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Esgar, J. B.

Publications and source records attributed to Esgar, J. B..

Views on the impact of HOST

The Hot Section Technology (HOST) Project, which was initiated by NASA Lewis Research Center in 1980 and concluded in 1987, was aimed at improving advanced aircraft engine hot section durability through better technical understanding and more accurate design analysis capability. The project was a multidisciplinary, multiorganizational, focused research effort that involved 21 organizations and 70 research and technology activities and generated approximately 250 research reports. No major hardware was developed. To evaluate whether HOST had a significant impact on the overall aircraft engine industry in the development of new engines, interviews were conducted with 41 participants in the project to obtain their views. The summarized results of these interviews are presented.

Esgar, J. B.

State of technology on hydrogen fueled gas turbine engines

A series of investigations was conducted episodically from the 1950's to the early 1970's to investigate the feasibility and potential problem areas in the use of hydrogen fuel for gas turbine engines. A brief summary and bibliography are presented of the research that has been conducted by NASA, its predecessor NACA, and by industry under U. S. Air Force sponsorship. Although development efforts would be required to provide hydrogen fueled gas turbine engines for aircraft, past research has shown that hydrogen fueled engines are feasible, and except for flight weight liquid hydrogen pumps, there are no problem areas relating to engines requiring significant research.

Esgar, J. B.

High temperature turbines

Conference on high temperature turbines detailing effect of film cooling on blade profile loss

Esgar, J. B.

Insulation concept

Constrictive wrap sealed foam insulation system for liquid hydrogen tanks of rocket boost vehicles

FOAMED MATERIAL

Summary of investigation

Summary of design, construction, test results, and weight comparison of jettisonable and nonjettisonable insulation systems for liquid hydrogen propellant tanks

LIQUID HYDROGEN