DATE2022-05-30 18:22:57
TITLEThe contribution of electric vehicles to the reduction of thermal emissions to the urban environment
AUTHORSGeorge Spyropoulos (1) ,Konstantinos Moustris (1) ,Panagiotis Nastos (2) ,Konstantinos Chalvatzis (3)
  1. 1) University Of West Attica, Egaleo, Athens (Greece) ,2) National And Kapodistrian University Of Athens, Athens (Greece) ,3) University Of East Anglia, Norwich (Uk)
ABSTRACTIn the proposed manuscript, an experimental study was conducted in order to investigate the thermal emissions of electric vehicles (EVs) compared to the corresponding thermal emissions from conventional internal combustion vehicles. The aim focused on investigating the reduction rate of thermal irradiation emitted by conventional vehicles, in Greece up to 2030, when these vehicles will be replaced by EVs. In particular, four different vehicles, two EVs and two conventional vehicles were examined. It should be noted that if EVs do not use an air conditioning system, there is no heat emissions to the environment, except the thermal emission due to the absorption of solar irradiation from their construction materials, in contrast to conventional vehicles. Valuable conclusions were drawn regarding the contribution of the use of EVs in shaping better biometeorological conditions for humans, in particular their contribution in order to be reduced the intensity of the urban heat island phenomenon. The main findings that emerged concern the emissions of thermal irradiation from vehicles and specifically: i. All vehicles emit thermal radiation from their shell with wavelengths in the infrared region. ii. The point of the vehicle shell (bonnet) under which the engine is located, seems to emit about 40.0% of the total heat energy emitted from the whole vehicle’s shell. iii. The color of vehicle’s shell seems to be not such an essential parameter in the reduction of thermal irradiation emitted from vehicle’s shell. iv. In the year 2030, the total emissions of thermal energy to the environment from vehicles in Greece, will be reduced by at least 2.02%, due to electric vehicles penetration.