There are a variety of other implementations of auxiliary power units in energy systems. This explains for how a significant portion of emissions come from commercial vehicles. Diesel engines operating within densely populated areas, running within an ineffective range in order to power their auxiliary systems, such as refrigeration, are contributors to a large portion of the emissions from automobiles.Matulic, N., Radica, G., Barbir, F., & Nizetic, S. (2018). Commercial vehicle auxiliary loads powered by PEM fuel cell. International Journal of Hydrogen Energy. doi: 10.1016/j.ijhydene.2018.12.121 Using a model with a diesel powered four-stroke engine on a truck with 100% load capacity driving a combination of typical urban and city road cycles, emissions and auxiliary power demand were recorded. Then by using the calculated auxiliary power demand, a source was developed to support the demand for the auxiliary systems in the form of a PEM fuel cell. The end product of the PEM fuel cell was able to support the auxiliary systems of the truck using a maximum of 5 kW of power. This input was able to sustain the cooling chamber, cabin air-conditioning, radio unit, etc. The introduction of this fuel cell also contributed to a 9% reduction in diesel fuel consumption and 9.6% reduction in emissions.
There are a variety of other implementations of auxiliary power units in energy systems. This explains for how a significant portion of emissions come from commercial vehicles. Diesel engines operating within densely populated areas, runni.ng within an ineffective range in order to power their auxiliary systems, such as refrigeration, are contributors to a large portion of the emissions from automobiles.Matulic, N., Radica G., Barbir, F., & Nizetic, S. (2018). Commercial vehicle auxiliary loads powered by PEM fuel cell. International Journal of Hydrogen Energy. doi: 10.1016/j.ijhydene.201812.121 Using a model with a diesel powered four-stroke engine on a truck with 100% load capacity driving a combination of typical urban. and city road cycles, emissions and auxiliary power demand were recorded. Then by using the calculated auxiliary power demand, a source was developed to support the demand for the auxiliary systems in the form of a PEM fuel cell. The end product of the PEM fuel cell was able to support the auxiliary systems of the truck using a maximum of 5 kW of power. This input was able to sustain the cooling chamber, cabin air-conditioning, radio unit, etc The introduction of this fuel c,ell also contributed to a 9% reduction in diesel fuel consumption and 9.6% reduction in emissions.