Laser spectroscopy & spray measurement
Milano unit
The laboratory is equipped with several laser spectroscopic systems for the development of advanced optical/spectroscopic techniques for chemical and morphological characterization of nanoparticles. In particular aerosols and micro-pollutants at the exhaust of combustion systems and in the environment are investigated.
New energy devices (catalytic or not) for micro-generation are also currently under development.
EQUIPMENT:
- Cw laser (medium and high power);
- Pulsed laser ( IR, UV, VIS);
- Calibrated lamps;
- Detectors: monochromators coupled with photomultipliers, CCD (intensified or not), spectrographic system coupled with ICCD, ), spectrographic system coupled with intensified diode array;
- FT-IR spectrometer (Nicolet 6700), equipped with ATR (for the analysis of powders and solutions) and heated variable path cell (for gas analysis);
- Pneumatic system for rapid insertion sampling of nanoparticles;
- Home-made Laser-Induced Incandescence instrument for the detection of carbonaceous nanoparticles ate the exhaust of combustion systems and in the environment;
- Home-made carbonaceous nanoparticles generator (for calibration purpose).
The laboratory is provided with test chambers for the simulation of typical thermodynamic conditions of both spark ignition and diesel engines. Typical gas turbine combustion chamber conditions can also be obtained. In these conditions both spray liquid and vapor phase visualizations are performed. Droplet diameters and velocities measurements by Phase Doppler Anemometry (PDA) are performed.
EQUIPMENT:
- Laser Phase Doppler Anemometry system;
- PCO-Sensicam Camera;
- Intensified Camera PCO-DiCam;
- Laser Ar Ione Spectraphysics;
- Laser Nd:YAG Quantronix;
- National Instruments control and acquisition system.