Comparison of Thermal Bridges Calculate Method through Typical Details in Low Energy Designing

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There are several studies that have investigated transmission heat transfer losses, through building envelopes including thermal bridges. Most of the studies investigate the effect of different calculation and simulation methodologies, such as static/dynamic and 1D/2D/3D. It is essential to minimize heat losses in designing phase in accordance of building energy efficiency. Building envelopes with high thermal resistance are generally typical for low-energy buildings. In this sense thermal bridges impact increases by using of greater thickness of thermal insulation. s mentioned earlier, different measuring methods may be used to quantify building elements. This paper is focused on comparison of thermal bridges calculate method through typical systems details in buildings. The impact of thermal bridges was studied by comparative calculations for a case study of building with different amounts of thermal insulation. The calculated results represent a percentage distribution of heat loss through typical building components in correlation of various thicknesses of their thermal insulations.

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126-129

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December 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Kosny, J., A New Whole Wall R-value Calculator, An Integral Part of the Interactive Internet Based Building Envelope Materials Database for Whole-Building Energy Simulation Programs, (2004).

Google Scholar

[2] Kosny, J. and A. O. Desjarlais. 1994. Influence of Architectural Details on the Overall Thermal Performance of Residential Wall Systems., Journal of Thermal Insulation and Building Envelopes, Vol. 18, July (1994).

DOI: 10.1177/109719639401800104

Google Scholar

[3] Kosny J., Christian J.E., Desjarlais A.O., Kossecka E., Berrenberg L. 1998 The Performance Check between Whole Building Thermal Performance Criteria and Exterior Wall; Measured Clear Wall R-value, Thermal Bridging, Thermal Mass, and Air-tightness, - paper presented at 1998 ASHRAE Toronto Meeting. ASHRAE Transactions, V. 104, Pt. 2.

Google Scholar

[4] Boverket, Energihushĺllning enligt Boverkets byggregler, Karlskrona, 2009, p.64.

Google Scholar

[5] Ympäristöministeriö, C4 Thermal insulation, Instructions, Helsingfors, 2002, p.24.

Google Scholar

[6] DIN – German Institute for Standardization, DIN 4108-2: 2003-07 Wärmeschutz und Energie-Einsparung in Gebäuden – Teil 2: Mindestanforderungen an den Wärmeschutz, in, 2003, p.35.

DOI: 10.31030/1929159

Google Scholar

[7] B. Berggren, M. Wall, Thermal bridges in passive houses and nearly zero-energy buildings, in: Proceedings from 4th Nordic Passive House Conference, Helsinki, 2011, p.10.

Google Scholar

[8] P. Standaert, Thermal bridges: a two-dimensional and three-dimensional transient thermal analysis, Thermal Performance of the Exterior Envelopes of Buildings III, Florida, (1985).

Google Scholar

[9] STN EN ISO 10211, Thermal bridges in building construction. Heat flows and surface temperatures. Detailed calculations (ISO 10211: 2007).

DOI: 10.3403/30143206u

Google Scholar

[10] STN EN ISO 14683, Thermal bridges in building construction, Linear thermal transmittance Simplified methods and default values, (2007).

DOI: 10.3403/30143208u

Google Scholar