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| 基于竖壁贴附通风与PV-Trombe墙耦合的办公建筑数值模拟分析 |
| Numerical analysis of an office building with coupled vertical wall-attached ventilation and PV-Trombe wall |
| 投稿时间：2023-12-13 |
| DOI：10.13259/j.cnki.eri.2026.01.001 |
| 中文关键词: 竖壁贴附通风 PV-Trombe墙 数值模拟 室内热环境 |
| 英文关键词:vertical wall attached ventilation PV-Trombe wall numerical simulation indoor thermal environment |
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| 中文摘要: |
| 利用竖壁贴附通风与PV–Trombe墙结合的方式解决混合通风供热时出现的热风停滞在房间顶部造成无效能源消耗的问题，并探讨了两个系统耦合对室内热环境的影响。首先，采用计算流体力学（CFD）数值模拟方法研究了竖壁贴附通风下不同工况对办公室内温度场的影响，然后对竖壁贴附通风与PV–Trombe墙耦合办公室进行了热环境分析。结果表明：当竖壁贴附通风在送风速度为6.0 m/s、送风温度为27.0 ℃时，房间下部区域平均温度可以达到设计温度20.0 ℃，且此时上下部区域温差最小为0.38 ℃。当竖壁贴附通风与PV–Trombe墙耦合后房间下部区域平均温度增加到20.9 ℃，之后将下部区域平均温度降为20.0 ℃时，竖壁贴附通风的送风温度可由27.0 ℃降为24.5 ℃，从而实现利用太阳能节能的目的。 |
| 英文摘要: |
| In mixed ventilation heating systems, hot air often stagnates in the upper zone of the room, leading to inefficient energy use. To address this issue, this study proposes a coupled system combining vertical wall-attached ventilation and a PV-Trombe wall. Using computation fluid dynamics (CFD) simulations, the impact of this coupling on the indoor thermal environment is investigated. Firstly, various operating conditions of vertical wall-attached ventilation in an office are analyzed to assess their effects on the temperature field. Subsequently, the thermal environment of the office with the coupled system is analyzed. The results indicate that, when vertical wall-attached ventilation operates at a supply air velocity of 6.0 m/s and a temperature of 27.0 ℃, the average temperature in the lower area of the room can reach the design temperature of 20.0 ℃, with a minimal temperature difference between the upper and lower parts of 0.38 ℃. Upon coupling with the PV-Trombe wall, the average temperature in the lower area increases to 20.9 ℃. Subsequently, by reducing the supply air temperature of the ventilation system from 27.0 ℃ to 24.5 ℃ while maintaining the lower area at 20.0 ℃, energy savings are achieved through the utilization of solar energy. |
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