首页 馆藏资源 舆情信息 标准服务 科研活动 关于我们
现行 SF-86-14-1
到馆提醒
收藏跟踪
购买正版
Introducing Coal-Water Mix Fuels 引入水煤混合燃料
本综述讨论了在供暖应用中与水煤燃料(CWF)的配方和使用相关的一般注意事项。CWF用煤的选择包括考虑煤挥发物、热值、灰分组成和含量以及平衡水分。可用于改变燃料混合物性质的添加剂包括分散剂、pH调节剂、稳定剂和杀生物剂。所生产配方的流动特性为非牛顿性质(与时间相关的粘度(触变性)和与剪切速率相关的粘度)。 然而,管道系统中的压降仍然是可预测的,其中包括一些技术和结果的讨论。CWF中的载水导致锅炉效率降低、火焰温度降低和锅炉烟气流量增加。这些影响的大小被量化为燃料水含量的函数。还讨论了实现火焰稳定性的方法。本文回顾了BNLs在1000000 Btu/h锅炉系统中的燃烧经验。研究包括中等负荷泥浆、高负荷泥浆、油共烧和燃烧空气预热。 单位:双引文:研讨会,ASHRAE交易,1986年,第92卷,pt。1B,旧金山
General considerations associated with the formulation and use of coal-water fuels (CWF) in heating applications are discussed in this overview. Selection of coal for CWF involves consideration of coal volatiles, heating value, ash composition and content, and equilibrium moisture.Additives that can be used to modify the fuel mix properties include dispersants, pH modifiers, stabilizers, and biocides. The flow properties of the formulations produced are non-Newtonian (both time-dependent viscosity (thixotropic) and shear rate dependent viscosity). Pressure drops in piping systems are, however, still predictable and some discussion of techniques and results is included.The carrier water in CWF leads to reduced boiler efficiency, lowered flame temperatures, and increased boiler flue gas flow. The magnitude of these effects is quantified as a function of fuel water content. Approaches toward achieving flame stability are also discussed.BNLs combustion experience with boiler systems in the 1,000,000 Btu/h size class is reviewed. Studies have included moderately loaded slurries, highly loaded slurries, oil cofiring, and combustion air preheat.Units: Dual
分类信息
发布单位或类别: 未知国家-其他未分类
关联关系
研制信息
相似标准/计划/法规