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1. WO2016067303 - HEAT RECUPERATION SYSTEM FOR THE FAMILY OF SHAFT POWERED AIRCRAFT GAS TURBINE ENGINES

Publication Number WO/2016/067303
Publication Date 06.05.2016
International Application No. PCT/IN2015/000387
International Filing Date 14.10.2015
IPC
F02C 7/10 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, component parts, details or accessories, not provided for in, or of interest apart from, groups F02C1/-F02C6/158; Air intakes for jet-propulsion plants
08Heating air supply before combustion, e.g. by exhaust gases
10by means of regenerative heat-exchangers
F02C 6/18 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
6Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
18using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
F02B 47/08 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
47Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
04the substances being other than water or steam only
08the substances including exhaust gas
CPC
B64D 41/00
BPERFORMING OPERATIONS; TRANSPORTING
64AIRCRAFT; AVIATION; COSMONAUTICS
DEQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
41Power installations for auxiliary purposes
F02C 3/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
3Gas-turbine plants characterised by the use of combustion products as the working fluid
04having a turbine driving a compressor
F02C 6/18
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
6Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus
18using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
F02C 7/047
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
CGAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
7Features, 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
04Air intakes for gas-turbine plants or jet-propulsion plants
047Heating to prevent icing
F05D 2220/323
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2220Application
30in turbines
32in gas turbines
323for aircraft propulsion, e.g. jet engines
F05D 2220/76
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
DINDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
2220Application
70in combination with
76an electrical generator
Applicants
  • JAGTAP SWAPNIL SARJERAO [IN]/[IN]
Inventors
  • JAGTAP SWAPNIL SARJERAO
Priority Data
3419/MUM/201429.10.2014IN
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) HEAT RECUPERATION SYSTEM FOR THE FAMILY OF SHAFT POWERED AIRCRAFT GAS TURBINE ENGINES
(FR) SYSTÈME DE RÉCUPÉRATION DE CHALEUR POUR LA FAMILLE DES TURBINES À GAZ ENTRAÎNÉES PAR ARBRE POUR L'AÉRONAUTIQUE
Abstract
(EN) Heat recuperation system for the family of shaft powered aircraft gas turbine engines, comprise of a shaft powered gas turbine engine with air inlet system, compressor, combustor, exhaust turbines, engine shaft(s) and exhaust system, where the shaft powered aircraft gas turbine engine has an Annular Finned-Tube Heat Exchanger (AFTHE) located in the exhaust system and a heat recovery apparatus functionally coupled to the AFTHE. The AFTHE with working fluid recovers heat from the exhaust gas. The recovered heat vaporizes the working fluid which drives a turbo-expander. The mechanical work developed by the turbo-expander can be used for driving the propulsion systems, compressor or an electric generator. The thermal energy available after expansion work can be used to heat the inlet air into the engine to prevent ice ingestion during icing conditions. This system increases performance and life of the engine, and reduces emissions, heat released to the environment, fuel consumption and fuel cost.
(FR) Cette invention concerne un système de récupération de chaleur pour la famille des turbines à gaz entraînées par arbre pour l'aéronautique, comprenant une turbine à gaz entraînée par arbre avec un système d'admission d'air, un compresseur, une chambre de combustion, des turbines d'échappement, des arbre(s) moteur et un système d'échappement, ladite turbine à gaz entraînée par arbre pour l'aéronautique comprenant un échangeur de chaleur à tube à ailettes annulaire (AFTHE) disposé dans le système d'échappement et un appareil de récupération de chaleur fonctionnellement relié à l'échangeur de chaleur AFTHE. L'échangeur de chaleur AFTHE récupère, au moyen d'un fluide de travail, la chaleur issue des gaz d'échappement. La chaleur récupérée vaporise le fluide de travail qui entraîne un turbodétendeur. Le travail mécanique développé par le turbodétendeur peut être utilisé pour entraîner les systèmes de propulsion, un compresseur ou un générateur électrique. L'énergie thermique disponible après le travail d'expansion peut être utilisée pour chauffer l'air d'admission dans le moteur de sorte à empêcher l'absorption de glace pendant les conditions formation de givre. Le système selon l'invention permet d'améliorer les performances et la durée de vie du moteur, et de réduire les émissions, la chaleur libérée dans l'environnement, la consommation de carburant et coût de carburant.
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