Accurate and precise heat flow data is essential for transitioning from lab to plant. A high-performance heating and cooling system combined with a sensitive temperature measurement and control system is a prerequisite to obtaining accurate and precise heat information about a chemical process. This includes details about the heat of the reaction, the total heat flow balance, the mass and heat transfer, and the specific heat of the reaction mass.The total heat flow balance of a chemical process itself includes a variety of thermal effects, such as the accumulation of heat, heat exchange due to reactant or solvent additions, heat due to changing viscosity, heat loss, etc.For reactions that are run under changing temperature conditions, heat accumulation becomes an important factor in the calculation of the heat of the reaction (heat released as a function of time). In this case the correction from isothermal to non-isothermal temperature control is essential and the Thermal Analysis (Ta) model plays an extremely important role.METTLER TOLEDO reaction calorimeters and
iControl software suite use sophisticated calculation algorithms. These take into account the dynamic behavior of the reactor wall, the heat capacities of the vessel, and the reactor inserts – providing calorimetric data of maximum accuracy and precision.