WO1991015667A1 - Process and assembly for increasing the power of a gas turbine - Google Patents

Process and assembly for increasing the power of a gas turbine Download PDF

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Publication number
WO1991015667A1
WO1991015667A1 PCT/AT1991/000050 AT9100050W WO9115667A1 WO 1991015667 A1 WO1991015667 A1 WO 1991015667A1 AT 9100050 W AT9100050 W AT 9100050W WO 9115667 A1 WO9115667 A1 WO 9115667A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
cooler
bar
gas turbine
cooled
Prior art date
Application number
PCT/AT1991/000050
Other languages
German (de)
French (fr)
Inventor
Herbert Jericha
Ferdinand HÖLLER
Original Assignee
Elin Energieversorgung Gesellschaft M.B.H.
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 Elin Energieversorgung Gesellschaft M.B.H. filed Critical Elin Energieversorgung Gesellschaft M.B.H.
Publication of WO1991015667A1 publication Critical patent/WO1991015667A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/12—Cooling of plants
    • F02C7/14—Cooling of plants of fluids in the plant, e.g. lubricant or fuel
    • F02C7/141—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid
    • F02C7/143—Cooling of plants of fluids in the plant, e.g. lubricant or fuel of working fluid before or between the compressor stages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
    • F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants

Definitions

  • the invention relates to a method for increasing the performance of a gas turbine, preferably in hot, in particular in tropical areas, and an aggregate for performing the method.
  • a gas turbine in its simplest form is an aggregate that consists of a compressor, combustion chamber and the actual turbine.
  • the compressor draws air from the environment and pushes it into the combustion chamber.
  • Gaseous or liquid fuel is burned in the combustion chamber so that hot propellant gases are produced.
  • These hot gases are expanded in the turbine, which both drives the compressor and delivers power.
  • the power generation of gas turbines is therefore based on the principle that less work is required to compress a certain amount of cool combustion air than work is done when the corresponding amount of hot gas is expanded.
  • the object of the invention is therefore to increase the efficiency of gas turbines when they are used in locations with high ambient temperatures.
  • the object is achieved by the invention.
  • This is characterized in that an outside air drawn in with 1 bar, based on sea level and about 30 ° C, preferably 40 ° C, is compressed to about 1.9 bar, that it heats up to about 100 ° C by compression Air is cooled to just above the ambient temperature, preferably about 50 ° C., then this air is released to about 1.04 bar with power recovery and thereby cooled to about 5 ° C., and that this air is fed to a gas turbine as intake air .
  • the invention succeeds in reducing the air humidity before the air enters the gas tube, which leads to a reduction in the compression work to be done. In this way it is possible to significantly increase the efficiency of a gas turbine. Due to the condensation removal, more oxygen gets into the compressor and subsequently into the combustion chamber, which leads to a further increase in performance.
  • an aggregate which consists of an air compressor with two rows of rotor blades rotating in opposite directions with a leading and a secondary guide wheel, a cooler being connected to this air compressor and an air expansion turbine connected downstream of this cooler.
  • this unit ensures that the high increase in performance according to the invention is achieved.
  • the better use of primary energy with the aggregate also makes a valuable contribution against the greenhouse effect and thus for environmental protection.
  • an assembly which consists of an air compressor with two There are rotating rows of blades with leading and trailing impeller, with a cooler downstream of this air compressor and an air expansion turbine downstream of this cooler.
  • An embodiment of the invention provides that the air compressor is driven by an electric motor.
  • the cooler can be operated with feed water.
  • the cooler can be cooled with ambient air.
  • This variant is to be used advantageously if difficulties should arise due to local conditions in the procurement of cooling water.
  • FIG. 1 shows the cross section of a schematic overall arrangement of the unit according to the invention.
  • Air is sucked in via an air intake duct 1, as indicated by an arrow 13, compressed in an air compressor 10 and, as indicated by an arrow 14, via a discharge duct 9 to a cooler and an air expansion turbine connected downstream of the cooler.
  • a cooled air flow re-enters the unit in the direction indicated by an arrow 15 through a supply duct 11 and is fed in the conditioned state in the direction indicated by an arrow 16 through a supply duct 12 to a gas turbine as combustion air.
  • the ** 3 cooling unit consists of an electric motor 6 and two rotating rows of blades 2, 3 with a stator 4 and a stator 5.
  • the compressed air is preferably cooled in feed water or in ambient air. Before this, the air is compressed to a pressure of 1.9 bar; in the cooler, the air is cooled to 50 ° C and then fed to the air expansion turbine. In the air relaxation turbine, the expansion follows a pressure of 1.04 bar and a change to the temperature desired for entry into the gas turbine. To combat nitrogen oxides, more steam can be introduced into the combustion chamber, which results in a further increase in performance.
  • the electric motor 6 drives the rotor blade row 2 via a motor shaft 7.
  • a connecting shaft 8 connects the rotor blade row 3 to a turbine impeller 17; this connecting shaft 8 rotates at the same speed as the electric motor 6, depending on the design of the unit, in the opposite or the same direction as its motor shaft 7.
  • the air ducts of the unit can be welded from sheet metal, since they only have to withstand a pressure of a maximum of 1.9 bar.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

The invention concerns a process and an assembly for increasing the power of a gas turbine in geographical regions with high ambient temperatures. The invention calls for atmospheric air at a pressure of 1 bar and a temperature of about 40 °C to be compressed to about 1.9 bar and cooled again to just over ambient temperature. This air is subsequently allowed to expand to about 1.04 bar and the energy thus released recovered. Cooled by this expansion to about 5 °C, the air is then fed to the intake of the gas turbine. The invention reduces the amount of humidity in the air before the air enters the turbine, thus resulting in a decrease in the work required to compress the air. This leads to a significant increase in efficiency.

Description

Verfahren und Aggregat zur Erhöhung der Leistung einer Gasturbine Process and unit for increasing the performance of a gas turbine
Die Erfindung betrifft ein Verfahren zur Erhöhung der Leistung einer Gasturbine, vorzugsweise in heißen, insbesondere in tropischen Gebieten, sowie ein Aggregat zur Durchführung des Verfahrens.The invention relates to a method for increasing the performance of a gas turbine, preferably in hot, in particular in tropical areas, and an aggregate for performing the method.
Eine Gasturbine in der einfachsten Form ist ein Aggregat, das aus Verdichter, Brennkammer und der eigentlichen Turbine besteht. Dabei wird vom Verdichter Luft aus der Umgebung angesaugt und in die Brennkammer gedrückt. In der Brennkammer wird gasförmiger oder flüssiger Brenn¬ stoff verbrannt, so daß heiße Treibgase entstehen. Diese heißen Gase werden in der Turbine entspannt, welche sowohl den Verdichter antreibt als auch Leistung abgibt. Die Leistungserzeugung von Gasturbinen beruht also auf dem Prinzip, daß für die Verdichtung einer gewissen Menge kühler Verbrennungsluft weniger Arbeit aufgewendet werden muß als bei der Entspannung der entsprechenden Menge heißen Gases Arbeit abgegeben wird.A gas turbine in its simplest form is an aggregate that consists of a compressor, combustion chamber and the actual turbine. The compressor draws air from the environment and pushes it into the combustion chamber. Gaseous or liquid fuel is burned in the combustion chamber so that hot propellant gases are produced. These hot gases are expanded in the turbine, which both drives the compressor and delivers power. The power generation of gas turbines is therefore based on the principle that less work is required to compress a certain amount of cool combustion air than work is done when the corresponding amount of hot gas is expanded.
Bei einer Umgebungstemperatur von etwa 40 °C sind mit typischen Hochleistungs-Gasturbinen lediglich etwa 85 % der Nennleistung erreichbar. Derartige klimatische Bedingungen sind in den Tropen dauernd oder zumindest während längerer Zeiträume gegeben; jedoch sind solche hohen Temperaturen beispielsweise auch in südeuropäi¬ schen Ländern während der Sommerzeit zu erwarten.At an ambient temperature of around 40 ° C, only around 85% of the nominal output can be achieved with typical high-performance gas turbines. Such climatic conditions exist in the tropics continuously or at least for longer periods; however, such high temperatures are also to be expected, for example, in southern European countries during the summer time.
Die Aufgabe der Erfindung besteht daher in einer Wir¬ kungsgradsteigerung von Gasturbinen bei deren Einsatz an Standorten mit hohen Umgebungstemperaturen. Die Aufgabe wird durch die Erfindung gelöst. Diese ist dadurch gekennzeichnet, daß eine mit 1 bar, bezogen auf den Meeresspiegel und etwa 30 °C, vorzugsweise 40 °C, angesaugte Außenluft auf etwa 1,9 bar verdichtet wird, daß diese durch die Komprimierung auf etwa 100 °C er¬ hitzte Luft auf knapp über die Umgebungstemperatur, vorzugsweise etwa 50 °C, abgekühlt wird, danach diese Luft auf etwa 1,04 bar unter Leistungsrückgewinn ent¬ spannt und dadurch auf etwa 5 °C abgekühlt wird, und daß diese Luft als Ansaugluft einer Gasturbine zugeführt wird.The object of the invention is therefore to increase the efficiency of gas turbines when they are used in locations with high ambient temperatures. The object is achieved by the invention. This is characterized in that an outside air drawn in with 1 bar, based on sea level and about 30 ° C, preferably 40 ° C, is compressed to about 1.9 bar, that it heats up to about 100 ° C by compression Air is cooled to just above the ambient temperature, preferably about 50 ° C., then this air is released to about 1.04 bar with power recovery and thereby cooled to about 5 ° C., and that this air is fed to a gas turbine as intake air .
Durch die Erfindung gelingt es, die Luftfeuchtigkeit vor Eintritt der Luft in die Gastubine zu reduzieren, wodurch es zu einer Verringerung der aufzuwendenden Kompressi¬ onsarbeit kommt. Auf diese Weise ist es möglich, den Wirkungsgrad einer Gasturbine wesentlich zu steigern. Durch Kondenswasserausscheidung gelangt zudem mehr Sauerstoff in den Verdichter und in weiterer Folge in die Brennkammer, wodurch eine weitere Leistungssteigerung eintritt.The invention succeeds in reducing the air humidity before the air enters the gas tube, which leads to a reduction in the compression work to be done. In this way it is possible to significantly increase the efficiency of a gas turbine. Due to the condensation removal, more oxygen gets into the compressor and subsequently into the combustion chamber, which leads to a further increase in performance.
Zur Durchführung des Verfahrens ist ein Aggregat vorge¬ sehen, das aus einem Luftverdichter mit zwei gegenläufig rotierenden Laufschaufelreihen mit Vor- und Nachleitrad besteht, wobei diesem Luftverdichter ein Kühler und diesem Kühler eine Luftentspannungsturbine nachgeschaltet ist.To carry out the method, an aggregate is provided which consists of an air compressor with two rows of rotor blades rotating in opposite directions with a leading and a secondary guide wheel, a cooler being connected to this air compressor and an air expansion turbine connected downstream of this cooler.
Der Einsatz dieses Aggregates gewährleistet die Errei¬ chung der erfindungsgemäßen hohen Leistungssteigerung. Durch die bessere Ausnützung von Primärenergie mit dem Aggregates wird zudem ein wertvoller Beitrag gegen den Treibhauseffekt und somit für den Umweltschutz geleistet.The use of this unit ensures that the high increase in performance according to the invention is achieved. The better use of primary energy with the aggregate also makes a valuable contribution against the greenhouse effect and thus for environmental protection.
In einer Weiterbildung der Erfindung ist ein Aggregat vorgesehen, das aus einem Luftverdichter mit zwei gleichläufig rotierenden Laufschaufelreihen mit Vor- und Nachleitrad besteht, wobei diesem Luftverdichter ein Kühler und diesem Kühler eine Luftentspannungsturbine nachgeschaltet ist.In a development of the invention, an assembly is provided which consists of an air compressor with two There are rotating rows of blades with leading and trailing impeller, with a cooler downstream of this air compressor and an air expansion turbine downstream of this cooler.
Damit ist es möglich, gegebenenfalls spezifische Erfor¬ dernisse der Einzelkomponenten eines Aggregates zu berücksichtigen.This makes it possible to take into account, if necessary, specific requirements of the individual components of an assembly.
Eine Ausbildung der Erfindung sieht vor, daß der Luft¬ verdichter von einem Elektromotor angetrieben ist.An embodiment of the invention provides that the air compressor is driven by an electric motor.
Durch diese problemlose Antriebsart wird die Betriebs¬ sicherheit der Anlage erhöht.The operational safety of the system is increased by this problem-free type of drive.
Als zusätzliches Merkmal der Erfindung ist der Kühler mit Speisewasser betreibbar.As an additional feature of the invention, the cooler can be operated with feed water.
Damit werden durch verunreinigtes und zu hartes Wasser verursachte Schäden und somit kostspielige Betriebsstö¬ rungen vermieden.Damage caused by contaminated and too hard water and thus costly operational disturbances are thus avoided.
In einer Fortbildung der Erfindung ist der Kühler mit Umgebungsluft kühlbar ist.In a development of the invention, the cooler can be cooled with ambient air.
Diese Variante ist vorteilhafterweise anzuwenden, wenn sich aufgrund örtlicher Gegebenheiten bei der Beschaffung von Kühlwasser Schwierigkeiten ergeben sollten.This variant is to be used advantageously if difficulties should arise due to local conditions in the procurement of cooling water.
An Hand eines Ausführungsbeispieles soll die Erfindung näher erläutert werden. Dabei zeigt die Fig. den Quer¬ schnitt einer schematischen Gesamtanordnung des erfin¬ dungsgemäßen Aggregates.The invention will be explained in more detail using an exemplary embodiment. The figure shows the cross section of a schematic overall arrangement of the unit according to the invention.
Über einen Luftansaugkanal 1 wird, wie durch einen Pfeil 13 angedeutet, Luft angesaugt, in einem Luftverdichter 10 verdichtet und, wie durch einen Pfeil 14 angedeutet, über einen Ableitkanal 9 einem Kühler und einer dem Kühler nachgeschalteten Luftentspannungsturbine zugeführt. Ein gekühlter Luftstrom tritt in der durch einen Pfeil 15 angedeuteten Richtung durch einen Zuführungskanal 11 wieder in das Aggregat ein und wird im konditionierten Zustand in der durch einen Pfeil 16 angedeuteten Richtung durch einen Zuführungskanal 12 einer Gasturbine als Verbrennungsluft zugeleitet.Air is sucked in via an air intake duct 1, as indicated by an arrow 13, compressed in an air compressor 10 and, as indicated by an arrow 14, via a discharge duct 9 to a cooler and an air expansion turbine connected downstream of the cooler. A cooled air flow re-enters the unit in the direction indicated by an arrow 15 through a supply duct 11 and is fed in the conditioned state in the direction indicated by an arrow 16 through a supply duct 12 to a gas turbine as combustion air.
Da**3 Kühlaggregat besteht aus einem Elektromotor 6 und zwei rotierenden Laufschaufelreihen 2, 3 mit Vorleitrad 4 und Nachleitrad 5. Die verdichtete Luft wird vorzugsweise an Speisewasser oder auch an Umgebungluft gekühlt. Zuvor wird die Luft auf einen Druck von 1,9 bar verdichtet; im Kühler wird die Luft auf 50 °C abgekühlt und dann der Luftentspannungsturbine zugeleitet. In der Luftentspan¬ nungsturbine folgt die Entspannung auf einen Druck von 1,04 bar und eine Änderung auf die für den Eintritt in die Gasturbine gewünschte Temperatur. Zur Bekämpfung von Stickoxiden kann mehr Dampf in die Brennkammer eingelei¬ tet werden, woraus eine weitere Leistungssteigerung resultiert.The ** 3 cooling unit consists of an electric motor 6 and two rotating rows of blades 2, 3 with a stator 4 and a stator 5. The compressed air is preferably cooled in feed water or in ambient air. Before this, the air is compressed to a pressure of 1.9 bar; in the cooler, the air is cooled to 50 ° C and then fed to the air expansion turbine. In the air relaxation turbine, the expansion follows a pressure of 1.04 bar and a change to the temperature desired for entry into the gas turbine. To combat nitrogen oxides, more steam can be introduced into the combustion chamber, which results in a further increase in performance.
Der Elektromotor 6 treibt über eine Motorwelle 7 die Laufschaufelreihe 2. Eine Verbindungswelle 8 verbindet die Laufschaufelreihe 3 mit einem Turbinenlaufrad 17; diese Verbindungswelle 8 rotiert mit derselben Drehzahl wie der Elektromotor 6, und zwar, je nach Ausführung des Aggragates, gegenläufig oder gleichläufig zu dessen Motorwelle 7.The electric motor 6 drives the rotor blade row 2 via a motor shaft 7. A connecting shaft 8 connects the rotor blade row 3 to a turbine impeller 17; this connecting shaft 8 rotates at the same speed as the electric motor 6, depending on the design of the unit, in the opposite or the same direction as its motor shaft 7.
Mit dem erfindungsgemäßen Verfahren werden etwa 50 % der für das Klimaaggregat erforderlichen Kompressorleistung über, die Luftentspannungsturbine rückgewonnen. Es ist somit die Installation eines Elektromotors 6 mit ledig¬ lich der halben ursprünglich errechneten Leistung nötig. Die Verbindungswelle 8 läuft frei und stellt sich auf die richtige Drehzahl ein.With the method according to the invention, about 50% of the compressor power required for the air conditioning unit is recovered via the air relaxation turbine. It is therefore necessary to install an electric motor 6 with only half the originally calculated power. The connecting shaft 8 runs freely and adjusts itself to the correct speed.
Es ist vorteilhaft, daß hier die genormten Schaufeln von Gasturbinenherstellern verwendet werden können. Die Luftführungen des Aggregates können aus Blechen ge¬ schweißt sein, da sie lediglich einem Druck von maximal 1,9 bar standhalten müssen.It is advantageous that the standardized blades from gas turbine manufacturers can be used here. The air ducts of the unit can be welded from sheet metal, since they only have to withstand a pressure of a maximum of 1.9 bar.
Mit dem erfindungsgemäßen Verfahren und Aggregat wird eine wesentliche Wirkungsgradsteiσerung erreicht. Die durch die Erfindung bewirkte bessere Ausnützung von Primärenergie ist nicht nur wirtschaftlich vorteilhaft, sondern bedeutet auch einen wertvollen Beitrag gegen den Treibhauseffekt und somit für den Umweltschutz. A significant increase in efficiency is achieved with the method and unit according to the invention. The better utilization of primary energy brought about by the invention is not only economically advantageous, but also means a valuable contribution against the greenhouse effect and thus for environmental protection.

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Verfahren zur Erhöhung der Leistung einer Gasturbi¬ ne, vorzugsweise in heißen, insbesondere in tropi- sehen Gebieten, dadurch gekennzeichnet, daß eine mit 1 bar, bezogen auf den Meeresspiegel und etwa 30 °C, vorzugsweise 40 °C, angesaugte Außenluft auf etwa 1,9 bar verdichtet wird, daß diese durch die Komprimierung auf etwa 100 °C erhitzte Luft auf knapp über die Umgebungstemperatur, vorzugsweise etwa 50 °C, abgekühlt wird, danach diese Luft auf etwa 1,04 bar unter Leistungsrückgewinn entspannt und dadurch auf etwa 5 °C abgekühlt wird, und daß diese Luft als Ansaugluft einer Gasturbine zugeführt wird.1. A method for increasing the performance of a gas turbine, preferably in hot, in particular in tropical areas, characterized in that an outside air drawn in at 1 bar, based on sea level and about 30 ° C., preferably 40 ° C. about 1.9 bar is compressed, that this air, which has been heated to about 100 ° C. by compression, is cooled to just above the ambient temperature, preferably about 50 ° C., and then this air is relaxed to about 1.04 bar with power recovery and thereby on about 5 ° C is cooled, and that this air is supplied as intake air to a gas turbine.
2. Aggregat zur Durchführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß ein Luft¬ verdichter (10), bestehend aus zwei gegenläufig rotierenden Laufschaufelreihen (2, 3) mit Vor- und Nachleitrad (4, 5) , vorgesehen ist und diesem Luftverdichter (10) ein Kühler und diesem Kühler eine Luftentspannungsturbine nachgeschaltet ist.2. Unit for performing the method according to claim 1, characterized in that an Luft¬ compressor (10), consisting of two counter-rotating rows of blades (2, 3) with a leading and trailing wheel (4, 5), is provided and this air compressor (10) a cooler and this cooler is followed by an air expansion turbine.
3. Aggregat nach Anspruch 1, dadurch gekennzeichnet, daß ein Luftverdichter (10), bestehend aus zwei gleichläufig rotierenden Laufschaufelreihen (2, 3) mit Vor- und Nachleitrad (4, 5) , vorgesehen ist und diesem Luftverdichter (10) ein Kühler und diesem Kühler eine Luftentspannungsturbine nachgeschaltet ist.3. Unit according to claim 1, characterized in that an air compressor (10) consisting of two co-rotating rows of blades (2, 3) with a leading and trailing wheel (4, 5) is provided and this air compressor (10) is a cooler and an air expansion turbine is connected downstream of this cooler.
4. Aggregat nach Anspruch 2, dadurch gekennzeichnet, daß der Luftverdichter (10) von einen Elektromotor (6) angetrieben ist. Aggregat nach einem der Anspruch 2 bis 4, dadurch gekennzeichnet, daß der Kühler mit Speisewasser betreibbar ist.4. Unit according to claim 2, characterized in that the air compressor (10) is driven by an electric motor (6). Unit according to one of claims 2 to 4, characterized in that the cooler can be operated with feed water.
Aggregat nach einem der Anspruch 2 bis 4, dadurch gekennzeichnet, daß der Kühler mit Umgebungsluft kühlbar ist. Unit according to one of claims 2 to 4, characterized in that the cooler can be cooled with ambient air.
PCT/AT1991/000050 1990-04-03 1991-04-03 Process and assembly for increasing the power of a gas turbine WO1991015667A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT77490 1990-04-03
ATA774/90 1990-04-03

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0622535A1 (en) * 1993-04-27 1994-11-02 Air Products And Chemicals, Inc. Use of nitrogen from an air separation unit as gas turbine air compressor feed refrigerant to improve power output
EP0626510A1 (en) * 1993-05-28 1994-11-30 Praxair Technology, Inc. Gas turbine-air separation plant combination
GB2280224A (en) * 1993-07-22 1995-01-25 Ormat Ind Ltd Method of and apparatus for augmenting power produced from gas turbines
US5622044A (en) * 1992-11-09 1997-04-22 Ormat Industries Ltd. Apparatus for augmenting power produced from gas turbines
EP0770771A1 (en) * 1995-10-26 1997-05-02 Asea Brown Boveri Ag Compressor with intercooling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1339734A (en) * 1962-10-25 1963-10-11 Gas turbine with performance independent of ambient temperature
DE2102279A1 (en) * 1970-05-08 1971-11-18 Bergmann Borsig Veb Method and device for operating a compressor, in particular for gas turbine systems
WO1988000282A1 (en) * 1986-07-09 1988-01-14 Engine Technology Limited Supercharged ic engine air cooler
EP0378003B1 (en) * 1989-01-11 1993-06-16 STEWART & STEVENSON SERVICES, INC. Apparatus and method for optimizing the air inlet temperature of gas turbines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1339734A (en) * 1962-10-25 1963-10-11 Gas turbine with performance independent of ambient temperature
DE2102279A1 (en) * 1970-05-08 1971-11-18 Bergmann Borsig Veb Method and device for operating a compressor, in particular for gas turbine systems
WO1988000282A1 (en) * 1986-07-09 1988-01-14 Engine Technology Limited Supercharged ic engine air cooler
EP0378003B1 (en) * 1989-01-11 1993-06-16 STEWART & STEVENSON SERVICES, INC. Apparatus and method for optimizing the air inlet temperature of gas turbines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5622044A (en) * 1992-11-09 1997-04-22 Ormat Industries Ltd. Apparatus for augmenting power produced from gas turbines
EP0622535A1 (en) * 1993-04-27 1994-11-02 Air Products And Chemicals, Inc. Use of nitrogen from an air separation unit as gas turbine air compressor feed refrigerant to improve power output
EP0626510A1 (en) * 1993-05-28 1994-11-30 Praxair Technology, Inc. Gas turbine-air separation plant combination
GB2280224A (en) * 1993-07-22 1995-01-25 Ormat Ind Ltd Method of and apparatus for augmenting power produced from gas turbines
EP0770771A1 (en) * 1995-10-26 1997-05-02 Asea Brown Boveri Ag Compressor with intercooling

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