广州住宅地下车库采光通风井节能评价及优化设计研究

发布时间：2018-05-11 22:09

本文选题：地下车库 + 采光通风井　；参考：《华南理工大学》2015年硕士论文

【摘要】：地下车库采光通风井的设计可以改善车库内的光环境和热环境,合理的采光通风井设计对人体健康和建筑节能都有重要意义。本文通过现场实测和模拟分析的方法对广州某住宅区地下车库的采光和通风进行研究,对其采光通风井设计的节能效果进行评价,并针对其采光通风井设计存在的问题提出优化方案。本文在以下几个方面开展工作:第一,简要回顾国内外学者在地下车库采光和通风方面所做的工作,以及对地下车库采光通风井的类型进行概括总结。第二,对广州岭南湾畔住宅区地下车库的光环境进行实测和模拟研究。通过对其光环境实测发现,该小区地下车库存在设计照度值过大、采光通风井设计不合理、灯具控制方式不合理等问题。对某一采光井下的采光系数实测来对比验证ECOTECT采光模拟软件的可行性,并利用软件对地下车库的采光进行模拟分析,分析表明采光通风井的设计可以通过利用天然采光节省照明能耗。第三,对广州岭南湾畔住宅区地下车库的通风进行实地测试,通过对地下车库内1.5m高度处的风速、空气温度以及壁面温度和CO浓度的实测发现,车库内热环境受车库内车辆的排热影响较大,采光通风井的风压通风作用对于改善车库的热环境较明显,依靠自然通风可以全部排出汽车废气中的CO。采用实验验证了的FLUENT数值模拟方法,对地下车库的通风进行模拟分析,结果表明在夏季典型气象日车流量最多的时刻,地下车库自然通风量可以满足标准规定,不运行风机是可行的,节省了风机的运行能耗。第四,通过对采光通风井的采光特性和不同尺寸正方形采光通风井的辐射半径研究,针对岭南湾畔住宅区地下车库采光通风井设计所存在的采光问题,提出5种优化设计方案,并采用ECOTECT软件对不同方案进行模拟分析选出采光最优方案,然后利用FLUENT软件验证其通风节能效果,最后对采光通风井的设计提出建议与改造措施。
[Abstract]:The design of lighting ventilation well in underground garage can improve the light environment and thermal environment in the garage. Reasonable design of lighting ventilation well is of great significance to human health and building energy saving. In this paper, the lighting and ventilation of underground garage in a residential area in Guangzhou are studied by the method of field measurement and simulation analysis, and the energy-saving effect of the design of lighting ventilation well is evaluated. The optimization scheme is put forward to solve the problems existing in the design of the lighting ventilation well. The main work of this paper is as follows: first, briefly review the work of domestic and foreign scholars in underground garage lighting and ventilation, and summarize the types of underground garage lighting ventilation well. Secondly, the light environment of underground garage in Lingnan Bay Residential District, Guangzhou is measured and simulated. By measuring the light environment, it is found that there are some problems in the underground garage of this district, such as the design illuminance value is too large, the design of daylighting ventilation well is unreasonable, the control mode of lamps and lanterns is not reasonable, and so on. The feasibility of ECOTECT lighting simulation software is compared and verified by measuring the lighting coefficient of a certain lighting underground, and the lighting of underground garage is simulated and analyzed by using the software. The analysis shows that the design of daylighting ventilation well can save lighting energy by using natural lighting. Thirdly, the ventilation of underground garage in Lingnan Bay residential district in Guangzhou is tested. The wind speed, air temperature, wall temperature and CO concentration are measured at 1.5m height in underground garage. The heat environment in the garage is greatly affected by the exhaust heat of the vehicle in the garage. The ventilation effect of the air pressure in the daylighting ventilation well is more obvious to improve the thermal environment of the garage. Depending on the natural ventilation, the CO-exhaust can be completely discharged from the exhaust gas of the vehicle. The FLUENT numerical simulation method is used to simulate and analyze the ventilation of underground garage. The results show that the natural ventilation rate of underground garage can meet the standard requirement at the time when the traffic flow is the most in the typical weather day in summer. It is feasible to not run fan, saving energy consumption of fan. Fourthly, through the study of the lighting characteristics of the lighting ventilation well and the radiation radius of the square diametric ventilation well with different sizes, aiming at the lighting problems existing in the design of the lighting ventilation well of underground garage in the residential area of Lingnan Bay, five optimal design schemes are put forward. ECOTECT software is used to simulate and analyze the different schemes to select the optimal scheme of lighting, and then FLUENT software is used to verify its ventilation and energy saving effect. Finally, suggestions and renovation measures are put forward for the design of daylighting ventilation shaft.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU96

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