Analisis Konduktivitas Termal Material Komposit Berbahan Dasar Silika Pada Limbah Sekam Padi dan Tanah Liat Sebagai Bahan Dasar Pembuatan Keramik Menggunakan Metode Lee"™s Disc
Keywords:
thermal conductivity, Lee"™s Disc method, composite ceramics, silicaAbstract
Every material has thermal conductivity properties that are used in specific applications according to its requirements. One such material is ceramic, which requires specific thermal conductivity values depending on its usage, such as in furnace linings to retain heat within the combustion chamber and prevent heat loss. This research was conducted to determine the thermal conductivity values of composite ceramic materials made from clay with the addition of rice husk silica at 0, 20, 30, and 40 wt%. The purpose of this study is to analyze the effect of silica composition from rice husk waste on the thermal conductivity of composite materials using the Lee's Disc method. The mixing process was done manually, followed by sintering at a temperature of 950 °C for 120 minutes. The results of the thermal conductivity tests using the Lee's Disc method showed that the addition of more silica to the specimen increased the specimen's thermal conductivity, due to the formation of heat paths within the material. The K4 specimen, with 40% silica addition, exhibited the highest average thermal conductivity value of 0.15238 W/m °C. Based on the analysis, the K2 specimen with 20% silica addition had the lowest average thermal conductivity value of 0.13673 W/m °C, indicating that this specimen can be used as a lining for high-temperature combustion chambers due to its excellent thermal insulation properties.
References
Alam, M. (2012). Lee’s and Charlton’s Method for Investigation of Thermal Conductivity of Insulating Materials. IOSR Journal of Mechanical and Civil Engineering, 3(1), 53–60.
Ashby, M. F., & Jones, D. R. H. (2013). Engineering materials 2: An introduction to microstructures and processing (4 ed., Vol. 1). Elsevier/Butterworth-Heinemann.
Bergman, T. L., & Incropera, F. P. (Ed.). (2011). Fundamentals of heat and mass transfer (7th ed). Wiley.
Luh, B. S. (Ed.). (1991). Rice: Volume I. Production/Volume II. Utilization. Springer US. https://doi.org/10.1007/978-1-4899-3754-4
Manshu Gupta, & Jeyanthi Subramanian. (2019). An Experimental Investigation on the Acoustic and Thermal Properties of Copper Reinforced Sustainable Foam. International Journal of Engineering Research And, 8(08), 86–91.
Ngafwan, N. (2017). Pemanfaatan Limbah Sekam Padi Untuk Pembuatan Komposit Hambat Panas Menggunakan Matrik Resin. Media Mesin: Majalah Teknik Mesin, 7(1), 17–23.
Pandey, A., Kattamuri, P. K., & Sastry, B. S. (2021). Measurement of Thermal Conductivity of Sandstone Using Lee’s Apparatus: A Case Study. Mining, Metallurgy & Exploration, 38(5), 1–7.
Rahmayanti, D. (2016). Karakteristik Sifat Termal (Dta-Tga) Dan Konduktivitas Termal Keramik Cordierite Berbasis Silika Sekam Padi Dengan Penambahan Alumina (0, 20, 25, Dan 30 Wt%). 1, 1–32.
