Advancing sustainable building through passive cooling with phase change materials, a comprehensive literature review

Energy and Buildings, Год журнала: 2024, Номер 312, С. 114164 - 114164

Опубликована: Апрель 16, 2024

Phase Change Materials (PCMs) present cutting-edge technology with substantial promise for advancing sustainable and energy-efficient cooling in buildings. These materials can absorb release latent heat during phase transitions, facilitating thermal energy storage temperature regulation. This comprehensive literature review explores various strategies methods implementing passive PCMs The integration of enhances multiple approaches, including solar control, ground cooling, ventilation-based dissipation, radiative mass-based modulation. analysis delves into PCM classifications, encapsulation techniques, melting enthalpies, diverse building envelopes, performance across different climates. findings from this indicated that walls introduce a 2-hour delay transfer mitigate external fluctuations. Windows equipped panels reduce by 66 %. Combining nocturnal leads to interior surface reductions exceeding 13 °C. Natural ventilation results notable savings up 90 % hot combination free reduces charging times 35 while enhancing transfer. Simulations performed the open suggested strategic placement lightweight flux overall consumption. Despite facing challenges related scalability, compatibility, reliability, recycling, solutions demonstrate robust potential. When integrated thoughtfully design, significantly improve efficiency. Experimental validations confirm ranging 14 %, underscoring adaptability techniques leveraging capabilities

Язык: Английский

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Cellulose Diacetate Aerogels with Low Drying Shrinkage, High-Efficient Thermal Insulation, and Superior Mechanical Strength

Gels, Год журнала: 2024, Номер 10(3), С. 210 - 210

Опубликована: Март 21, 2024

The inherent characteristics of cellulose-derived aerogels, such as their natural abundance and environmental friendliness, make them highly interesting. However, its significant shrinkage before after the supercritical drying procedure low mechanical strength limit potential application. Here, we propose a strategy to prepare cellulose diacetate aerogels (CDAAs) with shrinkage, exceptional thermal insulation, superior strength. (radial 1.4%) CDAAs is attributed relative strong networking skeletons, which are greatly formed by tert-butanol solvent exchange in exerting interaction reducing surface tension force. In this case, eventually endowed bulk density 0.069 g cm−3 well. Additionally, as-prepared possess an abundant three-dimensional structure whose pore size concentrated diameter range ~50 nm, result above beneficial for improving insulation performance (thermal conductivity 0.021 W m−1 K−1 at ambient pressure conditions). On other hand, optimal compressive stresses 3% 5% strain 0.22 0.27 MPa respectively, indicating mechanically well robustness. evidence demonstrates indeed properties CDAAs. This work may provide new solution developing kind high-performance aerogel future.

Язык: Английский

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Applications of Novel Combined Controllers for Optimizing Grid-Connected Hybrid Renewable Energy Systems

Sustainability, Год журнала: 2024, Номер 16(16), С. 6825 - 6825

Опубликована: Авг. 9, 2024

Hybrid renewable energy systems (HRES) integrating solar, wind, and storage technologies offer enhanced efficiency reliability for grid-connected applications. However, existing control methods often struggle with maintaining DC voltage stability minimizing power fluctuations, particularly under variable load conditions. This paper addresses this research gap by proposing a novel strategy utilizing PD (1+PI) regulator that combines proportional–integral (PI) proportional–derivative (PD) controllers. Integrated into the HRES maximum point tracking (MPPT), system includes solar panels, unit, wind featuring permanent magnet synchronous generator (PMSG). The plays critical role in stabilizing voltages within collaborates predictive direct (P-DPC) to improve current quality mitigating fluctuations active reactive power. Comparative analysis against traditional shows proposed reduces fluctuation 30% improves utilization 25%, validating its efficacy managing from diverse sources meet nonlinear demands. results demonstrate MPPT P-DPC approaches enhances optimizes HRES, underscoring effectiveness of advanced system.

Язык: Английский

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Electronics Cooling Using Phase Change Materials: An Experimental Study

Lecture notes in networks and systems, Год журнала: 2024, Номер unknown, С. 908 - 917

Опубликована: Янв. 1, 2024

Язык: Английский

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Incorporation of Phase Change Materials in Straw-Based Composites: Thermal Characterization

Lecture notes in networks and systems, Год журнала: 2024, Номер unknown, С. 164 - 171

Опубликована: Янв. 1, 2024

Язык: Английский

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