Method for controlling an air distribution system using .DELTA.T
US4890666A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1987 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Aug 26, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The difference between the zone temperature and the scheduled setpoint, or .DELTA.t, is the basic data from each zone. Communication between the air handler control and the air terminal control is provided via the air system control so that the system is temperature, rather than pressure, responsive. The same temperature air is supplied to each zone in amounts sufficient for ventilation requirements independent of temperature requirements. The amount of air supplied beyond the ventilation requirements is controlled to achieve terminal satisfaction. The terminals are sampled to determined their satisfaction and their responses are requested as votes for either heating or cooling. Whether the system supplies heated or cooled air is determined by the voting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.