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WO2015131940A1 - Installation de stockage d'énergie à haute température et procédé de fonctionnement associé - Google Patents

Installation de stockage d'énergie à haute température et procédé de fonctionnement associé Download PDF

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Publication number
WO2015131940A1
WO2015131940A1 PCT/EP2014/054261 EP2014054261W WO2015131940A1 WO 2015131940 A1 WO2015131940 A1 WO 2015131940A1 EP 2014054261 W EP2014054261 W EP 2014054261W WO 2015131940 A1 WO2015131940 A1 WO 2015131940A1
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WO
WIPO (PCT)
Prior art keywords
circuit
temperature
heat
flow
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2014/054261
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German (de)
English (en)
Inventor
Till Andreas Barmeier
Volker Seidel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to PCT/EP2014/054261 priority Critical patent/WO2015131940A1/fr
Publication of WO2015131940A1 publication Critical patent/WO2015131940A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K5/00—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type
    • F01K5/02—Plants characterised by use of means for storing steam in an alkali to increase steam pressure, e.g. of Honigmann or Koenemann type used in regenerative installation

Definitions

  • the invention relates to a high-temperature energy storage system, comprising a thermal energy storage and four coupled heat transfer circuits, the first circuit is designed as a heat pump with a turbine in the expansion circuit, the second circuit thermally couples the thermal energy storage with the first circuit, a third Circuit thermally couples the thermal energy storage with a fourth circuit and the fourth circuit is designed as a steam power cycle process.
  • the invention relates to a method for operating said high-temperature energy storage system, wherein a heat source in a first circuit, which is designed as a heat pump with a turbine in the expansion circuit, heat is removed, the heat from the first circuit to the thermal energy storage, which in A second circuit is arranged, is transferred, the heat from the thermal energy storage, which is also arranged in a third circuit, is transmitted to a fourth circuit and the heat in the fourth circuit, which is designed as a steam cycle, is converted into mechanical work , State of the art
  • ORC Organic Rankine Cycle
  • Kalina Kalina process
  • ORC and Kaiina plants work with an organic working fluid that has comparatively low boiling temperatures.
  • the cost-effectiveness of ORC systems depends not least on the temperature level of the heat source, the availability of heat over time and the demand for electricity at the time of electricity production.
  • the heat source at temperatures around 100 ° C should be very large due to the low achievable efficiency, so that an ORC or Kaiinastrom can be operated economically.
  • ORC or Kaiinaanlagen are therefore operated with Ab- heat sources with a higher temperature level, for example in conjunction with a biogas engine, in addition to the exhaust gas as a high temperature source of 300 - 500 ° C, the waste heat of the cooling units of 85 - 90 ° C and the charge air offers.
  • Another problem with using a low-temperature heat source is that an ORC or Kaiinastrom can only be operated economically if the waste heat is generated at a time at which sufficiently high prices can be achieved in the electricity market. If the waste heat arrives at an unfavorable time, it will often remain unused for lack of economic usability.
  • WO 2013/072085 A2 discloses a high-temperature energy storage system of the type mentioned above, in which a charging circuit designed as a heat pump stores heat in a high-temperature heat storage, from where it can be fed into a steam power cycle process and converted there into mechanical or electrical energy ,
  • the object of the invention is achieved with a high-temperature energy storage system of the type mentioned, which additionally
  • a coupling with a low-temperature heat source comprises, which is downstream of the turbine in the first circuit and / or
  • the object of the invention is further achieved by a method of the type mentioned, in which
  • the heat comes from a low temperature heat source and after the turbine is transferred / coupled into the first circuit and / or
  • the heat comes from the low-temperature heat source and is transferred / coupled after a feed pump in the fourth cycle.
  • thermal storage for storing electrical energy, such as a thermal bulk storage, comprising a comprehensive heat pump charging circuit and a water-steam cycle comprehensive
  • the (waste) heat from low-temperature heat sources can firstly be used to preheat the expansion machine in the charging circuit and / or secondly to
  • Feedwater preheating of the water-steam cycle can be used during the discharge.
  • This invention thus overcomes two disadvantages of the technologies known from the prior art. On the one hand, it offers a more efficient use of low-temperature heat, and on the other hand it is possible to make the use of waste heat for electricity production independent of the time of availability. In general, a high-temperature energy storage system can store energy in large quantities over several days with little loss.
  • the presented principle of (waste) heat utilization in contrast to the conventional ORC and Kaiinaanlagen the possibility to decouple the power production from the time of availability of the heat source, since the heat can be stored in the thermal storage. It can then be called up as needed at a point in time when it is particularly worthwhile to feed it into the power grid or make other use of it from an economic point of view.
  • the proposed high-temperature energy storage system combined with the use of industrial waste heat can help to increase the efficiency of the industrial plant.
  • geothermal energy or solar heat the efficiency of the thermal storage can be increased and thus freely available thermal energy can be converted into electricity.
  • the (waste) heat can be used with higher efficiency than with an ORC system.
  • An ORC system achieves about 10% efficiency at this temperature level at the current state of the art and economically reasonable cost.
  • the first circuit comprises a motor driven compressor, a downstream first flow of a first heat exchanger, a downstream first flow of a second heat exchanger, a downstream turbine coupled to the compressor, a downstream second flow of the second heat exchanger connected to the second heat exchanger the first flow is heat coupled, and has a return to the compressor when
  • the second circuit has a second flow of the first heat exchanger, which is heat-coupled with its first flow, the downstream thermal energy storage and a return to the second flow of the first heat exchanger, if
  • the third circuit has a second flow of a
  • the fourth cycle has the first flow of the boiler, a downstream turbine, a downstream condenser, a downstream feed pump and a return to the boiler when the high-temperature energy storage system
  • the high-temperature energy storage system comprises a first flow of a fourth heat exchanger, which is connected in the fourth circuit between the feed pump and the first flow of the boiler and which is heat-coupled to a second flow of the fourth heat exchanger, which is connected to said low-temperature heat source.
  • the presented high-temperature energy storage system can be realized with comparatively easily available and proven means.
  • the preparation of the presented high-temperature energy storage system can thus be carried out in an economical manner.
  • the steam boiler has a preheater, an evaporator, a first superheater and a second superheater.
  • the high-temperature energy storage system can be operated very efficiently. At the same time it avoids that usable heat leaves the process, and overall efficiencies over 50% can be achieved in large-scale plants.
  • the high-temperature energy storage system comprises a low-temperature heat accumulator connected or coupled to the low-temperature heat source.
  • the heat of the low-temperature heat source can be temporarily stored in the low-temperature heat accumulator until sufficient energy is available for economical storage in the thermal energy accumulator.
  • the high-temperature energy storage system comprises a connecting line of the low-temperature heat source with the steam boiler. In this way, the steam boiler with the low-temperature heat source can be preheated or kept warm, for example, to bridge the time to restart the system or shorten.
  • the heat of the low-temperature heat source can of course be temporarily stored for preheating the boiler in a low-temperature heat storage, which is emptied only at startup of the discharge circuit.
  • the low-temperature heat source has a temperature level ⁇ 60 ° Celsius. As a result, new fields of application can be developed with the high-temperature energy storage system.
  • the low-temperature heat source has a temperature level ⁇ 300 ° Celsius. It is also favorable if the low-temperature heat source has a temperature level ⁇ 150 ° Celsius. In these temperature ranges, a particularly economical operation of the high-temperature energy storage system is possible. In general, the higher the temperature level of the low-temperature heat source, the more efficient the process. However, the temperature gradient at the second heat exchanger in the charging circuit should be taken into account. It is therefore generally favorable to choose a low-temperature heat source with a temperature level 350 350 ° C. In addition, the number of potentially usable heat sources decreases with increasing temperature levels, ie heat sources with a high temperature level are less common.
  • the invention offers advantages over the known ORC systems and Kaiinaanlagen. It should be noted at this point that the variants disclosed for the device according to the invention and the resulting advantages relate equally to the method according to the invention and vice versa. Brief description of the figures
  • FIG. 1 shows a schematic block diagram of a high-temperature energy storage system
  • Figure 2 shows the first and second circuit of the high-temperature energy storage system of Figure 1 in detail.
  • FIG. 3 shows the third and fourth circuits of the high-temperature energy storage system from FIG. 1 in detail and FIG.
  • FIG. 4 shows a variant of a high-temperature energy storage system with a low-temperature heat storage and an additional heating of the steam boiler.
  • FIG. 1 shows a schematic block diagram of a high-temperature energy storage system 1, which has a thermal
  • Energy storage 2 and four coupled heat transfer circuits 100..400 includes.
  • Figures 2 and 3 show the circuits 100 and 200 and 300 and 400 in an enlarged view.
  • the first circuit 100 is designed as a heat pump with a turbine 105 in the expansion circuit.
  • the first circuit 100 includes a compressor 101 driven by an engine 102, a downstream first flow of a first heat exchanger 103, a downstream first flow of a second heat exchanger 104, the downstream turbine 105 is connected to the compressor 101 via a shaft 106, a downstream second flow of the second heat exchanger 104, which is heat-coupled with its first flow, and a return to the compressor 101.
  • the second circuit 200 of the high-temperature energy storage system 1 couples the thermal energy store 2 to the first circuit 100.
  • the second circuit 200 comprises a second flow of the first heat exchanger 103 heat-coupled with its first flow, the downstream one thermal energy storage 2 and a return to the second flow of the first heat exchanger 103.
  • the third circuit 300 of the high-temperature energy storage system 1 couples the thermal energy storage 2 with a fourth circuit 400.
  • the third circuit 300 in this example comprises a second flow of a steam boiler 401, which with its first
  • the fourth circuit 400 is configured as a steam cycle circuit and in this example concretely includes the first flow of the boiler 401, a downstream turbine 406, a downstream condenser 411, a downstream feed pump 412, a second feed pump 414, and a return to the Steam Boiler 401.
  • the turbine 406 drives a generator 410 in this example.
  • the turbine 406 in the fourth circuit 400 comprises in the illustrated example a plurality of turbine stages 407... 409, which is advantageous but not mandatory for the invention.
  • the steam boiler 401 comprises a preheater 402, an evaporator 403, a first superheater 404 and a second superheater 405.
  • Boilers 401 also omitted.
  • the turbine 406 is often tapped at much more locations (up to ten or more locations) of steam. This particularly increases the efficiency of the fourth cycle 400 (steam cycle). More taps than shown are therefore possible or favorable in principle.
  • the high-temperature energy storage system 1 comprises a coupling 107 with the low-temperature heat source 3, which is connected downstream of the turbine 105 in the first circuit.
  • a first flow of a third heat exchanger 107 which in the first
  • Circuit 100 is connected between the turbine 105 and the second flow of the second heat exchanger 104 and which is heat-coupled with a second flow of the third heat exchanger 107, connected to the low-temperature heat source 3.
  • the high-temperature energy storage system 1 for utilizing the heat of the low-temperature heat source 3 may also include a coupling 413 with the low-temperature heat source 3, which is connected downstream of a feed pump 411 in the fourth circuit.
  • a coupling 413 with the low-temperature heat source 3 which is connected downstream of a feed pump 411 in the fourth circuit.
  • a first flow of a fourth heat exchanger 413 which is connected in the fourth circuit 400 between the feed pump 412 and the first flow of Dampfkes- sels 401 and the second feed pump 414 and which is heat-coupled with a second flow of the fourth heat exchanger 413 is connected to said low-temperature heat source 3.
  • the illustrated high-temperature energy storage system 1 now enables a method for storing energy, wherein a heat source 3 in a first circuit 100, which is designed as a heat pump with a turbine 105 in the expansion circuit, heat is removed,
  • the heat is transferred from the first circuit 100 to the thermal energy storage 2, which is arranged in a second circuit 200,
  • the heat from the low-temperature heat source 3 can be transferred / coupled in after the turbine 105 into the first circuit 100 and / or transferred to the fourth circuit 400 after the feed pump 412.
  • the introduced measures make it possible to lift the heat originating from the low-temperature heat source 3 to a higher temperature level via the first circuit 100 and to store it (via the second circuit 200) in the high-temperature energy storage system 1; to use me to increase the efficiency of the fourth cycle (discharge cycle) 400 and third, the arrival times of the discharge circuit 400 by preheating the boiler 401 to reduce.
  • prevailing pressures and temperatures are given by way of example in the high-temperature energy storage system.
  • the operation of the high-temperature energy storage system 1 is also possible at other pressures and temperatures.
  • a temperature level of 100 ° C. for the low-temperature heat source 3 was assumed in the specific example.
  • the efficiency of the high-temperature energy storage system 1 can see by the measures described at a heat source temperature of 60 to 150 ° C by about 5 to 25% to a total efficiency of the high-temperature energy storage system 1 between 53 and 63% increased.
  • a heat input in the order of 32% (at 60 ° C) and 44% (at 150 ° C) of the electrical discharge power at the same charge and discharge mass flow is necessary.
  • the heat requirement is very high, their use is attractive, since the storage capacity can be adapted to the size of the heat source.
  • the operation of the high-temperature energy storage system 1 but also from a temperature level of the low-temperature heat source 3 ⁇ 60 ° C is advantageously possible. It is also favorable if the low-temperature heat source 3 has a temperature level -S 300 ° Celsius. In addition, it is favorable if the low-temperature heat source has a temperature level -S 150 ° Celsius. In these temperature ranges, a particularly economical operation of the high-temperature energy storage system 1 is possible.
  • the low-temperature heat source 3 may be connected or coupled to a low-temperature heat storage 4.
  • the low-temperature heat source 3 can be connected to the low-temperature heat storage 4 with the aid of valves 5 and 6 or coupled to the first circuit 100 or to the fourth circuit 400.
  • the low-temperature heat source 3 can be connected directly to the low-temperature heat storage 4.
  • the low-temperature heat source 3 can be coupled to the low-temperature heat store 4 via a heat exchanger (not shown).
  • the heat of the low-temperature heat source 3 in the low-temperature heat storage 4 can be temporarily stored until a sufficient sponding amount of energy for economical storage of the same in the thermal energy storage 2 is available.
  • the high-temperature energy storage system 1 may have a connecting line 7, 8 of the low-temperature heat source 3 with the steam boiler 401. In this way, the steam boiler 401 with the low-temperature heat source 3 and the low-temperature heat storage 4 can be preheated.
  • the presented high-temperature energy storage system 1 is particularly efficient if the waste heat leaving the steam boiler 401 is used in the first circuit 100 to preheat the compressor 101 and if the steam cycle is carried out with reheat, as shown here. This avoids that usable heat leaves the process and overall efficiencies over 50% can be achieved in large-scale plants. In general, the high-temperature energy storage system 1 can save energy with low losses over several days in large quantities.
  • the high-temperature energy storage system 1 may also comprise more or fewer components than shown.
  • the couplings / connections with the first circuit 100 or with the fourth circuit 400 shown in FIG. 4 may additionally also include valves in order to be able to use the low-temperature heat source 3 differently.
  • a real high-temperature energy storage system 1 may also include additional but not shown in the figures pumps and other equipment.
  • blower Grclumaschine lowest temperature difference at the heat exchanger
  • This is technically possible, but uneconomical.
  • Fan of 19 ° C results in an input temperature at the energy storage 2 of 534 ° C at the second flow of the first heat exchanger 103, an outlet temperature of 515 ° C and thus a grade of 25 ° C, allowing operation in a more economical way.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Abstract

L'invention concerne une installation de stockage d'énergie à haute température (1). Ladite installation comprend un système de stockage d'énergie (2) thermique et quatre circuits caloporteurs (100… 400) couplés les uns aux autres. Le premier circuit (100) est réalisé sous la forme d'une pompe à chaleur. Le deuxième circuit (200) et le troisième circuit (300) servent au couplage du système de stockage d'énergie (2) thermique au premier circuit (100) ou au quatrième circuit (400), qui est réalisé sous la forme d'un cycle à force de vapeur d'eau. En supplément, l'installation (1) comprend un couplage (107) à une source de chaleur à basse température (3), qui est installée en aval d'une turbine d'expansion (105) dans le premier circuit. En variante ou en supplément, l'installation peut également comprendre un couplage (413) à la source de chaleur à basse température (3), qui est installée en aval d'une pompe d'alimentation (411) dans le quatrième circuit. L'invention concerne également, outre l'installation de stockage d'énergie à haute température (1), un procédé servant à faire fonctionner ladite installation.
PCT/EP2014/054261 2014-03-05 2014-03-05 Installation de stockage d'énergie à haute température et procédé de fonctionnement associé Ceased WO2015131940A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2014/054261 WO2015131940A1 (fr) 2014-03-05 2014-03-05 Installation de stockage d'énergie à haute température et procédé de fonctionnement associé

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Application Number Priority Date Filing Date Title
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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017055505A1 (fr) * 2015-09-30 2017-04-06 Siemens Aktiengesellschaft Système d'échange de chaleur doté d'un dispositif de mouvement de fluide actif de joint pour le mode de charge et pour le mode de décharge et procédé d'échange de chaleur en utilisant le système d'échange de chaleur
CN110206598A (zh) * 2019-06-04 2019-09-06 中国科学院工程热物理研究所 一种基于间接储冷储热的热泵储能发电系统
CN113817488A (zh) * 2021-09-26 2021-12-21 辽宁宝来生物能源有限公司 油系针状焦生产过程中采用的蒸汽预热系统
CN114658504A (zh) * 2022-04-12 2022-06-24 中国科学院工程热物理研究所 一种多级压缩空气储能和热泵储电耦合储能系统
CN114687823A (zh) * 2022-04-14 2022-07-01 中国科学院工程热物理研究所 一种热泵储电与液态空气耦合储能系统
US11480074B1 (en) 2021-04-02 2022-10-25 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11486330B2 (en) 2021-04-02 2022-11-01 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11486370B2 (en) 2021-04-02 2022-11-01 Ice Thermal Harvesting, Llc Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations
US11493029B2 (en) 2021-04-02 2022-11-08 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
DE102021112050A1 (de) 2021-05-07 2022-11-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zum Betreiben einer Speicheranlage, Speicheranlage, Steuerungsprogramm und computerlesbares Medium
US11578706B2 (en) 2021-04-02 2023-02-14 Ice Thermal Harvesting, Llc Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature
US11592009B2 (en) 2021-04-02 2023-02-28 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
US11644015B2 (en) 2021-04-02 2023-05-09 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
US11644014B2 (en) 2021-04-02 2023-05-09 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power in an organic Rankine cycle operation
US11959466B2 (en) 2021-04-02 2024-04-16 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power in an organic Rankine cycle operation
US12180861B1 (en) 2022-12-30 2024-12-31 Ice Thermal Harvesting, Llc Systems and methods to utilize heat carriers in conversion of thermal energy
US12312981B2 (en) 2021-04-02 2025-05-27 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017055505A1 (fr) * 2015-09-30 2017-04-06 Siemens Aktiengesellschaft Système d'échange de chaleur doté d'un dispositif de mouvement de fluide actif de joint pour le mode de charge et pour le mode de décharge et procédé d'échange de chaleur en utilisant le système d'échange de chaleur
CN108139170A (zh) * 2015-09-30 2018-06-08 西门子股份公司 具有用于充能模式并用于放能模式的共同的主动流体运动装置的热交换系统和通过使用热交换系统用于交换热的方法
US11015488B2 (en) 2015-09-30 2021-05-25 Siemens Gamesa Renewable Energy A/S Heat exchange system with a joint active fluid motion device for the charging mode and for the discharging mode and method for exchanging heat by using the heat exchange system
CN110206598A (zh) * 2019-06-04 2019-09-06 中国科学院工程热物理研究所 一种基于间接储冷储热的热泵储能发电系统
US12049875B2 (en) 2021-04-02 2024-07-30 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power in an organic Rankine cycle operation
US11624355B2 (en) 2021-04-02 2023-04-11 Ice Thermal Harvesting, Llc Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations
US12454896B2 (en) 2021-04-02 2025-10-28 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11480074B1 (en) 2021-04-02 2022-10-25 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11486330B2 (en) 2021-04-02 2022-11-01 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11486370B2 (en) 2021-04-02 2022-11-01 Ice Thermal Harvesting, Llc Modular mobile heat generation unit for generation of geothermal power in organic Rankine cycle operations
US11493029B2 (en) 2021-04-02 2022-11-08 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
US12385474B2 (en) 2021-04-02 2025-08-12 Ice Thermal Harvesting, Llc Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature
US12312981B2 (en) 2021-04-02 2025-05-27 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US11542888B2 (en) 2021-04-02 2023-01-03 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
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US11959466B2 (en) 2021-04-02 2024-04-16 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power in an organic Rankine cycle operation
US11971019B2 (en) 2021-04-02 2024-04-30 Ice Thermal Harvesting, Llc Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature
US12146475B2 (en) 2021-04-02 2024-11-19 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power in an organic rankine cycle operation
US12060867B2 (en) 2021-04-02 2024-08-13 Ice Thermal Harvesting, Llc Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on working fluid temperature
US12104553B2 (en) 2021-04-02 2024-10-01 Ice Thermal Harvesting, Llc Systems and methods utilizing gas temperature as a power source
US12110878B2 (en) 2021-04-02 2024-10-08 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
US12135016B2 (en) 2021-04-02 2024-11-05 Ice Thermal Harvesting, Llc Systems for generating geothermal power in an organic Rankine cycle operation during hydrocarbon production based on wellhead fluid temperature
US12140124B2 (en) 2021-04-02 2024-11-12 Ice Thermal Harvesting, Llc Systems and methods for generation of electrical power at a drilling rig
WO2022233582A2 (fr) 2021-05-07 2022-11-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Procédé pour faire fonctionner une installation de stockage, installation de stockage, programme de commande et support lisible par ordinateur
DE102021112050A1 (de) 2021-05-07 2022-11-10 Deutsches Zentrum für Luft- und Raumfahrt e.V. Verfahren zum Betreiben einer Speicheranlage, Speicheranlage, Steuerungsprogramm und computerlesbares Medium
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CN114658504A (zh) * 2022-04-12 2022-06-24 中国科学院工程热物理研究所 一种多级压缩空气储能和热泵储电耦合储能系统
CN114658504B (zh) * 2022-04-12 2023-12-15 中国科学院工程热物理研究所 一种多级压缩空气储能和热泵储电耦合储能系统
CN114687823A (zh) * 2022-04-14 2022-07-01 中国科学院工程热物理研究所 一种热泵储电与液态空气耦合储能系统
US12180861B1 (en) 2022-12-30 2024-12-31 Ice Thermal Harvesting, Llc Systems and methods to utilize heat carriers in conversion of thermal energy

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