Energy recovery ventilation
AssigneeBuilding Performance Equipment, Inc. (a Delaware Corporation)
InventorKlas C. Haglid
Life of this patent
Estimating the term…
Abstract
Condensate accumulating in the incoming outside air flow passages of a heat exchanger is fed back into the exhaust flow passages of the heat exchanger to provide improved heat transfer in the heat exchanger, and to avoid the necessity for drainage of the condensate from the heat exchanger. The heat exchanger includes a plastic multi-tube panel core and a solid plastic housing, with opposed-flow heat exchange and inlet-outlet extensions from only one side of the core.
Claims16
An energy recovery ventilating device comprising
- a heat exchanger having plural air intake flow conduits interleaved with plural air exhaust flow conduits, and
- at least one liquid flow conduit for conducting liquid condensed from the air flowing through said air intake conduits into said air exhaust conduits.
An air-to-air heat exchanger having
- a core made of elongated parallel plastic panels composed of individual tubes secured together side-by-side with one another, and spacers secured at intervals spaced from one another along the lengths of said panels and secured to adjacent ones of said panels to space them apart and secure them together to form a unitary core structure,
- a housing having walls secured to and enclosing said core,
- said housing having a first inlet opening at one end of said core and a first outlet opening at the opposite end of said core, each of said first inlet and outlet openings communicating with said tubes in said panels,
- said housing having a second inlet opening near said opposite end of said core and a second outlet opening for communicating with the spaces between said panels,
- and a structure for substantially blocking the flow of air between said tubes and said spaces.
A method of energy recovery ventilation using
- a heat exchanger having exhaust air ducts interleaved with outside air ducts to exchange heat between the incoming outside air and the outgoing exhaust air,
- and comprising the steps of
- collecting condensate from said outside air ducts and delivering said condensate to said exhaust air ducts to enhance the transfer of heat from said outside air to said exhaust air.
Dependencies are inferred from the claim text.