Optimum start/stop dependent upon both space temperature and outdoor air temperature
US4660759A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 1984 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Nov 13, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2110/20
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A system for determining the optimum stop time of an air conditioning system within a building so that energy can be conserved by shutting down the temperature control system an amount of lead time prior to end of occupancy of said building wherein said amount of lead time is arranged to confine space temperature within a comfort range as said space temperature drifts during said amount of lead time, said system including a space temperature sensor for sensing space temperature within the building, an outdoor air temperature sensor for sensing outdoor air temperature external to the building, and a controller connected to the space temperature sensor, the outdoor air temperature sensor and the temperature control system for determining temperature drift rate within the building and for turning off the temperature control system before the end of occupancy of the building by an amount of lead time dependent upon the temperature drift and the outdoor air temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.