Publication detail
Energy Conservation of Domestic Hot Water Distribution Systems
BÁRTA, L.
English title
Energy Conservation of Domestic Hot Water Distribution Systems
Type
conference paper
Language
en
Original abstract
This paper is the result of complex research done on domestic hot water (DHW) distribution systems in existing apartment buildings in the Czech Republic. Even though the monitoring of technical, hygienical and economical aspects cannot be distinct, this paper is particularly aimed at finding a means of lowering operational costs of the monitored systems. The purpose of this paper is to determine requirements for the optimal thermal insulation thickness of DHW distribution pipes on the basis of a derived mathematical model that expresses the problem of heat transport through cylindrical surfaces and detailed diagnostics of the existing systems. Recorded in the work are examples of experimental monitoring results from a DHW system in an existing building, and numerical calculations for the energy conservation potential by several means of thermal insulating. It was discovered that the optimal thickness of thermal insulation for the given case, resulting from economic criteria, is beyond the current, realistic limit, which is why it is necessary to proceed from the determination of all the boundary conditions for its design. Another discovery is that the monitored systems have a distinct energy conservation potential, mainly due to insufficient thermal insulation.
English abstract
This paper is the result of complex research done on domestic hot water (DHW) distribution systems in existing apartment buildings in the Czech Republic. Even though the monitoring of technical, hygienical and economical aspects cannot be distinct, this paper is particularly aimed at finding a means of lowering operational costs of the monitored systems. The purpose of this paper is to determine requirements for the optimal thermal insulation thickness of DHW distribution pipes on the basis of a derived mathematical model that expresses the problem of heat transport through cylindrical surfaces and detailed diagnostics of the existing systems. Recorded in the work are examples of experimental monitoring results from a DHW system in an existing building, and numerical calculations for the energy conservation potential by several means of thermal insulating. It was discovered that the optimal thickness of thermal insulation for the given case, resulting from economic criteria, is beyond the current, realistic limit, which is why it is necessary to proceed from the determination of all the boundary conditions for its design. Another discovery is that the monitored systems have a distinct energy conservation potential, mainly due to insufficient thermal insulation.
Keywords in English
The Czech republic, apartment buildings, domestic hot water distribution systems, experimental monitoring, mathematic model of heat transfer, heat losses of pipes, optimal thickness of heat insulation, energy conservation potential.
RIV year
2001
Released
17.09.2001
Publisher
Univerzita v Mariboru
Location
Maribor
Book
27th International Symposium CIB W62 2001 Water Supply and Drainage for Buildings
Pages count
10
BIBTEX
@inproceedings{BUT6587,
author="Ladislav {Bárta},
title="Energy Conservation of Domestic Hot Water Distribution Systems",
booktitle="27th International Symposium CIB W62 2001 Water Supply and Drainage for Buildings",
year="2001",
month="September",
publisher="Univerzita v Mariboru",
address="Maribor"
}