DE10361223A1 - Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium - Google Patents
Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium Download PDFInfo
- Publication number
- DE10361223A1 DE10361223A1 DE2003161223 DE10361223A DE10361223A1 DE 10361223 A1 DE10361223 A1 DE 10361223A1 DE 2003161223 DE2003161223 DE 2003161223 DE 10361223 A DE10361223 A DE 10361223A DE 10361223 A1 DE10361223 A1 DE 10361223A1
- Authority
- DE
- Germany
- Prior art keywords
- energy
- working medium
- heat
- vapor
- blower
- 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- Withdrawn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 39
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 238000010521 absorption reaction Methods 0.000 claims abstract description 4
- 239000002250 absorbent Substances 0.000 claims description 10
- 230000002745 absorbent Effects 0.000 claims description 10
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 3
- 239000011877 solvent mixture Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 2
- 239000003463 adsorbent Substances 0.000 claims 1
- 238000009835 boiling Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 238000005338 heat storage Methods 0.000 claims 1
- 239000003049 inorganic solvent Substances 0.000 claims 1
- 229910001867 inorganic solvent Inorganic materials 0.000 claims 1
- 239000003960 organic solvent Substances 0.000 claims 1
- 230000002040 relaxant effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000009834 vaporization Methods 0.000 claims 1
- 230000008016 vaporization Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 4
- 239000003380 propellant Substances 0.000 description 3
- 239000004604 Blowing Agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002918 waste heat Substances 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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
-
- 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
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/06—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids
- F01K25/065—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using mixtures of different fluids with an absorption fluid remaining at least partly in the liquid state, e.g. water for ammonia
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
Description
Rootsgebläse werden insbesondere als Niederdruck-Entspannungsmotor bei der Nutzung von Abwärme kleiner oder gleich 100°C zum Antrieb von Pumpen und Generatoren genutzt.Become Roots blower especially as a low-pressure expansion engine when using waste heat smaller or equal to 100 ° C used to drive pumps and generators.
Zur Verbesserung der Wirkleistung besteht die Möglichkeit, den Prozess durch Einspritzung von Kondensationsmitteln zu unterstützen. Verwendet man zur Einspritzung Absorptionsmittel, die bei Verwendung von Treibmittelgemischen eine der Komponenten absorbieren, so vermindert sich im Verhältnis zur Druckdifferenz die Temperaturdifferenz der entspannten Dämpfe und die Kondensationsenergie des Treibmittels wird auf einem erhöhten Temperaturniveau gehalten, um somit energieeffiziente Kreisprozesse zu realisieren.to Improving the active power is the opportunity to go through the process To support injection of condensing agents. Used for injection Absorbent, the use of propellant mixtures a absorb the components, so diminished in relation to Pressure difference the temperature difference of the relaxed vapors and the condensation energy of the propellant is at an elevated temperature level held in order to realize energy-efficient cycle processes.
Bei herkömmlichen thermischen Entspannungsprozessen, bei denen kondensierbare Gase, d. h. in der Regel Brüden, durch nachgeschaltete Kondensation gefördert werden, müssen bei den heute üblichen Aggregaten, wie Turbinen, hohe Druckdifferenzen von über 15 bis 200 bar erzeugt werden. Die Brüden dürfen keinen Kondensattropfen enthalten. Rootsgebläse werden als Brüdenverdichter eingesetzt und können bei geeigneter Ausführung mit einer Flüssigkeitseinspritzung betrieben werden. Als Entspannungsmotoren arbeiten sie schon mit einer Druckdifferenz von 500 mbar mit vollem Wirkungsgrad und können im geschlossenen System bei Drücken von 20–0,5 bar abs. eingesetzt werden.at usual thermal expansion processes involving condensable gases, d. H. usually vapors, be promoted by downstream condensation, at the usual today Aggregates, such as turbines, high pressure differences of over 15 to 200 bar are generated. The vapors allowed to do not contain any condensate drops. Roots blowers are called vapor compressors used and can in a suitable design with a liquid injection operate. They already work as relaxation engines a pressure difference of 500 mbar with full efficiency and can in closed system when pressed from 20 to 0.5 bar abs. be used.
Verdampft man Lösemittelgemische, so stellt sich über der Flüssigkeit ein Partialdruckverhältnis ein, das dem Molverhältnis der Komponenten in der Flüssigphase entspricht. Verwendet man azeotrop verdampfende Lösungen, so lassen sich je nach Typ die Verdampfungstemperaturen absenken, so dass sie unter den Verdampfungstemperaturen der einzelnen Komponenten liegen. Absorbiert man aus der Gasphase adiabat eine Komponente, so geht die entsprechende Wärme auf die verbleibende Gasphase über. Der Entzug der Kondensationswärme des Treibmittels kann nach der Entspannung dadurch auf einem erhöhten Temperaturniveau erfolgen.evaporated solvent mixtures, so turns over the liquid a partial pressure ratio, the molar ratio of the components in the liquid phase equivalent. If one uses azeotropic solutions, so you can lower the evaporation temperatures depending on the type so that they are below the evaporation temperatures of the individual components lie. If one absorbs adiabatically a component from the gas phase, so goes the corresponding heat on the remaining gas phase over. The withdrawal of condensation heat the propellant may relax at an elevated temperature level after relaxation respectively.
Während der Verdichtung wird in den Entspannungsraum ein Absorptionsmittel eingespritzt und/oder der Entspannung nachgeschaltet wird Lösemittel in einem mit Absorptionsmittel betriebenen Wäscher niedergeschlagen.During the Compression is injected into the relaxation room, an absorbent and / or the relaxation is followed by solvent in one with absorbent operated scrubbers dejected.
Als Absorptionsmittel werden erfindungsgemäß Öle verwendet, aus denen sich das Lösemittel vollständig wieder austreiben lässt, oder z. B. über ein Membransystem abtrennen lässt.When Absorbents according to the invention oils are used, which make up the solvent completely again lets drift out, or z. B. over Disconnect membrane system.
Das Molverhältnis des Gemisches wird erfindungsgemäß so gewählt, dass der Druck in der Entspannung durch die Reduzierung der Anzahl der in der Gasphase verbleibenden Moleküle stärker abnimmt, als er durch die Erwärmung des Restgases zunimmt.The molar ratio of the mixture is chosen according to the invention such that the pressure in the relaxation by reducing the number of in the gas phase remaining molecules decreases more than it passes through the warming of the residual gas increases.
In
der beigefügten
Abbildung wird die Energiegewinnung mit Brüdenentspannung in einem Rootsgebläse nach
dem erfindungsgemäßen Verfahren
schematisch dargestellt. In einem Verdampfer (
Der
Entspannung nachgeschaltet ist ein Wäscher (
Nach
der Absorption einer Phase wird der restliche Treibdampf in einem
nachgeschalteten Kondensator (
Claims (31)
Priority Applications (18)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003161223 DE10361223A1 (en) | 2003-12-24 | 2003-12-24 | Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium |
| ES04804988.6T ES2624638T3 (en) | 2003-12-22 | 2004-12-22 | Procedure and installation for the transformation of thermal energy produced into mechanical energy |
| PCT/EP2004/053649 WO2005066465A1 (en) | 2003-12-22 | 2004-12-22 | Method and installation for converting heat energy from refrigerating machines |
| EP04804983.7A EP1706598B1 (en) | 2003-12-22 | 2004-12-22 | Method and installation for converting heat energy from refrigerating machines |
| DE202004021185U DE202004021185U1 (en) | 2003-12-22 | 2004-12-22 | Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium |
| EP04804988.6A EP1706599B1 (en) | 2003-12-22 | 2004-12-22 | Method and system for converting heat energy into mechanical energy |
| EP04804984A EP1702139A1 (en) | 2003-12-22 | 2004-12-22 | Device and method for converting heat energy into mechanical energy |
| DE502004004776.9T DE502004004776C5 (en) | 2003-12-22 | 2004-12-22 | METHOD FOR CONVERTING HEAT ENERGY TO MECHANICAL ENERGY WITH A LOW PRESSURE RELAXATION DEVICE |
| EP04804985A EP1706681A1 (en) | 2003-12-22 | 2004-12-22 | Method and system for increasing the temperature of a vaporous working medium |
| ES04816348T ES2293384T3 (en) | 2003-12-22 | 2004-12-22 | PROCEDURE FOR ENERGY CONVERSION ENDS IN MECHANIZED ENERGY WITH A LOW PRESSURE EXPANSION DEVICE. |
| PCT/EP2004/053654 WO2005061858A1 (en) | 2003-12-22 | 2004-12-22 | Method for converting heat energy into mechanical energy with a low-pressure expansion device |
| PCT/EP2004/053651 WO2005061973A1 (en) | 2003-12-22 | 2004-12-22 | Method and system for increasing the temperature of a vaporous working medium |
| PCT/EP2004/053655 WO2005066466A1 (en) | 2003-12-22 | 2004-12-22 | Method and system for converting heat energy into mechanical energy |
| EP04816348A EP1702140B1 (en) | 2003-12-22 | 2004-12-22 | Method for converting heat energy into mechanical energy with a low-pressure expansion device |
| AT04816348T ATE371101T1 (en) | 2003-12-22 | 2004-12-22 | METHOD FOR CONVERTING THERMAL ENERGY INTO MECHANICAL ENERGY USING A LOW PRESSURE RELAXATION DEVICE |
| PCT/EP2004/053650 WO2005061857A1 (en) | 2003-12-22 | 2004-12-22 | Device and method for converting heat energy into mechanical energy |
| US10/583,936 US7726128B2 (en) | 2003-12-22 | 2004-12-22 | Apparatus and method for converting heat energy to mechanical energy |
| US10/583,925 US8132413B2 (en) | 2003-12-22 | 2004-12-22 | Method of transforming heat energy to mechanical energy in a low-pressure expansion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2003161223 DE10361223A1 (en) | 2003-12-24 | 2003-12-24 | Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE10361223A1 true DE10361223A1 (en) | 2005-07-21 |
Family
ID=34683884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2003161223 Withdrawn DE10361223A1 (en) | 2003-12-22 | 2003-12-24 | Method for converting thermal energy into mechanical energy uses low-pressure expansion device to expand vaporous working medium whereby energy is returned to evaporator used to evaporate another working medium |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE10361223A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030283A3 (en) * | 2007-08-31 | 2010-03-18 | Siemens Aktiengesellschaft | Method and device for converting thermal energy of a low temperature heat source into mechanical energy |
| WO2009140944A3 (en) * | 2008-05-17 | 2012-08-09 | Hamm & Dr. Oser Gbr | Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy |
-
2003
- 2003-12-24 DE DE2003161223 patent/DE10361223A1/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030283A3 (en) * | 2007-08-31 | 2010-03-18 | Siemens Aktiengesellschaft | Method and device for converting thermal energy of a low temperature heat source into mechanical energy |
| CN101842557B (en) * | 2007-08-31 | 2013-09-04 | 西门子公司 | Method and device for converting thermal energy of a low temperature heat source into mechanical energy |
| KR101398312B1 (en) | 2007-08-31 | 2014-05-27 | 지멘스 악티엔게젤샤프트 | Method and device for converting thermal energy of a low temperature heat source into mechanical energy |
| WO2009140944A3 (en) * | 2008-05-17 | 2012-08-09 | Hamm & Dr. Oser Gbr | Conversion of pressure energy of gases and vapour at low initial pressures into mechanical energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8139 | Disposal/non-payment of the annual fee |