In the regions of the Far North the surface method of pipeline laying is becoming more and more widespread, which has a number of advantages in comparison with pipe-laying in perennially frozen soils. To protect pipelines from freezing, cold water pipelines are laid in common insulation with one or more pipelines that transport hot water ...

Calculation and adjustment of regulators, as well as the choice of optimal modes of operation of thermal engineering objects (mine calorifiers, boilers, boiler rooms, boiler houses, heat and water supply systems of mines, settlements and cities) are determined by the value of the atmospheric air temperature ...

To control inertial objects, a control method based on introducing into the control action the derivative of the process, obtained in the form of a pulse repetition frequency, can be used. The method combines three-position control with a continuous control action based on deviation, and pulse control in the dead band of the three-position regulation.