基于马氏距离法的谷秆固体燃料成型工艺参数优化  

OPTIMIZATION OF MOLDING PROCESS PARAMETERS OF MILLET STRAW SOLID FUEL BASED ON MAHALANOBIS DISTANCE FUNCTION

作　　者：张静[1] 刘正光[1] 郑德聪[1] 吴锴[1] 张秀全[1] Zhang Jing;Liu Zhengguang;Zheng Decong;Wu Kai;Zhang Xiuquan(College of Engineering, Shanxi Agricultural University, Taigu 030801, China)

机构地区：[1]山西农业大学工学院

出　　处：《太阳能学报》2018年第6期1658-1666,共9页Acta Energiae Solaris Sinica

基　　金：科技部“十三五”国家重点研究计划(2016YFD0701804);山西省重点研发计划(农业)项目(201703D221030-2);山西农业大学博士科研启动项目(2015ZZ09)

摘　　要：采用响应面法对影响谷子秸秆固体燃料物理特性的工艺参数（温度、压力和含水率）进行研究,并应用马氏距离法得到3响应优化结果。试验结果表明：谷秆燃料密度与压力成正比,与含水率成反比,随温度升高呈先增后减的趋势。耐久性和抗跌碎性均随压力、含水率的增大和温度的升高而先增后减。当压力在85-110 MPa,温度在80-110℃,含水率在8.5%-11.0%可加工得到优质谷秆固体燃料。最佳成型工艺参数为温度97℃、压力107 MPa和含水率10.7%,在此条件下密度、耐久性和抗跌碎性分别达到1.18 g/cm^3、99.75%和99.77%。The response surface methodology was used to investigate the process parameters affecting physical property（temperature,pressure and moisture content）of millet straw solid fuel. Three-response optimization results were got byapplying Mahalanobis distance method. The testing results show that the density of millet straw fuel is proportional topressure,inversely proportional to moisture content,and is increased firstly and then decreased with the increase oftemperature. The durability and crush resistance are increased firstly and then decreased with increasing pressure,temperature and moisture content. The high quality millet straw solid fuel can be obtained when the pressure,temperature and moisture content are 85-110 MPa,80-110 ℃ and 8.5%-11.0%,respectively. The optimum moldingprocess parameters are temperature of 97 ℃,pressure of 107 MPa and water content of 10.7%. The density,durabilityand crush resistance at the optimum condition are 1.18 g/cm^3,99.75% and 99.77%,respectively.

关 键 词：生物质 压缩 优化设计 谷秆 马氏距离法 

分 类 号：TK519[动力工程及工程热物理—热能工程]