Last edited by Voodoogar
Saturday, April 25, 2020 | History

3 edition of Oscillating-flow regenerator test rig found in the catalog.

Oscillating-flow regenerator test rig

Oscillating-flow regenerator test rig

final report

by

  • 53 Want to read
  • 36 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va .
Written in English

    Subjects:
  • Heat exchangers.,
  • Hydrostatic pressure.,
  • Oscillating flow.,
  • Pressure vessels.,
  • Regenerators.,
  • Test stands.

  • Edition Notes

    Other titlesOscillating flow regenerator test rig.
    StatementJ.G. Wood.
    Series[NASA contractor report] -- NASA CR-196982.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17000956M

    Fig. 1. Test chamber and oscillating flow generator [14]. Unlike a unidirectional flow, which is stationary or independent of time, the oscillating flow is transient (or time dependent). Since the flow velocity changes with time, there is an acceleration, which also causes inertial forces: v v K F P v v v v t v µ 2 µε ρ ε ε ρFile Size: KB. Regenerator is one o The PTC performance depends on various operating and design parameters. Theoretical and experimental investigation of pressure drop and refrigeration effect in pulse tube cryocooler - AD Badgujar, MD Atrey, Author: AD Badgujar, Atrey.   The Advanced Stirling Convertor (ASC) is being developed by Sunpower, Inc. for NASA’s Glenn Research Center (GRC) with critical technology support tasks led by GRC. The goal of the ASC project, which is funded by NASA’s Science Mission Directorate, is to develop a highly efficient, low mass, reliable power convertor for future Radioisotope Power Systems (RPS). @article{osti_, title = {Effects of sudden expansion and contraction flow on pressure drops in the Stirling engine regenerator}, author = {Hamaguchi, K and Yamashita, I and Hirata, K}, abstractNote = {The flow losses in the regenerators greatly influence the performance of the Stirling engine. The losses mainly depend on fluid friction through the regenerator matrix, but are also.


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Oscillating-flow regenerator test rig Download PDF EPUB FB2

Oscillating-Flow Regenerator Test Rig: Hardware and Theory With Derived Correlations for Screens and Felts D. Gedeon Gedeon Associates Athens, Ohio and J.G.

Wood Wood Experimental Albany, Ohio February Prepared for Lewis Research Center Under Grant NAG Nat/onal Aeronautics and Space Administration. Oscillating-flow regenerator test rig final report by John George Wood.

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va. rig designed by Sunpower Inc.

for NASA-Lewis. This pressure drop test rig was used to perform extensive oscillating flow pressure drop testing on heat exchangers and regenerators typical to those used in Stifling engines. Details of the original pressure drop test rig can be found in reference [2].

The basic rig is based on a variable stroke and variable frequency linear drive motor. Audio Books & Poetry Community Audio Computers & Technology Music, Arts & Culture News & Public Affairs Non-English Audio Spirituality & Religion.

Librivox Free Audiobook. Podcasts. Featured software All software latest This Just In Old School Emulation MS-DOS Games Historical Software Classic PC Games Software Library. The regenerator test rig was designed and built to measure the pressure drop of the robust foil regenerator under the oscillating flow condition.

Based on the data from the pressure transducers and linear displacement transducer, the friction coefficient was derived. Oscillating-flow regenerator test rig book result shows that the friction coefficient of the regenerator. Regenerator Envelope (Canister or Volume) Configurations. Regenerator Porous Material Structures.

Random-Fiber Regenerators—Actual Scale. Introduction. NASA/Sunpower Oscillating-Flow Test Rig and Test-Rig Modifications. Random-Fiber Test Results. Theoretical Investigations.

Computational Fluid Dynamics (CFD) Simulation for Cylinders in Cross-Flow. Oscillating-flow regenerator test rig. By D. Gedeon and J.

Wood. Abstract. This report summarizes work performed in setting up and performing tests on a regenerator test rig. An earlier status report presented test results, together with heat transfer correlations, for four regenerator samples (two woven screen samples and two felt metal Author: D.

Gedeon and J. Wood. The hardware-in-the-loop simulator implemented in an oscillating-flow test-rig appears as an innovative, integrated solution for turbine testing in realistic operating flow conditions, but in a. The proposed model will be used to estimate these factors. In a second part, the correlations proposed in the literature (Tanaka ; Gedeon and Wood Oscillating-flow regenerator test rig: hardware and theory with derived correlations for screens and felts.

NASA CR, ) to study the turbulent flow are applied to the gamma-type Author: Ramla Gheith, Houda Hachem, Fethi Aloui, Sassi Ben Nasrallah.

Behind these results lies an oscillating-flow test rig, which measures pumping dissipation and thermal energy transport in sample matrices, and several stages of data-reduction software, which correlate instantaneous values for the above dimensionless groups.

Oscillating-Flow Regenerator Test Rig: Hardware and Theory With Derived Correlations for Screens and Felts. By D. Gedeon and J. Wood. Abstract. A number of wire mesh and metal felt test samples, with a range of porosities, yield generic correlations for friction factor, Nusselt number, enhanced axial conduction ratio, and overall heat flux Author: D.

Gedeon and J. Wood. Get this from a library. Oscillating-flow regenerator test rig: final report. [J G Wood; United States. National Aeronautics and Space Administration.]. Another test rig is built to study the pressure drop of regenerator in an oscillating flow, and the schematic of experimental apparatus is shown in Fig.

2, consisting Oscillating-flow regenerator test rig book a test section, a gas supplement system and a drive mechanism. Gas flow is driven by two by: Get this from a library.

Oscillating-flow regenerator test rig: woven screen and metal felt results. [D Gideon; J G Wood; United States. National Aeronautics and Space Administration.].

Fig. 1 shows a schematic diagram of the experimental apparatus, which is composed of a regenerator bed, two shell-and-tube heat exchangers, check valves and a pumping system consisting of a displacer, a crank disc and a motor.

The dimensions of the acetal resin regenerator bed housing are mm (internal diameter) × mm (length), along which seven feed-through orifices have been drilled Cited by: Summary. Stirling Convertor Regenerators addresses the latest developments and future possibilities in the science and practical application of Stirling engine regenerators and technology.

Written by experts in the vanguard of alternative energy, this invaluable resource presents integral scientific details and design concepts associated with Stirling converter regenerators. Gedeon and J.G. Wood, “Oscillating Flow Regenerator Test Rig: Hardware and Theory with Derived Correlations for Screens and Felts,” NASA CRFeb.

Google Scholar by: In a second part, the correlations proposed in the literature (Tanaka ; Gedeon and Wood Oscillating-flow regenerator test rig: hardware and theory with derived correlations for screens and felts. The Oscillating-Flow Regenerator Test Rig was specially designed to analyze regenerator pressure chop and heat transfer for oscillating flow.

For that purpose a motor-driven piston-cylinder assembly was installed to push gas back and forth through the regenerator sample. The fiiction factor was calculated fiom the piston. T1 - Modeling of active magnetic regenerators and experimental investigation of passive regenerators with oscillating flow.

AU - Lei, Tian. PY - Y1 - N2 - This thesis presents numerical modeling of active magnetic regenerator (AMR) and passive regenerator tests with oscillating : Tian Lei. Gedeon and J. Wood, Oscillating flow regenerator test rig: Hardware and theory with derived correlations for screens and felts, NASA CR ().

Google Scholar; K. Nam and S. Jeong, Novel flow analysis of regenerator under oscillating flow with pulsating pressure, Cryogenics 45 () – Crossref, ISI, Google Scholar; Author: V. Kishor Kumar, V. Kishor Kumar, Biju T. Kuzhiveli. This Oscillating-Flow Test Rig provides for measurement of thermal and flow properties of specimens representative of regenerator matrices in Stirling engines, or of other, similar specimens of porous materials in general.

Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get them in front of Issuu’s. “Oscillating-Flow Regenerator Test Rig: Hardware and Theory With Derived Correlations for Screens and Felts,” NASA Contractor Report No.

SimonCited by: 2. Oscillating-Flow Regenerator Test Rig: Hardware and Theory With Derived Correlations for Screens and Felts,” Lewis Research Center, Cleveland, OH, NASA Contractor Report No. Cited by: 2. Books Go Search EN Hello, Sign in Account & Lists Sign in Account & Lists Orders Try Prime Cart.

Best Sellers Gift Ideas New Releases Whole Foods Today's Deals AmazonBasics. "The Oscillating-Flow Regenerator Test Rig was specially designed to analyze regenerator pressure chop and heat transfer for oscillating flow.

For that purpose a motor-driven piston-cylinder assembly was installed to push gas back and forth through the regenerator sample. This regenerator had feature sizes close to those required for an actual Stirling engine but the overall regenerator dimensions were sized for the NASA/Sunpower oscillating-flow regenerator test rig.

Testing in the oscillating-flow test rig showed the regenerator performed extremely well, significantly better than currently used random-fiber Cited by: 6. The boundary conditions are set as the periodic flow of the sine function.

The thermodynamic parameters of the gas parcels are obtained, which reveal the critical processes of the heat transfer in the regenerator under oscillating flow.

The performance of the regenerator with different geometries is evaluated based on the numerical results. The oscillating-flow rig tests of the segmented-involute-foil regenerator have demonstrated a shift in regenerator performance strongly in the direction of the theoretical performance of ideal parallel-plate regenerators.",Cited by: An experiment was designed and carried out on the fundamental, but poorly understood problem of oscillating flow past a single, transverse, circular cylinder.

This is an approximation of the flow about a single element in a matrix-type regenerator used in Stirling-cycle engines. The experimental rig was designed and built to allow tests to be carried out for the wide range of fluid flow.

A sample three-pass tube-bundle regenerator ran for over hours in the test rig with no cracking or leakage problems. The burner had ten individual tubular chambers around the turbine housing, with a burner tube inside each chamber.

The fuel nozzles and igniter plugs were near the. A segmented involute-foil regenerator has been designed, microfabricated and tested in an oscillating-flow rig with excellent results. During the Phase I effort, several approximations of parallel-plate regenerator geometry were chosen as potential candidates for a new microfabrication concept.

Potential manufacturers and processes were surveyed. The selected concept consisted of stacked Cited by: Figure 2. Close-up of the end of the tested regenerator. Figure 3. NASA/Sunpower test rig.

Test Apparatus Testing was conducted in an oscillating flow test rig operated by Sunpower, Inc., for NASA Glenn Research Center. The apparatus is shown in Figure 3. The NASA/Sunpower regenerator testFile Size: 1MB.

This regenerator had feature sizes close to those required for an actual Stirling engine but the overall regenerator dimensions were sized for the NASA/Sunpower oscillating-flow regenerator test rig.

Testing in the oscillating-flow test rig showed the regenerator performed extremely well, significantly better than currently used random-fiber. Axial flow fan testing rig 1. Ahsanullah University Of Science & Technology Department of MPE Design and Construction of Axial Flow Fan Testing Rig Participants Shahib Abrar [] Sadia Islam [] Rakib Hossain [] S.M.

Asif [] 2. A test bench is designed and manufactured for testing different regenerators under oscillating flow conditions, while three-dimensional (3-D) numerical simulations are performed to numerically characterize the pressure drop phenomena through a wound woven wire matrix regenerator under different porosity and flow boundary conditions.

A new regenerator matrix design that improves the efficiency of a Stirling engine has been developed in a numerical study of the existing SM5 Stirling engine.

A new, detailed, one-dimensional Stirling engine model that delivers results in good agreement with experimental data was used for mapping the performance of the engine, for mapping the effects of regenerator matrix temperature.

A segmented involute-foil regenerator has been designed, microfabricated and tested in an oscillating-flow rig with excellent results. During the Phase I effort, several approximations of parallel-plate regenerator geometry were chosen as potential candidates for a new microfabrication concept.

Gedeon and J. Wood, “ Oscillating-flow regenerator test rig: Hardware and theory with derived correlations for screens and felts,” NASA Contractor ReportNASA Cited by:. journal article: micro-scale cfd modeling of oscillating flow in a regenerator.An initial non-equilibrium porous-media model for CFD simulation of stirling regenerators.

In Collection of Technical Papers - 4th International Energy Conversion Engineering Conference (pp. ). (Collection of Technical Papers - 4th International Energy Conversion Engineering Conference; Vol. 1).Cited by: EXPERIMENTAL TEST RIG The test rig was constructed to determine the heat transfer characteristics and pressure drop from the regenerator with wire rope and wire mesh respectively.

The test rig was fabricated and assembled as shown in figures (). The flowing table (1) shows the components of the test rig.