Hot Water Temperature Drop in a Pipe as a Parameter in Order to Define Operation Time of a Circulation Loop in Domestic Hot Water Distribution System

Katarina Knizova; Martin Kovac

doi:10.4028/www.scientific.net/AMR.899.131

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 899Hot Water Temperature Drop in a Pipe as a...

Hot Water Temperature Drop in a Pipe as a Parameter in Order to Define Operation Time of a Circulation Loop in Domestic Hot Water Distribution System

Abstract:

The content of this submission is to define the operation time of a hot water circulation loop in term of the hot water temperature drop in a time depending on several factors. Type and diameter of a pipe, thickness of a thermal pipe insulation, location of distribution pipes and ambient temperature around the pipes belong among these significant factors. All these parameters and others are used in the analytic calculation of the hot water temperature drop in a time according to the standard STN EN 15316-3-2. So we can use the calculated time of hot water temperature drop in order to define time intervals of the water circulation in hot water distribution pipes. The aim of this submission is to determine heat losses from hot water distribution pipes and calculate the electric energy consumption of the circulation pump for this design state. The study results are demonstrated on the model object of a multi-dwelling house.

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Periodical:

Advanced Materials Research (Volume 899)

Pages:

131-134

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.899.131

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Online since:

February 2014

Authors:

Katarina Knizova, Martin Kovac*

Keywords:

Circulation Loop, Domestic Hot Water Distribution System, Energy, Thermal Losses

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References

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[3] STN EN 15316-3-2 Heating systems in buildings – Method for calculation of system energy requirements and system efficiencies – Part 3-2: Domestic hot water systems, distribution. CEN, Brussels, Belgium, (2007).

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[4] K. Knizova, M. Kovac, Analysis of hot water temperature in domestic hot water distribution system in term of selected parameters, in: SGEM 2013: 13th International Multidisciplinary Scientific Geoconference : Ecology, Economics, Education and Legislation, STEF92 Technology Ltd., Bulgaria, 2013, ISBN 978-619-7105-04-9.

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