Evaporator for a heat transfer system
AssigneeAlliant Techsystems Inc.
InventorsEdward J. Kroliczek, Michael Nikitkin, David A. Wolf, Sr.
Life of this patent
Estimating the term…
Abstract
A heat transfer system includes an evaporator having a heated wall, a liquid barrier wall containing working fluid, a primary wick positioned between the heated wall and an inner side of the liquid barrier wall, a vapor removal channel located at an interface between the primary wick and the heated wall, and a liquid flow channel located between the liquid barrier wall and the primary wick. Methods of transferring heat include applying heat energy to a vapor barrier wall, flowing liquid through a liquid flow channel, pumping the liquid from the liquid flow channel through a primary wick, and evaporating at least some of the liquid at a vapor removal channel.
Claims53
An evaporator for a heat transfer system, the evaporator comprising:
- a heated wall having a heat-absorbing surface adjacent to a heat source;
- a liquid barrier wall containing working fluid on an inner side of the liquid barrier wall, which fluid flows only along the inner side of the liquid barrier wall;
- a primary wick extending from a portion of the heated wall to a portion of the liquid barrier wall;
- a vapor removal channel located at an interface between the primary wick and the heated wall and formed in at least one of an inner surface of the heated wall and an outer surface of the primary wick;
- and
- a liquid flow channel located at an interface between the liquid barrier wall and the primary wick and formed in at least one of an inner surface of the liquid barrier wall and the outer surface of the primary wick.
A heat transfer system comprising:
- an evaporator including:
- a heated wall having a heat-absorbing surface adjacent to a heat source;
- a liquid barrier wall containing working fluid on an inner side of the liquid barrier wall, which fluid flows only along the inner side of the liquid barrier wall;
- a primary wick extending from a portion of the heated wall to a portion of the liquid barrier wall;
- a vapor removal channel located at an interface between the primary wick and the heated wall and formed in at least one of an inner surface of the heated wall and an outer surface of the primary wick, the vapor removal channel extending to a vapor outlet;
- and
- a liquid flow channel located at an interface between the liquid barrier wall and the primary wick and formed in at least one of an inner surface of the liquid barrier wall and the outer surface of the primary wick, the liquid flow channel receiving liquid from a liquid inlet;
- a condenser having a vapor inlet and a liquid outlet;
- a vapor line providing fluid communication between the vapor outlet and the vapor inlet;
- and
- a liquid return line providing fluid communication between the liquid outlet and the liquid inlet.
An evaporator for a heat transfer system, the evaporator comprising:
- a heated wall having an annular shape and a heat-absorbing surface adjacent to a heat source;
- a liquid barrier wall having an annular shape and being coaxial with the heated wall;
- a primary wick extending from a portion of the heated wall to a portion of the liquid barrier wall and being coaxial with the heated wall, wherein the heated wall is positioned within a portion of both the liquid barrier wall and the primary wick;
- a vapor removal channel located at an interface between the primary wick and the heated wall;
- and
- a liquid flow channel located at an interface between the liquid barrier wall and the primary wick.
Dependencies are inferred from the claim text.