Performance assesment of hydrogen and ammonia combustion with various fuels for power generators

Abstract

This paper proposes the use of hydrogen and ammonia as possible fuels for power generators and to do so the combustion is modelled by using different types of fuels which are; hydrogen, gasoline, diesel, ethanol, methanol, propane, butane and natural gas to see the effects of these fuel sources on combustion. The main aim of using a clean fuel is to decrease the greenhouse emissions, and by looking at the results, the reduction in CO2 emissions shows that blending hydrogen and ammonia will result in a reduction for the deleterious emissions occurring after combustion. The reason behind using a dual fueled system is to make use of the secondary fuel source as a combustion promoter to help increase the low flame temperatures of ammonia that causes it not to ignite when used solely. In the modelling of combustion the maximum power output is set to 3.65 kW as this is the maximum power output for the power generator used in the experimental studies. In the studies the increase of clean fuel percentage in the fuel blend cause a reduction in the performance measures as expected with the lower energy density and lower heating values that ammonia offers but the reduction in CO2 and NOx emissions makes it a fuel source worth using with a combustion promoter.