This set of Heat Transfer Operations Multiple Choice Questions & Answers (MCQs) focuses on “Types of Condensers”.
Explanation: The bed is stable and at a low height, hence the given figure is packed column. If it had been in free state, it would have been a fluidised column.
Explanation: The tube side condenser is a special condenser in which the coolant flows in the shell and the condensation in the tubes, hence the name tube side condenser. It cannot usually handle high pressure drops.
Explanation: The sparged tube condenser consists of a perforated tube/ pipe with holes for injecting bubbles of vapour into a pool of liquid. The condensate being immiscible float at the top of the coolant, or maybe the coolant is the same material as the vapour.
Explanation: The spray type condenser is actually a direct contact condenser where in which the coolant and gas come in direct contact as the coolant is sprayed with the use of nozzles in a vessel filled with the vapour.
Explanation: The baffled column condenser is similar to the spray condenser, with the difference that the coolant is directed to flow over a set of trays in a column. The vapour is supplied from the bottom as shown in the diagram.
Explanation: The air cooled condensers are a separate category of condensers which use air as the cooling medium, it may be natural/forced convection air cooled condensers. As an example for this being the commonly used indoor refrigerators and air conditioners.
Explanation: The jet condenser is a device in which a jet of coolant liquid forced into a hot vapour stream, de-superheating the vapour and hence condensing it. Here a jet of liquid is injected into a vessel carrying vapour via a plate/pipe and a nozzle located at the centre axis.
Explanation: The shell side condenser is a special condenser in which the coolant flows in the tubes and the condensation happens in the shell, hence the name shell side condenser. This condenser can handle large pressure drops.
Sanfoundry Global Education & Learning Series – Heat Transfer Operations.
To practice all areas of Heat Transfer Operations, here is complete set of 1000+ Multiple Choice Questions and Answers.
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