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On the effect of using phase change materials in energy consumption and CO2 emission in buildings in Iran: a climatic and parametric study

机译：关于使用相变材料对伊朗建筑物的能源消耗和CO2排放的影响：气候和参数研究

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摘要

Energy crisis, global warming and other environmental issues are what motivate researchers to find new strategies to reduce energy consumption in buildings. Recently, using phase change materials (PCM) in the building’s envelopes has drawn significant attention as an energy-saving method, which helps in increasing the building’s thermal capacity. In the present research, the effects of the main thermal parameters including climate conditions, PCM layer thickness and its position, wall thermal resistance, and type of HVAC system on the PCM energy-saving potential has been investigated using EnergyPlus software. A climate study has been undertaken in Iran which may be categorized into five climatic regions. Basing on the results, an effective PCM layer is almost 2–4 cm in thickness, and is embedded in the most interior layer of the wall. This conclusion does not depend on the type of HVAC system. In addition, the results showed that the southern strip of Iran, with a warm humid climate, and a relatively high solar irradiation, has the greatest potential to embed PCMs in the building’s envelopes as a factor for reducing its energy demand. This research and its results are useful in getting a better understanding of the PCMs and their effects on reducing the building’s energy consumption and CO2 emission.
机译：能源危机，全球变暖和其他环境问题促使研究人员寻找减少建筑物能耗的新策略。最近，在建筑物的围护结构中使用相变材料（PCM）作为一种节能方法引起了广泛关注，该方法有助于提高建筑物的热容量。在本研究中，已使用EnergyPlus软件研究了主要的热学参数，包括气候条件，PCM层厚度及其位置，壁热阻以及HVAC系统类型对PCM节能潜力的影响。在伊朗进行了一项气候研究，该研究可分为五个气候区域。根据结果​​，有效的PCM层的厚度几乎为2-4 cm，并嵌入墙的最内层。该结论不取决于HVAC系统的类型。此外，结果表明，气候温暖湿润且太阳辐射较高的伊朗南部地区，将PCM嵌入建筑物围护结构的潜力最大，可作为降低其能源需求的一个因素。这项研究及其结果有助于更好地了解PCM及其对降低建筑物的能耗和CO2排放的影响。

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