486 Index
spectral/Planck distribution of, 332
sun, apparent temperature, 332–333
surface absorptivity
relationships between, 329
spectral absorptivity, 328
spectral-directional absorptivity,
328–329
total absorptivity, 328
surface reectivity
spectral-directional reectivity, 330
spectral-hemispherical reectivity, 329
total-hemispherical reectivity, 329
surfaces, radiation properties
gray surface, 327
surface emissivity, 326–328
total emissive power and emissivity, 326
surface transmissivity
spectral-directional transmissivity, 330
spectral-hemispherical transmissivity,
330
total-hemispherical transmissivity,
dened, 330
view factor
dened, 337
reciprocity rule, 337
for some three-dimensional
geometries, 339
for some two-dimensional
geometries, 338
summation r ...