Calculation formula of thermal conductivity of aluminum silicate fiber blanket

Aluminum silicate fiber blanket is a lightweight refractory material. The bulk density of conventional fiber blanket is 96Kg/m ³ And 128Kg/m ³ Two, low bulk density, low thermal conductivity and good thermal insulation effect.
The thermal conductivity refers to the heat transferred through the area of 1 square meter in 1 hour by a temperature difference of 1 degree (K, ℃) on the surface of 1 meter thick material under stable heat transfer conditions. The unit is W/(m · K), and K can be replaced by ℃.

The thermal conductivity of aluminum silicate fiber blanket is used to characterize the thermal conductivity of ceramic fiber blanket. The thermal conductivity directly determines the thermal insulation effect of the fiber blanket.
There are many factors affecting the thermal conductivity of aluminum silicate fiber blanket, which mainly depend on the structure, bulk density, temperature, pressure, ambient atmosphere and humidity of ceramic fiber blanket.
Calculation formula of thermal conductivity of aluminum silicate fiber blanket
The thermal conductivity of aluminum silicate fiber blanket can be determined by test or calculation.

（1） Empirical formula calculation method:
Thermal conductivity of ceramic fiber blanket made by melting natural materials such as sapphire and coal gangue:

λt=0.035+0.203(t均/1000)²  kcal.m.h.℃

1Kcal/m.h.℃=1.163W/m.k。

RDGW-112 and RDGW-212 apply to the above formula
Calculation of thermal conductivity of composite composed of SiO2, Al2O3 and other compounds:

λt=0.054+0.272（t均/1000)²  W/m.k

RDGW-312, RDGW-422, RDGW-612 and RDGW-512 apply to the above formula

（2） Thermal conductivity meter test method:
Hot wire method is characterized by small temperature difference, less time consumption, low accuracy, and is suitable for isotropic thermal insulation materials with low thermal conductivity.
Plate method, features: slow speed, high precision, suitable for thin plate materials.
Users of aluminum silicate fiber blanket can calculate the thermal conductivity at the corresponding temperature according to the working temperature of the kiln, or contact us to provide the thermal conductivity at the relevant temperature of the aluminum silicate fiber blanket. The editor provides you with the formula for calculating the thermal conductivity of aluminum silicate fiber blanket. You can have a general understanding of it. I hope the above content will help you.