Study on evaluation method for cross-ventilation environment taken account of steady ventilation flow rates and thermal comfort

考虑稳定通风流量和热舒适性的交叉通风环境评价方法研究

基本信息

  • 批准号:
    18360278
  • 负责人:
  • 金额:
    $ 10.88万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2006
  • 资助国家:
    日本
  • 起止时间:
    2006 至 2007
  • 项目状态:
    已结题

项目摘要

The field experiments, wind tunnel experiments and image analysis have been carried out. The findings of the study can be summarized as follows.(1) The local dynamic similarity model can predict discharge coefficients, which vary with wind direction and opening position, if some requirements are met. Four types of wind tunnel experiments were carried out in this study to investigate how strictly these requirements have to be met when the model is applied to inflow openings. There are no substantial problems in applying the model when the direction or profile of the tangential flow is changed or when there is a wall near the opening.(2) The local dynamic similarity model was coupled with a COMIS network model. The prediction accuracy of ventilation flow rates was verified for one-zone and two-zone building models. The coupled model achieved better predictions of discharge coefficients and ventilation flow rates than the conventional orifice flow model.(3) The airflow characteristics out … More side and inside a cross-ventilated room were measured by ultrasonic anemometers in summer 2006. The major contributions to the energy spectra of cross-ventilation are revealed in the frequency range less than 0.1Hz and that the energy spectra of cross-ventilation contain some region of wave numbers with an exponential decay of k-5/3.(4) When the air velocity was more than 0.5m/s, various air velocity changes and airflow fluctuations in time and space made subjects feel more comfortable under cross-ventilation than under airflows from the air-conditioning system.(5) The influence of air velocity fluctuations on surface temperature fluctuations of thermal mannequin was visualized in the experimental room under cross ventilated cases and under air conditioned cases. An image processing method to transfer the infrared animations to power spectrum images was proposed in order to clarify the frequency of surface temperature fluctuations.(6) The influence of building coverage ratio on ventilation performance was small rather on roofs than on walls. A roof window was found to be a very effective tool for increasing ventilation flow rates especially in densely populated area. Less
现场实验,风洞实验和图像分析已经进行。研究结果可以概括如下。(1)局部动态相似性模型可以预测放电系数,如果满足某些要求,它们会随风向和开放位置而变化。在本研究中进行了四种类型的风洞实验,以调查当将模型应用于流入时必须如何严格满足这些要求,当切向流的方向或剖面发生变化或开口附近有壁时,应用模型没有实质性问题。(2)与Comis网络模型相吻合。对于单区和两区建筑模型,验证了通风流速的预测准确性。与常规孔流量模型相比,获得的排放系数和通风流量的预测更好。(3)在2006年夏季,通过超声波仪的超声波仪来测量的气流特征。 (4)当空气速度大于0.5m/s时,各种空气速度的变化和空间的空气流动波动在交叉换气下的空气和空气波动在空调系统中的空气调节系统中的空气速度上的影响,在交叉换气下的空气流动在空气调节系统中的影响更高。通风案件并在空调案件下。为了阐明表面温度波动的频率,提出了一种将红外动画传递到功率谱图像的图像处理方法。(6)建筑物覆盖率对通风性能的影响很小,而不是在屋顶上而不是在墙壁上。发现屋顶窗是增加通风流速的非常有效的工具,尤其是在人口稠密的区域。较少的

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Experimental Study on Discharge Coefficient of Outflow Opening for Predicting Cross-Ventilation Flow Rate
预测交叉通风流量的出流口流量系数实验研究
通風時と空調時における人体皮膚表面温度変動のパワースペクトルに関する熱画像解析 その1 クラスタ分類による周波数領域別パワースペクトル特性
通风空调过程中人体皮肤表面温度波动功率谱的热图像分析第1部分使用聚类分类的频域功率谱特征
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    飯野 秋成;他4名
  • 通讯作者:
    他4名
A study on evaluation on cross-ventilation performance of openings Part 24 Experimental study on discharge coefficient of outflow opening
孔口交叉通风性能评价研究 第24部分 出水口流量系数试验研究
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    T. Goto;et. al.
  • 通讯作者:
    et. al.
Investigation on applicability of local dynamic similarity model for inflow openings, Prediction accuracy of flow rate of cross-ventilated buildings(Part2)
进风口局部动态相似模型适用性研究、交叉通风建筑流量预测精度(下)
Thermal image analysis of power spectrum of skin temperature change of human body under cross ventilation and air condition Part 2 Relations between power spectrum of skin temperature and wind Velocity
交叉通风空调条件下人体皮肤温度变化功率谱的热图像分析第2部分皮肤温度功率谱与风速的关系
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    T. Annaka;et. al.
  • 通讯作者:
    et. al.
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OHBA Masaaki其他文献

OHBA Masaaki的其他文献

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{{ truncateString('OHBA Masaaki', 18)}}的其他基金

Effect of subjective effort on breaststroke performance at high intensity.
主观努力对高强度蛙泳表现的影响。
  • 批准号:
    24500733
  • 财政年份:
    2012
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Creation and structure analysis of hierarchical metal-complex-assembled space based on lipid bilyers
基于脂质胆的多级金属配合物组装空间的创建与结构分析
  • 批准号:
    24655052
  • 财政年份:
    2012
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Creation of stimulation responsive metal complexes: control of molecular uptake and release, and high sensitive molecular sensing
刺激响应金属配合物的创建:分子摄取和释放的控制以及高灵敏度分子传感
  • 批准号:
    23245014
  • 财政年份:
    2011
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
Controlled Formation of Meso-sized Metal Complex Crystals Using Lipid Bilayer Membrane
使用脂质双层膜控制形成介观尺寸金属络合物晶体
  • 批准号:
    23655055
  • 财政年份:
    2011
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Challenging Exploratory Research
Research and development of the next-generation job performance evaluation system of the cloud era
云时代下一代工作绩效评价系统研发
  • 批准号:
    23510188
  • 财政年份:
    2011
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Rational Construction of Metal Complex-based Polar Magnets Having Multiple Properties
具有多种性能的金属配合物基极性磁体的合理构建
  • 批准号:
    20350026
  • 财政年份:
    2008
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Proposal of evaluation method on naturally ventilated buildings based on evaluation of thermal comfort and energy saving
基于热舒适与节能评价的自然通风建筑评价方法提出
  • 批准号:
    20360265
  • 财政年份:
    2008
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Design and creation of reaction active multinuclear metal complex
反应活性多核金属配合物的设计与制备
  • 批准号:
    14340208
  • 财政年份:
    2002
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Establishment of high-precision model for ventilation flow rate and proposal of natural ventilation design method
高精度通风流量模型的建立及自然通风设计方法的提出
  • 批准号:
    13555163
  • 财政年份:
    2001
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Rational and systematic syntheses and physical properties of 3d-4f mixed metal complexes
3d-4f混合金属配合物的合理系统合成及物理性质
  • 批准号:
    13640561
  • 财政年份:
    2001
  • 资助金额:
    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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热舒适度动态评价方法
  • 批准号:
    22K14374
  • 财政年份:
    2022
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    $ 10.88万
  • 项目类别:
    Grant-in-Aid for Early-Career Scientists
Coupling Phase Change Materials and Model Predictive Controls for Energy Efficiency and Thermal Comfort in Canadian Buildings
耦合相变材料和模型预测控制以提高加拿大建筑的能源效率和热舒适度
  • 批准号:
    RGPIN-2017-05481
  • 财政年份:
    2022
  • 资助金额:
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  • 项目类别:
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了解低辐射内表面材料的特性和使用,提高辐射供暖和制冷系统的热舒适性和节能性能
  • 批准号:
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直观的热舒适控制器 (THERCOM)
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