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Introduction


Current systems using microgravity phase separation techniques to remove the condensate build up
are in place in various space applications. But, these systems contain several key flaws. The
technology has proven itself prone to bio-fouling and clogging due to continually wetted surfaces
and small fluid passages. Also, they require the investment of many hours to perform the constant
maintenance to keep these units running efficiently.

The purpose is to design a system that will provide efficient cooling and dehumidification
of a microgravity environment, while reducing, if not eliminating, all of the undesirable
traits of the previous system. The new design will maintain a sterile environment within the
cooling coils, eliminating the possibility of bio-fouling and the clogging that is associated
with current units. The design will require maintenance, but not on a continually frequent
basis. It will also provide potable water produced from the condensate collected within the
system.

The proposed design will alleviate most if not all of these concerns. It will no longer have small
fluid passages that will be prone to clogging, nor will it be prone to bio-fouling. If fact this
system will be quite sterile. However, there will still be a need for maintenance of the unit, but
not in such frequent intervals. The design consists of many slowly spinning cooling disks to which
water will condense on. There is a wiper assembly along the radial axes of the disks to transfer
the condensate from the disks into a holding basin located within the wiper assembly. The collected
water will be forced out of the collection basin on regular intervals and be made available to an
existing potable water supply unit.


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