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A System for Highly Pressurized and Targeted Delivery of Hot or Cold Air in Buildings Disclosure Number: IPCOM000226930D
Publication Date: 2013-Apr-24
Document File: 3 page(s) / 25K

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A system and method for highly pressurized and targeted delivery of hot or cold air in buildings is disclosed.

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A System for Highly Pressurized and Targeted Delivery of Hot or Cold Air in Buildings

Disclosed is a system and method for highly pressurized and targeted delivery of hot or cold air in buildings.

Heating, ventilation, and air conditioning (HVAC) is important to individuals and companies. Some of its uses include employee comfort, as well as material and equipment safety. HVAC is a well known topic and used by both individuals and businesses on a daily basis. In this invention, for an existing HVAC system, the existing HVAC ducts are utilized. High pressure hoses are snaked through the air ducts terminating in nozzles that control the amount of air that is delivered. These nozzles accept feed control signals from a control system. The control system may be tied into a building management system. The central control system or building management system detects the temperature of the room and performs a calculation to determine how much chilled or heated air must be delivered given the temperature delta and air capacity of the room. The central system, can then open the nozzles for that location and deliver the requested air. If multiple requests are received, i.e. for several rooms, then the central system adjusts its calculations dynamically determining the necessary air flow (including durations) to the multiple locations. With a tight control loop, exact calculations are not necessary. Before, after, or while heating or cooling the air the option of purifying the air may be provided. Air purification can be supported by filtering, application of UV light, or by other means.

By virtue of the air in the system being generally more pressurized than in a standard HVAC setup, it is possible to more effectively contain air in open areas of a building or in rooms with doorways that are frequently opened and closed, by utilizing virtual air walls. Such virtual air walls are not completely uncommon today and are most commonly seen at the entry way to buildings or malls. They are experienced as a blast of upward-flowing air with a considerable delta-t (t=temperature) from the outside air. The purpose of the virtual walls is to minimize energy losses to the environment. Such virtual air walls can be used more locally (i.e. not just at the entrance to the building) for air containment, and, moreover, under a careful control loop where a real-time cost-benefit calculation can be done to determine whether the air wall will result in a net energy savings.

In addition to the above-mentioned pressurized system of air hoses, possibly including local air walls, and a control loop, a temperature management system is planned to detect and, in some cases, predict active areas where human activities occur, recognizing activity patterns in the active areas, and proactively setting up temperatures accordingly. The management system starts detection (using cameras, infrared sensors, or other presence detection devices) when a first person walks into the...