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AIR COOLING TURBINE [10 records]

Record 1 2016-07-11

English

Subject field(s)
  • Cooling and Ventilating Systems
  • Flight Instruments and Equipment (Aeroindustry)
CONT

The bootstrap air-cycle refrigeration system... consists of a primary heat exchanger, a secondary heat exchanger and a cooling turbine.

OBS

The term "bootstrap", as used in air-cycle refrigeration systems, indicates a system in which the pressure of the working fluid(high-pressure air) is raised to a higher level in the compressor section of the cooling turbine unit before expanding in the turbine section.

Key term(s)
  • boot strap air-cycle refrigeration system
  • boot strap cooling system
  • boot strap air cycle machine
  • boot strap air cycle system

French

Domaine(s)
  • Systèmes de refroidissement et de ventilation
  • Instruments et équipement de bord (Constructions aéronautiques)
DEF

Système frigorifique à air utilisé [notamment] dans les avions [où] l'air est d'abord comprimé (premier étage) dans un compresseur centrifuge à grande vitesse et après être passé à travers un refroidisseur-échangeur secondaire «air/air», entre dans une turbine de détente.

OBS

groupe turbo-refroidisseur auto-entretenu : terme uniformisé par le Comité d’uniformisation de la terminologie aéronautique (CUTA) – Opérations aériennes.

Key term(s)
  • système turbo-réfrigérateur auto-entretenu
  • groupe turborefroidisseur auto-entretenu

Spanish

Save record 1

Record 2 2011-05-25

English

Subject field(s)
  • Wind Energy
DEF

A wind turbine that makes water from ambient air.

OBS

The wind turbine blade powers the generator, which in turn powers a cooling compressor that converts gaseous water in atmospheric air into liquid water using a heat exchanger and a humidity condenser.

French

Domaine(s)
  • Énergie éolienne
DEF

Dispositif éolien de production d'eau par condensation, sans rejet de CO2.

Spanish

Save record 2

Record 3 2010-03-15

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

Use of this anti-icing liquid/air heat exchanger, in conjunction with the proper air and liquid flow controls, will permit savings of total cooling air(i. e., engine bleed air) flow by negating the need for a hot air bypass to reheat turbine exhaust air.

Key term(s)
  • hot air by-pass

French

Domaine(s)
  • Propulsion des aéronefs
CONT

Une dérivation d'air chaud mélange de l'air chaud, par l'intermédiaire d'une vanne, au froid pour obtenir le degré de température désiré.

OBS

by-pass : Anglicisme. [...] Recommandation officielle : dérivation, déviation, contournement, circuit de contournement, évitement et la francisation bipasse [...], peu recommandable dans la mesure où pontage est déjà en usage.

Key term(s)
  • by-pass d'air chaud

Spanish

Save record 3

Record 4 2010-03-01

English

Subject field(s)
  • Thermoelectricity and Thermoelectronics
CONT

We are deeply involved in cogeneration plants including biomass and gas turbines. ... Co-Generation Power Island. .... "Power Islands," "Merchant Plants," "Across the Fence Cogeneration," "Third Party Steam Plants," and "Client CHP" are some of the names used to refer to unconventional commercial arrangements for the production and procurement of steam and electrical power to pulp and paper mills. Although the term "Power Island" is often used to describe third party cogeneration facilities, the concept is completely different from an island. The power house that provides the steam and power to the mill has a direct and immediate effect on the pulp mill’s operational stability and uptime as well as the operating costs.

CONT

The IGCC [Integrated Gasification with Combined Cycle] demonstration plant in Puertollano features many advantages compared to conventional coal fired power stations with flue gas desulphurization(FGD) and DeNOx systems :... The plant consists of the following three main units : Power island, gasification island, and oxygen production plant(Air Separation).... The power island. The combined cycle in the Puertollano plant... can be operated both with natural gas and synthesis gas. The main features are : A 200 MWe(ISO) Siemens model V94. 3 gas turbine. A three-pressure level and IP steam reheating heat recovery steam generator designed by Babcock able to additionally superheat the steam generated through raw gas cooling in the gasification. A two casing reheat steam turbine designed by Siemens that delivers roughly 135 MWe. The clean coal gas is burned by the coal gas burners in the combustion chamber of the gas turbine. The sensible heat of extracted air is used for clean gas saturation, low pressure steam production and preheating of impure nitrogen. [Text accompanied by a schematic diagram. ]

CONT

The liberalization of the energy market is demanding more-efficient power plants using cheaper fuels. ... The first option ... is to convert old oil- or existing gas-fired power plants to new combined-cycle power plants. The second option is to convert old oil- or existing gas-fired units to efficient and environmentally friendly power plants that burn cheaper fuels, using the best available technology for the power island and the flue gas treatment equipment.

PHR

Power island turbine generator.

French

Domaine(s)
  • Thermoélectrique et thermoélectronique
OBS

Les ingénieurs français de la firme qui réalisait l'étude d'avant-projet de la centrale du Suroît avaient pour habitude d'utiliser l'expression «îlot puissance». On trouve aussi «îlot de puissance» dans un schéma publié par la compagnie Alstom et «îlot gazéification» [équivalent du terme anglais voisin «gasification island», voir aussi cette fiche] dans un article des Techniques de l'ingénieur portant sur la technologie de gazéification intégrée à un cycle combiné (vol. BE 3, article B8920, avril 1997, paragraphe 4.2.1). [Renseignements obtenus du service linguistique d'Hydro-Québec.]

Spanish

Save record 4

Record 5 2004-05-14

English

Subject field(s)
  • Aircraft Propulsion Systems
CONT

General Electric-$290 million to supply pneumatic products for the GE-Pratt & Whitney Engine Alliance GP7200 engines for the Airbus A380. The package also consists of an Air Turbine Starter and six pneumatic system valves that include an air turbine start valve, high and low pressure turbine clearance control valves, a start transient bleed valve, the core compartment cooling valve and an anti-ice valve for the nacelle.

French

Domaine(s)
  • Propulsion des aéronefs
CONT

soupapes pour systèmes hydrauliques d'avions - soupapes pour systèmes pneumatiques d'avions.

OBS

Systèmes Pneumatiques et Hydrauliques. [...] Auxiliaires pneumatiques : temporisateurs, réducteurs de débit, soupapes d'échappement rapide, connectique.

OBS

Composants pneumatiques. Composants et systèmes fluidiques. Détendeurs. Embrayages pneumatiques. Fonctions logiques. Freins à commande pneumatique. Limiteurs de débit. Limiteurs de pression. Régulateurs de débit. Sélecteurs de circuit. Soupapes de sûreté. Soupapes d'étranglement.

Spanish

Save record 5

Record 6 2003-11-27

English

Subject field(s)
  • Compressors
CONT

The cooling air for all the turbine stationary blading is extracted in the usual external way at four different pressure levels from the compressor flow path.

French

Domaine(s)
  • Compresseurs
CONT

Des fragments d'un matériau de nature similaire ont été trouvés collés aux composants se trouvant sur le passage de la veine du compresseur.

Spanish

Save record 6

Record 7 1987-02-10

English

Subject field(s)
  • Aircraft Systems
CONT

An anti-ice screen, one for each air conditioning system is located in the duct between the cooling turbine and water separator. Access to the anti-ice screen is through the aft accessory compartment.

French

Domaine(s)
  • Circuits des aéronefs
OBS

tamis métallique de détection dégivrage : terme accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 7

Record 8 1986-10-08

English

Subject field(s)
  • Aircraft Systems
CONT

The turbine consists of a turbine wheel and impeller mounted on opposite ends of a shaft, a housing assembly to contain the wheel and impeller, and a turbine discharge duct.

CONT

Air leaving the cooling turbine passes through the anti-ice screen in the turbine discharge duct, through the water separator coalescer bag....

CONT

... Change ... 15. Anti-ice Screen, L/H Turbine Outlet Duct.

French

Domaine(s)
  • Circuits des aéronefs
OBS

gaine de sortie d'air turbine : terme accepté par le Comité d'étude de la terminologie des cartes de travail du DC-9.

Spanish

Save record 8

Record 9 1982-01-07

English

Subject field(s)
  • Aeroindustry
CONT

The CF6-80 [engine] also embodies the ’active clearance control' first used by GE on the F101 powerplant for the Rockwell B-1 bomber, and certificated commercially on the CFM56. This system varies the flow of cooling air, and hence the expansion of the blades, to give optimum clearance around the HP turbine. This has the double benefit of economising on fuel-demanding cooling air and of maintaining close tolerances.

French

Domaine(s)
  • Constructions aéronautiques
CONT

Le réacteur CF6-80 fait (...) appel au procédé de «contrôle actif des jeux», utilisé pour la première fois par General Electric sur le moteur F101 du bombardier B-1 et homologué dans le secteur civil avec le CFM-55. Le procédé consiste à doser le débit d'air de refroidissement des aubes, donc leur dilation longitudinale, de façon à optimiser le jeu radial à la circonférence de la turbine HP. Cette technique a un double intérêt: elle permet à la fois d'économiser l'air de refroidissement qui coûte cher en consommation de carburant, et de maintenir en permanence un jeu minimal.

Spanish

Save record 9

Record 10 1978-12-07

English

Subject field(s)
  • Aeroindustry
CONT

The water injection system sprays water into the cooling airflows to the air turbine. The evaporative cooling effect allows a higher gas temperature to be maintained for a given metal temperature.

French

Domaine(s)
  • Constructions aéronautiques
OBS

Injection d'eau. Dispositif fréquemment utilisé par un avion à turbomoteur afin de refroidir le flux d'air au cours de sa compression. Il se situe dans le cadre général de l'amélioration du cycle thermodynamique d'un turbomoteur (...) et son action s'exerce au niveau du compresseur.

Spanish

Save record 10

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