摘要:
The present invention relates to a mixture of inorganic nitrate salts comprising sodium nitrate and potassium nitrate in certain proportions which can be used both for the storage of thermal energy and as heat transfer fluid, for example within concentrated solar power (CSP) plants. Preferably the present invention may be used in thermodynamic solar systems with point-focusing, receiver-type power towers using heliostat mirror geometries on-ground. The present invention may furthermore be used as heat transfer fluid in a number of applications for industrial processes involving heat exchanges in a wide range of temperatures. In accordance with the invention there is provided an anhydrous, binary salt mixture, comprising potassium nitrate KNO 3 and sodium nitrate NaNO 3 wherein the KNO 3 content ranges from 60% by weight to 75% by weight, preferably from 63% by weight to 70% by weight and more preferably from 65% by weight to 68% by weight.
摘要:
Solar plant (1), in particular a solar EOR plant, comprising a water steam circuit (2) with a steam outlet (26) and a water inlet (22). The water steam circuit comprises a solar heat system which uses solar energy to heat up water in the water steam circuit. The water steam circuit further comprises a separator (5). The separator is arranged downstream from the solar heat system. The separator has a water-steam inlet (5a) which is in fluid communication with the heat system outlet (4b) for receiving the water-steam mixture from the solar heat system. The separator has a separator steam outlet (5b) which is in fluid communication with the steam outlet of the circuit and a separator water outlet (5c) which is via a recirculation conduit in fluid communication with the solar heat system inlet (4a).
摘要:
The present invention relates to a heat exchange system for producing superheated working fluid for a steam turbine from expected supercritical hydrothermal fluid from a geothermal reservoir, comprising a header-type heater with a shell (10), where an inlet is conducted to a feed pipe (20) for transporting the expected supercritical hydrothermal fluid from the geothermal reservoir into the shell (10) and where an outlet is conducted to a drain pipe (30) for transporting the condensed hydrothermal fluid from the shell (10) to a disposal, working fluid pipes (70,80) circulating feed water from a condenser of the steam turbine into a heat exchange bundle system within the shell (10) and retrieving superheated steam from the heat exchange bundle system for the steam turbine, a spraying device (40) is arranged within the shell (10) for spraying a first (11) bundle of the heat exchange bundle system, and a mixing device (60) is arranged between an output of the first bundle (11) and an input of a working fluid down streamed second bundle (12) for mixing working fluid from the output of the second bundle (12) with working fluid from the output of the first bundle (11).
摘要:
A hybrid solar power plant includes a first circuit including a first flow medium and a second circuit including a second flow medium. The first circuit includes at least one solar collector to transfer collected solar heat to the first flow medium. The first circuit includes at least one first fluid/second fluid heat exchanger to exchange heat from the first flow medium in the first circuit to the second flow medium in the second circuit. The second circuit is preferably a water/steam circuit. The second circuit includes at least one steam turbine for generating electricity out of steam. The first circuit further includes a heat source for generating a flow of heating gas. The heat source serves as the auxiliary energy. A gas/first fluid heat exchanger is provided for transferring heat from the flow of heating gas to the first flow medium in the first circuit.
摘要:
A steam water separator includes: —a vessel having a vessel wall delimiting an interior of the vessel, where the vessel is configured to contain steam in a steam zone and water in a water zone in the interior of the vessel, —at least one inlet for introducing steam and/or water in the vessel, —at least one steam outlet for taking steam out of the vessel, —at least one water outlet for taking water out of the vessel, and a wetting device configured to wet in the steam zone an inner surface of the vessel wall.
摘要:
A hybrid solar power plant includes a first circuit including a first flow medium and a second circuit including a second flow medium. The first circuit includes at least one solar collector to transfer collected solar heat to the first flow medium. The first circuit includes at least one first fluid/second fluid heat exchanger to exchange heat from the first flow medium in the first circuit to the second flow medium in the second circuit. The second circuit is preferably a water/steam circuit. The second circuit includes at least one steam turbine for generating electricity out of steam. The first circuit further includes a heat source for generating a flow of heating gas. The heat source serves as the auxiliary energy. A gas/first fluid heat exchanger is provided for transferring heat from the flow of heating gas to the first flow medium in the first circuit.
摘要:
A steam generator includes a substantially horizontal gas conduit (1) to guide a heating gas flow (2) and an evaporator unit positioned at least partially in the horizontal gas conduit for transferring heat from the heating gas to a flow medium which flows through the evaporator unit. The heat transfer section of the evaporator unit of the steam generator is bottom fed, which means that the inlet conduit is arranged at a lower region of the heat transfer section. The outlet conduit is arranged at an upper region. The inlet conduit allows an once through operation of the evaporator section which is necessary to enable operation under supercritical circumstances. The evaporator unit includes at least two evaporator stages (3, 4) which are arranged in a cascade. Each evaporator stage includes a heat transfer section (12, 21) and a separator (14, 23). The presence of the separators (14, 23) subdivides the evaporator unit into evaporator stages (3, 4).
摘要:
A steam generator includes a substantially horizontal gas conduit (1) to guide a heating gas flow (2) and an evaporator unit positioned at least partially in the horizontal gas conduit for transferring heat from the heating gas to a flow medium which flows through the evaporator unit. The heat transfer section of the evaporator unit of the steam generator is bottom fed, which means that the inlet conduit is arranged at a lower region of the heat transfer section. The outlet conduit is arranged at an upper region. The inlet conduit allows an once through operation of the evaporator section which is necessary to enable operation under supercritical circumstances. The evaporator unit includes at least two evaporator stages (3, 4) which are arranged in a cascade. Each evaporator stage includes a heat transfer section (12, 21) and a separator (14, 23). The presence of the separators (14, 23) subdivides the evaporator unit into evaporator stages (3, 4).
摘要:
A steam water separator includes: —a vessel having a vessel wall delimiting an interior of the vessel, where the vessel is configured to contain steam in a steam zone and water in a water zone in the interior of the vessel, —at least one inlet for introducing steam and/or water in the vessel, —at least one steam outlet for taking steam out of the vessel, —at least one water outlet for taking water out of the vessel, and a wetting device configured to wet in the steam zone an inner surface of the vessel wall.