Heat transmission method and high-temperature heat pump device
US10101065B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2016 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Sep 3, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/54
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A heat transmission method using a heat pump system according to the present invention uses a heat transmission medium containing at least one compound represented by general formula (1). In the formula, R1 is a CHmF3-m group, m is an integer of 0 or more and 3 or less, R2, R3 and R4 are each independently a fluorine atom, a chlorine atom, a bromine atom, an iodine atom or a hydrogen atom, and at least one fluorine atom is contained in a molecule. The heat transmission method includes (A) step of gasifying the heat transmission medium; (B) step of compressing the heat transmission medium into a supercritical state; (C) step of causing heat exchange between the heat transmission medium in the supercritical state and a medium to be heated; and (D) step of decreasing the pressure of the heat transmission medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.