Simulation of an Adsorption Machine with Auxiliary Heater for CO2-Neutral Air-Conditioning of Electric Utility Vehicles
Wildner, Lukas; Walter, Michael S. J.; Weiherer, Stefan (2021)
Emerging Research in Sustainable Energy and Buildings for a Low-Carbon Future. Advances in Sustainability Science and Technology. Springer, Singapore, S. 321-330.
DOI: 10.1007/978-981-15-8775-7_19
Peer Reviewed
Air-conditioning of vehicles is important to improve driver comfort and motivate users to invest. The heating and cooling processes required for this are very energy-intensive processes. In conventional battery-operated commercial vehicles, the energy required to operate the air-conditioning system is used from the battery. This reduces the range of the vehicles by up to 30%. One of the greatest challenges in making electric commercial vehicles usable across the board is to increase their driving range. To reduce energy losses through air-conditioning, it is preferable to develop a technology that is independent of the battery. There are a number of options for controlling the temperature of a moving vehicle, but only a limited number that is CO2-neutral. In this paper, we focus on adsorption chiller technology in combination with an auxiliary heater based on bioethanol. To understand the advantage of an adsorption machine, a simulation model can provide useful data on scaling and ease of use and thus be the basis for design and assembly of a prototype system. Therefore, a mathematical model of the adsorption technology is combined with the known dimensional parameters of electric vehicles, and the results are presented in form of a simulation model.
Design of an Adsorption Refrigeration Machine with an Auxiliary Heater for CO2-Neutral Air-Conditioning of E-Vehicles
Haas, Sebastian; Weiherer, Stefan; Walter, Michael S. J. (2020)
Sustainability in Energy and Buildings. Proceedings of SEB 2019. Singapore: Springer (Smart Innovation, Systems and Technologies, 163), S. 651-664.
DOI: 10.1007/978-981-32-9868-2_55
Peer Reviewed
Analysis of Electrical Energy Flow in a Battery Powered Electric Vehicle, Comparing the Economical Mode and the Normal Mode under Real Conditions
Gröper, Mirko; Riess, Christian; Walter, Michael S. J.; Weiherer, Stefan (2018)
2018 International Conference and Exposition on Electrical And Power Engineering (EPE). Iasi, Romania, 18.-19.10.2018, S. 63-68.
DOI: 10.1109/ICEPE.2018.8559604
Evaluation and Quantification of the Range Extension of Battery Powered Electric Vehicles in Winter by Using a Separate Powered Heating Unit
Riess, Christian; Walter, Michael S. J.; Weiherer, Stefan; Gröper, Mirko (2018)
2018 International Conference and Exposition on Electrical And Power Engineering (EPE). Iasi, Romania, 18.-19.10.2018.
DOI: 10.1109/ICEPE.2018.8559871
Range extension of electric light utility vehicles using a climate neutral energy powered air-conditioning system
Riess, Christian; Walter, Michael S. J.; Weiherer, Stefan; Haas, Sebastian (2018)
Business Meets Technology. Proceedings of the 1st International Conference of the University of Applied Sciences Ansbach 25th to 27th January 2018. Aachen: Shaker (campus_edition Hochschule Ansbach), S. 46-49.
Heating an electric car with a biofuel operated heater during cold seasons – design, application and test
Riess, Christian; Walter, Michael S. J.; Weiherer, Stefan; Haas, Tiffany; Haas, Sebastian; Salceanu, Alexandru (2018)
Riess, Christian; Walter, Michael S. J.; Weiherer, Stefan; Haas, Tiffany...
ACTA IMEKO 7 (4), S. 48-54.
DOI: 10.21014/acta_imeko.v7i4.578
Open Access Peer Reviewed
The automotive industry is currently undergoing far-reaching structural changes. Automobile manufacturers are pursuing intensive scientific research and technological development in the field of alternative drive systems, such as electric powertrains. If electric car batteries are charged with regenerative generated electricity, their emission output is zero (from a well-to-wheel view). Furthermore, electric drives have very high efficiency. At cold temperatures, however, the battery power drops due to energy-intensive loads, such as the heating of the passenger compartment, and this consequently reduces the range dramatically. Therefore, the focus of this research work is external energy supply for the required heat capacity. The auxiliary energy may be generated by renewable energy technologies in order to further improve the CO2 balance of electric vehicles. The paper deals with the design, application, and testing of a biofuel-operated heater to heat the passenger compartment of a battery-powered electric car (a Renault ZOE R240). The practical use of the heating system is analyzed in several test drives, performed during winter 2018. The results as well as the range extension of the electric car that can be achieved by substituting the on-board heating system by the fuel-operated heater are quantified herein.
Potentiale zur Reichweitenerhöhung eines Serien-Elektrofahrzeuges durch die Nutzung regenerativer Energien
Haas, Tiffany; Walter, Michael S. J.; Weiherer, Stefan (2017)
Biomass to Power and Heat. Beiträge zum Fachkolloquium, 31.05-01.06.2017. Hochschule Zittau/Görlitz, S. 191-203.
Increasing the driving range of electric vehicles using secondary energies - a review
Haas, Tiffany; Walter, Michael S. J.; Weiherer, Stefan; Salceanu, Alexandru (2017)
Proceedings of the 22nd IMEKO TC4 International Symposium & 20th International Workshop on ADC Modelling and Testing 2017. Supporting World Development Through Electrical & Electronic Measurements. Iasi, Rumania, 14.-15.09.2017. Budapest: IMEKO, S. 325-330.
Acquisition and Filtering of relevant driving parameters of electric cars
Walter, Michael S. J.; Weiherer, Stefan; Haas, Tiffany; Dao, Dac L.; Sover, Alexandru (2017)
Walter, Michael S. J.; Weiherer, Stefan; Haas, Tiffany; Dao, Dac L....
Proceedings of the 22nd IMEKO TC4 International Symposium & 20th International Workshop on ADC Modelling and Testing 2017. Supporting World Development Through Electrical & Electronic Measurements. Iasi, Rumania, 14.-15.09.2017. Budapest: IMEKO, S. 66-70.
Peer Reviewed
Prof. M.Sc. Stefan Weiherer
Hochschule Ansbach
Hochschule Ansbach - Fakultät Technik
Residenzstr. 8
91522 Ansbach
T 0981 4877-320 stefan.weiherer[at]hs-ansbach.de