Notice of RetractionPreparation of the compound fuel and its mechanical and combustion properties

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

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It is a good way to reduce and reuse the mined refuse using municipal solid waste(MSW), sewage sludge, pulverized coal and others to prepare compound fuel. A L₁₆(4⁵)orthogonal test design was used to study mechanical and combustion properties of the fuel, there were 16 treatments with 3 replicates. Applying the statistical soft system of SPSS13.0 for windows to analyze the influence of preparation parameters on the fuel´s properties, and to further get the predictive equation. The result showed that A₂B₁C₄D₃ is the optimum formula and its preparation parameters was: MSW:sludge:pulverized coal of 2:1:1(mass ratio), 0.19% MnO₂, 1.5% CaO. In this way, the predicted value of it´s compressive strength, compressive strength after immersion and re-drying, thermal stability(TS₊₆) and heating value is 111.69kPa, 59.64kPa, 74.36% and 18.58kJ/g respectively. The maximum compressive strength is 212.12kPa of all samples owe to a fuel made of MSW:sewage:sludge:pulverized coal of 2:1:1, 15% litter, 0.18% MnO₂, 0.6% CaO. When MSW:sewage sludge:pulverized coal is 2:1:1, besides litter, MnO₂ and CaO content is 5%, 0.18% and 1.2% respectively, the maximum compressive strength after immersion and re-drying is up to 62.54kPa. Similarly, the largest thermal stability of combination A₂B₁C₄D₂ is 76.73%. The highest calorific value of the fuel made up of A₄B₁C4D₃ is 19.22kJ/g.