OPTIMIZATION OF SOLID FUEL MOLDING PARAMETERS AND COMBUSTION CHARACTERISTICS OF Pinus bungeana
A multi-factor experimental study is conducted on the physical properties of solid fuel made from Pinus bungeana waste,using the response surface method to analyze the effects of the interaction of 3 factors,namely,moisture content of raw materials,temperature and molding pressure,on the density,durability and shatter resistance of solid fuel.The response optimization of the density,durability and shatter resistance of the fuel is carried out by applying the Mahalanobis distance method.The combustion characteristics of Pinus bungeana are also analyzed using a synchronous thermal analyzer.The results show that fuel density,durability,and shatter resistance reach to 1.01 g/cm3,95%,and 98%or more,corresponding to the range of 6.5%-10%moisture content,70-100℃,and 100-130 MPa pressure.And the best combination of molding parameters is obtained,with the water content 6.9%,temperature 84.5℃,and pressure 130 MPa.Under these conditions,the density,durability,and drop resistance of the fuel molded reach to 1.15 g/cm3,98.5%,and 99.7%,respectively.Meanwhile,the combustion characteristic indexes are 0.45,2.18,and 13.26×10-8 K3/min2 for 10,20,and 30 K/min heating rates,respectively.And the combustion characteristic indexes increase with the increase of the heating rate.
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万方数据
维普
