- Time:Apr 26, 2023
Magnesia bricks are relatively common alkaline refractory materials. How much do you know about the specific heat capacity of magnesia bricks? The following is an introduction to the specific heat capacity of magnesia bricks.
1. Specific heat capacity of magnesia bricks
Magnesia brick is a high-temperature refractory material with magnesium oxide as the main component. It is usually used in various high-temperature equipment, such as metallurgical furnaces, heating furnaces, kilns, etc. Specific heat capacity refers to the ratio of the heat absorbed or released by a unit mass of substance to its temperature change when the temperature changes. Compared with other materials, the specific heat capacity of magnesia bricks is about 0.85-1.25 J/g·℃. Common ones include 0.85 J/g·℃, 0.92 J/g·℃, 1.0 J/g·℃, 1.2 J/g·℃, 1.25 J/g·℃.
2. Factors affecting the specific heat capacity of magnesia bricks
The specific heat capacity of magnesia bricks is affected by many factors, such as density, temperature, impurity content, etc. Generally speaking, the specific heat capacity of magnesia bricks increases slightly with the increase of temperature, does not change much below 800 °C, and increases above 1000 °C. The specific heat capacity of magnesia bricks is also affected by the manufacturing process and specific formula. Generally speaking, adding flux and other materials can increase the specific heat capacity of magnesia bricks.
The specific heat capacity of magnesia bricks affects its thermal conductivity and thermal storage performance during high temperature operation. In the process of production and application, it is necessary to select the appropriate brick type and formula according to the specific process requirements and use environment to meet the thermal engineering requirements and performance indicators of high-temperature equipment.
It should be noted that the specific heat capacity of magnesia bricks from different manufacturers may have certain differences, and the use environment and conditions will also affect their actual performance. Therefore, in specific applications, corresponding analysis and consideration should be carried out according to the actual situation.
