spray and cloud combustion experiments (CPS)

research area: combustion

experiment title:

Combustion Properties of Partially Premixed Spray Systems in the Field of Droplet and Spay Cloud Combustion

experiment acronym: CPS

funding agency: ESA

grant number: AO-98/99-094

performing organization:

ZARM, Universität Bremen

prime investigator: Christian Eigenbrod

experiment objective


For many technical combustion applications like power stations, aircraft engines, or automobile direct injection engines the detailed knowledge of the ignition process of liquid fuel sprays is necessary. Therefore the self-ignition process of single fuel droplets as the basic element of a fuel spray has to be investigated, because complex physical and chemical models are applicable in this system.

related publications

  • Moriue O., Schnaubelt S., Eigenbrod Ch., Rath H.J.: Numerical Simulation of the Ignition of a Single Fuel Droplet in Air with Finite Volume, Proc. 9th Int. Conf. on Liquid Atomization and Spray Systems, ICLASS (2003)

  • Moriue O., Eigenbrod Ch., Rath H.J., Tsue M., Kono M., Sato J.: Spontaneous Ignition of n-Alkane Droplets with Various Volatility, Trans. Japan Soc. Aero. Space Sci. 47 (157), 189-194 (2004)

  • S. Schnaubelt, C. Eigenbrod and H. J. Rath: Numerical analysis of the cool flame behavior of igniting n-Heptane droplets. Microgravity Sci. Technol. 17, 5-9 (2005)

  • Moriue O., Mikami M., Kojima N., Eigenbrod Ch.: Numerical simulations of the ignition of n-heptane droplets in the transition diameter range from heterogeneous to homogeneous ignition, Proc. Combust. Inst. 30, 1973-1980 (2005)

  • Moriue O., Matsuo K., Murase E., Schnaubelt S., Eigenbrod Ch.: Verification of a Numerical Simulation Model of Fuel Droplet Ignition through Microgravity Experiments and its Further Application, Journal of The Japan Society of Microgravity Application 24 (3), 251-254 August (2007)

  • Eigenbrod Ch., Dittmer J.Ch., Essmann O., Rath H.J.: Spraylets - a Way to Simulate Spray Autoignition, Journal of The Japan Society of Microgravity Application 24 (3), 213-219 (2007)

  • M. Reimert, G. Marks, C. Eigenbrod; "Diesel, Bio-Diesel, GTL-/BTL-Diesel, n-Heptan und n-Tetradekan/AMN: Experimenteller Vergleich der Selbstzündung von Einzeltropfen", 24. Deutscher Flammentag, VDI-Berichte 2056, S. 97 - 102, 2009

  • Rickmers, P., Eigenbrod, Ch., Klinkov, K., 2010. N-Heptane: Comparison of Spray Autoignition Experiments and Single Droplet Simulations, AIAA Journal (accepted for publication)

experimental setup

experiment campaigns

experiment year: 2009
number of drops: 57

experiment year: 2008
number of drops: 20

experiment year: 2007
number of drops: 35

experiment year: 2006
number of drops: 25

experiment year: 2002
number of drops: 22