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首页> 外文期刊>Solar Energy >Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates
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Ventilated Trombe wall as a passive solar heating and cooling retrofitting approach; a low-tech design for off-grid settlements in semi-arid climates

机译：通风Trombe墙作为被动式太阳能加热和冷却改造方法；针对半干旱气候下的离网住区的低技术设计

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In the coming years, it is anticipated that if we continue with the same pace of energy consumption, communities will continue to face three major challenges; a mounting increase in energy demands, pollution, and global warming. On a local scale, Egypt is experiencing one of its most serious energy crises in decades. The energy consumed in indoor cooling and heating is the biggest portion of total energy consumption in residential buildings. This paper is an experimental simulation study for building retrofitting in off-grid settlements in semi-arid climates, using Trombe wall as a low-tech passive heating and cooling solution. In this study, we made developments to the conventional classic Trombe wall using occupant-centered design and living lab experimental methods. The thermal efficiency of the proposed Trombe wall design is simulated during winter and summer peaks. In the proposed design we used gray paint instead of typical black paint in addition to 15 cm reversible natural wool insulation and two 3 mm thick roll-up wool curtains. The new design reduced the heating load by 94% and reduced the cooling load by 73% compared to the base case with an annual energy savings of 53,631 kW h and a reduction in CO2 emissions of 144,267 kg of CO2. The living lab test proved that the proposed design of the Trombe wall is economically viable and the payback time is 7 months. It is recommended that the proposed design be monitored for a whole year to have an accurate assessment of its efficiency. A post occupancy evaluation is also needed to measure local residents' acceptance and perceived comfort after retrofitting. (C) 2015 Elsevier Ltd. All rights reserved.
机译：预计在未来几年中，如果我们继续以相同的能源消耗速度发展，社区将继续面临三大挑战；能源需求，污染和全球气候变暖的增加。在地方范围内，埃及正经历着几十年来最严重的能源危机之一。室内制冷和供暖消耗的能量是住宅建筑总能耗的最大部分。本文是一项实验模拟研究，用于使用Trombe墙作为低技术的被动供热和制冷解决方案，在半干旱气候下的离网住区进行建筑改造。在这项研究中，我们使用了以乘员为中心的设计和生活实验室实验方法，对传统的经典Trombe墙进行了开发。拟议的Trombe墙设计的热效率是在冬季和夏季高峰期模拟的。在建议的设计中，除了15厘米可逆天然羊毛保温材料和两个3毫米厚的可卷起的羊毛帘之外，我们还使用灰色涂料代替了典型的黑色涂料。与基本案例相比，新设计将供暖负荷降低了94％，将制冷负荷降低了73％，每年节省的能源为53,631 kWh，二氧化碳排放量减少了144,267千克二氧化碳。现场实验室测试证明，所建议的Trombe墙设计在经济上可行，投资回收期为7个月。建议对建议的设计进行全年监控，以准确评估其效率。还需要进行后期占用评估，以评估改造后当地居民的接受程度和舒适感。 （C）2015 Elsevier Ltd.保留所有权利。

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