Abstract
This article describes the results of energy efficiency analysis of various types of pipeline thermal insulation in a district heating system and equipment. The mathematical relations used in calculating the thickness of the thermal insulation for heat pipes and equipment are given. The concept of the critical value of the thermal insulation outside diameter of the heat pipe is described. An equation is presented that determines the ineffective thickness of the heat pipe insulation. A solution to this equation is proposed using numerical methods, namely, Newton’s method. The results of calculations of ineffective thermal insulation diameters for various parameters of the coolant, the diameters of the pipeline itself, and various heat-insulating materials are presented. The obtained data are analyzed. Recommendations are given for the correct selection and calculation of the thermal insulation thickness of district heating pipelines, as well as for the reconstruction of the existing ones.
Published Version
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