Heat flow calorimetry is the simplest and most robust method for determining the heat released by a chemical reaction or physical process. It is supported by all METTLER TOLEDO reaction calorimetry workstations. Heat flow calorimetry is highly sensitive and applicable under most conditions, and it offers excellent repeatability.The heat flow calorimetry principle is based on measuring the temperature difference across the reactor wall, which is then converted into a heat flow by measuring its heat transfer coefficient.The heat transfer coefficient depends on the type of chemistry, reaction conditions, and the reactor material and is determined using a reference electrical heater.To get real and accurate data, each workstation and reactor is provided with a Thermal Analysis (Ta) model that corrects the heat flow through the reactor walls, considering the thermal conductivity and thickness of the reactor wall, the thermal resistance of the reaction mass film, and the thermal resistance of the oil film.The method of heat flow calorimetry is applicable on both small and large scales and is the basis for all
chemical process development projects, process scale-up, and
chemical process safety investigations.