ISFTA is one of the six Institutes of CERTH, which is the largest research center in Northern Greece. The mission of CERTH/ISFTA is to carry out fundamental and applied research emphasizing on development of novel products and services for solid fuels and their residues.
The Institute is located at Ptolemais, while also maintaining offices at the cities of Thessaloniki and Athens. CERTH / ISFTA is the leading research organization in Greece for solid fuels. Among its activities is the CFD simulation of coal fired boilers. The main technologies investigated, using the Fluent platform provided by SIMTEC, are the Pulverized Fuel (PF) combustion and the Circulating Fluidized Bed Combustion (CFBC).
Regarding PF modeling CERTH/ISFTA has developed custom built subroutines (User Defined Functions – UDFs) for two and three step intrinsic char combustion model, drag coefficient for non –spherical particles and radiation models that where integrated to Fluent platform. Moreover, as concerns the challenging CFB modeling, CERTH / ISFTA has developed Energy Minimization Multi-Scale scheme (EMMS) for the simulation of the drag coefficient inside fluidized beds.
SIMTEC is a valuable partner for CERTH / ISFTA since it provides consulting and guidance especially for proper integration of new theories in the Fluent platform.