| 摘要: |
| 工业建筑内存在多个高温热源，所形成的热羽流对建筑气流组织的影响极大。本文以一座新能源电池材料生产车间为例，通过6种不同的送风速度和6种不同的送风口高度来研究多热源热羽流与送风射流的相互作用规律，以及其相互作用对工业建筑热环境的影响。结果表明：多热源耦合热羽流以高温热源为主导，羽流相互靠拢形成集中的卷吸区域，最大轴心速度约为0.64m/s。利用热羽流引导气流组织向上运动，可使高温空气快速排出，从而有效地改善建筑工作区热环境。降低送风速度能够减少对热羽流上流的抑制作用，随着送风速度从14.8m/s降至2.96m/s，车间工作区温度从39.2℃降至31.6℃。降低送风口高度能够增加对热羽流上流的促进作用，随着送风口高度从5m降至1.7m，车间工作区温度从34.9℃降至30.3℃。研究结果为工业建筑的通风设计提供了参考。 |
| 关键词: 工业建筑 热羽流 送风射流 相互作用 热环境 |
| DOI： |
| 投稿时间：2022-08-15 修订日期：2022-10-12
录用日期：2022-11-04 |
| 基金项目:湖南省自然科学基金项目，湖南省教育厅资助科研项目 |
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| Influence of Multi-source Heat Plume and Ventilation Interaction on Thermal Environment of Industrial Buildings |
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| Abstract: |
| There are many high-temperature heat sources in industrial buildings, and the thermal plume formed has a great impact on the air distribution. In this paper, taking a new energy battery material production workshop as an example, 6 different air supply speeds and 6 different air supply port heights were used to study the interaction law of multi-heat source heat plume and supply air jet, as well as the effect of interaction on industrial building thermal environment. The results show that the multi-heat source coupled heat plume is dominated by the high temperature heat source, the plumes close to each other to form a concentrated entrainment space, and the max axial velocity is about 0.64m/s. Using the thermal plume to guide the upward movement of the air distribution can quickly exhaust the high-temperature air, so as to effectively improve the thermal environment of the building work area. Reducing the air supply speed can reduce the inhibition effect on the heat plume upstream. With the air supply speed decreasing from 14.8m/s to 2.96m/s, the workshop working area temperature decreases from 39.2℃ to 31.6℃. Reducing the height of the air supply outlet can increase the promotion effect on the heat plume upstream. With the height of the air supply outlet decreasing from 5m to 1.7m, the temperature of the workshop working area decreases from 34.9℃ to 30.3℃. The results can be helpful in the ventilation design of industrial buildings. |
| Key words: industrial building thermal plume ventilation jet interaction thermal environment |
