WAVELET-BASED ANALYSIS FOR FOULING DIAGNOSIS OF AIRCRAFT HEAT EXCHANGER

Japanese Patent JP2016205810

A

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

JPS63194196	OUTLET PORT TEMPERATURE CONTROLLER FOR HEAT EXCHANGER
WO/1990/015118	PROCESS AND APPARATUS FOR VAPOUR-PHASE CRACKING OF HYDROCARBONS
JPH086996	PROBLEM TO BE SOLVED: To control a cooling water in a refrigerating apparatus and a control apparatus thereof

ANDRE A SILVA
NAYEFF A NAJJAR
SHALABH GUPTA
PAUL M D'ORLANDO
RHONDA D WALTHALL

JP2016081596A

December 08, 2016

April 15, 2016

Click for automatic bibliography generation  

HAMILTON SUNDSTRAND CORP
UNIV CONNECTICUT

F28F27/00; B64D13/08; B64F5/00; F01D25/00; F02C7/00

Hiromichi Kobayashi
Tomioka Kiyoshi

Previous Patent: Premixing pilot nozzle

Next Patent: Radiation synthesis gas condensator