Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31

P. Andersen, S.A. Andersen, J. Bundgård, L. Bækmark, B.H. Hansen, Vagn Orla Jensen, H. Kossek, Poul Michelsen, A. Nordskov, B. Sass, H. Sørensen, K.V. Weisberg

    Research output: Book/ReportReport

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    Abstract

    This report describes work on pellet acceleration by means of an arc heated gas gun. The work is a continuation of the work described in Risø-M-2536. The aim of the work is to obtain velocities well above 2 km/s for 3.2 mm diameter deuterium pellets. By means of a cryogenic arc chamber in which the hydrogen propellant is pre-condensed, extruded deuterium pellets are accelerated up to a maximum velocity of 1.93 km/s. When increasing the energy input to the arc in order to increase the pellet velocity further the heat input to the extrusion/punching pellet loading mechanism was found to be critical: preparation of pellets became difficult and cooling times between shots became inconveniently long. In order to circumvent this problems the concept of a room temperature hydrogen propellant pellet fed arc chamber was proposed. Preliminary results from acceleration of polyurethane pellets with this arc chamber are described as well as the work of developing of feed pellet guns for this chamber. Finally the report describes design consideration for a high pressure propellant pellet fed arc chamber together with preliminary results obtained with a pro to-type arc chamber.
    Original languageEnglish
    Place of PublicationRoskilde
    PublisherRisø National Laboratory
    Number of pages52
    ISBN (Print)87-550-1328-7
    Publication statusPublished - 1987
    SeriesRisø-M
    Number2650
    ISSN0418-6435

    Keywords

    • Risø-M-2650

    Cite this

    Andersen, P., Andersen, S. A., Bundgård, J., Bækmark, L., Hansen, B. H., Jensen, V. O., ... Weisberg, K. V. (1987). Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31. Roskilde: Risø National Laboratory. Risø-M, No. 2650
    Andersen, P. ; Andersen, S.A. ; Bundgård, J. ; Bækmark, L. ; Hansen, B.H. ; Jensen, Vagn Orla ; Kossek, H. ; Michelsen, Poul ; Nordskov, A. ; Sass, B. ; Sørensen, H. ; Weisberg, K.V. / Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31. Roskilde : Risø National Laboratory, 1987. 52 p. (Risø-M; No. 2650).
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    abstract = "This report describes work on pellet acceleration by means of an arc heated gas gun. The work is a continuation of the work described in Ris{\o}-M-2536. The aim of the work is to obtain velocities well above 2 km/s for 3.2 mm diameter deuterium pellets. By means of a cryogenic arc chamber in which the hydrogen propellant is pre-condensed, extruded deuterium pellets are accelerated up to a maximum velocity of 1.93 km/s. When increasing the energy input to the arc in order to increase the pellet velocity further the heat input to the extrusion/punching pellet loading mechanism was found to be critical: preparation of pellets became difficult and cooling times between shots became inconveniently long. In order to circumvent this problems the concept of a room temperature hydrogen propellant pellet fed arc chamber was proposed. Preliminary results from acceleration of polyurethane pellets with this arc chamber are described as well as the work of developing of feed pellet guns for this chamber. Finally the report describes design consideration for a high pressure propellant pellet fed arc chamber together with preliminary results obtained with a pro to-type arc chamber.",
    keywords = "Ris{\o}-M-2650",
    author = "P. Andersen and S.A. Andersen and J. Bundg{\aa}rd and L. B{\ae}kmark and B.H. Hansen and Jensen, {Vagn Orla} and H. Kossek and Poul Michelsen and A. Nordskov and B. Sass and H. S{\o}rensen and K.V. Weisberg",
    year = "1987",
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    Andersen, P, Andersen, SA, Bundgård, J, Bækmark, L, Hansen, BH, Jensen, VO, Kossek, H, Michelsen, P, Nordskov, A, Sass, B, Sørensen, H & Weisberg, KV 1987, Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31. Risø-M, no. 2650, Risø National Laboratory, Roskilde.

    Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31. / Andersen, P.; Andersen, S.A.; Bundgård, J.; Bækmark, L.; Hansen, B.H.; Jensen, Vagn Orla; Kossek, H.; Michelsen, Poul; Nordskov, A.; Sass, B.; Sørensen, H.; Weisberg, K.V.

    Roskilde : Risø National Laboratory, 1987. 52 p. (Risø-M; No. 2650).

    Research output: Book/ReportReport

    TY - RPRT

    T1 - Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31

    AU - Andersen, P.

    AU - Andersen, S.A.

    AU - Bundgård, J.

    AU - Bækmark, L.

    AU - Hansen, B.H.

    AU - Jensen, Vagn Orla

    AU - Kossek, H.

    AU - Michelsen, Poul

    AU - Nordskov, A.

    AU - Sass, B.

    AU - Sørensen, H.

    AU - Weisberg, K.V.

    PY - 1987

    Y1 - 1987

    N2 - This report describes work on pellet acceleration by means of an arc heated gas gun. The work is a continuation of the work described in Risø-M-2536. The aim of the work is to obtain velocities well above 2 km/s for 3.2 mm diameter deuterium pellets. By means of a cryogenic arc chamber in which the hydrogen propellant is pre-condensed, extruded deuterium pellets are accelerated up to a maximum velocity of 1.93 km/s. When increasing the energy input to the arc in order to increase the pellet velocity further the heat input to the extrusion/punching pellet loading mechanism was found to be critical: preparation of pellets became difficult and cooling times between shots became inconveniently long. In order to circumvent this problems the concept of a room temperature hydrogen propellant pellet fed arc chamber was proposed. Preliminary results from acceleration of polyurethane pellets with this arc chamber are described as well as the work of developing of feed pellet guns for this chamber. Finally the report describes design consideration for a high pressure propellant pellet fed arc chamber together with preliminary results obtained with a pro to-type arc chamber.

    AB - This report describes work on pellet acceleration by means of an arc heated gas gun. The work is a continuation of the work described in Risø-M-2536. The aim of the work is to obtain velocities well above 2 km/s for 3.2 mm diameter deuterium pellets. By means of a cryogenic arc chamber in which the hydrogen propellant is pre-condensed, extruded deuterium pellets are accelerated up to a maximum velocity of 1.93 km/s. When increasing the energy input to the arc in order to increase the pellet velocity further the heat input to the extrusion/punching pellet loading mechanism was found to be critical: preparation of pellets became difficult and cooling times between shots became inconveniently long. In order to circumvent this problems the concept of a room temperature hydrogen propellant pellet fed arc chamber was proposed. Preliminary results from acceleration of polyurethane pellets with this arc chamber are described as well as the work of developing of feed pellet guns for this chamber. Finally the report describes design consideration for a high pressure propellant pellet fed arc chamber together with preliminary results obtained with a pro to-type arc chamber.

    KW - Risø-M-2650

    M3 - Report

    SN - 87-550-1328-7

    BT - Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31

    PB - Risø National Laboratory

    CY - Roskilde

    ER -

    Andersen P, Andersen SA, Bundgård J, Bækmark L, Hansen BH, Jensen VO et al. Investigation of Pellet Acceleration by an Arc Heated Gas Gun. An Interim Report on the Investigations Carried out from 1985.09.01 to 1987.03.31. Roskilde: Risø National Laboratory, 1987. 52 p. (Risø-M; No. 2650).