Holographic two-wavelengths interferometry for measurement of combined heat and mass transfer
Abstract
A holographic approach (in place of earlier Mach-Zehnder interferometry) to the two-wavelengths interferometric technique is evaluated. Applications to processes in chemical engineering and combustion research involving mass transfer and heat transfer are considered. Two interferograms are taken simultaneously in order to determine both temperature and concentrations of two-component systems from the difference. Mixtures whose optical properties vary only slightly with wavelength yield to the technique, as indicated by investigation of air/naphthalene and air-n-Hexan mixtures. Double-exposure and single-exposure holograms were compared.
- Publication:
-
Combustion measurements: Modern techniques and instrumentation
- Pub Date:
- 1976
- Bibcode:
- 1976cmmt.proc..270M
- Keywords:
-
- Fuel Combustion;
- Heat Transfer;
- Holographic Interferometry;
- Mass Transfer;
- Binary Mixtures;
- Chemical Engineering;
- Gas Lasers;
- Hydrocarbon Fuels;
- Mach-Zehnder Interferometers;
- Refractivity;
- Temperature Profiles;
- Instrumentation and Photography