TY - JOUR N2 - Simplifications used in simulation program codes require the use of substitute parameters in the material databases (also called apparent or substitutive). On the one hand, they formally fit into the records used in the heat flow model, porosity, properties etc. and on the other hand they should be determined in conditions most similar to the real casting-mould system. The article presents results of a research on thermophysical parameters of gypsum mould used for precision casting moulds. Experiments were carried out on a cylindrical mould made of Plasticast gypsum, in which the heat source was a cylinder filled with liquid aluminium alloy of the temperature of 655°C. Energetic validation was carried out by using the NovaFlow&Solid ver. 6.3 simulation code. As a result of validation tests, substitute thermophysical parameters of gypsum were determined. For determined parameters, best-fit of solidification time from the experiment and simulation was obtained and the curves of gypsum mass heating were satisfactorily recreate. L1 - http://journals.pan.pl/Content/114669/PDF/AFE%201_2020_01.pdf L2 - http://journals.pan.pl/Content/114669 PY - 2020 IS - No 1 EP - 8 DO - 10.24425/afe.2020.131274 KW - Gypsum mould KW - validation KW - Materials date base KW - Simulation code KW - Thermophysical parameters A1 - Bernat, Ł. A1 - Popielarski, P. PB - The Katowice Branch of the Polish Academy of Sciences VL - vol. 20 DA - 2019.12.09 T1 - Identification of Substitute Thermophysical Properties of Gypsum Mould SP - 5 UR - http://journals.pan.pl/dlibra/publication/edition/114669 T2 - Archives of Foundry Engineering ER -