Automated technique of measuring room air change rates in HVAC system
US9664400B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2012 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Mar 13, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An HVAC system employs a technique built around a system identification/modeling method that determines critical building loads and airflows experimentally without relying on design plans or statistical modeling approaches. Operation includes observing the dynamic response of individual room temperature, in response to a change of inlet air flow conditions (either air flow rate and/or supply air temperature). This empirically-based model enables development of an optimized control approach that minimizes conditioned airflow while meeting required ventilation, thermal, and humidification performance objectives. Building-wide performance is achieved by aggregating empirically determined room-level loads, thus ensuring that the coupled performance objectives can be achieved while minimizing energy use for every space within a building.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.