Steam condensate is recovered by steam traps and recycled for use as boiler feed water, because of its low

Related MCQs

• A backward feed multiple effect evaporator is better than forward feed for concentrating cold feed, because it provides
• Fqra cold viscous feed, backward feed gives __________ than forward feed.
• Steam traps are provided in steam carrying pipelines to
• A process stream of dilute aqueous solution flowing at the rate of10 Kg.s-1 is to be heated. Steam condensate at 95°C is available for heating purpose, also at a rate of 10 Kg.s-1 . A 1 - 1 shell and tube heat exchanger is available. The best arrangement is
• Corrosiveness of steam condensate is due to the presence of
• Steam traps are used to
• The advantage of backward feed multiple effect evaporators over forward feed units is that
• The thickness of condensate layer in filmwise condensation depends on the
• The average heat transfer co-efficient for laminar film condensation on vertical surface is inversely proportional to (where, ΔT = Temperature drop across condensate film)
• A 10 cm dia steam pipe, carrying steam at 180°C, is covered with an insulation (conductivity = 0.6 W/m.°C). It losses heat to the surroundings at 30°C. Assume a heat transfer co-efficient of 0.8 W/m2 .°C for heat transfer from surface to the surroundings. Neglect wall resistance of the pipe and film resistance of steam. If the insulation thickness is 2 cms, the rate of heat loss from this insulated pipe will be