Alao, Adeyinka Oladipo and Covenant University, Theses (2022) LARGE EDDY SIMULATION OF E10 GRADE BIOFUEL IN AN INTERNAL COMBUSTION ENGINE. Masters thesis, Covenant University Ota.
![[img]](http://eprints.covenantuniversity.edu.ng/style/images/fileicons/application_pdf.png) |
PDF
Download (251kB) |
Abstract
The greatest significant advantage of fossil fuels is their energy density. Fossil fuels contain enough energy in a small enough space to make them highly useful for a variety of applications, the most essential of which is mobility. Considering various methods of showing biofuel combustion in an Internal Combustion Engine, Large Eddy Simulation (LES) is one of the best techniques used to observe how solids interact with fluids. It is a computational method using Finite Volume approach to solve Navier Stokes governing equations to determine results in turbulent models. This study uses Large Eddy Simulation turbulence model to compute the temperature, pressure, velocity and total energy of E10 grade biofuel. It was observed that the initial flow rate of E10 grade biofuel at the beginning of combustion causes a spike in total energy developed and temperature at initial stage of combustion. The biofuel produced a maximum energy of 1.2MJ during combustion, while gasoline produced 0.8MJ in the same second. This showed initial energy produced by E10 was greater than gasoline energy. The temperature difference between both fuel is also small. E10 biofuel produced a maximum temperature of 2300oC at the end of combustion time while gasoline produced a temperature of 1700oC during the same second. The study showed little change in energy and temperature outcome between both fuel and justified the deviation to renewable energy as a source of fuel for Internal Combustion engines.The greatest significant advantage of fossil fuels is their energy density. Fossil fuels contain enough energy in a small enough space to make them highly useful for a variety of applications, the most essential of which is mobility. Considering various methods of showing biofuel combustion in an Internal Combustion Engine, Large Eddy Simulation (LES) is one of the best techniques used to observe how solids interact with fluids. It is a computational method using Finite Volume approach to solve Navier Stokes governing equations to determine results in turbulent models. This study uses Large Eddy Simulation turbulence model to compute the temperature, pressure, velocity and total energy of E10 grade biofuel. It was observed that the initial flow rate of E10 grade biofuel at the beginning of combustion causes a spike in total energy developed and temperature at initial stage of combustion. The biofuel produced a maximum energy of 1.2MJ during combustion, while gasoline produced 0.8MJ in the same second. This showed initial energy produced by E10 was greater than gasoline energy. The temperature difference between both fuel is also small. E10 biofuel produced a maximum temperature of 2300oC at the end of combustion time while gasoline produced a temperature of 1700oC during the same second. The study showed little change in energy and temperature outcome between both fuel and justified the deviation to renewable energy as a source of fuel for Internal Combustion engines.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Biofuel, Bioethanol, Energy, Engines, IC Engine, Ansys, Simulation |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | nwokealisi |
| Date Deposited: | 13 Sep 2022 11:17 |
| Last Modified: | 13 Sep 2022 11:17 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/16169 |
Actions (login required)
 |
View Item |
