Heating systems – Processes
Patent
1987-12-18
1990-02-20
Bennet, Henry A.
Heating systems
Processes
62304, 62311, F24F 700, F28D 500
Patent
active
049019198
ABSTRACT:
A water evaporating air conditioning, indirect heating and recuperative ventilation system comprising an air to air counter-flow heat exchanger having separate supply and return heat exchange chambers that are separated by a heat exchange membrane, water in air saturation elements and air movement means is provided. Air from the external environment is supplied through supply heat exchange chamber to enclosed space and air from enclosed space is moved through return heat exchange chamber and then expelled to the external environment. In air conditioning, water is evaporated inside the return heat exchange chamber and heat is conducted across heat exchange membrane from the air in supply heat exchange chamber to cool air supplied to enclosed space. In heating, heat is provided to air from enclosed space before that air enters return heat exchange chamber and air supplied to enclosed space is heated by heat conduction across heat exchange membrane and heating of the air in supply heat exchange chamber.
REFERENCES:
patent: 4380910 (1983-04-01), Hood et al.
patent: 4392417 (1983-07-01), Johannsen
patent: 4426853 (1984-01-01), Mitani et al.
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