Abstract
The article presents the results of researches for domestic hot water in two, the same buildings – students dormitories. There was not working circulation system in one of the objects. Characteristics of hot water intake and the size of the design flows were determined. The influence of circulation loop existence on the size of hot water consumption and characteristic values which are describing the size of hot water abstraction in analyzed buildings was pointed out.
Highlights
Energy conservation is one of the main topics discussed nowadays
What follows is increase of energy loss connected with the necessity of heating water up to the appropriate temperature, and tap water losses and higher warm water bills for water, which is not necessarily warm
The presented analysis of domestic hot water consumption in two identical buildings T-15 and T-16, one of which was not equipped with a working circulating system, revealed concurrence with the expected results
Summary
Energy conservation is one of the main topics discussed nowadays. It results from concern for the environment, but most of all from the desire to decrease the amount of energy fees, which are gradually increasing. It is important to strive for maintenance of energy consumption at a rationally low level. This has to be considered as early as during the stage of designing water supply installations. Designed circulating system should prevent water temperature decrease in DHW pipes. What is more, it should ensure appropriate water temperature at the outlet in the place of the point-of-use. What follows is increase of energy loss connected with the necessity of heating water up to the appropriate temperature, and tap water losses and higher warm water bills for water, which is not necessarily warm
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