Abstract

Green buildings and sustainable designs require architectural designers to go beyond the basic building codes to improve overall building energy performance, optimize building ventilation, minimize life-cycle environmental impacts and make comfortable inside living environments. This paper briefly introduces the green design of the Lituo farmers market. Improving air quality inside of the built environment is the key for farmers market ventilation design as part of the green designs. The empirical method is used to design the height of the atrium of the farmers market to meet the ventilation requirements. A pressure loss model for outlet wire mesh screens was used for both empirical calculations and CFD. A simplified thermal boundary conditions for modeling human thermal effects were used to analyze the heat exchanges between the human body and the environment. The solar effects were only considered on the roof of the building. The outlet average exhaust gas speeds were measured and compared with CFD results. The results showed that the current method can help ventilation design and predicate the ventilation flow reasonably. The method developed in this study can be extended for other types of the building natural ventilation design and analysis.

摘要

绿色建筑和可持续设计要求建筑设计师超越基本建筑规范，以提高整体建筑能源性能、优化建筑通风、最大限度地减少生命周期环境影响并营造舒适的室内居住环境。本文简要介绍了立沱农贸市场的绿色设计。作为绿色设计的一部分，改善建筑环境内部的空气质量是农贸市场通风设计的关键。采用经验法设计农贸市场中庭高度以满足通风要求。出口丝网筛的压力损失模型用于经验计算和 CFD。用于模拟人体热效应的简化热边界条件用于分析人体与环境之间的热交换。太阳能效应仅在建筑物的屋顶上被考虑。测量出口平均排气速度并与 CFD 结果进行比较。结果表明，该方法可以帮助通风设计和合理预测通风流量。本研究开发的方法可以扩展到其他类型的建筑自然通风设计和分析。