Hydrazine APU Starter Design


Book Description

The purpose of this program was to design a hot gas motor that would subsequently be used as the prime mover in an advanced aircraft auxiliary power unit starter system. The report describes the APU starter system approach and the design details of the hot gas motor. The hot gas motor is a rotary vane device that would be powered with the decomposition products of a hydrazine-based fuel blend. Two computer models are presented for predicting the thermal-structural and thermal-performance characteristics of the hot gas motor over the required ambient temperature range of -65 to +130 F. (Author).




Hydrazine APU Starter Development


Book Description

The purpose of this program was to develop a hot gas vane motor that would have application to advanced aircraft APU starting. Over the course of the program, the motor design evolved to the point that -65 degrees F starts, hot restarts above 130 degrees F, and multiple starts without refurbishment were possible. Analytical studies evaluated concepts for reducing motor internal friction. (Author).







Hydrazine and Its Derivatives


Book Description

This is the first complete, major reference work on the chemistry of hydrazine in over 30 years. It will cover the production of hydrazine, the preparation of organic hydrazine derivatives, the preparation of other alklhydrazines, the physical properties of hydrazines, hydrazine chemistry, and applications. Includes over 150 tables, 98 illustrations, and 4,400 references.




Design and Development of Aircraft Systems


Book Description

Provides a significant update to the definitive book on aircraft system design This book is written for anyone who wants to understand how industry develops the customer requirement for aircraft into a fully integrated, tested, and qualified product that is safe to fly and fit for purpose. The new edition of Design and Development of Aircraft Systems fully expands its already comprehensive coverage to include both conventional and unmanned systems. It also updates all chapters to bring them in line with current design practice and technologies taught in courses at Cranfield, Bristol, and Loughborough universities in the UK. Design and Development of Aircraft Systems, 3rd Edition begins with an introduction to the subject. It then introduces readers to the aircraft systems (airframe, vehicle, avionic, mission, and ground systems). Following that comes a chapter on the design and development process. Other chapters look at design drivers, systems architectures, systems integration, verification of system requirements, practical considerations, and configuration control. The book finishes with sections that discuss the potential impact of complexity on flight safety, key characteristics of aircraft systems, and more. Provides a holistic view of aircraft system design, describing the interactions among subsystems such as fuel, navigation, flight control, and more Substantially updated coverage of systems engineering, design drivers, systems architectures, systems integration, modelling of systems, practical considerations, and systems examples Incorporates essential new material on the regulatory environment for both manned and unmanned systems Discussion of trends towards complex systems, automation, integration and the potential for an impact on flight safety Design and Development of Aircraft Systems, 3rd Edition is an excellent book for aerospace engineers, researchers, and graduate students involved in the field.




Hot Gas APU (Auxiliary Power Unit) Starter for Advanced Aircraft Applications


Book Description

Design, analysis, and testing has been conducted on a hot gas rotary vane motor for aircraft APU starting over the environmental temperature range of - 65 deg F to + 130 deg F. Experimental testing of the motor was conducted with gaseous nitrogen and with hydrazine based monopropellant hot gas decomposition products. Initial testing indicated problems with excessive gas consumption and binding of parts due to differential expansion. Subsequent revision to the motor configuration reduced gas consumption by 52% compared to the original baseline and eliminated end clearance sensitivity. Analytical studies, verified by test results, indicated the effect of friction coefficient, vane weight, venting, and blade linking on overall internal friction. Design approaches were evolved to minimize overall friction and loads on the vanes. With design revisions implemented to solve initial problems, a motor successfully demonstrated operation at environmental temperatures down to - 65 deg F as well as repeated restart capability. Design criteria have evolved to allow application of the rotary vane motor to specific aircraft starting requirements.




NASA SP.


Book Description




Aeronautical Engineering


Book Description

A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA).




Government Reports Annual Index


Book Description

Sections 1-2. Keyword Index.--Section 3. Personal author index.--Section 4. Corporate author index.-- Section 5. Contract/grant number index, NTIS order/report number index 1-E.--Section 6. NTIS order/report number index F-Z.