Purpose

Sustainable retrofitting of aged buildings plays a significant role in reducing energy demands and greenhouse gas emissions. This study aims to assess the performance and effectiveness of energy retrofit measures (ERMs) for an archetype of aged multi-storey residential buildings.

Design/methodology/approach

The methodology consists of three parts, namely, a desktop study including the selection of a case-study building and identification of ERM options for the building; development of a computer model to simulate the building’s energy use in the baseline scenario and different scenarios of ERMs; and evaluation of the ERMs based on energy-saving rate.

Findings

Among the 13 ERMs tested, lighting-related ERMs were found to be optimal measures while window fin is the least suitable option in terms of energy saving. Based on the research findings, a two-level retrofitting framework was developed for aged multi-storey buildings.

Research limitations/implications

Future studies may take a similar approach of this study to develop retrofitting frameworks for other types of buildings, and further research paper can be extended to study retrofitting for buildings in a district or a region.

Practical implications

The findings of this study can serve as a reference for building owners to select effective ERMs for aged multi-storey buildings, which invariably exist in developed cities.

Originality/value

This study presents a pioneering work where an energy model and a building archetype were used to analyze the energy savings of a variety of ERMs that are applicable to aged multi-storey buildings.

中文翻译：

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多层住宅建筑节能改造

目的

旧建筑的可持续改造在减少能源需求和温室气体排放方面发挥着重要作用。本研究旨在评估旧多层住宅建筑原型的能源改造措施 (ERM) 的性能和有效性。

设计/方法/方法

该方法由三部分组成，即桌面研究，包括选择案例研究建筑和确定建筑的 ERM 选项；开发计算机模型来模拟建筑物在基准情景和 ERM 的不同情景中的能源使用；基于节能率的 ERM 评估。

发现

在测试的 13 个 ERM 中，发现与照明相关的 ERM 是最佳措施，而在节能方面，窗翅是最不合适的选择。根据研究结果，为老旧的多层建筑开发了一个两级改造框架。

研究限制/影响

未来的研究可能会采用与本研究类似的方法来制定其他类型建筑的改造框架，进一步的研究论文可以扩展到研究一个地区或一个地区的建筑改造。

实际影响

这项研究的结果可以作为建筑业主选择有效的ERMs的参考，这些建筑在发达城市总是存在的老旧多层建筑。

原创性/价值

这项研究提出了一项开创性工作，其中使用能源模型和建筑原型来分析适用于老旧多层建筑的各种 ERM 的节能情况。