根据中国天然气组分变化的情况，研究了天然气组分变化时，燃料的低热值、理论空燃比和燃烧势等燃烧参数的变化；
The variations of lower heating value, theoretical air fuel ratio and combustion potential of natural gas fuel were investigated according to the variation of natural gas composition in China.
在适宜的汽氧比条件下，不同煤种纯氧-水蒸汽地下气化均可以获得中热值煤气。
On optimum ratio of vapor to oxygen, oxygen-steam gasification of different coal can produce middle heat value gas.
以质量计的燃油消耗率有所增加，但以燃料热值计的比能耗降低。
The brake specific fuel consumption is increased, but brake specific energy consumption can be improved.
实验主要考察了氧的当量比和氧体积分数对气化气组成、碳转化率和气体热值的影响。
The effects of equivalence ratio and volume fraction of oxygen on gas composition, carbon conversion and low heating value of fuel gas were investigated through a series of experiments.
最后提到了比单纯“反馈”系统更为快速、灵敏、准确控制热值的“前馈”加“反馈”的复合控制系统。
The composite control system with"prefeed"and "backfeed"which controls caloricity more sensitive, accurate and faster than the one just with"backfeed"is involved.
实验主要考察了氧的当量比和氧体积分数对气化气组成、碳转化率和气体热值的影响。
The effects of equivalence ratio and volume fraction of oxygen on gas composition, carbon conversion and low heating value (LHV) of fuel gas were investigated through a series of experiments.
双段煤气发生炉气化效率和热效率均比单段式炉高，有上下两个煤气出口，可输出不同热值的煤气。
Double section gas occurrence boiler gasification efficiency and thermal efficiency than single sections of furnace are high, there is two gas exports, and output of gas calorific value of different.
在该模型中考虑了底排出口面积比，排气固相颗粒质量比，燃料热值，燃气分子量，燃烧室总温，飞行马赫数等因素。
In the model the exit area ratio, solid particle mass ratio, fuel enthalpy of combustion, jet gas molecular weight, chamber stagnation temperature, flight Math number etc. have been considered.
在该模型中考虑了底排出口面积比，排气固相颗粒质量比，燃料热值，燃气分子量，燃烧室总温，飞行马赫数等因素。
In the model the exit area ratio, solid particle mass ratio, fuel enthalpy of combustion, jet gas molecular weight, chamber stagnation temperature, flight Math number etc. have been considered.
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