Chemical Engineering :: Process Equipment and Plant Design
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For storing hazardous chemicals in large storage tanks, the minimum safe distance between the two tanks should range between __________ times the tank diameter.
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Which of the following factors determine the amount of entrainment in a distillation column ?
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The absorption factor is defined as (where, S1 = slope of the equilibrium curve, S2 = slope of the operating line)
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In shell and tube heat exchangers, straight tie rods are used to
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In a rotary drier, the average retention time of solid is(where Z = length of the drier, metres ρ = apparent solid density, kg/m3 L = flow rate of dry solids, kg/see. m2 drier cross-section H = hold up of solid.)
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In case of design of a shell and tube heat exchanger,
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In a cylinderical vessel subjected to internal pressure, the longitudinal stress σL and the circumferential stress, σn are related by
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Nominal size of a pipe is an indication of its __________ diameter.
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Excessive liquid gradient on a tray may result in the
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The ratio of tube length to shell diameter in case of liquid shell and tube heat exchanger ranges from
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A.
minimum cleaning lane of 6.5 mm is provided, when tubes are on a square pitch.
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B.
minimum tube sheet thickness (in which tubes are fixed) is equal to the O.D. of the tube upto 15 mm tube diameter; and for > 15 mm tube diameter, tube sheet thickness is smaller than tube diameter.
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C.
O.D. of the tube is 6 to 40 mm while the tube lengths used are 0.5, 2.5, 3.0, 4.0, 5.0, 6 metres.
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D.
all (a), (b) & (c).
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