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Updated: Jun 9, 2025

Design and Optimization Strategies of a High-Performance Vented Box
Published on: June 9, 2023
室内过热和改造的楼的缓解在伦敦,英国
Xiaoyi Li1, Jonathon Taylor1, Phil Symonds1
1UCL Institute for Environmental Design and Engineering, The Bartlett School Environment, Energy & Resources, University College London (UCL), London, UK.
楼改造面临着严重的过热风险,到2080年气温将上升. 具有成本效益的被动通风策略可以减轻这种情况,但在以后可能需要主动冷却. 为了安全,适应应该是强制性的.
科学领域:
- 建筑科学 建筑科学
- 环境科学 环境科学
- 可持续的建筑 可持续的建筑
背景情况:
- 由于对更多空间和物业价值的需求,英国的楼改造正在增加.
- 在楼改造中屋顶下的房间面临着比传统房间更高的过热风险.
- 有限的研究量化了楼过热风险和成本有效的缓解策略.
研究的目的:
- 根据当前和未来的气候场景,评估英国楼改造中的过热风险.
- 评估被动过热适应的有效性和成本效益.
- 为了确定在未来的气候条件下是否需要主动冷却.
主要方法:
- 使用集成环境解决方案虚拟环境进行动态热模拟.
- 在各种气候场景 (2050年代,2080年代) 下,在伦敦模拟一双人住宅.
- 过热度小时和能源消耗的计算,有或没有被动适应 (遮阳,通风,绝缘).
- 应用边际减免成本曲线 (MACC) 来确定成本有效的解决方案.
主要成果:
- 楼空间比传统卧室经历的过热度小时要多得多.
- 预计到2080年,楼的过热度小时将大幅增加.
- 外部百叶窗和夜间净化通风在减少过热方面非常有效.
- 通风策略 (夜间清洗,前进,交叉通风) 是最具成本效益的被动适应.
- 只有被动适应无法消除过热;到20世纪80年代,可能需要主动冷却.
结论:
- 楼改造带来了严重的过热风险,气候变化加剧了这种风险.
- 具有成本效益的被动通风和遮阳可以减轻过热,直到大约2080年.
- 强制性减热适应对于楼改造的建议.
- 易受伤害的人群应避免在炎热天气中占用楼;主动冷却可能变得必不可少.
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