This report presents the results of measurements of the heat transfer coefficients for air spaces of various emissivities and thicknesses. The data were obtained for five different orientations and directions of heat flow, ranging from heat flow vertically upward to heat flow vertically downward, and encompass a range of values of temperature difference across the air space.

The publication, repri unless permission Isol 25.D.C. Suchpermi cal ly prepared If tha Approved for public release by the Director of the National Institute of Standards and Technology (NIST) on October 9, 2015. part, is prohibited dards, Washington rt has been specifiirt for its own use.

No abstract

No abstract

No abstract