Within the framework of the activity 3.2, a program was developed, which includes a calculation model to describe the operation of the fog unit. The program is based on a pre-built mathematical model in the Excel environment (activity 1.3), which has been refined and transferred to another environment, facilitating faster calculations. Program written in PYTHON 3.7 using Visual Studio 2019. It includes the calculation of the thermal-physical parameters, the auxiliary equations and the calculation of changes in the main parameters. The main parameters, whose changes are considered in the model, are: injected water temperature, temperature of the flue gas, diameter and velocity of the water droplets, concentration of particulate matter and moisture content of the gas. Using the model data obtained, the heat capacity of the fog unit was also calculated.
The experimental data set includes measurements at three different boiler capacities (10 kW to 30 kW), injected water temperature (20 – 40 oC) and each water injection nozzle. Various injected water flow rates in each mode (45 l/h to 342 l/h) were tested, as well as the effect of oxygen concentration on the flue gas parameters.
Testing of the developed model takes place using data obtained from experiments as input data for calculation. The obtained results are summarized and compared with the data of the corresponding experiment at the beginning and end of the experiment to evaluate the correspondence of theoretically obtained parameters to the real situation. Reviewing the results obtained helps to improve and refine the model.
