Sensitivity analysis of mathematical models for final product properties: Link to DTG curve
Abstract
Compressive strength and water absorption of fired heavy clay products varies with firing temperatures, but not entirely according to linear function, as it is mostly reported in literature. Also, differential thermo-gravimetric curve shows many turnovers in all the samples tested, within observed temperature range (820-920 degrees C). The aim of this research was to find a cause for such behaviour. Except derivative weight (DW), compressive strength (CS) and water absorption (WA) are chosen as outputs that represent properties of the fired samples. These parameters can be calculated using second order polynomial models (SOPs), on the basis of content of major oxides and firing temperature, as shown in our previous research. Sensitivity analysis was used as the effective approach in testing changes observed in the SOP outputs, due to the variation of content of major oxides for +1% or -1% of their nominal value. This study reveals in more detail the most significant influence of inputs... (SiO2, Al2O3, Fe2O3 and CaO content) over the outputs (DW, CS and WA) in every observed firing temperature. Addition or lowering of content of major oxides can both increase and decrease all the observed outputs, as revealed using sensitivity analysis.
Keywords:
Sensitivity analysis / Second order polynomial model / Properties variation / Heavy clay products / Differential thermo-gravimetrySource:
Ceramics International, 2013, 39, 6, 6277-6285Publisher:
- Elsevier Sci Ltd, Oxford
Funding / projects:
- Development and application of multifunctional materials using domestic raw materials in upgraded processing lines (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45008)
- Osmotic dehydration of food - energy and ecological aspects of sustainable production (RS-MESTD-Technological Development (TD or TR)-31055)
DOI: 10.1016/j.ceramint.2013.01.049
ISSN: 0272-8842
WoS: 000320295300032
Scopus: 2-s2.0-84877701738
Collections
Institution/Community
Institut za ispitivanje materijalaTY - JOUR AU - Arsenović, Milica AU - Pezo, Lato AU - Stanković, Slavka AU - Radojević, Zagorka PY - 2013 UR - http://rims.institutims.rs/handle/123456789/212 AB - Compressive strength and water absorption of fired heavy clay products varies with firing temperatures, but not entirely according to linear function, as it is mostly reported in literature. Also, differential thermo-gravimetric curve shows many turnovers in all the samples tested, within observed temperature range (820-920 degrees C). The aim of this research was to find a cause for such behaviour. Except derivative weight (DW), compressive strength (CS) and water absorption (WA) are chosen as outputs that represent properties of the fired samples. These parameters can be calculated using second order polynomial models (SOPs), on the basis of content of major oxides and firing temperature, as shown in our previous research. Sensitivity analysis was used as the effective approach in testing changes observed in the SOP outputs, due to the variation of content of major oxides for +1% or -1% of their nominal value. This study reveals in more detail the most significant influence of inputs (SiO2, Al2O3, Fe2O3 and CaO content) over the outputs (DW, CS and WA) in every observed firing temperature. Addition or lowering of content of major oxides can both increase and decrease all the observed outputs, as revealed using sensitivity analysis. PB - Elsevier Sci Ltd, Oxford T2 - Ceramics International T1 - Sensitivity analysis of mathematical models for final product properties: Link to DTG curve EP - 6285 IS - 6 SP - 6277 VL - 39 DO - 10.1016/j.ceramint.2013.01.049 ER -
@article{ author = "Arsenović, Milica and Pezo, Lato and Stanković, Slavka and Radojević, Zagorka", year = "2013", abstract = "Compressive strength and water absorption of fired heavy clay products varies with firing temperatures, but not entirely according to linear function, as it is mostly reported in literature. Also, differential thermo-gravimetric curve shows many turnovers in all the samples tested, within observed temperature range (820-920 degrees C). The aim of this research was to find a cause for such behaviour. Except derivative weight (DW), compressive strength (CS) and water absorption (WA) are chosen as outputs that represent properties of the fired samples. These parameters can be calculated using second order polynomial models (SOPs), on the basis of content of major oxides and firing temperature, as shown in our previous research. Sensitivity analysis was used as the effective approach in testing changes observed in the SOP outputs, due to the variation of content of major oxides for +1% or -1% of their nominal value. This study reveals in more detail the most significant influence of inputs (SiO2, Al2O3, Fe2O3 and CaO content) over the outputs (DW, CS and WA) in every observed firing temperature. Addition or lowering of content of major oxides can both increase and decrease all the observed outputs, as revealed using sensitivity analysis.", publisher = "Elsevier Sci Ltd, Oxford", journal = "Ceramics International", title = "Sensitivity analysis of mathematical models for final product properties: Link to DTG curve", pages = "6285-6277", number = "6", volume = "39", doi = "10.1016/j.ceramint.2013.01.049" }
Arsenović, M., Pezo, L., Stanković, S.,& Radojević, Z.. (2013). Sensitivity analysis of mathematical models for final product properties: Link to DTG curve. in Ceramics International Elsevier Sci Ltd, Oxford., 39(6), 6277-6285. https://doi.org/10.1016/j.ceramint.2013.01.049
Arsenović M, Pezo L, Stanković S, Radojević Z. Sensitivity analysis of mathematical models for final product properties: Link to DTG curve. in Ceramics International. 2013;39(6):6277-6285. doi:10.1016/j.ceramint.2013.01.049 .
Arsenović, Milica, Pezo, Lato, Stanković, Slavka, Radojević, Zagorka, "Sensitivity analysis of mathematical models for final product properties: Link to DTG curve" in Ceramics International, 39, no. 6 (2013):6277-6285, https://doi.org/10.1016/j.ceramint.2013.01.049 . .