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Nitrogen based thermal storage medium

A heat storage and heat energy technology, applied in the field of heat storage systems

Inactive Publication Date: 2015-09-16
MAARKY THERMAL SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Pressurized steam flows through a steam turbine generator to generate electricity

Method used

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  • Nitrogen based thermal storage medium
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Embodiment Construction

[0028] Referring to the drawings, wherein the same or similar reference numerals represent the same or similar components throughout the several views. figure 1 is a schematic diagram of day and night operation of a direct heating solar power plant (substantially indicated at 10). Boiler 30 is located on top of the solar tower. During the day, concentrated solar radiation is directed towards the outer surface of the boiler tubes 40 of the boiler 30, which carry the water at high pressure. The concentrated solar energy converts the water into steam, which flows through the means to generate electricity (steam turbine 50 and generator 60). Low pressure steam from steam turbine 50 is condensed in condenser 70 . The resulting condensate is drawn into condensate pump 20 and directed back to boiler tubes 40 .

[0029] Cooled nitrogen from one or more cold storage tanks 80 is drawn by a nitrogen pump 90 and directed to a section 100 of the boiler tubes. The concentrated solar en...

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Abstract

A thermal storage and transfer method for use in both indirect and direct heating solar power plants that involves the use of nitrogen gas as a thermal storage medium for heat transfer in circumstances where little or no solar radiation is available to produce the thermal energy needed to convert water into steam and generate electricity.

Description

[0001] Cross References to Related Applications [0002] This application claims US Provisional Application No. 61 / 754,766, filed January 21, 2013. technical field [0003] The present invention relates generally to heat storage systems for use in concentrated solar power plants, and in particular to nitrogen-based heat storage media. Background technique [0004] The global imperative to reduce carbon dioxide emissions and global warming has stimulated interest in alternative energy sources. Conventional power plants using petroleum-based products - such as coal, natural gas, oil, etc. - are being phased out in favor of non-polluting alternative energy sources. The design and construction of new nuclear power plants are subject to additional scrutiny following the Fukushima Daiichi accident in Japan in 2011. Solar and wind power have begun to be seen as viable alternatives to nuclear, coal-fired and gas-fired power. Large-scale solar and wind power installations are unde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/07F24S20/20
CPCF24J2/07F03G6/067Y02E10/44F24J2/0477F24J2/4649Y02E10/46F24S80/20F24S20/20F24S10/20
Inventor 兰嘉·纳蒂格
Owner MAARKY THERMAL SYST