TY - JOUR
T1 - Development of an electric arc furnace steel slag-based ceramic material for high temperature thermal energy storage applications
AU - Lopez Ferber, Nicolas
AU - Al Naimi, Kholoud M.
AU - Hoffmann, Jean Francois
AU - Al-Ali, Khalid
AU - Calvet, Nicolas
N1 - Funding Information:
The experimental results in this study were obtained by Dr. Kholoud Al Naimi and Dr. Nicolas Lopez Ferber, respectively a PhD candidate and a post-doctoral fellow at Khalifa University. Dr. Kholoud Al Naimi was internally funded by Khalifa University through the student support grant # 8474000072 . Dr. Nicolas Lopez Ferber was internally funded by Khalifa University under the CIRA project named SUPERTRACK 2019-015 . Partial financial support from Khalifa University through project RC2-2019-007 is gratefully acknowledged. Seramic Materials Limited Company kindly allowed the authors to utilize their equipment in their state-of-the-art ceramic material laboratory at the Masdar Tech Park, as an in-kind contribution to the project. We would also like to thank Emirates Steel and Mawaad Environmental Services for kindly providing the raw materials.
Funding Information:
The experimental results in this study were obtained by Dr. Kholoud Al Naimi and Dr. Nicolas Lopez Ferber, respectively a PhD candidate and a post-doctoral fellow at Khalifa University. Dr. Kholoud Al Naimi was internally funded by Khalifa University through the student support grant #8474000072. Dr. Nicolas Lopez Ferber was internally funded by Khalifa University under the CIRA project named SUPERTRACK 2019-015. Partial financial support from Khalifa University through project RC2-2019-007 is gratefully acknowledged. Seramic Materials Limited Company kindly allowed the authors to utilize their equipment in their state-of-the-art ceramic material laboratory at the Masdar Tech Park, as an in-kind contribution to the project. We would also like to thank Emirates Steel and Mawaad Environmental Services for kindly providing the raw materials.
Publisher Copyright:
© 2022 The Authors
PY - 2022/7
Y1 - 2022/7
N2 - This paper details the development process of ceramics made out of 100% electric arc furnace (EAF) steel slag, to be used as a shaped homogenous thermal energy storage (TES) media in packed-bed thermocline systems for high-temperatures industrial waste heat recovery, concentrated solar power (CSP), and Carnot batteries applications, among others. The main objective of this study was to investigate the influence of different process parameters on the properties of the resulting ceramics. The samples have been characterized in terms of bulk density, apparent solid density, and water absorption to identify the best values for different process parameter. The best properties were obtained for samples prepared with heat-treated slag powders, pressed at 300 MPa and fired at 1300 °C for 8 h under a static air atmosphere. The optimal bulk density was 3.1 g/cm3, and the water absorption was 1.2%wt. The measured specific heat capacity was 1026, 1181 and 1216 J/(kg.K) at 200, 400 and 600 °C, respectively, while the thermal conductivity values were 1.53, 1.50 and 1.37 W/(m.K) at the same temperatures. This work confirms the feasibility of manufacturing TES ceramics out of EAF steel slags, using equipment and techniques well-known in the refractory industry.
AB - This paper details the development process of ceramics made out of 100% electric arc furnace (EAF) steel slag, to be used as a shaped homogenous thermal energy storage (TES) media in packed-bed thermocline systems for high-temperatures industrial waste heat recovery, concentrated solar power (CSP), and Carnot batteries applications, among others. The main objective of this study was to investigate the influence of different process parameters on the properties of the resulting ceramics. The samples have been characterized in terms of bulk density, apparent solid density, and water absorption to identify the best values for different process parameter. The best properties were obtained for samples prepared with heat-treated slag powders, pressed at 300 MPa and fired at 1300 °C for 8 h under a static air atmosphere. The optimal bulk density was 3.1 g/cm3, and the water absorption was 1.2%wt. The measured specific heat capacity was 1026, 1181 and 1216 J/(kg.K) at 200, 400 and 600 °C, respectively, while the thermal conductivity values were 1.53, 1.50 and 1.37 W/(m.K) at the same temperatures. This work confirms the feasibility of manufacturing TES ceramics out of EAF steel slags, using equipment and techniques well-known in the refractory industry.
KW - Electric arc furnace (EAF) steel slag
KW - Packed-bed thermocline system
KW - Sintering
KW - Thermal energy storage (TES) material
KW - Waste-based ceramic
UR - http://www.scopus.com/inward/record.url?scp=85126644374&partnerID=8YFLogxK
U2 - 10.1016/j.est.2022.104408
DO - 10.1016/j.est.2022.104408
M3 - Article
AN - SCOPUS:85126644374
SN - 2352-152X
VL - 51
JO - Journal of Energy Storage
JF - Journal of Energy Storage
M1 - 104408
ER -