Abstract
The article presents an analysis of the influence of selection a pipe diameter on the operating costs of a heating installation in the context of the expected increase in electricity charges required to motive the main circulation pump of the installation. As a result of a combination of several factors affecting the Polish energy sector based on coal, energy price increases seem inevitable. Polish government’s response to the forecasted increases in charges for electricity is a proposal to introduce subsidies for electricity bills. The article presents the results of the analysis of pipe selection from several standard types, including investment and operating costs, and a comparison of results before and after the increase in electricity charges and including the influence of limescale precipitation on the internal surfaces of pipe walls. The results analyzes show that the increase in charges for electricity affects the selection of the pipe diameter, like the problem of the formation of limescale can significantly reduce the efficiency of the installation and in extreme cases, can lead to a complete stop of installation.
Highlights
In 2018, in Poland through media reports [1,2,3], speculations have started on the rise in electricity prices in 2019, which according to various sources can range from 10 to 80%
The increase in electricity prices [4,5,6] will effect on every area of the economy as well as daily life, including industry and residential installations powered by electricity
In order to reduce the influence on daily life of electricity price increases, the Polish government is analyzing and considering introducing a system of subsidies for electricity bills
Summary
In 2018, in Poland through media reports [1,2,3], speculations have started on the rise in electricity prices in 2019, which according to various sources can range from 10 to 80%. As a reason for the increase in electricity prices in Poland are the price increase in the global coal market, the increase in prices of CO2 emission allowances, and the costs of buying certificates related to the obligation to support renewable energy sources. The increase in electricity prices [4,5,6] will effect on every area of the economy as well as daily life, including industry and residential installations powered by electricity. On the example of a heating installation, where the main circulation pump of the installation, powered by electricity, during the heating season (usually from September to April), works almost continuously in this time, which results in the amount of electricity collected from the network, it achieves significant amounts, and in the context of increased operating costs, it can have a significant influence on the design process of a given system. The article presents an analysis of the selection of pipes for heating installations [7, 8] in the context of the expected price increases for electricity, taking into account possible complications (precipitation of limescale on the internal walls of pipes) created during the operation of a heating installation
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