Bella Dea Manaraenca/Zergane Said2024-09-182024-09-182024-09-18GM/2024https://dspace.univ-msila.dz/handle/123456789/44272In this graduation project, we present a work that involves a new design for the combustion chamber of thermal boilers. This new design features a wavy surface for the combustion chamber, which enhances heat exchange between the fluid and the combustion medium on one hand, and helps to avoid fluid flow disturbances during the process on the other. The study and design of the new shape were conducted using Ansys software, allowing for the monitoring of temperature and pressure developments on the surface and within the combustion chamber. This new approach enables an increase in the efficiency of the thermal boiler using the same amount of methane gas.enThesis