[Retracted] Kinetics of Sludge Superheated Steam Drying and Optimization of Process Parameters

Figure 8

Effects of relative unit energy consumption on mass of sludge temperature, steam flow, and mass of sludge. (a) Response surface plot and contour map of relative energy consumption on steam temperature and mass of sludge. Note: steam flow is fixed at 0 level. (b) Response surface plot and contour map of relative energy consumption on steam temperature and steam flow. Note: mass of sludge is fixed at 0 level. (c) Response surface plot and contour map of relative energy consumption on mass of sludge and steam flow. Note: steam temperature is fixed at 0 level.

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