Cofluids for use with carbon dioxide refrigerant
US6415614B1 · kind B1 · utility
15Cited by
8References
20Claims
0Family size
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Key dates
| Filing date | Apr 23, 2001 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Apr 23, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2500/18
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A carbon dioxide/cofluid mixture is provided for use in a refrigeration cycle in which the carbon dioxide is alternately absorbed and desorbed from the cofluid. The mixture includes from 50% to 95% cofluid and from 5% to 50% carbon dioxide. The cofluid is selected so that the mixture falls within region A of the plot of pvap versus &Dgr;hsoln shown in FIG. 3. The &Dgr;hsoln of the mixture is the differential heat of solution of the carbon dioxide in the cofluid at 5 wt % and 0° C. The pvap of the mixture is the vapor pressure of the carbon dioxide over the solution at 20 wt % and 40° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.