Simulation of the distribution of heat in the measuring block national production calorimetry DSC-500

This article addresses the issues of computer simulation of heat transfer in the metering block, differential scanning calorimeter DSC-500. Discusses questions of numerical parameters of the elements of the measuring block, whether or not they change in the course of the experiment, namely the impact parameter, thermal conductivity of the substrate material, the degree of heating, the heat loss to the surrounding space, thermal inertia of materials. Conducted structural modeling of the measuring block of the calorimeter, allowing, further, to simplify the calculation of parameters of regulators the temperature of the external heater and microaggregates. According to the results of the experiments, the analytical description of the heat diffusion and the structural model was synthesized computer model of the measuring block of the domestic differential scanning calorimeter DSC-500. In the numerical model, implemented accounting changes in the coefficient of thermal resistance of air at high temperature substrate heating (> 400 °C) and normal atmospheric pressure. The analysis of the obtained simulation results, expressed according to the formation of differential temperature over time when exposed to the system speed input to the Sigma-function.