R ® P) occurs in a batch reactor. The conversion of the reactant Ris 67% after 10 minutes and 80% after 20 minutes. The rate equation..
Homopolar generator. A spoked, conducting wheel rotates in an ac magnetic field as shown in Figure 10.44. The frequency of rotation is ω rad/s. The magnetic field intensity is H = 10 = 6 cos(ωt) [WA/m]
Assuming no heat flow from the steam to the tank, prepare graphs showing the mass of steam in the tank and its temperature as a function of pressure in the tank
Which of the following would you expect to be elastomers and which thermosetting polymers at room temperature? Justify each choice.
The bar with a hole is subjected to the axial load P.
A paint mixture containing 25% of pigment and the balance water sells for $18.00/kg, and a mixture containing 12.0% pigment sells for $10.00 kg. If a paint retailer produces a blend in containing 17.0% pigment, for how much ($/kg) should it be sold t..
If the thermocouple is mounted in a chemical reactor and the voltage is observed to go from 10.0mV to 13.6mV in 20s, what is the average value of the rate of change of temperature dT/dt, during the measurement period?
The catalyst is in the form of 1/16th inch (1.588 mm) beads with average bulk density of 700 kg/m3 . Design, size, and cost a reactor for making 200,000 metric tons per year of cyclohexane using this process.
Write reactions for which the enthalpy change will be a. Hf for solid aluminum oxide
What mass of propane must be burned to furnish this amount of energy assuming the heat transfer process is 60.% efficient?
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?
If a saturated solution of NaHCO3 at 60°C is cooled and comes to equilibrium at 30°C, what percentage of the dissolved salt crystallizes?
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