Clean Combustion Winter School
New week, new project, new team. Take a deep look inside a flame with lasers or detailed computer simulations, or learn how to tame a flame with plasma .
9:00 - 10:30 AM
Class 2: Optical Diagnostics
Class 3: Flame Simulations
Class 4: Pollutant Emissions
10:30 – 12:00 PM
12:00 – 01:00 PM
01:00 – 05:00 PM
Lab tour & Safety training
Planar Laser Induced Fluorescence (PLIF) of a laminar Bunsen flame: which differences between premixed and diffusion flames?
The students will align a PLIF system and to get images of radical species present in the combustion front and the burnt gases of laminar premixed and diffusion flames. They will post-process the images in order to qualitatively compare the OH density in the different areas of the combustion. They will explain their results based on the theory presented during the morning class.
Particle Image Velocimetry (PIV) of a swirl stabilized flame: what becomes the flow after a flame?
The students will align a PIV system for investigation of the flow during combustion of a turbulent pre-mixture of methane and air. They will optimize the acquisition parameters in order to obtain nice velocity fields before and after the flame front. Based on the theory of combustion, they will explained the observed gas dynamics.
The students will make high-speed movies of the propagation of methane-air flames in a constant volume chamber. From the images, they will determine the burning velocity of these flames, for different experimental conditions, such as, different initial pressures and fuel/air mixture fractions. They will discuss their results with respect to the theory of laminar burning velocity.
The students will setup a laminar atmospheric pressure sooty flame and align a LII system in order to determine the soot density. They will change the combustion parameters in order to investigate their effects on the soot formation. The results will be analyzed based on the theoretical aspects presented during the morning class.