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| 热源温度对厂房内热环境影响的模拟分析 |
| Analysing the simulation of the effect of heat source temperature on the thermal environment in a plant room |
| 投稿时间：2025-01-16 修订日期：2025-02-25 |
| DOI： |
| 中文关键词: 自然通风；气楼结构；热源温度 ；横向下沉式；纵向凸出式； |
| 英文关键词:natural ventilation clerestory heat source temperature horizontal sinking type vertical protruding type |
| 基金项目: |
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| 中文摘要: |
| 随着工业厂房的规模日益扩大，厂房内部环境热湿和气态污染物控制的复杂性也显著增加。本文以典型的单跨工业厂房为研究对象，分别选取横向下沉式气楼与纵向凸出式气楼，在设定的厂房结构尺度以及室外微环境风速等参数条件下，借助数值模拟技术，深入分析热源温度对厂房热环境的影响。分析了200 ℃、300 ℃、400 ℃和500 ℃热源温度条件下厂房内部温度场和速度场的分布特性，以及热源附近1 m～6 m范围的作业区域的温度变化特性。结论表明，在高温热源下，下沉式横向气楼的通风效果优于凸出式气楼，更有利于改善作业环境,室内均温降低0.5 ℃，工作区降低9.7 ℃。研究结果为工业热厂房自然通风系统的优化设计提供了参考。 |
| 英文摘要: |
| With the increasing scale of industrial plants, the complexity of the control of heat and humidity and gaseous pollutants in the internal environment of plants has also increased significantly. In this paper, a typical single-span industrial plant is taken as the research object, and the horizontal sunken clerestory and the vertical projecting clerestory are selected respectively to analyse the influence of the heat source temperature on the thermal environment of the plant with the help of numerical simulation under the conditions of the set structural scale of the plant as well as the parameter conditions of the micro-environmental outdoor wind speed. The distribution characteristics of the temperature and velocity fields inside the plant under the conditions of 200 ℃, 300 ℃, 400 ℃ and 500 ℃ heat source temperatures, and the temperature change characteristics of the operation area in the range of 1 m to 6 m near the heat source are analysed. The results show that under high-temperature heat sources, the ventilation effect of the sunken clerestory is better than that of the protruding clerestory. The indoor average temperature is reduced by 0.5 ℃, and reduced by 9.7 ℃ in the working area. The results of the study provide a reference for the optimal design of the natural ventilation system of industrial hot plants. |
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