EP2422056A2 - Verfahren und anlage zur gekoppelten solarthermischen strom-, wärme- und kälteerzeugung - Google Patents
Verfahren und anlage zur gekoppelten solarthermischen strom-, wärme- und kälteerzeugungInfo
- Publication number
- EP2422056A2 EP2422056A2 EP09799482A EP09799482A EP2422056A2 EP 2422056 A2 EP2422056 A2 EP 2422056A2 EP 09799482 A EP09799482 A EP 09799482A EP 09799482 A EP09799482 A EP 09799482A EP 2422056 A2 EP2422056 A2 EP 2422056A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- heat
- cooling
- refrigeration
- heating
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000005057 refrigeration Methods 0.000 title claims abstract description 15
- 230000020169 heat generation Effects 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000001816 cooling Methods 0.000 claims abstract description 46
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims abstract description 5
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 3
- 238000010438 heat treatment Methods 0.000 claims description 28
- 230000005611 electricity Effects 0.000 claims description 21
- 238000004378 air conditioning Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 239000002131 composite material Substances 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000010248 power generation Methods 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000011365 complex material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/06—Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure
- F25B1/08—Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure using vapour under pressure
-
- 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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/02—Using steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B27/00—Machines, plants or systems, using particular sources of energy
- F25B27/002—Machines, plants or systems, using particular sources of energy using solar energy
- F25B27/005—Machines, plants or systems, using particular sources of energy using solar energy in compression type systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/46—Conversion of thermal power into mechanical power, e.g. Rankine, Stirling or solar thermal engines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
Definitions
- the present invention relates to a method and a system for coupled solar thermal power, heat and cooling.
- the working fluid is vaporized by connecting a solar panel and the live steam is supplied to a steam screw motor for power generation and on the other a jet compressor for heat and cold generation.
- Coupled power, heat and cooling methods and plants according to the present invention are used in particular for the supply of buildings with electricity, heat for hot water and heating and refrigeration for air conditioning.
- the working medium, preferably water, of a jet compressor is evaporated in a known manner by connecting a solar collector, and the working medium vapor condenses after compression by the jet compressor.
- the cooled condensate is partly used as a refrigerant in the evaporator for cooling the objects via heat exchangers and led to the other part back to the solar collector to provide working medium vapor.
- the present method is characterized in that in addition to the provision of cooling via the steam jet compressor, power is also provided via a steam screw motor and heat for heating and hot water preparation via the condenser.
- steam is generated solar-thermally from a parabolic trough collector or reflector in the forced-circulation or natural circulation principle to provide the drive energy.
- the live steam is supplied in contrast to P. Nores not only a jet compressor for cooling production, but also supplied to a steam screw motor for power generation according to the regulation of a steam steam control valve. This has the advantage that, depending on the cooling or electricity demand, the live steam supply for the steam screw motor can be increased or reduced according to a mass flow control or for the jet compressor according to a bypass control, without having an effect on the heat production for the heating and hot water supply ,
- the present method and the system for coupled electricity, heat and cooling can also be operated in a pure power operation or cooling operation with or without coupled heat supply for heating or hot water.
- at least one steam screw motor, a jet compressor, a condenser, an evaporator and a solar steam generator (parabolic trough collector, reflector), which supplies the energy for generating the live steam, must be present as system components.
- the solar steam generator comprises a parabolic trough collector or a reflector with steam drum and is designed for direct evaporation of the working fluid for the steam screw motor and jet compressor.
- the generation of electricity by means of a steam screw motor has the advantage that a screw motor has a good partial load behavior and is insensitive to changes in steam quality. Load fluctuations between 30% and 100% of the nominal electrical power are easily handled. This is particularly advantageous for a cold or heat-controlled operation of the present system. In addition, results in steam screw motors a low maintenance.
- the operating behavior is much less complicated than in other known combined heat and power plants (CHP systems), since depending on the application for cooling (air conditioning or process cooling) with water or ammonia, a pure substance is used as a working fluid , For this reason, the present CHP plant can be realized without complex materials and plant components.
- the investment costs are therefore low compared to other CHP systems, the electricity, heat and cooling provided purely by a single compact system.
- the method also provides very good dynamic performance with short response times.
- the live steam - according to the required temperature levels in the heating / hot water circuit - in the steam screw motor and / or in the jet compressor is not relaxed to the conventional condenser pressure. This causes a deterioration of the partial efficiencies for the provision of electricity and cooling.
- the given parameters are considered, this results in an overall efficiency of 118% for the coupled solar thermal power, heat and cooling generation, which is more efficient than with conventional power heating and cooling systems.
- the power control of the present system is based solely on a steam control valve, which determines the amount of fresh steam supply for power generation or cooling, without having an impact on the heat supply for heating or hot water.
- the system can also be operated in pure current mode, in which the entire live steam flow through the main steam valve supplied to the steam screw motor and the resulting heat at the condenser - without demand of hot water and heating water - is discharged via a recooling unit to the environment.
- the excess steam can be discharged via the steam screw motor and / or jet compressor on the condenser to the environment. It is more expedient, of course, to buffer the excess steam in the form of thermal energy in the heating / hot water circuit or in the form of cold energy in the cold water circuit.
- a distribution of the drive energy for the provision of electricity and cooling is to be carried out via an appropriate regulation of the live steam fitting and of the throttle body before the evaporator.
- check valves can be provided in the suction line between the jet compressor and the evaporator, which ensure that no re-evaporation can take place in the evaporator from the condenser.
- appropriate storage in the heating / hot water circuit or in the cold water circuit must be provided to counteract the low solar offer.
- FIG. 1 shows an example of the present coupled solar thermal power, heat and cooling plant, which in this embodiment with a steam screw motor 3, a jet apparatus (compressor) 4, an indirect connection to the cold water circuit 27 and the heating AVarmwassernikank 28 is realized.
- the drive energy steam is provided solar thermal and consists of a parabolic trough collector or reflector 11, a steam drum 9, an evaporator pump 10 and from the circulation evaporator circuit 17th
- the solar steam generation 11 (parabolic trough collector, reflector) steam is generated directly from the water circulated by the evaporator pump 10 by solar radiation.
- the steam generated in the steam generator 11 is generated as live steam 18 via a steam dryer 12 and a steam control valve 13 on the one hand a steam screw motor 3 for power generation and on the other as motive steam 20 a jet apparatus (compressor) 4 for heating and cooling fed.
- the steam screw motor converts the enthalpy gradient into mechanical energy and transmits it via a conversion gear 2 to an asynchronous generator 1. After the expansion of the live steam 19, the steam leaves the steam screw motor 3 as exhaust steam 21.
- the jet apparatus 4 supplied as motive steam 20 sucks in accordance with the principle of pulse exchange suction 23 from the cold water heat exchanger 6 at the required temperature and the resulting mixed steam 22 is compressed in the jet apparatus 4 to the condenser pressure level.
- a check valve 15 is installed between the cold water heat exchanger 6 and the jet apparatus 4.
- the compressed mixed steam 22 is condensed together with the relaxed from the steam propulsion engine 3 Abdampfstrom 21 as a condenser stream 24 in the heating / hot water heat exchanger 5, while the usable heat is given to the heating AVarmwassernikmaschinewan 28 and fed to the condenser 7.
- the heating / hot water at a flow temperature of 60 ° C and a return temperature of 50 0 C is provided.
- a partial flow of the condensate 25 is returned via a feedwater pump 8 of the steam drum 9, and is thus the solar steam generation available again.
- feedwater pump 8 When feeding the condensate 25 to the steam drum 9 of the solar steam generator 11 is to pay attention to a continuous control of Kondensatzulaufs 25, otherwise there may be an irregular power, heat and cooling provision. This can be prevented via a speed-controlled feedwater pump 8 in conjunction with a level measurement in the steam drum 9. Between the feedwater pump 8 and the steam drum 9, a check valve 16 is installed.
- the other partial flow in the condenser feed evaporator 26 is fed via a controlled throttle valve 14 to the cold water heat exchanger 6 where it evaporates by removing the heat from the cold water circuit 27 and the suction apparatus 23 is the jet apparatus (compressor) 4 available.
- cold water with a flow temperature of 6 0 C and return temperature of 12 0 C is provided. Due to the high temperature level in the heating- ⁇ Varmingernikmaschineank 28 there is a deterioration of the partial efficiencies for the provision of electricity and cooling, however, results in the present embodiment with the specified parameters, a total efficiency of 118% for the coupled solar thermal power, heat and cooling and thus a higher efficiency than conventional cogeneration plants.
- the present embodiment of FIG. 1 can be operated by regulating the steam control valve 13 even in a pure power operation or cooling operation with or without coupled heat supply for heating or hot water.
- a cold storage in the cold water circuit 27 and a hot water tank in the heating / hot water circuit 28 to provide a continuous Energybereist ein to ensure.
- These stores are not part of the present process and the associated system for coupled solar thermal power, heat and cooling.
- the power generation in the asynchronous generator 1 is used to cover the personal needs for the auxiliary energy of running system (feedwater pump 8, evaporator 10, control, pumps in heating AVarmingernikank 28 and cold water circuit 27 and fans for the eventual recooling of the excess heat at the heating AVarminger- heat exchanger ) and for the supply of an object and / or for feeding into the public power grid.
- Heating AVarm water heat exchanger (cooling water)
- AEE Solar Process Heat, Renewable Energy Consortium (AEE), Journal for a Sustainable Energy Future, 2005-3
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT102009A AT507218B1 (de) | 2009-01-05 | 2009-01-05 | Verfahren und anlage zur gekoppelten solarthermischen strom-, wärme- und kälteerzeugung |
| PCT/AT2009/000454 WO2010075598A2 (de) | 2009-01-05 | 2009-11-23 | Verfahren und anlage zur gekoppelten solarthermischen strom-, wärme- und kälteerzeugung |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2422056A2 true EP2422056A2 (de) | 2012-02-29 |
Family
ID=41809031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09799482A Withdrawn EP2422056A2 (de) | 2009-01-05 | 2009-11-23 | Verfahren und anlage zur gekoppelten solarthermischen strom-, wärme- und kälteerzeugung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2422056A2 (de) |
| AT (1) | AT507218B1 (de) |
| WO (1) | WO2010075598A2 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012122350A1 (en) * | 2011-03-08 | 2012-09-13 | Poerio Wayne | Solar turbo pump - hybrid heating-air conditioning and method of operation |
| DE102012004158A1 (de) * | 2012-03-05 | 2013-09-05 | Bomat Heiztechnik Gmbh | Anlage zur Nutzung von Wärmeenergie |
| CN104196583B (zh) * | 2014-08-22 | 2016-04-06 | 苟仲武 | 一种利用涡流原理的蒸汽动力循环装置及工作方法 |
| CN105464914A (zh) * | 2015-12-17 | 2016-04-06 | 广东五星太阳能股份有限公司 | 一种基于复叠朗肯循环的直膨式太阳能热发电系统 |
| CN105674449B (zh) * | 2016-03-28 | 2019-06-07 | 武汉科技大学 | 一种基于节能型太阳能空气源热泵三联供系统 |
| CN105783079B (zh) * | 2016-04-19 | 2016-11-30 | 普瑞森能源科技(北京)股份有限公司 | 供热变工况热压机组调节方法及系统 |
| CN115076820B (zh) * | 2022-08-22 | 2022-11-25 | 宁波奥克斯电气股份有限公司 | 一种空调器节能系统、控制方法以及空调器 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162934A1 (de) * | 2001-11-29 | 2003-06-18 | Fraunhofer Ges Forschung | Verfahren und Anlage zur solarthermischen Kälteerzeugung |
| DE102006022792B3 (de) * | 2006-05-16 | 2007-10-11 | Erwin Dr. Oser | Umwandlung solarer Wärme in mechanische Energie mit einem Strahlverdichter |
-
2009
- 2009-01-05 AT AT102009A patent/AT507218B1/de active
- 2009-11-23 WO PCT/AT2009/000454 patent/WO2010075598A2/de not_active Ceased
- 2009-11-23 EP EP09799482A patent/EP2422056A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010075598A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| AT507218B1 (de) | 2010-03-15 |
| WO2010075598A2 (de) | 2010-07-08 |
| WO2010075598A3 (de) | 2011-03-31 |
| AT507218A4 (de) | 2010-03-15 |
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