THE COLINGO SYSTEM DESIGN PHILOSOPHY

1964 ◽  
Author(s):  
James F. Spitzer ◽  
Jr Robertson ◽  
Neuse Joseph G. ◽  
Durwood H.
Keyword(s):  
System Design ◽  
Design Philosophy

Conceptual Design of Small-Sized HTGR System for Steam Supply and Electricity Generation (HTR50S)

2011 ◽  
Author(s):  
Hirofumi Ohashi ◽  
Hiroyuki Sato ◽  
Yujiro Tazawa ◽  
Xing L. Yan ◽  
Yukio Tachibana ◽  
...  
Keyword(s):  
Developing Countries ◽  
High Temperature ◽  
System Design ◽  
Conceptual Design ◽  
Electricity Generation ◽  
District Heating ◽  
Market Potential ◽  
Outlet Temperature ◽  
Design Philosophy ◽  
Commercial Plant

Japan Atomic Energy Agency (JAEA) has started a conceptual design of a small-sized HTGR for steam supply and electricity generation (HTR50S) to deploy the high temperature gas cooled reactor (HTGR) in developing countries at an early date (i.e., in the 2030s). Its reactor power is 50MWt and the reactor outlet temperature is 750°C. It is a first-of-kind of the commercial plant or a demonstration plant of a small-sized HTGR system for steam supply to the industries and the district heating, and electricity generation using a steam turbine. The design philosophy of the HTR50S is to upgrade the performance from the Japanese first HTGR (HTTR) and to reduce the cost for the commercialization by utilizing the knowledge obtained by the HTTR operation and the design of an advanced commercial plant of 600 MWt-class Very High Temperature Reactor (GTHTR300 series). The major specifications of the HTR50S were determined based on its design philosophy. And the targets of the technology demonstration using the HTR50S for the future commercial small-sized HTGR were identified. The system design of HTR50S was performed to offer the capability of electricity generation, cogeneration of electricity and steam for a district heating and industries. The market potential for the small-sized HTGR in the developing countries was evaluated for the application of the electricity, process heat, district heating and pure water production. It was confirmed that there is enough market potential for the small-sized HTGR in the developing countries. This paper described the major specification and system design of the HTR50S and the market potential for the small-sized HTGR in the developing countries.

XFV-12A Propulsion System Development

1976 ◽  
Author(s):  
J. T. Delany ◽  
G. M. Jenkins
Keyword(s):  
System Design ◽  
Development Process ◽  
System Development ◽  
Full Scale ◽  
Propulsion System ◽  
Design And Development ◽  
Plug Nozzle ◽  
Design Philosophy ◽  
Thrust System ◽  
Testing And Evaluation

The XFV-12A total powered lift/thrust system being developed under contract for the U. S. Navy is described. The description includes design and development to date of the inlets, engine integration, the diverter valve with plug nozzle, the lift system augmenter supply ducting, and lift/thrust augmenter hardware. The development process description includes system design philosophy and criteria, analysis, test facilities utilized, model and full-scale testing and evaluation.

Designing for Usability: The Next Iteration is to Reduce Organizational Barriers

1988 ◽  
Vol 32 (1) ◽  
pp. 1-9 ◽  
Author(s):  
John D. Gould
Keyword(s):  
Human Factors ◽  
System Design ◽  
Presidential Address ◽  
Organizational Changes ◽  
Design Philosophy ◽  
Organizational Barriers ◽  
General Terms ◽  
Research Outcomes

This is a draft of the 1988 Human Factors Society Presidential address. A system design philosophy for developing useful, usable systems and products, which we have been advocating since 1980, is first reviewed. The toughest nuts in carrying out the ideas are organizational barriers and resistances. The key ideas in this paper are proposed technical approaches to facilitate organizational changes. The approaches are described in general terms, and their feasibility await successful research outcomes.

Marine Coal-Fired Boilers—State of the Art

1983 ◽  
Vol 20 (01) ◽  
pp. 26-34
Author(s):  
Robert B. Hedges
Keyword(s):  
System Design ◽  
State Of The Art ◽  
The State ◽  
The Past ◽  
Design Philosophy ◽  
Marine Boiler ◽  
Short Time ◽  
Economic Considerations

Owing to economic considerations, there has been renewed interest in the use of coal as a shipboard fuel. To utilize coal aboard ship again required only the application of technology developed and proven ashore over the past 30 years since coal was last used extensively at sea. The development of a modern coal-fired marine boiler was thus possible in a relatively short time. The paper discusses the state of the art of marine coal-fired boilers, including economics, alternative firing systems, boiler performance, design philosophy, and system design.

Preliminary Design Assessments of Pusher Geared Counter-Rotating Open Rotors: Part I — Low Pressure System Design Choices, Engine Preliminary Design Philosophy and Modelling Methodology

2015 ◽  
Author(s):  
Pablo Bellocq ◽  
Iñaki Garmendia ◽  
Vishal Sethi
Keyword(s):  
System Design ◽  
Low Pressure ◽  
Design Parameters ◽  
Preliminary Design ◽  
Simulation Framework ◽  
Pressure System ◽  
Design Philosophy ◽  
Fuel Burn ◽  
Low Pressure System ◽  
The Impact

In this 2-part publication, the impact of the main low pressure system parameters of a pusher counter rotating Geared Open Rotor (GOR) on mission fuel burn, certification noise and emissions is presented for a 160 PAX medium haul class aircraft. Due to their high propulsive efficiency, GORs have the potential to significantly reduce fuel consumption and emissions relative to conventional high bypass ratio turbofans. However, this novel engine architecture presents many design and operational challenges both at engine and aircraft level. The assessment of the impact of the main low pressure preliminary design parameters of GORs on mission fuel burn, certification noise and emissions is necessary at preliminary design stages in order to identify optimum design regions. These assessments may also aid the development process when compromises need to be performed as a consequence of design, operational or regulatory constraints. Part I of this two-part publication describes the main low pressure (LP) system design choices for a GOR as well as the preliminary design philosophy and simulation framework developed for the assessments. Part II presents the assessment studies. The simulation framework described in this paper comprises the following models: engine and aircraft performance, engine mechanical design and weight, engine certification noise and emissions. A novel aspect of the presented simulation framework is that the design point efficiency and the design feasibility of the low pressure components are calculated for each engine design.

Sign in / Sign up

Export Citation Format

Share Document