Thermal analysis of the heating system of the Small Bath in ancient Phaselis

The heating engineering aspect of ancient Roman baths has not been sufficiently analyzed with respect to their architectural and archaeological aspects. In this study, the Small Bath in Phaselis is taken as a reference and a thermal analysis of this bath is performed. In this analysis, the heat loss from the reconstructed bath is calculated and the mass flow rate of the fuel and flue gas are determined. Then the required design temperature and the thermal conductivity values are estimated, and the convection coefficients for different surfaces are determined. A computer program based on the finite difference method is prepared and the temperature distributions, heat transfer to the bath and the change of flue gas temperature are calculated by using this program.