四川锦屏山电站施工辅助洞通风设计方案分析

四川锦屏山电站施工辅助隧道属特长隧道,本文根据其特殊性,重点比较了目前常用的几种隧道通风方式,最终选择一种较为合理的通风方案.     

矿井通风网络三维仿真系统的开发

系统采用可视化对象编程语言Visual Basic6.0,结合SQL Server2000数据库技术、ODBC数据引擎、Solidworks2003三维软件,开发一个矿井通风网络三维仿真软件。用以解决矿井通风信息管理,三维矿井网络图形的自动生成,矿井通风网络解算,风网参数的自动标注。可动态、真实的反映矿井通风的实时面貌,为矿井通风管理者监控井下通风状况,提供直观、及时、可靠的反馈信息,为其进行有效地井下通风调节,提供有力的安全保证。     

某大厦地下防空洞处理探讨

通过某大厦在基础施工时对地下防空洞的处理实例，阐述了对不同类型的人防工事进行处理的方法。     

室内空气品质与置换通风

介绍了室内空气品质的问题及提高室內空气品质的手段,比较了混合通风和置换通风的优缺点,指出置换通风是保证室內空气品质值得推荐的一种通风方式.     

灯泡贯流式水轮发电机通风的研究和计算

本文用分布集中参数的构成通风网络，用函数风阻法建立多回路非线性方程一，对灯泡贯流式水轮发电机的通风系统进行综合的分析计算，并要根据计算的结果，提出了一些合理化建议。     

大型下料坑吹吸式通风除尘系统设计

分析了下料坑灰尘产生的原因和特点；设计了新型合理的吹吸式除尘系统；阐述了主要参数的确定。该系统已投入使用，取得了良好的除尘效果。     

矿井通风网络非稳定流动数值解收敛性分析

利用分析数学的压缩映射原理，对矿井通风网络非稳定流动数学模型进行了分析，得出了数学模型数值解收敛的条件．确定了以惯性系数排序选择最小生成树的回路选择方案，为矿井通风网络非稳定流动数学模型数值解的收敛性提供了理论依据．     

综放沿空小断面留巷技术研究

随着开采强度的增加，综放工作面的瓦斯超限问题日益突出．以王庄煤矿5201综放面为例，提出采用综放沿空小断面留巷技术，布置J型通风系统，治理综放工作面瓦斯超限．由关键块的分析和数值模拟结果，确定了综放沿空小断面留巷的断面形状，给出了斜梁的合理支护设计．矿压观测结果表明，留巷小断面变形以及留巷煤帮深部位移有较好的收敛性，能够满足工作面抽放瓦斯的需要．     

小麦调质通风技术的研究

以小麦为原料,对低水分小麦的吸湿状态进行了研究.研究发现:在一定范围内,湿度相同的条件下,谷物的吸湿效果随通风量的增加而提高.试验所确定的最佳条件为:加湿2 h,通自然风1 h的通风模式,加湿湿度为90%～95%,通风量为5～20 m3/t·h.通自然风的方式可消除在加湿过程中产生的水分含量梯度.     

A natural ventilation wind tower with heat pipe heat recovery for cold climates

Commercial wind towers are passive ventilation technology based on traditional wind towers of the Middle East. Typical operation of wind towers in cold – mild climates is generally limited to summer-seasons as the outdoor air is too cold to be introduced into spaces for the majority of the year. In addition, the use of natural ventilation solutions has been seen to increase heat loss in buildings and lead to increased energy cost. Wind towers are normally shut down for the sake of avoiding indoor heating energy losses during winter months. Consequently, the concentration of pollutants has seen to rise above the guideline levels, which can lead to ill health. To improve the year-round capabilities of wind towers, a heat recovery system utilising the combination of heat pipes and heat sink was incorporated into a multi-directional wind tower. This study investigates the potential of this concept through the use of numerical analysis and wind tunnel experiments for validation. The findings showed that the wind tower with heat pipes was capable of meeting the required ventilation rates above an inlet air velocity of 1 m/s. In addition to sufficient ventilation, the integration of heat pipes had a positive effect on thermal performance of the wind tower; it raised the supply air by up to 4.5 K. The technology presented here is subject to a patent application (PCT/GB2014/052263).