Improvement of performance of the precooled cycle engine spoiled by icing

Kenya Harada, Tatsuya Kimura, Tetsuya Satou, Nobuhiro Tanatsugu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The effectiveness of a method to improve the precooler performance under frosting condition was investigated by experiments on a sub-scale heat exchanger model. Addition of a methanol proved to be most effective compared with other possible substances in both cases of lower and higher cooling wall temperature than its melting point. Then the effectiveness of the methanol addition was ascertained for the practical condition that means the same tube configuration and flow velocity as the precooler designed for the ATREX engine firing test model. The result showed that the addition of the same quantity as the water vapor could restrain the frost layer from choking the flow in the duration of 300 seconds, which is sufficient time for precooler operation. The required methanol mass along the ATREX engine flight path was estimated to be less than 3% of fuel hydrogen on board. Accordingly, the method came to be promising candidate for practical application.

Original languageEnglish
Title of host publication10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference
Publication statusPublished - 2001
Externally publishedYes
Event10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001 - Kyoto
Duration: 2001 Apr 242001 Apr 27

Other

Other10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001
CityKyoto
Period01/4/2401/4/27

Fingerprint

ice formation
methanol
engines
engine
Methanol
methyl alcohol
Engines
cycles
test firing
hydrogen fuels
flight paths
frost
Flight paths
Hydrogen fuels
wall temperature
heat exchangers
Flow velocity
model test
flow velocity
Water vapor

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering
  • Control and Systems Engineering

Cite this

Harada, K., Kimura, T., Satou, T., & Tanatsugu, N. (2001). Improvement of performance of the precooled cycle engine spoiled by icing. In 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference

Improvement of performance of the precooled cycle engine spoiled by icing. / Harada, Kenya; Kimura, Tatsuya; Satou, Tetsuya; Tanatsugu, Nobuhiro.

10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 2001.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Harada, K, Kimura, T, Satou, T & Tanatsugu, N 2001, Improvement of performance of the precooled cycle engine spoiled by icing. in 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference 2001, Kyoto, 01/4/24.
Harada K, Kimura T, Satou T, Tanatsugu N. Improvement of performance of the precooled cycle engine spoiled by icing. In 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 2001
Harada, Kenya ; Kimura, Tatsuya ; Satou, Tetsuya ; Tanatsugu, Nobuhiro. / Improvement of performance of the precooled cycle engine spoiled by icing. 10th AIAA/NAL-NASDA-ISAS International Space Planes and Hypersonic Systems and Technologies Conference. 2001.
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