Research Article
Characteristics of Corrosion Related to Ash Deposition on Boiler Heating Surface during Cofiring of Coal and Biomass
Table 5
Fitting correlations of corrosion mass gain under different proportion of straw biomass blended to coal for metal samples coated with ash.
| Proportion of straw biomass blended to coal (%) | Fitting correlations (ΔG = kτ1/2 + C) | k | R2 |
| 100 | ΔG = 1.2737τ1/2 − 1.6477 | 1.2737 | 0.9945 | 70 | ΔG = 0.3913τ1/2 − 0.2843 | 0.3913 | 0.9967 | 50 | ΔG = 0.3992τ1/2 − 0.3659 | 0.3992 | 0.9975 | 20 | ΔG = 0.2221τ1/2 − 0.1707 | 0.2221 | 0.9894 | 0 | ΔG = 0.1906τ1/2 − 0.2145 | 0.1906 | 0.9969 | No fuel ash | ΔG = 0.1695τ1/2 − 0.1980 | 0.1695 | 0.9862 |
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