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首页> 外文会议>International Conference on Applied Computational Fluid Dynamics October 17-20, 2000 Beijing China >Numerical simulation for thermal performance of high temperature air combustion boiler
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Numerical simulation for thermal performance of high temperature air combustion boiler

机译：高温空气燃烧锅炉热性能的数值模拟

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摘要

Thermal performance in the experiments and three-dimensional numerical simulations for a high temperature air combustion boiler where fuel can be efficiently combusted by high temperature preheated air (800deg C-1000deg C) are examined. For a MEET I boiler already installed in Tokyo Institute of Technology, there are good agreement for heat transfer to boiler tubes between experiment and numerical simulation for not only non-diluted natural gas also diluted natural gas combustion. Temperature distribution becomes almost uniform, average temperatures are 1349K for natural gas and 1251K for natural gas diluted by argon, respectively. For a scale-up MEET II boiler which can combust not only natural gas but also low calorific gas large-scale (e.g. full gasification gas obtained from coal or wastes) and will be demonstrated since this spring, temperature distribution is very uniform for both left side and diagonal combustion. Averaged temperature in the boiler is about 1300K for each case.
机译：研究了高温空气燃烧锅炉的实验和三维数值模拟中的热性能，该燃料可以通过高温预热空气（800℃至1000℃）有效地燃烧。对于已经在东京工业大学安装的MEET I锅炉来说，在实验和数值模拟之间，不仅非稀释天然气而且稀释天然气燃烧都将热量传给锅炉管，这是一个很好的协议。温度分布几乎变得均匀，天然气的平均温度分别为1349K和被氩气稀释的天然气为1251K。对于规模扩大的MEET II锅炉，该锅炉不仅可以燃烧天然气，而且还可以大规模燃烧低热值的气体（例如，从煤或废物中获得的全部气化气），并且将在今年春季进行演示，这两个锅炉的温度分布非常均匀侧面和对角燃烧。每种情况下锅炉的平均温度约为1300K。

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