Detail publikace

Transient Numerical Simulation of Linear Thermal Transmittance in Software CalA

Originální název

Transient Numerical Simulation of Linear Thermal Transmittance in Software CalA

Anglický název

Transient Numerical Simulation of Linear Thermal Transmittance in Software CalA

Jazyk

en

Originální abstrakt

Calculation of heat losses of buildings according to European standard EN ISO 10211 and Czech standard ČSN 73 0540 is simplified to one-dimensional time-steady heat conduction through the building construction in direction of the largest temperature gradient. This simplification of the calculation is incorrect in case of complex geometry. Calculation according to norm takes into account this inaccuracy and uses Linear Thermal Transmittance in 2D geometry or Point Thermal Transmittance in the 3D geometry as a calculation correction. This contribution is focused on detailed calculation of linear thermal transmittance in case of contact external peripheral wall and plastic window frame. Results of two-dimensional transient numerical simulation show unsteady linear thermal transmittance in time and dependence on solar radiation. All of these variable boundary conditions can be easily simulated in the software CalA as well as complex geometry.

Anglický abstrakt

Calculation of heat losses of buildings according to European standard EN ISO 10211 and Czech standard ČSN 73 0540 is simplified to one-dimensional time-steady heat conduction through the building construction in direction of the largest temperature gradient. This simplification of the calculation is incorrect in case of complex geometry. Calculation according to norm takes into account this inaccuracy and uses Linear Thermal Transmittance in 2D geometry or Point Thermal Transmittance in the 3D geometry as a calculation correction. This contribution is focused on detailed calculation of linear thermal transmittance in case of contact external peripheral wall and plastic window frame. Results of two-dimensional transient numerical simulation show unsteady linear thermal transmittance in time and dependence on solar radiation. All of these variable boundary conditions can be easily simulated in the software CalA as well as complex geometry.

BibTex


@inproceedings{BUT109760,
  author="Josef {Plášek} and Ondřej {Šikula}",
  title="Transient Numerical Simulation of Linear Thermal Transmittance in Software CalA",
  annote="Calculation of heat losses of buildings according to European standard EN ISO 10211 and Czech standard ČSN 73 0540 is simplified to one-dimensional time-steady heat conduction through the building construction in direction of the largest temperature gradient. This simplification of the calculation is incorrect in case of complex geometry. Calculation according to norm takes into account this inaccuracy and uses Linear Thermal Transmittance in 2D geometry or
Point Thermal Transmittance in the 3D geometry as a calculation correction. This contribution is focused on detailed calculation of linear thermal transmittance in case of contact external peripheral wall and plastic window frame. Results of two-dimensional transient numerical simulation show unsteady linear thermal transmittance in time and dependence on solar radiation. All of these variable boundary conditions can be easily simulated in the software CalA as well as complex geometry.",
  address="Trans Tech Publications",
  booktitle="Envibuild 2014",
  chapter="109760",
  doi="10.4028/www.scientific.net/AMR.1041.281",
  edition="2014",
  howpublished="print",
  institution="Trans Tech Publications",
  number="1041",
  year="2014",
  month="october",
  pages="281--284",
  publisher="Trans Tech Publications",
  type="conference paper"
}