Abstract
The results of modeling the temperature distribution in the main pipelines of the heating network taking into account heat exchange with the environment, are presented. The temperature distribution along the pipe section length (supply or return) between the nodes of the heating network is described by the Shukhov formula. The values of the ambient temperature and the thermal resistance from the outer surface of the pipe to the external environment, according to the Shukhov formula, were determined based on the type of pipeline installation (above-ground, underground non-channel, and underground channel). With above-ground laying, the influence of the temperature field of the parallel pipe (adjacent) on the pipe in question was not taken into account. With underground parallel pipe laying, the temperature at the end of the section requires the calculated value of the water temperature of the adjacent pipe, which also depends on the temperature of the pipe in question. Therefore, the calculation is an iterative process of calculating the final temperature of the section until the required accuracy is achieved