PROCESS AND DEVICE FOR USING OF LOW TEMPERATURE HEAT FOR THE PRODUCTION OF ELECTRICAL ENERGY
First Claim
1. A process for using of low temperature heat for the production of electric power, the process comprising:
- using supercritical carbon dioxide as working fluid, in which high compressed supercritical carbon dioxide as heat transfer fluid takes off low temperature heat of a heat source and then is expanded in a labor-producing expansion machine, which is connected with a generator, is cooled in this process and liquefied by means of a cold source, then increased of pressure by a pump for liquids to the working pressure and stored in a high pressure interim storage.
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Abstract
The invention relates to the using of low temperature heat for the production of electrical energy by using of supercritical carbon dioxide as working fluid.
It included a process and a device for process realizing with higher efficiency in relation to other known processes and with a wide temperature working range. This is related to a wider adjustability which allows an optimal operation both in summer and in winter operation without technical or constructional changes. The process is realizable without damages to the environment and is realizable with low effort. The relative emission of carbon dioxide is reduced in relation to other processes.
Low temperature heat from a given heat source (1) is taken off by carbon dioxide at high supercritical pressure as heat transfer and working fluid in the process. Then the heated fluid is expanding in an expansion machine (2), which is connected with a generator (3) for the production of electric power. In this process the fluid will be cooled, then liquefied by using of a cold source (4) and in liquid state compressed to the working pressure.
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Citations
17 Claims
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1. A process for using of low temperature heat for the production of electric power, the process comprising:
using supercritical carbon dioxide as working fluid, in which high compressed supercritical carbon dioxide as heat transfer fluid takes off low temperature heat of a heat source and then is expanded in a labor-producing expansion machine, which is connected with a generator, is cooled in this process and liquefied by means of a cold source, then increased of pressure by a pump for liquids to the working pressure and stored in a high pressure interim storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
Specification