Heat Collector Element (HCE) length,

4.06 m

Aperture Area,

39 m²

HCE Number

2

Glass envelope inner and outer diameter;,

0.115 m, 0.105 m

Absorber pipe inner and outer diameter, ,

0.07 m, 0.066 m

Absorber pipe thermal absorptance,

0.92

Glass envelope thermal absorptance,

0.02

Glass envelope transmittance,

0.935

Glass envelope thermal conductivity,

1.04 W/m-K

Glass envelope emissivity,

0.86

HCE Shadowing (bellows, shielding, supports),

0.974

Tracking Error,

0.994

Geometry Error (mirror alignment),

0.98

Unaccounted,

0.96

Reflectivity

0.93

Clean Mirror Reflectance,

0.935

Effective bracket perimeter for convection heat transfer,

0.2032 m

Effective bracket diameter,

0.0508 m

Minimum bracket cross-sectional area for conduction heat transfer,

0.00016129 m²

Conduction coefficient for carbon steel at 600 K,

48 W/m-K

The dirt on mirror,; dirt on HCE,

and Coating emittance,