Method and means for controlling the condition of air in an enclosure
US4819447A · kind A · utility
9Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 25, 1983 |
| Grant date | Apr 11, 1989 |
| Priority date | — |
| Expiry date | Mar 25, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A40/25
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
The air in a greenhouse is dehumidified using a direct-contact heat exchanger utilizing concentrated brine. The diluted brine produced when water vapor in the greenhouse condenses on the concentrated brine is regenerated in a fuel-fired boiler whose products of combustion, carbon dioxide and water vapor, are passed into the greenhouse. The products of combustion provide the desired level of carbon dioxide in the greenhouse; and the excess water vapor in the products of combustion as well as a significant portion of the water vapor produced by plants, growing in the greenhouse are removed by the hygroscopic concentrated brine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.