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  • Design and development of a plate-type condenser platform with engineered wettability for space applications
Design and development of a plate-type condenser platform with engineered wettability for space applications

Design and development of a plate-type condenser platform with engineered wettability for space applications

Date23rd Nov 2022

Time04:00 PM

Venue Through Google Meet: https://meet.google.com/wrt-uspc-adm

PAST EVENT

Details

Vapor condensation is extensively used in applications that demand the exchange of a substantial amount of heat energy or the vapor-liquid phase conversion. In conventional condensers, the condensate removal from a subcooled surface is caused by gravity force. This restricts the use of such condensers in space applications or in horizontal orientations. This study demonstrates proof-of-concept of a novel plate-type condenser platform for passively removing condensate from a horizontally oriented surface to the surrounded wicking reservoir without gravity. The condensing surface is engineered with patterned wettabilities, which enables the continuous migration of condensate from the inner region of the condenser surface to the side edges via surface energy gradient. The surrounding wicking reservoir facilitates the continuous absorption of condensate from the side edges. The condensation dynamics on different substrates with patterned wettabilities are investigated, and their condensation heat transfer performance is compared. The continuous migration of condensate drops from a superhydrophobic to a superhydrophilic area can rejuvenate the nucleation sites in the superhydrophobic area, resulting in increased heat transport. We can use the condenser design with engineered wettability mentioned above for temperature and humidity management applications in space.

Speakers

Mr. Tibin M Thomas (ME17D042)

Department of Mechanical Engineering