Pakistan has Thar-coal reserves with very high moisture contents and difficult to mine it. Our task is to use this high moisture coal as coal slurry. This project investigates the various coal slurry options through computational fluid dynamics simulation. Computational models such as k-epsilon model and eddy dissipation model are used to plot combustion results. The main objective of this thesis work is to utilize computational fluid dynamics software FLUENT 17.0 as an efficient computer simulation tool to study the coal slurry combustion by using diverse coal-water compositions. Various parameters as, laminar flame speed, turbulent flame speed, mass fractions of NO, N₂O and CO are simulated for different coal to water ratios (75-25%, 65-35%, 70-30%). Moreover, co-combustion of 5% biomass with 70% coal and 25% water is also investigated. The results show low NOx and CO emission. Greater efficiency of coal slurry fuel combustion at 70% coal, 25% water, 5% biomass (cellulose) composition. The project has potential to use the coal slurry as an alternative fuel and utilization as a via-able option. Finally, this work shows that computational modeling method is a very promising tool to deal with the complicated combustion processes even for practical applications in industry.