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Wednesday, August 5, 2020 | History

2 edition of A 3-D magnetic analysis of a Stirling convertor linear alternator under load found in the catalog.

A 3-D magnetic analysis of a Stirling convertor linear alternator under load

A 3-D magnetic analysis of a Stirling convertor linear alternator under load

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  • 28 Currently reading

Published by National Aeronautics and Space Administration, Glenn Research Center, Available from NASA Center for Aerospace Information in [Cleveland, Ohio], Hanover, MD .
Written in English

    Subjects:
  • Linear alternators.,
  • Magnetostatics.,
  • Loads (Forces).,
  • Stirling cycle.,
  • Finite element method.,
  • Magnetic moments.,
  • Magnetic flux.

  • Edition Notes

    Other titlesThree D magnetic analysis of a Stirling convertor linear alternator under load.
    StatementSteven M. Geng ... [et al.].
    Series[NASA technical memorandum] -- NASA/TM-2001-211084., NASA technical memorandum -- 211084.
    ContributionsNASA Glenn Research Center.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL18174293M

    The ATR can be used to test W class linear alternators, and is a variable stroke (up to 13mm) and variable frequency (up to Hz) linear dynamometer. The performance of the alternator being tested is typically mapped at steady-state conditions over a range of temperatures, mover amplitudes, and linear alternator loads. was to build a permanent magnet linear synchronous generator prototype for wave energy conversion. The electromagnetic analysis was done by the finite element method. With this analysis, the excitation system was defined and the cogging-forces were calculated. In this project, a double-sided stator was usedFile Size: KB.

    CAD case study, CAD case studies. "A 3-D Magnetic Analysis of a Linear Alternator for a Stirling Power System," in Proceedings from the 35th Intersociety Energy Conversion Engineering Conference, Las Vegas, NV, AIAA, NASA TM, , and "A 3-D Magnetic Analysis of a Stirling Convertor Linear Alternator Under Load," in. UNDERSTANDING NONLINEAR LOADS AND GENERATOR SET INTERACTION Gregory M. Williams, P.E. Caterpillar Inc. () INTRODUCTION Many electrical power applications require continuous and high quality power. Standby diesel-electric generating sets are integral parts of the solution. Standby genset sizing requires an understanding of theFile Size: 41KB.

    A linear alternator is most commonly used to convert reciprocating (i.e. back-and-forth) motion directly into electrical energy. Because of this ability, this type of permanent magnet alternator is suitable for tidal action and production of electricity from that motion. Theory. When a magnet moves in relation to an electromagnetic coil, this changes the magnetic flux passing through the coil, and thus induces the flow of an electric current, which can be used to do work.A linear alternator is most commonly used to convert back-and-forth motion directly into electrical energy. This short-cut eliminates the need for a crank or linkage that would .


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A 3-D magnetic analysis of a Stirling convertor linear alternator under load Download PDF EPUB FB2

A 3-D Magnetic Analysis of a Stirling Convertor Linear Alternator Under Load Steven M. Geng and Gene E. Schwarze Glenn Research Center, Cleveland, Ohio Janis M.

Niedra QSS Group, Inc., Brook Park, Ohio Timothy F. Regan Sest, hTc., Middleburg Heights, Ohio Prepared for the 36th Intersociety Energy Conversion Engineering Conference. the Stirling convertor for space power applications is the development of a lightweight and highly efficient linear alternator.

This paper presents a 3-D finite element method (FEM) approach for evaluating Stirling convertor linear alternators. Preliminary correlations with open-circuit voltage measurements provide an encouraging level of.

Get this from a library. A 3-D magnetic analysis of a Stirling convertor linear alternator under load. [NASA Glenn Research Center.;]. This paper presents a 3-dimensional finite element method (FEM) approach for evaluating Stirling convertor linear alternators.

The model extends a magnetostatic analysis previously reported at the. Of critical importance to the successful development of the Stirling convertor for space power applications is the development of a lightweight and highly efficient linear alternator.

This paper presents a 3-D finite element method (FEM) approach for evaluating Stirling convertor linear. This paper presents a 3-dimensional finite element method (FEM) approach for evaluating Stirling convertor linear alternators. The model extends a magnetostatic analysis previously reported at the 35th Intersociety Energy Conversion Engineering Conference (IECEC) to include the effects of the load current.

They are (1) the Stirling Power Convertor with its linear alternator, (2) the power switching and control electronics to convert the 90 V, 80 Hz alternator output to DC for the use of the.

BibTeX @MISC{Geng01nasa/, author = {Steven M. Geng and Gene E. Schwarze and Janis M. Niedra and Timothy E Regan}, title = {NASA / TM IEC ECCT A 3-D Magnetic Analysis of a Stirling Convertor Linear Alternator Under Load}, year = {}}. The U.S. Department of Energy (DOE), in conjunction with NASA John H.

Glenn Research Center and Stirling Technology Company, are currently developing a Stirling convertor for a Stirling Radioisotope Generator (SRG). NASA Headquarters and DOE have identified the SRG for potential use as an advanced spacecraft power system for future NASA Cited by: Most free piston Stirling engines that use a linear alter-nator are relatively low power levels, and therefore use only a single phase.

Two- and three-phase power gen-eration is possible in a linear generator, but will not be covered in this context. Moving Magnet LA’s: Most Stirling LA’s are moving permanent magnet type, since this configura.

NASA / TM IEC ECCT A 3-D Magnetic Analysis of a Stirling Convertor Linear Alternator Under Load By Steven M. Geng, Gene E. Schwarze, Janis M. Niedra and Timothy E Regan Abstract. A simplified layout of the ASC is shown below. The key technologies in this convertor that enable high efficiency and low mass are the hydrostatic gas bearings, a moving-magnet linear alternator, high-frequency operation, high-temperature hot end materials and fabrication processes, and high-temperature, high-porosity regenerators.

A 3-D Magnetic Analysis of Stirling Convertor Linear Alternator Under Load free download ABSTRACT The NASA Glenn Research Center (GRC), the Department of Energy (DOE), and the Stirling Technology Company (STC) are developing Stirling convertors for Stirling Radioisotope Power Systems (SRPS) to provide electrical power for future NASA deep.

Historical development of the free-piston linear alternators. General Motors This picture looks very familiar, showing an opposed poston engine with an integrated linear alternator. 50 years ago, a patent for this principle was already filed in by Stirling A.

Colgate. The work of GM is based on the Pescara-SIGMA free-piston engine and the history as GM ordered the. Above figure shows the comparison of field analysis between the previous model (2-Air-Gaps) and the new model (1-Air-Gap).

The new model has achieved the same level of performance as shown in right figure with only a half mass of magnets by reducing the magnetic.

The SCORE linear alternator has a target cost of £4 with a magnet assembly target of £ for a W unit. By utilising NdFeB permanent magnets in a Halbach array, considerable functional improvements can be made whilst preserving the low cost mass-produced manufacturing the time of writing, a magnet supplier has estimated the price of NdFeB in very Cited by:   stirling engine WITH linear alternator GENERATOR x3 magnet coils powered by a large.

A 3-D magnetic analysis of a Stirling convertor linear alternator under load A CFD analysis of hydrogen leakage during on-pad purge in the ORION/ARES I shared volume A CFD-based study of the feasibility of adapting an erosion burner rig for examining the effect of CMAS deposition/corrosion on environmental barrier coatings.

This banner text can have markup. web; books; video; audio; software; images; Toggle navigation. Calibration and comparison of the NASA Lewis free-piston Stirling engine model predictions with RE RE free-piston Stirling engine sensitivity test results [microform] / Jeffrey G.

Schreiber, Steven A 3-D magnetic analysis of a Stirling convertor linear alternator under load [microform] / Steven M. Gen. The fundamentals of a permanent magnet linear synchronous generator are closely related to magnetic field and Maxwell equations.

Three of the four equations are related to permanent magnet linear synchronous generators by Ampere’s Law: r⇥H = J + @D @t. () Here J is the volume current density in the circuit. The second term (@D/@t).

A 3-D magnetic analysis of a linear alternator for a Stirling power system. Steven Geng, Gene Schwarze and; Long-term durability analysis of a ,+ hr Stirling power convertor heater head.

Paul Bartolotta, Randy Bowman, Assessment of the free-piston Stirling convertor as a long life power convertor for space. This is ever first Pakistani Free Piston Stirling Linear Alternator A Project for Lahore University Mechanical Engg Students. Built by Ishtiaq Ahmed Shah.

Nick (Real Scientist).