Open AccessMethodology for calculating previously unaccounted for heat losses of internal hot water supply systems
Author(s) -
Roman Hurgin,
Evgeniy Nosorev
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1030/1/012058
Subject(s) - pipeline (software) , pipeline transport , heat transfer , environmental science , mechanics , computer science , nuclear engineering , process engineering , mechanical engineering , engineering , environmental engineering , physics
For a long time, design engineers calculated heat losses according to the method proposed in SNiP 2.04.01-85*, i.e by multiplying the specific value of heat losses per unit length of the pipeline. While this methodology is good enough for simple calculations, it lacks in preciseness, which in turn can lead to an overengineering of the hot water system. In 2017, SP 30.13330.2016 was introduced, in which the calculation of heat loss by pipelines of the hot water system from SNiP was changed to include previously unaccounted for heat losses that were not calculated. Now this methodology almost fully reflects the physical processes of heat transfer, considers the corresponding design parameters, and delivers more precise calculations, than SNiP methodology, which in turn allows to account for precise numbers of heat loss in hot water system. Detailed analysis of formulas and their components will provide better understanding of processes which affect heat losses in hot water systems.