Effects of Some Geometric Parameters in Energy-Efficient Heat Distribution of Pre-Insulated Double Pipes

Author:

Krawczyk Dorota AnnaORCID,Teleszewski Tomasz Janusz

Abstract

In the case of a computational example, a few aspects of the twin pipe geometry are presented, which have an effect on heat losses through double heating ducts. Proper positioning of the supply and return ducts in common thermal insulation can significantly improve the efficiency of the heating network and reduce heat losses. In this work, unit heat losses generated by the example double heating ducts and unit heat flux of the supply, return and exchange between the supply and return pipes as a function of the distance between the supply and return pipes were determined. On the basis of graphs of unit heat fluxes as a function of the distance between the duct and the return, one can formulate the optimal solution of the position, the supply and return duct in common insulation. In an optimal solution for the location of the supply and return ducts in a common insulation, both the total heat losses and the heat flux exchanged between the supply and return ducts should be minimal. All calculations were made in a proprietary calculation program written in Fortran language within the framework of the VIPSKILLS project. The work also presents solutions of temperature fields and heatlines in the cross-section of the duct of a dual heating network in the presented example.

Publisher

MDPI AG

Subject

General Medicine

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