Studying the Features of Method Choice of Heat Networks Laying Which Affect Their Energy Efficiency

Purpose of research. Most of the heating network pipelines in our country have a significant service life exceeding 25 years. Due to the use of obsolete thermal insulation materials, not a reasonable choice of heat networks installation methods which not meet modern requirements of standards and technical documentation, long-haul pipelines, during the coolant transportation around 60% of heat energy is lost. As a result, the implementation of energy saving measures and improving the energy efficiency of heating networks that do not require significant investment is currently most relevant.
Methods. The paper considers one of the ways to save energy in the heat supply system by choosing the most effective method of pipelines laying. There have been performed thermal calculations, taking into account the availability of different equipment of the heat network, the same type of pipeline sections of the heat network using the same thermal insulation material for different laying methods.
Results.The given paper presents the results of an analytical study of the requirements for choosing a method for laying heating network pipelines in order to systematize and summarize the data of reference and modern regulatory literature, as well as generalized results of design work and recommendations of expert organizations, which plays a significant role in choosing a construction site, as well as identifying factors that can improve the energy efficiency of heat networks. One of these factors is the choice of the most effective method of pipelines laying.
Conclusion. A comprehensive review of the set of conditions (geological, climatic, structural and others) in which the projected heat network pipelines will be operating allows us to choose the most effective method of laying. Owing to that method, it is possible to reduce heat energy losses by 50-80%.

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