Daniel Ledda
2 months ago
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Content/Theoretical Background.tex
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| @@ -1,8 +1,3 @@ | |||||
| - electric vs. electrical ? | |||||
| - do not "require" (???) any external reformer | |||||
| - | |||||
| \chapter{Theoretical Background} | \chapter{Theoretical Background} | ||||
| \label{cap: Theorie} | \label{cap: Theorie} | ||||
| @@ -38,7 +33,7 @@ Another internal reaction is the water-gas-shift reaction, which can turn carbon | |||||
| \subsubsection{Molten Carbonate Fuel Cells (MCFCs)} | \subsubsection{Molten Carbonate Fuel Cells (MCFCs)} | ||||
| MCFCs are also high temperature cells with an operating temperature of about 600 to 700 °C and a electrolyte made out of molten carbonate (CO$_3$$^{2-}$). Like SOFCs, they can also be operated with both pure hydrogen (H$_2$) and biogas, which could also contain CH$_4$ as well as CO$_2$ and CO \citep{02_lucia2014overview, 02_wang2020fundamentals}. | MCFCs are also high temperature cells with an operating temperature of about 600 to 700 °C and a electrolyte made out of molten carbonate (CO$_3$$^{2-}$). Like SOFCs, they can also be operated with both pure hydrogen (H$_2$) and biogas, which could also contain CH$_4$ as well as CO$_2$ and CO \citep{02_lucia2014overview, 02_wang2020fundamentals}. | ||||
| As such, SOFCs and MCFCs do not require any external reformer to convert other fuel types into H$_2$ as they use the same reforming reactions from the equations \ref{eq:Steam reforming} and \ref{eq:WGS} | |||||
| As such, SOFCs and MCFCs do not require any external reformers to convert other fuel types into H$_2$ as they use the same reforming reactions from the equations \ref{eq:Steam reforming} and \ref{eq:WGS} | |||||
| \citep{MCFScontreras2021molten}. | \citep{MCFScontreras2021molten}. | ||||
| It is also possible to combine SOFC and MCFC with working temperatures of 550-700 °C which are slighlty higher than a normal MCFC at 650 °C | It is also possible to combine SOFC and MCFC with working temperatures of 550-700 °C which are slighlty higher than a normal MCFC at 650 °C | ||||
| \citep{MCFS_cui2021review}. Furthermore, the electrical efficiency of the MCFCs can reach up to 60\% \citep{wang_preparation_2018}. | \citep{MCFS_cui2021review}. Furthermore, the electrical efficiency of the MCFCs can reach up to 60\% \citep{wang_preparation_2018}. | ||||