The recent research on Active Insulation Systems (AIS) in residential buildings, aimed at enhancing energy savings and reducing peak demand, marks a significant step in sustainable building design. However, while AIS represents an innovative approach, Phase Change Materials (PCMs) offer a more immediate and feasible solution to the challenges outlined in this study.
The AIS Approach: A Novel but Complex Solution
The research on AIS focuses on dynamic envelopes using thermal insulation, thermal energy storage, and controls. Although AIS can actively manage thermal transport, the complexity and cost of implementing such systems, especially in existing structures, pose significant challenges.
PCMs: A Simpler, More Immediate Solution
In contrast, PCMs provide a simpler and more immediately feasible alternative. Their ability to store and release heat effectively makes them ideal for retrofitting existing buildings, a crucial aspect as we aim to reduce overall energy consumption and greenhouse gas emissions. PCMs can be easily integrated into various building components, offering a less intrusive and more cost-effective approach than the more complex AIS.
Advantages Over Traditional Methods
Unlike traditional insulation methods, which are static, PCMs dynamically respond to temperature changes, thereby enhancing the building's thermal performance without the need for complex control systems. This adaptability makes PCMs a more practical choice for immediate implementation in a wide range of building types and climates.
Supporting Electrification and Reducing Peak Demand
As grids become more electrified, the demand-side management becomes crucial. PCMs can help smooth out energy demands, particularly during peak hours, thus supporting grid stability. This aspect aligns perfectly with the goals of the AIS research, but with added simplicity and feasibility.
The Path Forward: Embracing PCM Technology
The future of sustainable building lies in technologies that are not only effective but also practical and scalable. PCMs meet these criteria, offering a bridge to a more energy-efficient future. Their integration into building design should be prioritized as a key strategy in our transition towards more sustainable and energy-efficient building practices.
In conclusion, while AIS presents an innovative approach to building energy efficiency, the simplicity, ease of implementation, and immediate benefits of PCMs make them a more viable solution for today's energy challenges. As we continue to explore sustainable building technologies, the focus should be on solutions that balance innovation with practicality, and in this regard, PCMs stand out as a clear choice.
Citation: Niraj Kunwar, Mikael Salonvaara, Emishaw Iffa, Som Shrestha, Diana Hun,
Performance assessment of active insulation systems in residential buildings for energy savings and peak demand reduction,
Applied Energy,
Volume 348,
2023,
121209,
ISSN 0306-2619,
https://doi.org/10.1016/j.apenergy.2023.121209.
(https://www.sciencedirect.com/science/article/pii/S0306261923005731)
