Built environments contribute significantly to mitigating climate change. However, existing buildings, which form most urban infrastructures, do not typically meet contemporary stringent energy efficiency standards. They are naturally continuously deteriorating, making them a continuous negative contributor to their surrounding environments, which keeps getting worse. Therefore, there is a need to develop performance diagnosis frameworks and approaches for accurate Building Energy Model (BEM) simulations to develop impactful retrofitting design solutions that could make existing buildings perform closer to current efficiency measures. This paper reports on research that focuses explicitly on calibrating envelopes of existing BEMs using drones equipped with thermography sensors. The study specifically focuses on the automation of on-the-fly envelope U-value estimations and verification of calibrated envelope BEMs. The paper examines a renovated campus building in Boston, MA., representing material degradation, thermal bridging, and insulation failures using thermal imagine. A BEM is then calibrated, and post-renovation metered and modeled wintertime heating energy are compared. Goodness of fit measures showcase BEM performance improvement from 21.8%to 0.9%, which demonstrates the utility of the proposed framework. Further research is recommended to expand the focus on anomalies in the envelope and increase the scope from the building scale to the neighborhood scale.

建筑环境为缓解气候变化做出了重要贡献。但是，构成大多数城市基础设施的现有建筑物通常不符合当代严格的能效标准。它们自然会不断恶化，使它们成为周围环境的持续负面贡献者，并不断恶化。因此，需要开发性能诊断框架和方法以进行准确的建筑能耗模型（BEM）模拟，以开发有影响力的改造设计解决方案，以使现有建筑物的性能更接近于当前的能效措施。本文报道了一项研究，该研究明确致力于使用配备有热成像传感器的无人机来校准现有BEM的包络。这项研究特别侧重于实时进行的信封U值估算的自动化和校准信封BEM的验证。本文考察了马萨诸塞州波士顿市一栋经过翻新的校园建筑，该建筑使用热成像技术来说明材料的退化，热桥和绝缘故障。然后对BEM进行校准，并比较翻新后计量和建模的冬季采暖能量。拟合度度量值显示BEM性能从21.8％提高到0.9％，这证明了建议框架的实用性。建议进一步研究，以扩大对围护结构异常的关注，并将范围从建筑规模扩展到邻里规模。用热想象来表示材料退化，热桥和绝缘故障。然后对BEM进行校准，并比较翻新后计量和建模的冬季采暖能量。拟合度度量值显示BEM性能从21.8％提高到0.9％，这证明了建议框架的实用性。建议进一步研究，以扩大对围护结构异常的关注，并将范围从建筑规模扩展到邻里规模。用热想象来表示材料退化，热桥和绝缘故障。然后对BEM进行校准，并比较翻新后计量和建模的冬季采暖能量。拟合度度量值显示BEM性能从21.8％提高到0.9％，这证明了建议框架的实用性。建议进一步研究，以扩大对围护结构异常的关注，并将范围从建筑规模扩展到邻里规模。