FR3098902B1 - Procede iteratif de determination en temps reel du debit d'air preleve sur un moteur d'aeronef - Google Patents

Procede iteratif de determination en temps reel du debit d'air preleve sur un moteur d'aeronef Download PDF

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Publication number
FR3098902B1
FR3098902B1 FR1908211A FR1908211A FR3098902B1 FR 3098902 B1 FR3098902 B1 FR 3098902B1 FR 1908211 A FR1908211 A FR 1908211A FR 1908211 A FR1908211 A FR 1908211A FR 3098902 B1 FR3098902 B1 FR 3098902B1
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FR
France
Prior art keywords
calculation
air flow
air
real time
aircraft engine
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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.)
Active
Application number
FR1908211A
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English (en)
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FR3098902A1 (fr
Inventor
Irène Bujon
Benissa Boujida
Vincent Michel Cabret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Aircraft Engines SAS
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Safran Aircraft Engines SAS
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Publication date
Application filed by Safran Aircraft Engines SAS filed Critical Safran Aircraft Engines SAS
Priority to FR1908211A priority Critical patent/FR3098902B1/fr
Publication of FR3098902A1 publication Critical patent/FR3098902A1/fr
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
    • G01F1/50—Correcting or compensating means
    • 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
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/06—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas
    • F02C6/08—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output providing compressed gas the gas being bled from the gas-turbine compressor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/02—Compensating or correcting for variations in pressure, density or temperature
    • G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
    • G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/301—Pressure
    • F05D2270/3015—Pressure differential pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/306—Mass flow
    • F05D2270/3061—Mass flow of the working fluid

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Measuring Volume Flow (AREA)

Abstract

La présente invention concerne un procédé itératif de détermination en temps réel du débit d'air prélevé sur un moteur d'aéronef (100) par un système de prélèvement d'air (200) du moteur, caractérisé en ce qu'il comporte à chaque N-ième itération, les étapes suivantes : - acquisition de mesures de grandeurs physiques de perte de charge aux bords d’un organe déprimogène (22) ; - (E10) calcul d’une pression statique ; - (E20) calcul d’une pression totale ; - (E30) calcul d’un débit d’air réduit (Wpr) ; - (E40) calcul du débit d’air prélevé (Wp) ; - (E21) calcul d’une vitesse d’écoulement (v) de l’air prélevé dans la canalisation du système de prélèvement d’air (200), ladite vitesse (v) étant déterminée en fonction du débit d’air prélevé Wp calculé lors de l’itération précédente N-1, et de la mesure de température totale acquise lors de l’itération courante N. Figure pour l’abrégé : Fig. 4
FR1908211A 2019-07-19 2019-07-19 Procede iteratif de determination en temps reel du debit d'air preleve sur un moteur d'aeronef Active FR3098902B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1908211A FR3098902B1 (fr) 2019-07-19 2019-07-19 Procede iteratif de determination en temps reel du debit d'air preleve sur un moteur d'aeronef

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1908211 2019-07-19
FR1908211A FR3098902B1 (fr) 2019-07-19 2019-07-19 Procede iteratif de determination en temps reel du debit d'air preleve sur un moteur d'aeronef

Publications (2)

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FR3098902A1 FR3098902A1 (fr) 2021-01-22
FR3098902B1 true FR3098902B1 (fr) 2021-06-18

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114838939B (zh) * 2021-02-01 2025-05-09 中国航发商用航空发动机有限责任公司 大涵道比涡扇发动机放气活门流量计算方法和装置
CN114910120B (zh) * 2022-03-23 2024-06-14 艾肯（江苏）工业技术有限公司 一种高速气流热力参数及流动参数测定的实现方法
CN115468774B (zh) * 2022-09-13 2025-04-04 中国航发沈阳发动机研究所 一种航空发动机外部管路引气流量确定方法
CN121252997B (zh) * 2025-12-03 2026-03-20 康跃科技(山东)有限公司 一种压气机端口温度测量方法及系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2998049B1 (fr) * 2012-11-09 2017-05-05 Snecma Procede et systeme d'estimation de debit d'air preleve sur un moteur
EP2917705B1 (fr) * 2012-11-09 2024-10-16 Safran Aircraft Engines Procede et systeme de determination de debit d'air preleve sur un moteur d'aeronef
FR3074288B1 (fr) * 2017-11-30 2020-06-19 Safran Aircraft Engines Procede et dispositif de mesure du debit d'air de refroidissement d'un carter de turbomachine

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FR3098902A1 (fr) 2021-01-22

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