Scientists have used varying levels of Al₂O₃ and ZnO paraffin wax to improve the electrical and thermal performance of a photovoltaic-thermal (PVT) system. They have also developed a prediction model ...

Phase transformations—in which a material changes from one crystal structure to another, thereby acquiring dramatically different properties—are ubiquitous in nature. Understanding the microscopic ...

PCMs are materials that absorb and release thermal energy through changes in their physical state. They can be categorized as liquid-gas, solid-solid, solid-gas, and solid-liquid, depending on their ...