F - Mech Eng,Light,Heat,Weapons – 24 – D
Patent
F - Mech Eng,Light,Heat,Weapons
24
D
257/22
F24D 11/00 (2006.01)
Patent
CA 1118404
HEAT EXCHANGE SYSTEM Abstract A plurality of parallel heat exchange tubes are grouped together and connected at the ends to form a bank. One or more banks are positioned so that one end lies in a supply air stream and the other end lies in an exhaust air stream. Each bank of tubes is sealed and contains a working fluid of the type having a liquid phase and a vapor phase. At one end of each tube, the working fluid absorbs heat from one of said air streams to effect vaporization of said fluid, the vaporized fluid flows to the cooler end of said tube where said vaporized fluid gives up heat to the cooler air stream and condenses in the tube. The condensed fluid then flows back to the warmer end by means of gravity. One end of the lowest tube in each bank includes a reservoir connected thereto which communicates with the normally cooler air path and in- cludes a heating coil operatively associated therewith for providing a modulated control of the system responsive to the temperature of the enclosed space being ventilated. Additionally, a second control system turns selected banks of heat tubes on and off to prevent frost from forming thereon.
359709
Gamewell Manufacturing Inc.
Meredith & Finlayson
LandOfFree
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