Building pressure control
US9494335B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | May 9, 2013 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Dec 21, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/50
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The air flow of an HVAC system for a multi-story building B is controlled by optimizing the pressure setpoint at the return air plenum PL-1 used for removing or recirculate air from the building, by measuring a pressure differential between the building B air and atmosphere A air at a sensor location P-2, computing a desired pressure differential between the building B air and atmosphere A air, based upon a computed stack effect pressure that is expected to develop at the sensor location on the building for the current inside and outside air temperature in the absence of mechanical action, and controlling the return air fan and damper D-1 to pressurize the air in at the sensor location to produce the desired pressure differential between the building B air and atmosphere A air at the sensor P-2 location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.