Displacement ventilation systems having integrated heat exchangers with heat conductive air filtration substrates

Abstract

A displacement ventilation system for a room includes a first duct located inside the room and extending between a floor and a ceiling of the room, an air inlet coupled with the first duct for drawing air into the system, and an elongated diffuser extending adjacent the floor for diffusing at least some of the outside air over the floor of the enclosed spaced. The system includes a return air duct extending adjacent the ceiling and being coupled with the first duct for removing return air from the room and advancing the return air toward the first duct, and a heat exchanger for transferring thermal energy between the return air and the outside air. The heat exchanger has one or more heat conductive air filtration substrates integrated therein for conducting heat. A heat pump changes a temperature level of the outside air or the return air passing through the heat pump.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]The present patent application is a continuation-in-part of U.S. patent application Ser. No. 15 / 852,981, filed on Dec. 22, 2017, now allowed, which is a continuation in part of U.S. patent application Ser. No. 12 / 718,875, filed on Mar. 5, 2010, now U.S. Pat. No. 9,851,116, which claims the benefit of U.S. Provisional Application Ser. No. 61 / 291,770, filed Dec. 31, 2009, the disclosures of which are hereby incorporated by reference herein.BACKGROUND OF THE INVENTIONField of the Invention[0002]The present invention relates to ventilation systems for buildings and more specifically relates to displacement ventilation systems for buildings such as school building, office building, auditoriums, and theatres.Description of the Related Art[0003]Many studies have shown that poor environments in enclosed spaces, which are primarily due to the effects of indoor pollutants, adversely affect the health, attendance, and performance of room occupants. ...

AI Technical Summary

Benefits of technology

This patent describes a new ventilation system that has several advantages over traditional systems. The displacement ventilation system delivers more air to a room, minimizes noise, and increases occupant comfort. It also creates healthier air, reducing sickness and improving productivity. The system has a unique air flow that carries pollutants away from the room, improving air quality. Additionally, the low velocity of the air creates quieter acoustics, making it easier to meet building standards for noise.

Problems solved by technology

In particular, the low velocity of the air leaving a linear diffuser is relatively quiet compared to the noisy, in-rush of air often experienced when using mixed ventilation systems.

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