ENSURING THE AUTHORITY OF THERMOSTATIC VALVES IN A WATER HEATING SYSTEM THAT DOES NOT CORRESPOND TO THE PROJECT
Keywords:
water heating system, thermostatic valve, hydraulic calculation, throughput, circulation pump, valve authorityAbstract
When designing water heating systems, it is necessary to avoid unjustified use of unnecessary equipment, exceeding diameters beyond the required values, etc. In reality, there are deviations from the design during installation, which lead to the need to revise the system performance parameters. One of the cases is the replacement of pipelines of one diameter with another.
The article considers a specific case for the water heating system of an apartment building with partially changed diameters of apartment pipelines.
Calculations have shown that the installed pump is sufficient to operate the heating system with the actual diameters of the pipelines. However, a decrease in pipeline diameters led to an increase in hydraulic resistances and, as a result, a decrease in the authority of thermostatic valves. The consequence of a decrease in authority is a decrease in the efficiency of regulation by the heating system, that is, the possibilities for saving thermal energy are reduced.
