What does the term 'refractory' refer to in power engineering?

The term 'refractory' in power engineering specifically denotes materials that can withstand very high temperatures without losing their structural integrity or melting. These materials are essential in various applications, particularly in furnaces, kilns, and boilers where extreme heat is present.

Refractory materials are often used to line the interiors of high-temperature industrial equipment, ensuring safe and efficient operation by providing thermal insulation and containment. They are formulated to resist thermal shock, corrosion, and wear from chemical reactions, making them critical in maintaining the longevity of equipment and preventing failures that could arise from overheating.

Understanding this concept is crucial in the power engineering field since improperly selected materials can lead to equipment failure, increased downtime, and costly repairs. High-temperature applications necessitate the use of specialized refractories to optimize performance and safety.