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Gas-Turbine Regenerators
Regenerative gas turbines are attractive alternatives to diesel engines and spark ignition engines for automobiles and to diesel engines and combined-cycle en gines for power generation. Theory indicates regenerative gas turbines should achieve higher thermal efficiencies than those of diesel engines and combined cycle engines. Further, regenerative gas turbines are potentially lower in cost, require less maintenance, require less space, and pollute less than competitive systems. Regenerators can be used for exhaust-gas heat exchange or for intercooling in gas-turbine systems. As an exhaust-gas heat exchanger, a regenerator recovers heat from the exhaust and uses it to preheat the compressed...
Environment, Transportation, and Housing
For readers who intend to read this volume without reading the first, some in troductory remarks are in orde{about the scope of the work and the strategy used in all five volumes to measure the quality of life. In the first chapter of Volume I, I reviewed the relevant recent literature on social indicators and so cial reporting, and explained all the general difficulties involved in such work. It would be redundant to repeat that discussion here, but there are some fundamental points that are worth mentioning. Readers who fmd this account too brief should consult the longer discussion. The basic question that will be answered in this work is this: Is there a difference in the quality of life in Canada and the United States of America, and if so, in which country is it better? Alternatively, one could put the question thus: If one individual were randomly selected out of Canada and another out of the United States, would there be important qualitative differences, and if so, which one would probably be better off! To simplify matters, I often use the terms 'Canadian' and 'American' as abbreviations for 'a randomly selected resident' of Canada or the United States, respec tively.
Synthesis of Subsonic Airplane Design
Since the education of aeronautical engineers at Delft University of Technology started in 1940 under tae inspiring leadership of Professor H.J. van der Maas, much emphasis has been placed on the design of aircraft as part of the student's curriculum. Not only is aircraft design an optional subject for thesis work, but every aeronautical student has to carry out a preliminary airplane design in the course of his study. The main purpose of this preliminary design work is to enable the student to synthesize the knowledge ob tained separately in courses on aerodynamics, aircraft performances, stability and con trol, aircraft structures, etc. The student's exercises in preliminary design have be...
National Union Catalog
Includes entries for maps and atlases.
