Humidified Cracked NH3 emissions data

Using renewably produced ammonia as a zero-carbon fuel is gaining momentum due to its ease of transportation and storage as a hydrogen vector. This is particularly true for partially cracking ammonia immediately prior to use, injecting a blend of NH3, H2 and N2. Challenges with this fuel combination relate to the emissions of NOx and unburned NH3, as well as understanding flame stability for practical applications. In this study, a 20 %(vol.) cracked ammonia blend was investigated using a fully premixed swirl burner, operating at a thermal power of 10 kW with steam injection of 30 %(vol.) of the fuel and preheating inlet temperatures of up to 390 K, for a range of equivalence ratios from lean to rich. Emissions of NO, NO2, N2O, NH3, H2, O2 and H2O were recorded. The emissions data of NO, NO2, N2O, NH3 and H2 is is available in a .xlsx file as both ng/J and ppmv, dry 15% O2 for a range of equivalence ratios across the four different cases examined. The first dataset is emissions on a ng/J basis in the format of equivalence ratio (a.u.) in column A, with the corresponding ng/J emissions value for each of the four cases in columns B, C, D and E (ng/J). Rows 4 to 15 cover NO emissions, 17 to 28 cover NO2 emissions, 30 to 41 cover N2O emissions, 43 to 54 cover NH3 emissions and 56 to 67 cover H2 emissions. Column G repeats the same data as column A (equivalence ratio - a.u.) and columns H to K show the corresponding error bar values in each direction for the emissions values (ng/J) in columns B to E. Finally, this dataset is repeated in an identical format in columns O to Y, but this time the emissions values are in the units ppmv, dry 15% O2.