Increasing the world population will increase the demand for new energy sources in the future. Waste generated as a result of agricultural activities can be considered as a sustainable energy source. Animal manure that occurs from livestock activities can be shown as an energy source if managed properly. Antalya province and its region, where agriculture and tourism are intense, have been chosen as the study area. In the study, taking into account the data of Turkey Statistical Institute in 2019, for cattle animal breeding the numbers of dairy and beef cattle; for ovine animal breeding the numbers of sheep and goats; for poultry, the numbers of laying hen, turkeys, geese and duck were evaluated. Manure amounts and potential biogas energy values were calculated considering the animal numbers of Antalya province in 2019. The amount of electricity and natural gas energy that can be obtained in this potential biogas energy is also calculated. The obtained results are compared with the relevant literature and calculations are made for the existing biogas potential. As a result of the research, it was calculated that the amount of manure that can be obtained from animal waste in Antalya province could be 3,821.86 million kg and the potential biogas energy could be 45.57 million MJ. It has been calculated that the total amount of biogas that can be obtained is equivalent to approximately 253.23 million kWh of electrical energy or 43.90 million m 3 of natural gas energy. As a result, considering the energy need of Antalya province, it can be said that an economic gain can be achieved by utilizing animal wastes for energy production.

In this study, experimental and theoretical double dierential cross section (DDCS) data for methane-electron interaction mechanism after the impact of a 250 eV electron have been comprehensively determined for a wide energy range of the detected electron, from 50 to 225 eV. The rst Born-One Coulomb wave modeling with Gamow factor has been calculated to analyze experimental DDCS results for a correct description of the electron impact ionization of methane molecule. It is found that these theoretical calculations are successful to describe the postcollision interaction eects due to the Coulomb long-range interaction between the outgoing electrons in the nal state. A considerable agreement is found between experimental and theoretical results.

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Hydrogen energy is considered as one of the cleanest sources of energy due to its high efficiency. The only combustion product of hydrogen is water. Gasification can be used for the conversion of wastes into other fuels, and it presents an engaging renewable replacement for fossil fuels. This study aims to produce hydrogen as a result of co-gasification of MSW with coal to generate energy during its disposal. The importance of the system has been emphasized by making energy and exergy analyses. Gasification performance and the importance of hydrogen production of municipal solid blended with coal at different ratios (10%, 30%, 50%, 70%, and 90%) were also determined. A numerical model was developed for the co-gasification system. This study implies that gasification can be used for the evaluation of coal with disposal of MSW and conversion of these wastes into energy, without harming the environment.