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首页> 外文会议>International Conference on Sustainable Synergies from Buildings to the Urban Scale >Effects of Climate Change on the Energy Required for the Treatment of Ventilation Fresh Air in HVAC Systems The Case of Athens and Thessaloniki
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Effects of Climate Change on the Energy Required for the Treatment of Ventilation Fresh Air in HVAC Systems The Case of Athens and Thessaloniki

机译：气候变化对HVAC系统治疗通风新空气所需的能量的影响雅典和塞萨洛尼基的案例

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All current observations as well as projected changes suggest an increase of ambient air temperature, especially in large urban areas. The energy consumption for ventilation will be affected by the impacts of this change in climate because ventilation loads are varying directly with the local ambient temperature and humidity conditions. This is very important in urban areas because mechanical ventilation systems, which consume significant amounts of energy, are installed in most of the buildings of the tertiary sector. In planning the ventilation of a building, the ventilation air supply and the energy that will be consumed should be known to the designer of the HVAC system from the initial stages of the task, in order to estimate the operating costs of the system. A user-friendly tool for estimating the ventilation energy requirements is the "ventilation load index (VLI)". In this work, an analysis that shows the changes of the VLI during the last three decades (1983-2012) for the two largest cities in Greece, namely Athens and Thessaloniki, is presented. Using appropriate calculation formulas and climatic data, VLI in heating and cooling period, and for 8, 16 and 24-hour operation periods of ventilation system is calculated. The results are synoptically presented in tables and diagrams. The study shows that the energy demands in cooling period are increased, more intensively during nighttime, and in heating period are decreased. However, the total ventilation energy demands on a yearly basis are decreased from decade to decade.
机译：目前所有的意见以及预期变化表明环境空气温度的上升，尤其是在大城市。通风的能源消费量将因通风负荷与当地的环境温度和湿度条件下直接改变这种改变气候的影响而受到影响。因为机械通风系统，消耗显著的能量，安装在大部分第三产业的建筑，这是在城市地区非常重要的。在规划，建筑，通风供气和将要消耗应该知道从工作的初始阶段HVAC系统的设计能量的通风，以评估该系统的运营成本。用于估计通风能量要求一个用户友好的工具是“换气负荷指数（VLI）”。在这项工作中，分析，显示了过去三个十年（1983年至二〇一二年）在希腊，雅典就是和萨洛尼卡的两个最大的城市在的VLI的变化，呈现。在加热使用适当的计算公式和气候数据，VLI和冷却期间，以及用于通风系统的8,16和24小时运行期间被计算。结果在表格和图表呈现的概括性。研究表明，在冷却期间的能量需求的增加，更集中在夜间，并且在加热期间被减少。但是，每年总通风能源需求从十年到十年下降。

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