Real-world CO2 and NOX emissions from refrigerated vans

Refrigerated vans used for home deliveries are attracting attention as online grocery shopping in the UK is expanding rapidly and contributes to increasing greenhouse gas (CO2) nitrogen oxides (NOX) emissions. These typically 3.5-tonne gross weight vehicles equipped with temperature-controlled units called Transport Refrigeration Units (TRUs), which usually powered off vehicles' engine. It obvious that added of TRUs consume more fuel emit NOX, let alone diesel engines also powering refrigeration units, further elevates This research uses an instantaneous vehicle emission model PHEM (version 13.0.3.21) simulate real-world emissions from refrigerated vans. A validation included using data laboratory (chassis dynamometer) tests over a realistic driving profile (the London Drive Cycle), assess its ability quantify impact changing weights carrying loads. The TRU weight, greater frontal area aerodynamic drag load on van then estimated by PHEM. influence ambient temperature, cargo condition CO2 NOX assessed. Overall found be 15% higher than standard vehicles, elevated 18%. confirms need take into account additional engine when predicting this other sectors such ambulances relatively heavy, high vehicles. Moreover, findings consumptions can optimize fuel-saving strategies test cases alternative low- or zero-emission technologies, support progress sustainable net-zero society.