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Slabs of filter cake with a bone-dry density of 1,600 kg/m3 are to be dried from an initial free-moisture content of 110% (dry basis) to a final free-moisture content of 5% (dry basis) batchwisein trays that are 1 m long by 0.5 m wide, with a depth of 3 cm. Drying will take place from thetop surface only. The drying air conditions are 1 atm, 200oF, and a 100oF wet-bulb temperature.The air velocity across the trays is 3.5 m/s. Experiments under these drying conditions show acritical free-moisture content of 70% (dry basis), with a linear falling-rate period from Xc to X*.Determine:
(a) drying time for the constant-rate period;
(b) drying time for the falling-rate period.
Prepare a piping diagram and calculate the pipe size as well as the required power of the pump. You need to specify the type of fittings and the pipe material for your calcu
What is the settling velocity in still air of a particle that is 40 µm in diameter and spherical? The particle has a density of 1400 Kg/m3. Use a density of 1.2 Kg/m3 and a
The effect of a hazardous substance depends on the concentration of the substance that is present in the body's systems. The concentration depends on the stages of toxicoki
Explain the term "Selectivity" and "Yield".Selectivity is defined as the ratio of moles of desired product to moles of undesired product.Yield is defined as the ratio of mol
The process used in the manufacture of aniline from nitrobenzene is described in Appendix F, Design Problem F.8, which is available in the online material at booksite.Elsevi
Determine the delta connected load impedances if the system voltage is 440 V. With the information given, is it possible to find whether the load impedance is capacitive or
Formulate arguments for and against the idea that risk assesment can and should be separated from risk management. Discuss land as a natural resource and how and why it is or
The following liquids, all at atmospheric pressure and 322.15 K (49"C), are mixed: 11.3 kg of pure water, 40 kg of pure sulfuric acid, and 34 kg of 25 mass-% sulfuric acid.
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