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Fixed unconsistent use of acronyms

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Radu C. Martin 2021-07-22 22:13:51 +02:00
parent 1e1cc5acd8
commit 721953642c
7 changed files with 49 additions and 47 deletions
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24
Sections/40_CARNOT_model.tex
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@ -378,7 +378,7 @@ The unit has a typical \acrlong{eer} (\acrshort{eer}, cooling efficiency) of 4.9
maximum cooling capacity of 64.2 kW.
One particularity of this \acrshort{hvac} unit is that during summer, only one
of the two compressors are running. This results in a higher \acrlong{eer}, in
of the two compressors are running. This results in a higher \acrshort{eer}, in
the cases where the full cooling capacity is not required.
\subsubsection*{Ventilation}
@ -504,7 +504,7 @@ it will oscillate between using one or two compressors. Lastly, it is possible
to notice that the \acrshort{hvac} is not turned on during the night, with the
exception of the external fan, which continues running.
\subsubsection{The CARNOT WDB weather data format}\label{sec:CARNOT_WDB}
\subsubsection{The CARNOT Weather Data Bus format}\label{sec:CARNOT_WDB}
For a correct simulation of the building behaviour, CARNOT requires not only the
detailed definition of the building blocks/nodes, but also a very detailed set
@ -514,7 +514,7 @@ sun's position throughout the simulation (zenith and azimuth angles), the
as well as information on the ambient temperature, humidity, precipitation,
pressure, wind speed and direction, etc. A detailed overview of each
measurement necessary for a simulation is given in the CARNOT user
manual~\cite{CARNOTManual}.
manual~\cite{CARNOTManual}. This data structure is known as the \acrfull{wdb}.
In order to compare the CARNOT model's performance to that of the real \pdome,
it is necessary to simulate the CARNOT model under the same set of conditions as
@ -532,17 +532,19 @@ are computed using the Python pvlib
library~\cite{f.holmgrenPvlibPythonPython2018}.
As opposed to the solar angles, which can be computed exactly from the available
information, the Solar Radiation Components (DHI and DNI) have to be estimated
from the available measurements of GHI, zenith angles (Z) and datetime
information. \textcite{erbsEstimationDiffuseRadiation1982} present an empirical
relationship between GHI and the diffuse fraction DF and the ratio of GHI to
extraterrestrial irradiance $K_t$, known as the Erbs model. The DF is then used
to compute DHI and DNI as follows:
information, the Solar Radiation Components (\acrshort{dhi} and \acrshort{dni})
have to be estimated from the available measurements of \acrfull{ghi}, zenith
angles (Z) and datetime information.
\textcite{erbsEstimationDiffuseRadiation1982} present an empirical relationship
between \acrshort{ghi} and the \acrfull{df} and the ratio of \acrshort{ghi} to
extraterrestrial irradiance $K_t$, known as the Erbs model. The \acrshort{df}
is then used to compute \acrshort{dhi} and \acrshort{dni} as follows:
\begin{equation}
\begin{aligned}
\text{DHI} &= \text{DF} \times \text{GHI} \\
\text{DNI} &= \frac{\text{GHI} - \text{DHI}}{\cos{\text{Z}}}
\text{\acrshort{dhi}} &= \text{DF} \times \text{\acrshort{ghi}} \\
\text{\acrshort{dni}} &= \frac{\text{\acrshort{ghi}} -
\text{\acrshort{dhi}}}{\cos{\text{Z}}}
\end{aligned}
\end{equation}