A study of phase change materials for energy conservation in classic multi-layered Victorian-era buildings: A practical approach for balancing heritage preservation and climate neutrality in temperate climates

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作   者：

Ronny Stanley Achaku;  Liang Li;  Yong Kang Chen; 

作者机构：

Hatfield;  College of Engineering;  Design and Physical Sciences;  Middlesex UB8 3PH;  School of Physics;  Engineering and Computer Science;  University of Hertfordshire;  Herts AL10 9AB;  UK;  Brunel University London;  Uxbridge; 

关键词：

Phase change materials (PCMs);  Multi-layer;  Buildings;  Thermal energy storage (TES); 

期刊名称：

Construction and Building Materials

i s s n：

0950-0618

年卷期：

2025 年 464 卷 Feb.21 期

页   码：

140075.1-140075.12

页   码：

摘   要：

An integration of phase change materials (PCMs) into building designs presents a promising avenue for energy conservation, temperature stabilisation and zero emissions. European countries, renowned for their historical Victorian-era buildings, grapple with the challenge of balancing preservation imperatives with modern energy efficiency requirements. This study investigates the high efficacy of PCM integration in a typical thick multi-layer structure characterised by the external walls of Victorian-era buildings in a temperate climate, aiming to align with the EUs climate-neutral strategy by 2050 while safeguarding heritage structures. The experimental findings have shown that PCM layers positioned near the outer wall of multi-layered structures in temperate climates often failed to attain the requisite phase change temperatures. However, the identified optimal placements between 88 % and 93 % away from the walls external surface resulted in significant energy savings. Typically, a reduction in cooling energy consumption by 5.36.2 % was observed. The strategic positioning of the PCM layers contributed to enhanced indoor comfort levels, as evidenced by an expanded temperature range up to 7.9 and mitigated peak temperature fluctuations of 1.74 to 2.0 . These findings underscore the practical benefits of PCM application in thick and multi-layered building designs. By bolstering peak temperature reduction and thermal regulation without compromising architectural integrity, a PCM integration has the potential to be a viable solution to the challenges posed by energy consumption in historical buildings.