简单的解决方案可以改善秘鲁高原小屋的热舒适度
Enrique Mejia-Solis1,2, Jaime Arias1, Björn Palm1
1Department of Energy Technology, Royal Institute of Technology KTH, SE-100 44 Stockholm, Sweden.
Heliyon
|September 28, 2023
概括
简单的家庭改造可以显著减少秘鲁山区贫困家庭的室内寒冷暴露. 隔热屋顶和门,除了减少空气透,大大减少不适的时间,改善生活条件.
科学领域:
- 建筑科学 建筑科学
- 环境健康 环境健康
- 低成本的住房解决方案
背景情况:
- 秘鲁山区贫困的农村家庭面临室内极端寒冷 (接近0°C).
- 室内寒冷导致严重的呼吸道疾病和过度的冬季死亡率.
- 缺乏技术指导阻碍了有效的低成本房屋改造.
研究的目的:
- 以数值评估简单,低成本的装修对室内不适时间的影响.
- 确定改造的最佳组合,以提高传统小屋的热舒适度.
- 分析不适时间对透减少的敏感性.
主要方法:
- 利用EnergyPlus和Python进行典型的单间小屋的数值建模.
- 用现场测量对模型进行校准,以准确估计透率.
- 采用蒙特卡洛和灵敏度分析来量化不确定性和减少透的影响.
主要成果:
- 基准案例小屋44%的时间经历了不适,平均空气交换率为29.1小时-1.1.
- 增加屋顶和门隔热 (成本为286美元) 将不适的时间减少到37%.
- 在绝缘设计中,进一步将透率降低到4.1小时-1小时,使得不适时间减少到16%.
结论:
- 简单的,低成本的装修,如绝缘和透减少是有效的减轻室内寒冷.
- 优化设计,考虑到成本和不适时间,可以显著提高弱势群体的热舒适度.
- 这些发现为家庭投资有限资源改善住房提供了宝贵的技术指导.
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