Chemical heat pump
US6634183B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 5, 2001 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Dec 5, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
In a chemical heat pump a substance is used which within the temperature range for which the heat pump is intended has a transition between a solid phase and a solution phase. The substance can for a solar driven chemical heat pump comprise magnesium chloride hexahdrate. In an accumulator part of the heat pump a heat exchanger (21) is provided enclosed by a net (23). The solid phase is primary located inside the net in contact with the heat exchanger while the solution phase flow out of the net and is collected in space (24′) below the heat exchanger. From this space the solution phase is pumped and sprayed over the heat exchanger from a spray bar (25). Thereby, all the time equilibrium is maintained. The advantage including the constant temperature step and the relatively large energy content of solid substance is thereby combined with the high power of liquid substances. Such a chemical heat pump is among other things suitable for converting low grade heat energy such as solar energy to cooling and in some cases also for a simultaneous production of heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.