Abstract :
In attempts to reach airworthiness by performing maintenance actions,
some modifications have been made and observed for their effects, including a
modified cleaning solution used as a tool in compressor wash meant for
maintaining parts cleanliness.
Recognizing these facts, a study on the effectivity of the cleaning solution
used in compressor wash according to standard practice performed on the object
location, as well as the progressivity of compressor fouling and how it would
affect aircraft performance, has been proposed.The entire study was carried out
by tabulating field data in excel worksheets, data calculating using ISF along with
performance simulation based on field conditions using MATLAB-SIMULINK
software.
Positive results as an output of ISF, pressure ratio, and temperature
difference simlulation graphic-displays has been gained as a proof of cleaning
solution effectivity over short period. However negative results of previously
mentioned simulation outputs along with ISF and characteristic measurement of
microemulsion found as a proof of ineffectivity over longer period of operation
and applied procedure. By means of indications, it could be concluded that the
applied modification of compressor wash (in terms of cleaning solution used) has
lower effectivity in prevention of fouling as a trigger of aircraft performance
deterioritation.