Quantity | Value for model plant | Value for full-scale plant, industrial ETB | Full-scale/model plant ratio (similarity constant) | ||||||
Bottom-to-panel angular radiation coefficient φ0 | 0.2 - 0.5; φ0.av. = 0.35 | after [8] 0.6 after [9] 0.42} φ0av = 0.51 |
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Coke-to-panel integral angular radiation coefficient φ | 2 | 2.364 |
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Integral emissivity factor ε1ε2 |
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Reduced emissivity factor | 0.746 | 0.784 |
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Temperature factor 1 stage full-sc.- tav.full-sc. 920˚C, mod-800˚C] 2 stage full-sc.?Tav3 [tav.full-sc.-700˚C, mod -700˚C] | 10733 9733 | 11933 9733 |
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Resulting similarity | 1 stage constant │ 2 stage
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, W/m2К for stage 1 | 51 (after experiment [5] ) |
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for stage 2 | 47 (after experiment [5] ) | 59.3 |
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For 3, 4, 5, 6 stages Stage No. → | 3 | 4 | 5 | 6 | 3 | 4 | 5 | 6 | 3 - 6 |
αmod. and αfull-sc. for 3 - 6 stages, W/m2К | 38 | 37 | 36 | 35 | 47.3 | 46 | 45 | 44 | 1.246 |