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Performance Analysis Of An Ac Electric Arc Power Supply
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Book Synopsis Performance Analysis of an AC Electric Arc Power Supply by : Richard L. Humphrey
Download or read book Performance Analysis of an AC Electric Arc Power Supply written by Richard L. Humphrey and published by . This book was released on 1964 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of the power supply of the NOL 3 megawatt research arc is predicted by an analysis which represents the arc voltage as a square wave in a series circuit consisting of a voltage source, a limiting reactor, resistance of the substation, and the arc voltage. First an analysis is made assuming that only a limiting reactor is in the arc circuit. Then an analysis with both reactance and resistance present is performed. The results are in good agreement with experimental data from the arc. The need for true rms type electrical indicating instruments of wide frequency response and high accuracy is indicated. (Author).
Book Synopsis Performance Analysis of an Ac Electric Arc Power Supply by : Richard L. Humphrey
Download or read book Performance Analysis of an Ac Electric Arc Power Supply written by Richard L. Humphrey and published by . This book was released on 1964 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt: The performance of the power supply of the NOL 3 megawatt research arc is predicted by an analysis which represents the arc voltage as a square wave in a series circuit consisting of a voltage source, a limiting reactor, resistance of the substation, and the arc voltage. First an analysis is made assuming that only a limiting reactor is in the arc circuit. Then an analysis with both reactance and resistance present is performed. The results are in good agreement with experimental data from the arc. The need for true rms type electrical indicating instruments of wide frequency response and high accuracy is indicated. (Author).
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 836 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Arc Rotation in 4 Ring AC Arc Heater by : Richard L. Humphrey
Download or read book Arc Rotation in 4 Ring AC Arc Heater written by Richard L. Humphrey and published by . This book was released on 1968 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of arc column rotation in a 4 ring ac arc heater without an external magnetic field is presented. Arc column speed is found to depend upon arc current, arc heater pressure, amount and direction of air injection and electrode geometry. The methods used for the experiments and the evaluation of the filmed data are described and justified. Arc heater efficiency and stability has been improved as a result of this work. (Author).
Book Synopsis The NOL 3 Megawatt Research Arc by : Erhard M. Winkler
Download or read book The NOL 3 Megawatt Research Arc written by Erhard M. Winkler and published by . This book was released on 1964 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and initial performance of a 3 MW electric arc air heater are discussed. This arc will be used as a heat source in a true temperature wind tunnel designed, and currently under construction, for operation at Mach numbers between 3 and 12 at supply pressures of 5 to 150 atmospheres and total energy levels up to 5300 Btu/lb. The arc heater operates on 3-phase a.c. Its components, control systems and instrumentation are described in detail. The initial performance studies were carried out using a Mach number 3 nozzle with the flow expanding into the ambient atmosphere. These tests were carried out at supply pressures up to 45 atmospheres. The highest gas energy level obtained was 7700 Btu/lb. (Author).
Book Synopsis Arc Heaters and MHD Accelerators for Aerodynamic Purposes by :
Download or read book Arc Heaters and MHD Accelerators for Aerodynamic Purposes written by and published by . This book was released on 1964 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The NOL Four-ring Three-phase Ac Arc Heater (Mk IV) by : Erhard M. Winkler
Download or read book The NOL Four-ring Three-phase Ac Arc Heater (Mk IV) written by Erhard M. Winkler and published by . This book was released on 1970 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design and performance of a four-ring three-phase ac ARC Heater are described. Successful operation at pressures of 10 to 33 atmospheres, temperatures of 2000 to 5000 degrees K and efficiencies of 25 to 60 percent has been demonstrated. Improvements in heater components will allow pressures of 70 atmospheres to be obtained. (Author).
Book Synopsis Modeling and Parametric Performance Analysis of Field Emission Electric Propulsion by : Dinaol Gadisa
Download or read book Modeling and Parametric Performance Analysis of Field Emission Electric Propulsion written by Dinaol Gadisa and published by GRIN Verlag. This book was released on 2023-03-22 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2023 in the subject Engineering - Aerospace Technology, grade: 3,4, , language: English, abstract: Space electric propulsion is required not only for orbit raising and transfer, position control, and station keeping, but also for spacecraft attitude control, advanced thermal material testing, and end-of-life de-orbiting that is much more fuel efficient than conventional chemical rockets. FEEP thruster is one type of ion propulsion system that provides a low thrust of the order of micro-Newton (μN) to milli-Newton (mN) that is primarily used for precise spacecraft attitude control with extremely high efficiency and small impulse bits based on the exhaust velocity of an ejected ion from a thruster. This thesis report includes a mathematical and 3D CAD model of a FEEP thruster with the overarching goal of investigating and analyzing the thruster’s parametric performance. To accomplish this, a MATLAB program was used to simulate the change in thrust and exhaust velocity over time using various types of liquid metal as a propellant, assuming the fuel mass is equal to the atomic mass of the propellant, the wet mass of the spacecraft is assumed to be 4kg, and the charge of an ion is assumed to be 1.602 × 10−19 while the supplied voltage is held constant at 10 kV. Furthermore, because the porous crown emitter is the heart of the FEEP thruster, its stiffness and topology optimization were investigated. The simulation results show that the thrust value of the FEEP thruster over time ranges from 0.213μN to 211mN during stable ion flow rate and mass expulsion of indium propellant, implying that the result is comparable to realistic FEEP parameters. Furthermore, as expected, increasing the voltage between the emitter and extractor electrodes and decreasing the mass expulsion of the propellant increased the thrust value of the FEEP thruster.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1979 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1965 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research and Technology Program Digest by : United States. National Aeronautics and Space Administration
Download or read book Research and Technology Program Digest written by United States. National Aeronautics and Space Administration and published by . This book was released on with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Research and Technology Program Digest Flash Index by :
Download or read book Research and Technology Program Digest Flash Index written by and published by . This book was released on 1967 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electric Arc Furnace Steelmaking by : Miroslaw Karbowniczek
Download or read book Electric Arc Furnace Steelmaking written by Miroslaw Karbowniczek and published by CRC Press. This book was released on 2021-09-19 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of electric arc furnace steelmaking is evident from the escalated world production seen in steel industry. This book presents systematic and complete details on the current state of knowledge about metallurgical processes carried out in the electric arc furnace. It includes principles of construction of electric arc furnaces, applied construction solutions, and their operations (together with auxiliary/supportive devices). Modern technologies of melting of various grades steel are detailed, considering the participation of secondary metallurgy including theoretical backgrounds of chemical processes and reactions. It contains theoretical analysis and results of laboratory, model, and industrial tests. Features: Covers the practical aspects of electric arc furnace steelmaking including technological process. Discusses the operation issues of an electric arc furnace in a technical and technological context. Presents a systematic and complete knowledge about relevant construction solutions and metallurgical processes. Includes practical industrial benchmark indicators in the scope of equipment and technology. Analyses practical case studies from industry. This book aims at researchers, professionals and graduate students in Metallurgical Engineering, Materials Science, Electric Power Supply, Environmental Engineering, and Mechanical Engineering.
Book Synopsis Energy: a Continuing Bibliography with Indexes by :
Download or read book Energy: a Continuing Bibliography with Indexes written by and published by . This book was released on 1978 with total page 838 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy written by and published by . This book was released on 1977 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the National Institute of Standards and Technology ... Catalog by : National Institute of Standards and Technology (U.S.)
Download or read book Publications of the National Institute of Standards and Technology ... Catalog written by National Institute of Standards and Technology (U.S.) and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 1948 pages. Available in PDF, EPUB and Kindle. Book excerpt:
