Q341
Open questionThe capacity of double-effect evaporator is less than half of the capacity of two single effects, each of which is operating over same terminal temperature difference, when the
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Chemical Engineering · all questionsHeat Transfer
Heat Transfer
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Q342
Open questionChoose the most important factor on which the heat conducted through a wall in a unit time will depend on?
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Q343
Open questionThe actual temperature drop across the heating surface in an evaporator depends on the
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Q344
Open questionKg of liquid evaporated per hour in an evaporator is defined as its
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Q345
Open questionMechanical recompression evaporation is used in the production of
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Q346
Open questionReason for operating an evaporator in multiple effect is to secure
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Q347
Open questionIn the equation Q = UAΔt; Δt is
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Q348
Open questionIf Prandtl number is greater than the Schmidt number, then the
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Q349
Open questionPick out the wrong statement.
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Q350
Open questionGrashoff number, which is defined as g.β(Ts - T∞) ρ2.L3/μ2, is proportional to the ratio of buoyancy force to __________ force.
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Q351
Open questionFor __________ Prandtl number values, the heat conduction will be negligible in the buffer zone.
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Q352
Open question__________ paint has the minimum absorption co-efficient.
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Q353
Open questionIn case of evaporators, liquid entrainment results primarily due to
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Q354
Open questionIn a shell and tube heat exchanger, the shell side fluid velocity can not be changed by changing the
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Q355
Open questionIndirect contact heat exchangers are preferred over direct contact heat exchangers, because
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Q356
Open questionA measure of the extent to which viscous heating is important relative to the heat flow resulting from the impressed temperature difference is represented by the __________ number.
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Q357
Open questionNucleate boiling is promoted
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Q358
Open questionBlack liquor generated during paper manufacture is concentrated in a
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Q359
Open questionIf the baffle spacing in a shell and tube heat exchanger increases, then the Reynolds number of the shell side fluid
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Q360
Open questionA body cools down from 75°C to 70°C in 10 minutes. It will cool down from 70°C to 65°C in __________ minutes.
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