The results of the implementation of SAS technology for the renovation and life extension of district heating systems

Abstract

The analysis of the results of large-scale work on the introduction of the facilities of complex technology, based on changing the functional surface properties of pipelines and heat power equipment using surface-active substances (SAS) technology is carried out. The volume of SAS technology realization has been specified in the heating supply systems of the Russian Federation's cities since 2003. An evaluation of the technical and economic efficiency of SAS technology, as an example of the typical elements of district heating systems based on hot water heating plants, including their boilers, heating networks, heating stations and buildings heating systems, is presented.

Hydrophobization of Metal Surfaces

“…Analysis of published works demonstrates that this interest is attributed to the fact that hydrophobic surfaces are characterized by certain unique properties required for numerous applications. For instance, hydrophobic surfaces promote decrease of hydraulic resistance upon transportation of fluid mediums [1]- [3], reduction of ice formation rates [4]- [6], intensification of heat exchange [7], and other positive effects, in particular, hydrophobic surfaces are characterized by higher corrosion resistance [2].…”