Model based economizer control of an air handling unit
US6415617B1 · kind B1 · utility
156Cited by
18References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Jan 10, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/2365
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A strategy for controlling an air side economizer of an HVAC system uses a model of the airflow through the system to estimate the load in two modes when minimum and maximum amounts of outdoor air are being introduced into the building. Transitions between minimum outdoor air and maximum outdoor air usage occur based on those estimated loads, which in a preferred embodiment are cooling loads. The second embodiment of this economizer control strategy uses the model and a one-dimensional optimization routine to determine the fraction of outdoor air that minimizes the load on the HVAC system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.