BUSWORLD: KONVEKTA'S FAST-CHARGING MODULAR HEAT STORAGE CONCEPT HEAT2GO
Hall 5, booth 516a
This year at Busworld Konvekta AG will be showcasing the fast-charging enabled, modular, heat storage concept HEAT2GO for electric city buses. Konvekta promises more than one hour of continuous heat with a capacity of 10 kWh available to electric buses without having to put any burden on the batteries.
The research project HEAT2GO – a joint venture development of the Fraunhofer Institute for Traffic and Infrastructure systems - is a quick-charge enabled, modular latent heat storage system for electric city buses. This heat storage absorbs thermal energy fed to it in a small-time frame, by changing the unit state from solid to liquid. The thermal energy now saved is discharged continuously during the bus travel to the driver's workplace, the passenger cabin, as well as to secondary consumers requiring a high temperature. Konvekta emphasizes that the system does not use energy from the on-board batteries.
Also multiple variants of the product range of the Konvekta CO2 heat pump will be exhibited at Busworld. In city traffic, energy consumption plays a significant role regarding heating and cooling, since this has a considerable impact on the range and therefore the deployment of the omnibuses. With zero emissions and heat from the ambient air, these thermal systems of the Konvekta CO2 heat pump reduce the annual energy consumption, needed for cooling and heating, by more than 50%. Moreover, CO2 has a 20% higher efficiency compared to conventional refrigerants; in other words, you need approximately 25% less fuel for the same cooling power.
Konvekta will also be presenting a new supplementary module in order to save on energy costs, "Energy Collect". Waste heat from the axles or from the battery is used in order to heat the vehicle passenger cabin. Following initial measurements, one can save approximately 15% - 20% of the heating energy required in a year. Indeed, in the course of the next year, even the module "Energy Collect" will be ready for series production.