Skip to content

Commit

Permalink
Correction for Radiation losses #6
Browse files Browse the repository at this point in the history
  • Loading branch information
GwennoleChappron committed Sep 6, 2024
1 parent 49674a1 commit 2ff9029
Showing 1 changed file with 3 additions and 2 deletions.
5 changes: 3 additions & 2 deletions article.hid2-ub-cicd.ppam24.tex
Original file line number Diff line number Diff line change
Expand Up @@ -377,7 +377,6 @@ \subsubsection{Governing equation of the simulation}
\phi_{wall}=\sum_{j} U_j\cdot S_j\cdot \Delta T
\end{equation}

\textbf{Convection losses}

The convection losses are computed differently regarding the surface of the wall they are applied to.

Expand All @@ -391,13 +390,15 @@ \subsubsection{Governing equation of the simulation}
\phi_{conv,ext}=(1.8+4.8\cdot v_{air}) \cdot \Delta T
\end{equation}

\textbf{Radiation losses}

Radiation losses describe the heat energy lost due to thermal radiation.
This is an important factor in buildings as it impacts both energy efficiency and thermal comfort.
We differentiate between the exterior of the wall that exchange with the sky and the interior where the walls exchange between each other.

Exterior radiation exchange.
\begin{equation}
\phi_{net,sky} = \varepsilon_i \cdot \sigma \cdot (T_i^4-T_{sky})
\phi_{net,sky} = \varepsilon_i \cdot \sigma \cdot (T_i^4-T_{sky}^4)
\end{equation}
Interior radiation exchange.
\begin{equation}
Expand Down

0 comments on commit 2ff9029

Please sign in to comment.