Preliminary Weight Estimates for Advanced Dynamic Energy Conversion Systems PDF Download
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Author: George D. Huffman
Publisher:
ISBN:
Category : Energy conversion
Languages : en
Pages : 112
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Book Description
An assessment of working fluids for use in a high-temperature dynamic power conversion system is presented. The method of comparison of the various fluids consists of a preliminary design of the major system components. The results are presented as conversion system weights for the considered fluids, potassium, sodium, lithium, bismuth, and lead, at various values of turbine inlet temperatures. On the basis of the generated data, it has been concluded that only potassium and sodium are practical for use as a working fluid in the temperature range of consideration, 2000 to 4000 R. It is further concluded that potassium and sodium at turbine inlet temperatures from 2800 to 3200 R offer systems of sufficiently low weight to warrant further and more detailed investigations.
Author: George D. Huffman
Publisher:
ISBN:
Category : Energy conversion
Languages : en
Pages : 112
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Book Description
An assessment of working fluids for use in a high-temperature dynamic power conversion system is presented. The method of comparison of the various fluids consists of a preliminary design of the major system components. The results are presented as conversion system weights for the considered fluids, potassium, sodium, lithium, bismuth, and lead, at various values of turbine inlet temperatures. On the basis of the generated data, it has been concluded that only potassium and sodium are practical for use as a working fluid in the temperature range of consideration, 2000 to 4000 R. It is further concluded that potassium and sodium at turbine inlet temperatures from 2800 to 3200 R offer systems of sufficiently low weight to warrant further and more detailed investigations.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 870
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Book Description
Author: Jacob Seiden
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 640
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Book Description
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1586
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Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 856
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Book Description
Author: Paul H. Kutschenreuter (Jr.)
Publisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 38
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Book Description
Author: Marvin G. Toll
Publisher:
ISBN:
Category : Information organization
Languages : en
Pages : 34
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Book Description
This report describes a proposed information transfer program for the selection and approval of components used in Air Force systems. It is intended for use by designers and also by the management group approving what the designers recommend. A method is presented showing how technical characteristics are used as the basis for item selection. When a complete characteristic description is determined, an established index code substitutes numbers for the particular words thus permitting rapid machine search and retrieval. The program employs 1000-ft microfilm facilities for storage and retrieval. It features technical summaries of engineering data as the output for quick determination as to whether the selected items satisfy the requirement.
Author: Philip P. Antonatos
Publisher:
ISBN:
Category : Laminar flow
Languages : en
Pages : 44
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Book Description
Author: Richard H. Herald
Publisher:
ISBN:
Category : Cesium
Languages : en
Pages : 42
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Book Description
The use of liquid alkali metals as a heat transfer medium or motive fluid for power conversion systems has increased significantly in recent years and has created new demands in the area of liquid alkali metal handling technology. Contaminants existing in liquid alkali metal systems may exert deleterious effects on thermophysical properties, corrosivity and handlin characteristics. This paper presents an analytical study on the physicochemical and kinetic aspects of liquid cesium purification, employing the hot gettering technique. The properties and various aspects of handling sodium, potassium, rubidium and cesium are reviewed. Typical sources of contamination are discussed. (Author).
Author: D. A. Guidice
Publisher:
ISBN:
Category : Laser beams
Languages : en
Pages : 46
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Book Description
The concept of using a ''ring'' laser to measure angular rotation is presented. The optical frequencies of the clockwise and the counterclockwise beams traveling around the perimeter of the square ''ring'' depend on their respective optical path lengths which are equal in the absence of rotation. However, angular rotation alters the path lengths, resulting in different frequencies for the two traveling waves. The two waves are optically heterodyned in a photodetector and the resultant beat frequency is directly proportional to the rotation rate of the ''ring.'' An experiment verifying the existence of this phenomenon using a gas laser in the square ''ring'' configuration is described. The physics of mode pulling and various ways to minimize or bypass this problem are discussed in detail. Techniques for artificially separating the frequencies of the two waves by introduction of nonreciprocal elements into the optical path are described. Accuracy limitations caused by mechanical instabilities, excitation variations and inherent stimulated emission line width are examined.
