Development study on precooler for atrex engine

Kenya Harada; Nobuhiro Tanatsugu; Tetsuya Sato

doi:10.2514/6.1999-4897

Development study on precooler for atrex engine

Kenya Harada, Nobuhiro Tanatsugu, Tetsuya Sato

School of Fundamental Science and Engineering

Research output: Contribution to conference › Paper › peer-review

4 Citations (Scopus)

Abstract

A review of the development of a precooler for the air-turboramjet expander cycle engine (ATREX) is given. Three types of precooler for the ATREX engine ground test model were designed, manufactured and tested under the sea level static condition. The results suggested two problems affecting the precooler performance such as heat transfer rate and air flow pressure drop. One is non-uniformity of the air flow through the tube banks. The other problem is frost formation on the heat transfer surfaces. Concerning the non-uniformity, the shell configuration was modified based on the analysis by CFD calculation. To improve the precooler performance under frosting condition, the new method to add a condensableg as into the air flow was proposed and.examined by experiments on a subscale heat exchanger model. Addition of a small quantity. of ethanol can be effectively restrain the decline of the precooler performance due to frost formation.

Original language	English
DOIs	https://doi.org/10.2514/6.1999-4897
Publication status	Published - 1999
Event	9th International Space Planes and Hypersonic Systems and Technologies Conference, 1999 - Norfolk, United States Duration: 1999 Nov 1 → 1999 Nov 4

Conference

Conference	9th International Space Planes and Hypersonic Systems and Technologies Conference, 1999
Country	United States
City	Norfolk
Period	99/11/1 → 99/11/4

ASJC Scopus subject areas

Space and Planetary Science
Control and Systems Engineering
Aerospace Engineering

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title = "Development study on precooler for atrex engine",

abstract = "A review of the development of a precooler for the air-turboramjet expander cycle engine (ATREX) is given. Three types of precooler for the ATREX engine ground test model were designed, manufactured and tested under the sea level static condition. The results suggested two problems affecting the precooler performance such as heat transfer rate and air flow pressure drop. One is non-uniformity of the air flow through the tube banks. The other problem is frost formation on the heat transfer surfaces. Concerning the non-uniformity, the shell configuration was modified based on the analysis by CFD calculation. To improve the precooler performance under frosting condition, the new method to add a condensableg as into the air flow was proposed and.examined by experiments on a subscale heat exchanger model. Addition of a small quantity. of ethanol can be effectively restrain the decline of the precooler performance due to frost formation.",

author = "Kenya Harada and Nobuhiro Tanatsugu and Tetsuya Sato",

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AU - Tanatsugu, Nobuhiro

AU - Sato, Tetsuya

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N2 - A review of the development of a precooler for the air-turboramjet expander cycle engine (ATREX) is given. Three types of precooler for the ATREX engine ground test model were designed, manufactured and tested under the sea level static condition. The results suggested two problems affecting the precooler performance such as heat transfer rate and air flow pressure drop. One is non-uniformity of the air flow through the tube banks. The other problem is frost formation on the heat transfer surfaces. Concerning the non-uniformity, the shell configuration was modified based on the analysis by CFD calculation. To improve the precooler performance under frosting condition, the new method to add a condensableg as into the air flow was proposed and.examined by experiments on a subscale heat exchanger model. Addition of a small quantity. of ethanol can be effectively restrain the decline of the precooler performance due to frost formation.

AB - A review of the development of a precooler for the air-turboramjet expander cycle engine (ATREX) is given. Three types of precooler for the ATREX engine ground test model were designed, manufactured and tested under the sea level static condition. The results suggested two problems affecting the precooler performance such as heat transfer rate and air flow pressure drop. One is non-uniformity of the air flow through the tube banks. The other problem is frost formation on the heat transfer surfaces. Concerning the non-uniformity, the shell configuration was modified based on the analysis by CFD calculation. To improve the precooler performance under frosting condition, the new method to add a condensableg as into the air flow was proposed and.examined by experiments on a subscale heat exchanger model. Addition of a small quantity. of ethanol can be effectively restrain the decline of the precooler performance due to frost formation.

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