A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mathematical modelling of Degussa Furnace
The energy demands in the world is rapidly increasing and with this, a supply nuclear power is of much interest. Nuclear fuel is relatively efficient when comparing to power sources like wind and hydropower plants. Pellets are used as fuel by many plants however, its main concern is to find maximize cost efficiency and minimize fuelwaste. Studying how to get the pellets to be as optimal as possible is of massive importance and in huge focus in order to match the worlds power demand. These pellets are sintered in a furnace type known as ”pushertype” furnaces that functions continuously and is incredibly efficient when it comes to its heat transfer capacity and highperformance output. In this sintering process, a gas flow from the opposite side from the pellets interacts with the solid pellets in order to get the desired reaction. However, the turbulence and the nature of the multi phase flow problem causes many unknown interactions and the main focus is do create a theoretical model based on the process parameters to understand what is happening in the furnace. In this study, a simplified model of the inside of the furnace chamber was created in order to observe where and when in the furnace a dissociation from CO2 to CO + O2 would occur. Data given by Westinghouse was put into a mathematical model created in MATLAB and parameters given by the thermodynamic model was in turn put in to ANSYS, a program based on Computational Fluid Dynamics for a simulation. The simulation was considered a success when the gasmix goes from 3% CO2 to 0.4%. The CFD of the model estimates this to happen at 250 seconds, where as the thermodynamic model predicts the exchange time to be about 200 seconds. This study is a major first step in understanding the dynamics of the furnace. ; Energibehovet i världen ökar snabbt och då blir ett stadigt tillförsel av kärnenergi mycket intressant. Kärnbränsle är relativt effektivt jämfört med kraftkällor som vind och vattenkraftverk. Pellets används som bränsle av många kraftverk och då ...
Mathematical modelling of Degussa Furnace
The energy demands in the world is rapidly increasing and with this, a supply nuclear power is of much interest. Nuclear fuel is relatively efficient when comparing to power sources like wind and hydropower plants. Pellets are used as fuel by many plants however, its main concern is to find maximize cost efficiency and minimize fuelwaste. Studying how to get the pellets to be as optimal as possible is of massive importance and in huge focus in order to match the worlds power demand. These pellets are sintered in a furnace type known as ”pushertype” furnaces that functions continuously and is incredibly efficient when it comes to its heat transfer capacity and highperformance output. In this sintering process, a gas flow from the opposite side from the pellets interacts with the solid pellets in order to get the desired reaction. However, the turbulence and the nature of the multi phase flow problem causes many unknown interactions and the main focus is do create a theoretical model based on the process parameters to understand what is happening in the furnace. In this study, a simplified model of the inside of the furnace chamber was created in order to observe where and when in the furnace a dissociation from CO2 to CO + O2 would occur. Data given by Westinghouse was put into a mathematical model created in MATLAB and parameters given by the thermodynamic model was in turn put in to ANSYS, a program based on Computational Fluid Dynamics for a simulation. The simulation was considered a success when the gasmix goes from 3% CO2 to 0.4%. The CFD of the model estimates this to happen at 250 seconds, where as the thermodynamic model predicts the exchange time to be about 200 seconds. This study is a major first step in understanding the dynamics of the furnace. ; Energibehovet i världen ökar snabbt och då blir ett stadigt tillförsel av kärnenergi mycket intressant. Kärnbränsle är relativt effektivt jämfört med kraftkällor som vind och vattenkraftverk. Pellets används som bränsle av många kraftverk och då ...
Mathematical modelling of Degussa Furnace
Faraydoun Muhammed, Rans (author)
2021-01-01
Theses
Electronic Resource
English
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