An air to air heat exchange system for removing undesirable air from an enclosed structure. The heat exchanger provides for the removable of air containing pollutants, toxics gases and odors while providing for the recovery of heat from the exhaust air. The system utilizes a plurality of tubes within a larger tube so that air can flow freely over and around the smaller tubes thus providing for maximum heat transfer between the incoming air in the smaller tubes and the exhaust air in the larger tube. The smaller tubes, if used for the incoming air, permit the air to be distributed to various selected locations throughout the structure.
A method of preparing an installation of channel using units in several rooms on the one and same floor so as to allow a subsequent completion of units with multiple channel elements. Onto a flooring support between a distributing central unit and the rooms on the floor, the flexible channel elements which are enclosed in an exterior casing, are enclosed. These channel elements are a) a separate channel or conduit for the flow of a hot or cold brine to and from radiators in the rooms, b) channels for supplying electricity and/or for communicating with the units; and c) a channel space for fresh air between the elements. The floor is then finished to cover the multiple channel elements.
Apparatus and method for removing stale air from a residence or other enclosed space, and replacing that air with fresh air from outside the enclosed space. Stale air outlets are placed at the ceiling in one or more locations throughout the enclosed space and ducts connect those outlets to an air vent elevated in relation to the stale air outlets. An inlet air passage extends between a fresh air inlet located outside the enclosed space, and the air return side of a forced-air heating/cooling unit in the enclosed space. Warm air rises to the ceiling within the enclosed space, increasing in pressure and flowing through the stale air outlets to the relatively lower-pressure outside air. This air flow induces an inward flow of fresh air into the system. The outgoing and incoming air flows move through a heat exchanger, allowing thermal recovery of heat due to differential temperatures between the two air flows. The system operates in a passive mode to exhaust stale air and induct fresh air while the fan of the heating/cooling unit is not operating, and accomplishes the same result in a mechanical mode when the fan operates.
A modular heat recovery ventilation system includes a modular heat exchanger and a modular apparatus spaced from the heat exchanger for delivering both fresh air and exhaust air to the heat exchanger. The apparatus includes separate blowers for generating two separate air streams. The apparatus includes an access plate at the bottom thereof allowing access to the interior of the enclosure of the apparatus through a ceiling.
An apparatus for removing heat caused by living embryos within an insulated hatchery enclosure. The apparatus comprises an enclosed chamber bounded by two pairs of opposing side walls and opposing first and second end walls spanning the insulated hatchery enclosure. The first end wall has a heat conductive portion, such as a copper plate, adapted to conduct heat between an outer surface of the end wall facing an interior of the insulated enclosure and an inner surface of the end wall adjacent the enclosed chamber. A plurality of baffles within the chamber define a serpentine path within the chamber through which air is directed from a start position along the path to an end position. A fresh air inlet coupled to the start position communicates fresh air taken from outside the insulated enclosure into the chamber and then through the serpentine path. An exhaust air outlet coupled to the end position communicates air that has flowed through the serpentine path away from the chamber and out of the insulated enclosure.
