Research Article
Experimental Determination of Heat Transfer Coefficient in Stirred Vessel for Coal-Water Slurry Based on the Taguchi Method
Table 3
Factors and their specified levels.
| Sl. no. | Variables | Levels | I | II | III |
| 1 | Stirrer speed in rpm | 100 | 200 | 300 | 2 | Stirrer location from free surface in cm | 27.5 | 55 | 82.5 | 3 | D/d ratio | 4.0 | 2.0 | 1.3 | 4 | Coal-water ratio | 40 : 60 | 50 : 50 | 60 : 40 |
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