The CO2 emission varies from 9.83 g/kW h at low load to 1.98 g/ kW h at full load for diesel fuel. For 10% blend, it varies from 8.54 g/kW h at low load to 1.74 g/kW h at full load, from 8.05 g/ kW h at low load to 1.14 g/kW h at full load for 20% blend. For 30% blend, it varies from 7.97 g/kW h at low load to 1.04 g/kW h at full load and from 7.4 g/kW h at low load to 1.15 g/kW h at full load for 40% blend.