meccanico79
Mechanical
- Apr 8, 2005
- 1
Hello, I'm new in this newsgroup and I need some help for a research I'm doing. I'm investigating the heat exchange in a water-cooled finned array, and I'm doing it with IR thermography: the tops of the aluminium fins are observed throught a ZnSe window to determinate their temperature.
The problem is that I've difficulties to keep them in contact: sometimes between the fins and the window there is a thin water film and this disturbs the measuring. I thinked to seal the tops of the pins and the window with some paste: it should be water-resistant, not aggressive for the ZnSe and the aluminium, high IR-emissive (or alternatively high trasmittive) and it should resist to temperature of 50°C; last, but not least, it MUST be possible to remove it completely to allow the re-use of the window.
I thinked to something like wax, but it's not going to resist to the temperature and to the washing effect of the stream.
Could someone suggest some material?
Thank you in advance!!!
Meccanico79
The problem is that I've difficulties to keep them in contact: sometimes between the fins and the window there is a thin water film and this disturbs the measuring. I thinked to seal the tops of the pins and the window with some paste: it should be water-resistant, not aggressive for the ZnSe and the aluminium, high IR-emissive (or alternatively high trasmittive) and it should resist to temperature of 50°C; last, but not least, it MUST be possible to remove it completely to allow the re-use of the window.
I thinked to something like wax, but it's not going to resist to the temperature and to the washing effect of the stream.
Could someone suggest some material?
Thank you in advance!!!
Meccanico79
