Blocking Radiation

[eng86]

Hi, I am making a heat shield to block unwanted waste heat from radiation. It is for an aluminum casting process. The shield is currently a sandwich of stainless steel plates with insulation board in between. Does anyone know anything else I can alter on the shield to help reflect/block the radiation? So far I've been thinking about surface finish.
Thanks!

 

[Rjeffery]

Is the radiation ionizing or non-ionizing radiation?

 

[davefitz]

a radiation shield does not require blocks of insulating pads between sheets. Just a series of sheets separated by a minimal gap works fine. It helps to include details that minimize thermal distortion.

Most thermal radiation heat transfer textbooks include a section on designing and analyzing heat shields. The effect of modifying the surface emmissivity is a standard deisng parameter.

 

[unclesyd]

You havn't give any of the physical parameters so I'll take a chance enhancing the emissity or conductance of the hot part of the heat shield.
I would talk with the people a ZPY about both approaches.

http://www.zypcoatings.com/ProductPages/HighEmissivity.htm

 

[eng86]

Thanks for all your help guys! I'll be looking into what you said.