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首页> 外文会议>Annual North American Waste to Energy Conference(NAWTEC14); 20060501-03; Tampa,FL(US) >Problem Solving Tools in Waste-To-Energy Systems
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Problem Solving Tools in Waste-To-Energy Systems

机译：垃圾发电系统中的问题解决工具

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Covanta is using a multifaceted approach to problem solving in Waste-to-Energy systems which combines several types of computer modeling with physical cold flow models, field testing, and engineering experience. This problem-solving approach is applied to boiler corrosion, gas and particulate flow patterns, reagent injection, and APC system issues. Our goals are to bring the most appropriate tools to each issue and incorporate results back into the engineering approach in order to continually improve our technical capabilities. Several types of computer modeling are used. A commercially available energy balance program is used for steam cycle evaluations and boiler energy balance and heat transfer calculations. Computational Fluid Dynamics (CFD) models are developed to investigate temperature and flow patterns where local conditions must be understood in detail. We have made extensive use of cold flow models to improve performance of APC systems, and to evaluate overfire air mixing in furnaces, and flow distribution through tube banks in boilers. Field testing is used to investigate temperature fluctuations and distributions, flow stratification, corrosion rates, and to validate modeling or analytical results. Each of these approaches has its own set of advantages, disadvantages, and limitations, and must always be combined with a healthy dose of operating and engineering experience. Analytical work is done by, or in close cooperation with, our operations and engineering staff with many years of experience operating, designing, and modifying boilers, APC systems, and related equipment. This integrated approach has yielded significant improvements in many cases and is being used in increasingly complex applications.
机译：Covanta正在采用多方面的方法来解决垃圾发电系统中的问题，该方法将多种类型的计算机建模与物理冷流模型，现场测试和工程经验相结合。这种解决问题的方法适用于锅炉腐蚀，气体和颗粒流态，试剂注入和APC系统问题。我们的目标是为每个问题提供最合适的工具，并将结果纳入工程方法中，以不断提高我们的技术能力。使用了几种类型的计算机建模。商业上可用的能量平衡程序用于蒸汽循环评估以及锅炉能量平衡和传热计算。开发计算流体动力学（CFD）模型以研究必须详细了解当地条件的温度和流量模式。我们已广泛使用冷流模型来改善APC系统的性能，并评估炉中的过度燃烧空气混合以及通过锅炉管束的流量分布。现场测试用于调查温度波动和分布，流分层，腐蚀速率，并验证建模或分析结果。这些方法中的每一种都有其自身的优点，缺点和局限性，并且必须始终结合健康的操作和工程经验。分析工作是由我们的操作和工程人员或与他们紧密合作的，他们具有多年的操作，设计和修改锅炉，APC系统及相关设备的经验。这种集成的方法在许多情况下已经取得了显着的改进，并且正用于越来越复杂的应用程序中。

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