ignition process of liquid fuel in high temperature air (DROPCOS)

research area: combustion

experiment title:

Development and Research-Program on Pollutant-Reduced Combustion Systems (DROP-COS)

experiment acronym: DROPCOS

funding agency: DLR

grant number: 50WM9448

performing organization

ZARM, Universität Bremen /

Institut für Physikalische Hochtechnologie e.V. (IPHT), Bereich Lasertechnik, Jena

Institut für Technische Mechanik (ITM), RWTH Aachen

prime investigator

Christian Eigenbrod / Prof. Dr. Wolfgang Triebel /

Prof. Dr.-Ing. Norbert Peters

experiment objective


Ignition phenomena play an important role in many practical applications of combustion systems, where hydrocarbon fuels such as diesel oil and kerosene are burned. This is valid, for example, for lean prevaporized premixed combustion, a modern combustion technique of increasing importance. While autoignition is unwanted in premixing zones of stationary or aircraft gas turbines, it is desired that the fuel/air mixture ignites immediately after entering the combustion chamber. In addition, internal combustion (IC) engines, such as diesel and gasoline direct-injection engines have to control self-ignition phenomena to avoid knocking.

related publications

  • Schnaubelt S., Tanabe M., Eigenbrod C., Rath H.J.: Verification of Detailed Simulations for Two-Stage Ignition of Single Droplets by Ignition Radii, Space Forum (Proc. of Drop Tower Days 1998) pp. 299-306 (2000)

  • Schnaubelt S., Moriue O., Coordes T., Eigenbrod C., Rath H.J.: Detailed Numerical Simulations of the Multi-Stage Self-Ignition Process of n-Heptane Isolated Droplets and Their Verification by Comparison with Microgravity Experiments, Proc. Combust. Inst. 28, pp. 953-960 (2000)

  • Moriue O., Eigenbrod Ch., Rath H. J., Sato J., Okai K., Tsue M., Kono M.: Effects of Dilution by Aromatic Hydrocarbons on Staged Ignition Behavior of n-Decane Droplets, Proc. Combust. Inst. 28, pp.969-975 (2000)

  • Bolik T., König J., Eigenbrod Ch., Rath H.J.: Application of a new diagnostic method to observe pre-ignition phenomena of self igniting fuel droplets, Proc. 10th Int. Symp. on Appl. of Laser Techn. to Fl. Mech. Lisbon (2000)

  • Schnaubelt S., Moriue O., Eigenbrod Ch., Rath H.J.: Verification of Detailed Numerical Simulations with Complex Chemistry for the Multi-Stage Selfignition Process of n-Decane Droplets, Microgravity Science and Technology XII/1 (Proc. Drop Tower Days 2000) 20-23 (2001)

  • Schnaubelt S., Eigenbrod Ch., Rath H.J.: Numerical Analysis of the Cool Flame Behavior of Igniting n-Heptane Droplets, Microgravity Science and Technology (Proc. Drop Tower Days 2004) (2004)

experimental setup

experiment campaigns

experiment year: 2000
number of drops: 32 (DROPCOS_3)

experiment year: 2000
number of drops: 10 (DROPCOS_1)