AEMC 1954, Руководство пользователя

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APPENDIX B: EMISSIVITY TABLE
Material Specification Temp. °F (°C) Spectrum Emissivity Ref.
Aluminum
Polished aluminum 212 (100) 0.09
Commercial aluminum sheet 212 (100) 0.09
Oxidized anodized aluminum-
chromium
77~1112 (25~600) 0.55
Slightly oxidized aluminum 77~1112 (25~600) 0.10~0.20
Highly oxidized aluminum 77~1112 (25~600) 0.30~0.40
Anodized, light grey, matte 158 (70) LW : 8 - 14µm 0.97 9
Asphalt 38 (4) LLW : 6.5 - 20µm 0.96 8
Brass
Shiny brass (extreme polishing) 82 (28) 0.03
Brass oxide 392~1112 (200~600) 0.61~0.59
Brick
Red 68 (20) T : total spectrum 0.93 2
Refractory brick 2012 (1100) 0.75
Calcimine 68 (20) 0.9
Chromium Polished chromium 104~1994 (40~1090) 0.08~0.36
Concrete 68 (20) T : total spectrum 0.92 2
Copper
Shiny copper 212 (100) 0.05
Highly oxidized copper 77 (25) 0.78
Liquid copper
1976~2336
(1080~1280)
0.16~0.13
Oxidized 122 (50) T : total spectrum 0.6 - 0.7 1
Enamel (white) 64 (18) 0.9
Glass
Surface 23 (73) 0.94
Refractory 392~1004 (200~540) 0.85~0.95
Gold Shiny gold 446~1166 (230~630) 0.02
Graphite (carbon
black)
205~437 (96~225) 0.95
Iron and steel (non-
stainless)
Highly oxidized 122 (50) T : total spectrum 0.88
Lead
Pure lead (without oxidation) 257~437 (125~225) 0.06~0.08
Slightly oxidized 77~572 (25~300) 0.20~0.45
Magnesium
Magnesia
527~1517 (275~825) 0.55~0.20
1652~3038 (900~1670) 0.2
Mercury 32~212 (0~100) 0.09~0.12
Nickel
Polished by anodizing 77 (25) 0.05
Electrolyzed 68 (20) 0.01
Nickel wire 365~1850 (185~1010) 0.09~0.19
Nickel foil (oxidized) 388~1112 (198~600) 0.37~0.48
Nickel oxide 1202~2291 (650~1255) 0.59~0.86
Nickel alloys
Nickel-chromium alloy wire
(shiny) (refractory)
122~1832 (50~1000) 0.65~0.79
Nickel-chromium alloy 122~1904 (50~1040) 0.64~0.76
Refractory nickel-chromium 122~932 (50~500) 0.95~0.98
Nickel-silver alloy 212 (100) 0.14
Paint 8 different colors and grades 158 (70) LW : 8 - 14µm 0.92 - 0.94 9
Plaster
Unfinished covering 68 (20) T : total spectrum 0.91
Plaster tile 0.87
Plastic
PVC, plastic flooring, matte,
structured
158 (70) LW : 8 - 14µm 0.93 9
Rubber Hard 68 (20) T : total spectrum 0.95
Stainless steel
18-8 77 (25) 0.16
304 (8Cr, 18Ni) 419~914 (215~490) 0.44~0.36
310 (25Cr, 20Ni) 419~968 (215~520) 0.90~0.97
Terra cotta tile 0.88 10
Tin
Commercial tinplate 212 (100) 0.07
High oxidation 32~392 (0~200) 0.6
Water 0.96
Wood Planed oak 68 (20) T : total spectrum 0.90 2
Zinc
Oxidation at 752°F (400°C) 752 (400) 0.01
Shiny plate of galvanized iron 82 (28) 0.23
Oxidized zinc powder 77 (25) 0.28
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