Calculation of heat loss for choosing a heating system in the chamber

The work studied the features of the chamber (linear dimensions, wall materials, etc.). It was revealed that the smaller the temperature difference between the environment and the air temperature inside the chamber, the lower the percentage of losses in the chamber. It has been established that due to the convective action, the hot air in the chamber predominantly rises upward. In this case, the heating elements were connected in series with each other. Power was supplied from a 220 V network through power lines. We have developed a system for monitoring the temperature inside the chamber and lamp operation in the Automation Studio 5.2 program. This system allows one to regulate the air temperature inside the chamber. Calculations were also carried out to identify the effect of temperature differences on heat loss in the chamber device. Experiments and engineering calculations have shown that in a small chamber the temperature required for seed germination cannot be achieved immediately. In the two - position closed chamber load plot, the energy consumption area is 9.4% larger than the energy consumption areas of the subsequent periodic energy consumption areas. It can be seen that heating the chamber itself requires additional electricity.