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TYK-SiC Heat Storage Elements

SiC Heat Storage Elements 
for Regenerative Burner

TYK's SiC is a ceramic with high thermal conductivity, excellent thermal shock resistance, and outstanding heat resistance. Utilizing these characteristics, TYK Co., Ltd. has developed SiC heat storage elements specifically for regenerative burners. Compared to general alumina heat storage media, SiC heat storage elements have the ability to quickly absorb and release heat. By efficiently retaining heat, SiC heat storage elements contribute to reducing energy loss in regenerative burners and aid in cost-cutting energy consumption.

High Durability

TYK-SiC heat storage elements resist thermal shock, reducing the risk of cracking during rapid temperature changes.

High Thermal Conductivity

These elements absorb and release heat quickly, outperforming alumina and cordierite.

Eco-Friendly

Efficient heat exchange helps reduce fuel usage and CO2 emissions, leading to energy savings.

SiC has High Thermal Conductivity

A comparison of the thermal conductivity of TYK-SiC heat storage balls and commercially available alumina heat storage balls revealed significant differences in thermal conductivity.Generally, thermographic images taken 30 and 60 seconds after the alternating combustion time in regenerative burners showed that alumina balls, which have lower thermal conductivity, were locally heated. In contrast, SiC, with its high thermal conductivity, quickly heated up throughout.This test demonstrates that TYK-SiC can efficiently exchange heat.

Comparison with Alumina Balls

Properties

TYK-SiC Alumina97%
Porosity ％ 30 <10
Coefficient of Thermal Expansion x10^-6 4.5 7.8
Specific Heat Capacity J/gK 0.7 0.8
Thermal Conductivity W/mK 70 15

Comparison of Characteristics

TYK-SiC Alumina97%
Bulk Density 0.9 - 1.1 g/cc 2.0 - 2.2 g/cc
Characteristics High Thermal Conductivity &
High Durability
 Low Thermal 
Conductivity & 
Low Durability

Approximately 4.6 times higher thermal conductivity than conventional alumina heat storage units! 
It also has high durability and can reduce the frequency of maintenance!

Thermal Shock Resistance

SiC excels in thermal shock resistance!

Materials were heated up to 1000 degrees Celsius and then rapidly cooled in water to test their ability to withstand sudden temperature changes. The results showed that SiC has excellent thermal shock resistance.

Comparison between Honeycomb and Ball Types

Honeycomb-heat strage

Honeycomb Type 

・Stackable installation
・​Low pressure loss
・​Wide heat transfer area
・Custom Shapes Available

Applications:

・​​Various industrial furnaces
・​Regenerative Thermal Oxidizers (RTO)

Honeycomb-heat strage

Ball Type (Φ19mm, Φ13mm)

・​Easy to install
・High thermal shock resistance
・​Less prone to clogging

Applications:

・​Various industrial furnaces

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