PROBLEM TO BE SOLVED: To provide a system and method for estimating a fouling condition of a heat exchanger of an environmental control system (ECS) for an aircraft.SOLUTION: A method and apparatus for estimating a fouling state of a heat exchanger 102 of an aircraft. Training sensor measurements are obtained of a parameter related to operation of the heat exchanger 102 and a wavelet transform is applied to the training sensor measurements to obtain wavelet data. Data reduction is performed on the wavelet data to obtain representative features indicative of the training sensor measurements. A classifier 314 is then trained to assign suitable fouling classes to the representative features. The trained classifier 314 is used on testing sensor measurements from the heat exchanger 102 to assign a fouling class to the testing sensor measurements in order to estimate the fouling state of the heat exchanger 102.SELECTED DRAWING: Figure 1

    【課題】航空機用の環境制御システム(ECS)の熱交換器のファウリング状態を推定するためのシステムおよび方法が提供される。【解決手段】航空機の熱交換器102のファウリング状態を推定する方法および装置。訓練センサ測定値は、熱交換器102の動作に関連したパラメータから取得され、ウェーブレット変換は、ウェーブレットデータを取得するために訓練センサ測定値に適用される。データ削減は、訓練センサ測定値を示す代表的特徴を取得するためにウェーブレットデータ上で実行される。分類機314は、次に、好適なファウリングクラスを代表的特徴に割り当てるために訓練される。訓練された分類機314を熱交換器102からの試験センサ測定値に使用し、熱交換器102のファウリング状態を推定するために試験センサ測定値にファウリングクラスを割り当てる。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    WAVELET-BASED ANALYSIS FOR FOULING DIAGNOSIS OF AIRCRAFT HEAT EXCHANGER


    Additional title:

    航空機用熱交換器のファウリング診断のためのウェーブレットベース分析


    Contributors:

    Publication date :

    2016-12-08


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / F01D Strömungsmaschinen [Kraft- und Arbeitsmaschinen oder Kraftmaschinen], z.B. Dampfturbinen , NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES / F02C Gasturbinenanlagen , GAS-TURBINE PLANTS



    Wavelet-based Fouling Diagnosis of the Heat Exchanger in the Aircraft Environmental Control System

    Silva, Andre / Najjar, Nayeff / Gupta, Shalabh et al. | British Library Conference Proceedings | 2015


    Wavelet-based Fouling Diagnosis of the Heat Exchanger in the Aircraft Environmental Control System

    Silva, Andre / Najjar, Nayeff / D'Orlando, Paul et al. | SAE Technical Papers | 2015


    Heat Exchanger Fouling Diagnosis for an Aircraft Air-Conditioning System

    Najjar, N. / Hare, J. / D Orlando, P. et al. | British Library Conference Proceedings | 2013


    Heat Exchanger Fouling Diagnosis for an Aircraft Air-Conditioning System

    Silva, Andre / Leaper, Gregory / Hare, James et al. | SAE Technical Papers | 2013