Preliminary analysis of a high pressure spray and cloud combustion module for the ISS

Go¨kalp, I.; Chauveau, C.; Durox, D.; Lacas, F.; Legrand, B.; Shafirovich, E.
January 2000
AIP Conference Proceedings;2000, Vol. 504 Issue 1, p398
Academic Journal
Combustion of droplet sprays and particle clouds is a very important area due to numerous applications to engines and power systems as well as to problems of industrial safety and clean environment. However, combustion of two-phase systems is not well understood yet. In the combustion of sprays or clouds gravitational effects add another difficulty due to the sedimentation of the particles and droplets. Indeed, stability of a spray or a cloud under normal gravity can only be achieved by stirring this two-phase mixture which produces a turbulent flow field. Therefore, under normal gravity conditions, the combustion characteristics of two-phase mixtures can only be obtained in turbulent flow. On the other hand, and namely for high-pressure conditions, these characteristics are in fact also strongly influenced by natural convection. It is proposed to develop a combustion facility for the International Space Station, which would make it possible to study high pressure combustion of spray and clouds as well as of single droplets and particles under microgravity. In this paper we present results of our preliminary analysis of possibilities to develop a high pressure spray and cloud combustion module for the ISS. We analyzed previous experiments on combustion of clouds and sprays under conditions of both normal and reduced gravity from the standpoint of working out the optimum techniques for the use onboard the ISS. The reader can find more details of this analysis in Ref. 1. On the basis of this analysis, some promising methods were identified and tested experimentally in parabolic flights of A300 ZERO-G aircraft in December 1998 and March 1999. © 2000 American Institute of Physics.


Related Articles

  • Ultrahigh pressures. Jayaraman, A. // Review of Scientific Instruments;Jun86, Vol. 57 Issue 6, p1013 

    This article reviews mainly the use of the diamond anvil cell (DAC) for ultrahigh-pressure generation (a few hundred GPa) and the various techniques employed in studying the high-pressure behavior of solids. A brief historical introduction to devices used in the prediamond-anvil era is presented...

  • My Goldfish Is a Submarine. D'Alto, Nick // Odyssey;Nov2003, Vol. 12 Issue 8, p25 

    Explains how to navigate under water using pressure and then pilot one's own robotic diver. INSET: Buoyant Force -- the Naked Truth.

  • Current snap-back and negative differential resistance in layered PnvN structures. Trivedi, Malay; Shenai, Krishna // Journal of Applied Physics;8/15/1998, Vol. 84 Issue 4, p2091 

    Presents information on the anomalous snap-back relating to the I-V characteristics of high power recifiers having a buffer layer. Location of this buffer layer; Identification of conditions of these layers; Emerging of localized lifetime control; Demonstration of proton irradiation.

  • ZnGeP2 grown by the liquid encapsulated Czochralski method. Hobgood, H. M.; Henningsen, T.; Thomas, R. N.; Hopkins, R. H.; Ohmer, M. C.; Mitchel, W. C.; Fischer, D. W.; Hegde, S. M.; Hopkins, F. K. // Journal of Applied Physics;4/15/1993, Vol. 73 Issue 8, p4030 

    Presents information on a study that investigated the high pressure liquid encapsulated Czochralski process as an alternative growth method for ZnGeP[sub2]. Methodology of the study; Results and discussion on the study.

  • Origins of the Diamond Anvil Cell. Ferraro, John R.; Van Valkenburg, Eric // Spectroscopy;Nov1999, Vol. 14 Issue 11, p19 

    Discusses the design and variations of the diamond anvil cell (DAC), which is a pressure cell incorporated with diamonds. Methods of calibrating the pressure incurred in a DAC; Main areas of high-pressure research which have been examined using the DAC.

  • Elimination of pressure-induced fluorescence in diamond anvils. Eggert, Jon H.; Goettel, Kenneth A.; Silvera, Isaac F. // Applied Physics Letters;12/19/1988, Vol. 53 Issue 25, p2489 

    At pressures above one megabar (100 GPa) in high-pressure diamond anvil cell experiments the ruby fluorescence signal needed for pressure calibration is increasingly difficult to measure. A primary cause of this difficulty is the presence of an intense pressure-induced diamond fluorescence. We...

  • New dielectric method for the measurement of physical adsorption of gases at high pressure. Bose, T. K.; Chahine, R.; Marchildon, L.; St-Arnaud, J. M. // Review of Scientific Instruments;Dec1987, Vol. 58 Issue 12, p2279 

    A new method for the measurement of gas adsorption at high pressure is described in detail. The method is based on dielectric virial coefficients and it takes advantage of the dielectric technique for the accurate measurement of the compressibility factor of gases at high pressure. The method is...

  • High-pressure operation of a beam diode for relativistic electron beams. Matsuzawa, Hidenori; Akitsu, Tetsuya // Journal of Applied Physics;5/1/1988, Vol. 63 Issue 9, p4388 

    Presents information on operating a beam diode at a high pressure. Waveforms of electron currents for N[sub2]; Information on the process of electron multiplication.

  • PREFACE. Meyer, Andreas // High Temperatures -- High Pressures;2013, Vol. 42 Issue 1, p1 

    A preface for the February 2013 issue of "High Temperatures-High Pressures," journal, is presented.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics