Gaining the Enthalpy of Solid Yields Formation in the Process of Waste Pyrolysis

An experimental study of pyrolysis method had been conducted to support the waste-to-energy program. It was very attractive method to convert the waste; cow dung and municipal solid waste in short time, only 2 hours. An appropriate pyrolyzer is required to support this process from the heat transfer mechanism and consider the chemical reaction. Therefore, the study aims to analyze the influence of different temperatures on the measured enthalpy of waste pyrolysis by means of calorimetrical measurement. The waste samples were used in experimental runs, and then the influence of temperature toward the solid yields were investigated. The enthalpy of solid yields formation would be presented by calorific/heating value of formed char/solid yields indicating an important-physical properties of fuel. The results referred that the values of solid yield enthalpy were pointed in a polynomial function indicating endothermic and exothermic reaction during pyrolysis. The different values exhibited that the solid yield enthalpy was also a temperature function, H(T). It ought to replace the H as temperature function in the heat energy balance governing equation. Consequently, the pyrolysis enthalpy could not only assume as endothermic values like in the previous investigations [6,8,1 but also establish both endothermic and exothermic values in globally pyrolysis process.