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Fast Pyrolysis of Biomass in a Spout-fluidized Bed Reactor Analysis of Composition and Combustion Characteristics of Liquid Product from Biomass
biomass,pyrolysis spout-fluidized bed liquid product
2009/11/16
In order to gain insight into the fast pyrolysis mechanism of biomass and the relationship between bio-oil composition and pyrolysis reaction conditions, to assess the possibility for the raw bio-oil ...
汽油/氢发动机燃烧特性试验与仿真(Experiment and Simulation on Combustion Characteristics of a Four Cylinder SI Engine Fueled with Hydrogen and Gasoline)
氢发动机 汽油机 燃烧特性 仿真
2009/8/11
进行了当量比φ=1的汽油机和当量比分别为0.8、0.6、0.4的纯氢发动机台架试验。通过对测得的汽油机和氢发动机燃烧缸压数据进行标定,建立了较为准确的AVL Boost汽油机和氢发动机燃烧仿真模型,并进行了仿真。结果表明,氢燃料的特性使得缸内混合气的燃烧速度显著加快,燃烧持续期大幅缩短,导致缸压上升,有效热效率得到提高。当量比为0.4的稀薄工况时纯氢发动机仍可正常运行,发动机燃用氢气可改善发动机性...
甲醇缸内直喷发动机均质燃烧特性研究(Experiment on Homogeneous Charge Combustion Characteristics of Direct-injection Spark-ignition Methanol Engine)
缸内直喷 均质燃烧 甲醇发动机 燃烧特性 试验
2010/5/5
在一台四缸柴油机改造的火花点火甲醇缸内直喷发动机上,高负荷时,在进气冲程将燃油喷入缸内,形成近化学计量比的混合气来实现均质燃烧。通过对典型工况的气缸压力的测量和分析,探讨了不同参数对甲醇发动机燃烧特性的影响。结果表明:甲醇缸内直喷发动机最大功率和最大扭矩比原机分别提高5.88%和20.90%,发动机最高热效率可达35.3%,远高于普通汽油机水平。甲醇缸内直喷发动机的滞燃期和急燃期随负荷的增加而变小...