EP3060767A1 - Vorrichtung und verfahren für einen orc-kreisprozess mit mehrstufiger expansion - Google Patents
Vorrichtung und verfahren für einen orc-kreisprozess mit mehrstufiger expansionInfo
- Publication number
- EP3060767A1 EP3060767A1 EP15700344.3A EP15700344A EP3060767A1 EP 3060767 A1 EP3060767 A1 EP 3060767A1 EP 15700344 A EP15700344 A EP 15700344A EP 3060767 A1 EP3060767 A1 EP 3060767A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbine
- downstream
- recuperator
- flow
- evaporator
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000008569 process Effects 0.000 title claims abstract description 33
- 239000012530 fluid Substances 0.000 claims description 17
- 238000001704 evaporation Methods 0.000 claims description 5
- 238000011144 upstream manufacturing Methods 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 claims 1
- 238000005382 thermal cycling Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 235000008694 Humulus lupulus Nutrition 0.000 description 2
- 244000025221 Humulus lupulus Species 0.000 description 2
- FNYLWPVRPXGIIP-UHFFFAOYSA-N Triamterene Chemical compound NC1=NC2=NC(N)=NC(N)=C2N=C1C1=CC=CC=C1 FNYLWPVRPXGIIP-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 241000158147 Sator Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 244000145841 kine Species 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- F01K7/02—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 the engines being of multiple-expansion type
- F01K7/025—Consecutive expansion in a turbine or a positive displacement engine
-
- 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
- F01K7/16—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 the engines being only of turbine type
Definitions
- the invention relates to a device for carrying out a thermal cycle according to the principle of Organic Ran ⁇ kine Cycle (ORC) for converting an energy of a heat ⁇ source into mechanical energy, in which an organic Ar ⁇ beitsffen circulates in a cycle.
- the device comprises an evaporator for evaporating the working medium, a downstream turbine, a downstream gels ⁇ genes capacitor, a downstream feed pump and a return to the evaporator.
- a method for performing a thermal cycle ⁇ process according to the principle of the Organic Rankine Cycle for order ⁇ conversion of energy of a heat source into mechanical Ener ⁇ energy, in which circulates a working fluid in a cycle and the cycle an evaporator for Evaporating the Ar ⁇ beitsffens, a downstream turbine, a downstream condenser, a downstream befindge ⁇ ne feed pump and a return to the evaporator comprises.
- Organic Rankine Cycle is a method for operating steam turbines with egg ⁇ nem other working fluid / working fluid than water vapor.
- ORC plants are typically fed by means of heat transfer media (in particular thermal oil), wherein heat is supplied to an ORC working medium for the ORC cycle process via the heat transfer medium, as a result of which it is heated and ultimately is evaporated.
- the vaporized working fluid is expanded in a manner known per se in a turbine, condensed, conveyed to the evaporator and again evaporated.
- Fer ⁇ actuation very large heat exchangers cause a hereditary part of the total cost of an ORC system.
- An object of the invention is thus to provide a verbes ⁇ serte device and an improved method for an ORC cycle.
- the object of the invention is achieved with a device of the type mentioned at the outset a ⁇ , wherein
- the first turbine is designed in several stages and at least two turbine stages each a first and second recuperator is connected downstream or b) that the first turbine, a first recuperator nachge ⁇ switches and at least one further downstream downstream second turbine, a second recuperator is connected downstream.
- the object of the invention is further achieved by a method of the type mentioned, in which the working means a) after passing a first turbine stage of the first turbine, a first recuperator, a second turbine stage and a second recuperator happens or
- the invention is not limited to the use of only two Turbi ⁇ NEN / turbine stages and recuperators, but it can also be more than two turbines / turbine stages and recuperators ⁇ be provided. Further advantageous embodiments and modifications of the invention will become apparent from the dependent claims and from the description in conjunction with the figures. It when the first turbine / turbine stage, a first flow of the first recuperator in the circulation of the working fluid is downstream of downstream and a two ⁇ th flow of said recuperator, which is thermally coupled to the first flow, the feed pump arranged downstream current ⁇ downward is advantageous. In this way, the energy recovered in the first recuperator can be used for re-heating the condensed working fluid.
- a first flow of the second Rekupera ⁇ gate in the circuit of the working medium is nachgela ⁇ Gert downstream and a second flow of said Rekupera ⁇ tors, which is thermally coupled to the first flow, the feed pump downstream downstream.
- the energy generated in the second recuperator for reheating the condensed working medium is ⁇ sets can be.
- the first flow of the second recuperator is the first downstream through ⁇ flow of the first recuperator in the circulation of the working fluid downstream and that the second flow of the second recuperator downstream upstream of the second flow of the first recuperator in the circulation of the working medium is. As a result, a particularly high temperature ⁇ increase of the condensed working medium is achieved.
- first turbine / turbine stage and the second turbine / turbine stage are on a common shaft at ⁇ is ordered. This results in a comparatively simp ⁇ cher mechanical structure and the possibility to use a single generator.
- the dung OF INVENTION ⁇ is not bound to the use of a generator, solar countries the energy generated through the turbines can also be used directly mechanically or umgewan ⁇ punched into another form of energy.
- the first Turbi ⁇ ne / turbine stage and the second turbine / turbine stage are arranged on different shafts.
- the Tur ⁇ turbines / turbine stages can be adapted particularly well received in the cycle, as the turbines / turbine stages with different ⁇ rotary speeds can run.
- the turbine / turbine stages can run with un ⁇ ter Kunststoff speeds, but it is possible to provide only a single output shaft and therefore only a single generator.
- the turbines he ⁇ energy generated can be mechanically used directly or converted to another form of energy.
- FIG. 1 shows a schematic block diagram of an ORC system having a plurality each of a turbine / turbine stage nachge ⁇ switched recuperators and
- FIG. 2 shows an exemplary temperature-entropy diagram of the cyclic process performed with the plant from FIG. 1.
- FIG. 1 shows a schematic block diagram of a device 1 for carrying out a thermal cycle process according to the principle of the Organic Rankine Cycle for converting an energy of a heat source into mechanical energy, in which an organic working medium circulates in a cycle.
- the Apparatus 1 comprises an evaporator 2 for evaporating the working fluid, a downstream first turbine 3, a downstream first recuperator 4, a downstream second turbine 5, a downstream second recuperator 6, a heat exchanger 7, a condenser 8, a feed pump 9 , and a return to the evaporator 2.
- Figure 1 shows. an input coupled to the Turbi ⁇ nen 3, 5 generator 10 and an output coupled to the supply pump 9 ⁇ motor 11 for driving the same.
- the first turbine 3 downstream in the circulation of Hämit ⁇ means of a first flow downstream of the first recuperator. 4 Furthermore, a second flow of said recuperator 4 (namely, the horizontal flow in FIG. 1), which is heat-coupled to the first flow, downstream of the feed pump 9 downstream.
- the second turbine 5 a first flow of the second recuperator 6 in the circuit of the working medium is also analogous downstream current ⁇ downwards, and a second flow of ge ⁇ called recuperator 6, which is thermally coupled to the first flow, the feed pump 9 downstream to ⁇ stored.
- the energy gained in the recuperators 4, 6 can be used in the ORC circuit.
- the first passage of the second recuperator 6 is downstream of downstream of the first flow of the first recuperator 4 in the circuit of the working medium, and the second flow of the second recuperator 6 is the second upstream By ⁇ flow of the first recuperator 4 in the circulation of the working fluid downstream.
- the condensed working fluid using the recuperators 4, 6 are preheated to a relatively high temperature before the evaporator ⁇ Ver.
- first and second door ⁇ bine 3, 5 are arranged on a common shaft and connected via these with the generator 10, whereby the turbines in the turbo 3, 5 obtained mechanical energy is converted into electrical energy ⁇ Ener can.
- this is by no means the only option. It would also be conceivable that the first and the second turbine 3, 5 are arranged on different shafts.
- each of a turbine 3, 5 each Ge ⁇ nerator 10 is driven. It is also conceivable that the waves are coupled together, for example via a transmission. This allows the turbines 3, 5 run at different speeds, but it is possible to provide only one only peo ⁇ ge output shaft and hence only a single genera tor ⁇ 10th
- FIG. 2 now shows an exemplary diagram of the temperature T over the entropy S, on the basis of which the cycle process carried out with the device 1 is explained in greater detail.
- process Z1..Z10 points are plotted in the two graphs.
- each process in the apparatus of point Z1..Z10 equal ⁇ namige process point in the temperature / entropy diagram zugeord ⁇ net.
- the condensed working medium is implemented using the Lucaspum ⁇ pe 9 passed into the second recuperator 6 (process point Z8) and heated there to the process point Z9. Subsequently, the working medium in the first recuperator 4 is heated by the process ⁇ point Z9 on the process point Z10. Thereafter ei ⁇ ne further heating and finally evaporation of the working medium in the evaporator ⁇ 2, thus closing the loop by returning to process point ZI occurs.
- the temperature T9 ie the outlet temperature at the second flow of the second recuperator 6
- the temperature T5 ie the outlet temperature at the first flow of the second Re ⁇ kuperators 6
- the temperature T10 ie the Austrittstem ⁇ perature at the second flow of the first recuperator 4 as ⁇ umum smaller than the temperature T3 (ie the outlet Tempe ⁇ rature at the first flow of the first recuperator 4).
- q45 area equal to the lying below the line connecting the process point Z8 and Z9 surface Q89.
- the areas q45 and q89 indicate the amount of heat transferred in the second recuperator 6.
- the area q23 lying below the connecting line of the process points Z2 and Z3 is equal to the area q910 lying below the connecting line of the process points Z9 and Z10.
- the area q56 below the line connecting the process points Z5 and Z6 also indicates the energy dissipated in the heat exchanger 7 before the condensation of the working medium.
- the surface q67 below the line connecting the process points Z6 and Z7 also indicates the energy dissipated in the capacitor 8 and the area qlOl below the line connecting the process points Z10 and ZI finally the energy supplied in the evaporator 2.
Landscapes
- 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
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014203121.4A DE102014203121B4 (de) | 2014-02-20 | 2014-02-20 | Vorrichtung und Verfahren für einen ORC-Kreisprozess mit mehrstufiger Expansion |
PCT/EP2015/050196 WO2015124325A1 (de) | 2014-02-20 | 2015-01-08 | Vorrichtung und verfahren für einen orc-kreisprozess mit mehrstufiger expansion |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3060767A1 true EP3060767A1 (de) | 2016-08-31 |
EP3060767B1 EP3060767B1 (de) | 2022-06-29 |
Family
ID=52350088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15700344.3A Active EP3060767B1 (de) | 2014-02-20 | 2015-01-08 | Vorrichtung und verfahren für einen orc-kreisprozess mit mehrstufiger expansion |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3060767B1 (de) |
DE (1) | DE102014203121B4 (de) |
PL (1) | PL3060767T3 (de) |
WO (1) | WO2015124325A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT201900004733A1 (it) * | 2019-03-29 | 2020-09-29 | Saipem Spa | Ciclo transcritico re-compresso con post-espansione in applicazioni criogeniche o a basse temperature, e/o con fluidi refrigeranti |
EP4403751A1 (de) * | 2023-01-20 | 2024-07-24 | Wise Open Foundation | Stromerzeugungssystem und stromerzeugungsverfahren |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009503A1 (de) * | 2007-02-25 | 2008-09-18 | Deutsche Energie Holding Gmbh | Mehrstufiger ORC-Kreislauf mit Zwischenenthitzung |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5572871A (en) * | 1994-07-29 | 1996-11-12 | Exergy, Inc. | System and apparatus for conversion of thermal energy into mechanical and electrical power |
US20060112693A1 (en) * | 2004-11-30 | 2006-06-01 | Sundel Timothy N | Method and apparatus for power generation using waste heat |
US8438849B2 (en) | 2007-04-17 | 2013-05-14 | Ormat Technologies, Inc. | Multi-level organic rankine cycle power system |
DE202007012871U1 (de) | 2007-09-14 | 2007-11-15 | Gesellschaft für Motoren und Kraftanlagen GmbH | Vorrichtung zur Energieumwandlung |
US20100319346A1 (en) * | 2009-06-23 | 2010-12-23 | General Electric Company | System for recovering waste heat |
US8752381B2 (en) | 2010-04-22 | 2014-06-17 | Ormat Technologies Inc. | Organic motive fluid based waste heat recovery system |
WO2012159194A1 (en) * | 2011-05-24 | 2012-11-29 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources | High pressure oxy-fuel combustion system (hiprox) bottoming cycle |
US8495878B1 (en) * | 2012-04-09 | 2013-07-30 | Eif Nte Hybrid Intellectual Property Holding Company, Llc | Feedwater heating hybrid power generation |
ITMI20120852A1 (it) * | 2012-05-17 | 2013-11-18 | Exergy Orc S R L | Sistema orc per la produzione di energia tramite ciclo rankine organico |
US9284857B2 (en) | 2012-06-26 | 2016-03-15 | The Regents Of The University Of California | Organic flash cycles for efficient power production |
-
2014
- 2014-02-20 DE DE102014203121.4A patent/DE102014203121B4/de active Active
-
2015
- 2015-01-08 WO PCT/EP2015/050196 patent/WO2015124325A1/de active Application Filing
- 2015-01-08 EP EP15700344.3A patent/EP3060767B1/de active Active
- 2015-01-08 PL PL15700344.3T patent/PL3060767T3/pl unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007009503A1 (de) * | 2007-02-25 | 2008-09-18 | Deutsche Energie Holding Gmbh | Mehrstufiger ORC-Kreislauf mit Zwischenenthitzung |
Also Published As
Publication number | Publication date |
---|---|
EP3060767B1 (de) | 2022-06-29 |
DE102014203121A1 (de) | 2015-08-20 |
PL3060767T3 (pl) | 2022-10-17 |
WO2015124325A1 (de) | 2015-08-27 |
DE102014203121B4 (de) | 2017-03-02 |
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