@inproceedings{KuperjansAugenstein2001,
  author    = {Kuperjans, Isabel and Augenstein, Eckardt},
  title     = {„EUSEBIA - Software zur Analyse und Verbesserung der betrieblichen Energiewirtschaft},
  series = {Optimierung in der Energieversorgung : Tagung Veitsh{\"o}chheim, 9. und 10. Oktober 2001. - (VDI-Berichte ; 1627)},
  booktitle = {Optimierung in der Energieversorgung : Tagung Veitsh{\"o}chheim, 9. und 10. Oktober 2001. - (VDI-Berichte ; 1627)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091627-3},
  pages     = {267 -- 268},
  year      = {2001},
  language  = {de}
}
@inproceedings{KuperjansSeitzWilhelm1998,
  author    = {Kuperjans, Isabel and Seitz, C.-W. and Wilhelm, H.-G.},
  title     = {Realisierung einer Fernw{\"a}rmeversorgung mit Kraft-W{\"a}rme-Kopplung f{\"u}r den Wohnwertpark Br{\"u}hl},
  series = {Energiemanagement in Kommunen und {\"o}ffentlichen Einrichtungen : Tagung Stuttgart, 16. und 17. September 1998. - (VDI-Berichte ; 1424)},
  booktitle = {Energiemanagement in Kommunen und {\"o}ffentlichen Einrichtungen : Tagung Stuttgart, 16. und 17. September 1998. - (VDI-Berichte ; 1424)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  organization    = {Gesellschaft Energietechnik},
  issn      = {3-18-091424-6},
  pages     = {129 -- 138},
  year      = {1998},
  language  = {de}
}
@article{RuppHandschuhRiekeetal.2019,
  author    = {Rupp, Matthias and Handschuh, Nils and Rieke, Christian and Kuperjans, Isabel},
  title     = {Contribution of country-specific electricity mix and charging time to environmental impact of battery electric vehicles: A case study of electric buses in Germany},
  series = {Applied Energy},
  volume    = {237},
  journal   = {Applied Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0306-2619},
  doi       = {10.1016/j.apenergy.2019.01.059},
  pages     = {618 -- 634},
  year      = {2019},
  language  = {en}
}
@inproceedings{StollenwerkRiekeDahmenetal.2016,
  author    = {Stollenwerk, Dominik and Rieke, Christian and Dahmen, Markus and Pieper, Martin},
  title     = {Biogas Production Modelling : A Control System Engineering Approach},
  series = {IOP Conference Series: Earth and Environmental Science. Bd. 32},
  booktitle = {IOP Conference Series: Earth and Environmental Science. Bd. 32},
  issn      = {1755-1315},
  doi       = {10.1088/1755-1315/32/1/012008},
  pages     = {012008/1 -- 012008/4},
  year      = {2016},
  language  = {en}
}
@article{HoffstadtPohenDickeetal.2020,
  author    = {Hoffstadt, Kevin and Pohen, Gino D. and Dicke, Max D. and Paulsen, Svea and Krafft, Simone and Zang, Joachim W. and Fonseca-Zang, Warde A. da and Leite, Athaydes and Kuperjans, Isabel},
  title     = {Challenges and prospects of biogas from energy cane as supplement to bioethanol production},
  series = {Agronomy},
  volume    = {10},
  journal   = {Agronomy},
  number    = {6},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2073-4395},
  doi       = {10.3390/agronomy10060821},
  year      = {2020},
  abstract  = {Innovative breeds of sugar cane yield up to 2.5 times as much organic matter as conventional breeds, resulting in a great potential for biogas production. The use of biogas production as a complementary solution to conventional and second-generation ethanol production in Brazil may increase the energy produced per hectare in the sugarcane sector. Herein, it was demonstrated that through ensiling, energy cane can be conserved for six months; the stored cane can then be fed into a continuous biogas process. This approach is necessary to achieve year-round biogas production at an industrial scale. Batch tests revealed specific biogas potentials between 400 and 600 LN/kgVS for both the ensiled and non-ensiled energy cane, and the specific biogas potential of a continuous biogas process fed with ensiled energy cane was in the same range. Peak biogas losses through ensiling of up to 27\% after six months were observed. Finally, compared with second-generation ethanol production using energy cane, the results indicated that biogas production from energy cane may lead to higher energy yields per hectare, with an average energy yield of up to 162 MWh/ha. Finally, the Farm²CBG concept is introduced, showing an approach for decentralized biogas production.},
  language  = {en}
}
@inproceedings{KreyerEsch2017,
  author    = {Kreyer, J{\"o}rg and Esch, Thomas},
  title     = {Simulation Tool for Predictive Control Strategies for an ORCSystem in Heavy Duty Vehicles},
  series = {European GT Conference 2017},
  booktitle = {European GT Conference 2017},
  pages     = {16 Seiten},
  year      = {2017},
  abstract  = {Scientific questions - How can a non-stationary heat offering in the commercial vehicle be used to reduce fuel consumption? - Which potentials offer route and environmental information among with predicted speed and load trajectories to increase the efficiency of a ORC-System? Methods - Desktop bound holistic simulation model for a heavy duty truck incl. an ORC System - Prediction of massflows, temperatures and mixture quality (AFR) of exhaust gas},
  language  = {en}
}
@article{Kuperjans2011,
  author    = {Kuperjans, Isabel},
  title     = {Gute Planung ist alles : Energieeffizienz in der Pharmaproduktion},
  series = {Pharma + Food},
  volume    = {2011},
  journal   = {Pharma + Food},
  number    = {2},
  publisher = {H{\"u}thig},
  address   = {Heidelberg},
  issn      = {1434-8942},
  pages     = {8 -- 10},
  year      = {2011},
  language  = {de}
}
@article{BlockViebahnJungbluth2024,
  author    = {Block, Simon and Viebahn, Peter and Jungbluth, Christian},
  title     = {Analysing direct air capture for enabling negative emissions in Germany: an assessment of the resource requirements and costs of a potential rollout in 2045},
  series = {Frontiers in Climate},
  volume    = {6},
  journal   = {Frontiers in Climate},
  publisher = {Frontiers},
  address   = {Lausanne},
  issn      = {2624-9553},
  doi       = {10.3389/fclim.2024.1353939},
  pages     = {18 Seiten},
  year      = {2024},
  abstract  = {Direct air capture (DAC) combined with subsequent storage (DACCS) is discussed as one promising carbon dioxide removal option. The aim of this paper is to analyse and comparatively classify the resource consumption (land use, renewable energy and water) and costs of possible DAC implementation pathways for Germany. The paths are based on a selected, existing climate neutrality scenario that requires the removal of 20 Mt of carbon dioxide (CO2) per year by DACCS from 2045. The analysis focuses on the so-called "low-temperature" DAC process, which might be more advantageous for Germany than the "high-temperature" one. In four case studies, we examine potential sites in northern, central and southern Germany, thereby using the most suitable renewable energies for electricity and heat generation. We show that the deployment of DAC results in large-scale land use and high energy needs. The land use in the range of 167-353 km2 results mainly from the area required for renewable energy generation. The total electrical energy demand of 14.4 TWh per year, of which 46\% is needed to operate heat pumps to supply the heat demand of the DAC process, corresponds to around 1.4\% of Germany's envisaged electricity demand in 2045. 20 Mt of water are provided yearly, corresponding to 40\% of the city of Cologne's water demand (1.1 million inhabitants). The capture of CO2 (DAC) incurs levelised costs of 125-138 EUR per tonne of CO2, whereby the provision of the required energy via photovoltaics in southern Germany represents the lowest value of the four case studies. This does not include the costs associated with balancing its volatility. Taking into account transporting the CO2 via pipeline to the port of Wilhelmshaven, followed by transporting and sequestering the CO2 in geological storage sites in the Norwegian North Sea (DACCS), the levelised costs increase to 161-176 EUR/tCO2. Due to the longer transport distances from southern and central Germany, a northern German site using wind turbines would be the most favourable.},
  language  = {en}
}
@inproceedings{KuperjansTerpitzTerruhnetal.1999,
  author    = {Kuperjans, Isabel and Terpitz, J. and Terruhn, H. and Wilhelm, H.-G.},
  title     = {Simulation zur Konzeption und Analyse betrieblicher und kommunaler Nahw{\"a}rmesysteme},
  series = {Betriebliches Energiemanagement : Tagung Cottbus, 30. und 31. M{\"a}rz 1999. - (VDI-Berichte ; 1462)},
  booktitle = {Betriebliches Energiemanagement : Tagung Cottbus, 30. und 31. M{\"a}rz 1999. - (VDI-Berichte ; 1462)},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091462-9},
  pages     = {195 -- 204},
  year      = {1999},
  language  = {de}
}
@article{RuppSchulzeKuperjans2018,
  author    = {Rupp, Matthias and Schulze, Sven and Kuperjans, Isabel},
  title     = {Comparative life cycle analysis of conventional and hybrid heavy-duty trucks},
  series = {World electric vehicle journal},
  volume    = {9},
  journal   = {World electric vehicle journal},
  number    = {2},
  publisher = {MDPI},
  address   = {Basel},
  issn      = {2032-6653},
  doi       = {10.3390/wevj9020033},
  pages     = {Article No. 33},
  year      = {2018},
  abstract  = {Heavy-duty trucks are one of the main contributors to greenhouse gas emissions in German traffic. Drivetrain electrification is an option to reduce tailpipe emissions by increasing energy conversion efficiency. To evaluate the vehicle's environmental impacts, it is necessary to consider the entire life cycle. In addition to the daily use, it is also necessary to include the impact of production and disposal. This study presents the comparative life cycle analysis of a parallel hybrid and a conventional heavy-duty truck in long-haul operation. Assuming a uniform vehicle glider, only the differing parts of both drivetrains are taken into account to calculate the environmental burdens of the production. The use phase is modeled by a backward simulation in MATLAB/Simulink considering a characteristic driving cycle. A break-even analysis is conducted to show at what mileage the larger CO2eq emissions due to the production of the electric drivetrain are compensated. The effect of parameter variation on the break-even mileage is investigated by a sensitivity analysis. The results of this analysis show the difference in CO2eq/t km is negative, indicating that the hybrid vehicle releases 4.34 g CO2eq/t km over a lifetime fewer emissions compared to the diesel truck. The break-even analysis also emphasizes the advantages of the electrified drivetrain, compensating the larger emissions generated during production after already a distance of 15,800 km (approx. 1.5 months of operation time). The intersection coordinates, distance, and CO2eq, strongly depend on fuel, emissions for battery production and the driving profile, which lead to nearly all parameter variations showing an increase in break-even distance.},
  language  = {en}
}
@incollection{KnocheKruskaWeberetal.2001,
  author    = {Knoche, K. F. and Kruska, Martin and Weber, P. and Kuperjans, Isabel},
  title     = {Energiemanagement},
  series = {Lexikon Nachhaltiges Wirtschaften. - (Lehr- und Handb{\"u}cher zur {\"o}kologischen Unternehmensf{\"u}hrung und Umwelt{\"o}konomie)},
  booktitle = {Lexikon Nachhaltiges Wirtschaften. - (Lehr- und Handb{\"u}cher zur {\"o}kologischen Unternehmensf{\"u}hrung und Umwelt{\"o}konomie)},
  editor    = {Schulz, Werner F.},
  publisher = {Oldenbourg},
  address   = {M{\"u}nchen [u.a.]},
  isbn      = {3-486-24523-6},
  pages     = {88 -- 92},
  year      = {2001},
  language  = {de}
}
@incollection{BouvyKuperjans2004,
  author    = {Bouvy, C. and Kuperjans, Isabel},
  title     = {Mikro-Gasturbinen : eine neue Technologie zur Kraft-W{\"a}rme-Kopplung in kleinen und mittleren Unternehmen},
  series = {Entwicklungslinien der Energietechnik 2004},
  booktitle = {Entwicklungslinien der Energietechnik 2004},
  edition   = {CD-ROM-Ausg.},
  publisher = {VDI-Verlag},
  address   = {D{\"u}sseldorf},
  year      = {2004},
  language  = {de}
}
@inproceedings{PauksztatKuperjansdeHesselle2006,
  author    = {Pauksztat, Anja and Kuperjans, Isabel and de Hesselle, M.},
  title     = {Referenzformeln f{\"u}r Energiebedarf und CO2-Emissionen in der Glasindustrie},
  series = {Energieeffizienz - Chancen f{\"u}r die Zukunft : Tagung Berlin, 14. und 15. November 2006. - (VDI-Berichte ; 1951)},
  booktitle = {Energieeffizienz - Chancen f{\"u}r die Zukunft : Tagung Berlin, 14. und 15. November 2006. - (VDI-Berichte ; 1951)},
  edition   = {Nichtred. Ms.-Dr.},
  publisher = {VDI-Verl.},
  address   = {D{\"u}sseldorf},
  isbn      = {3-18-091951-5},
  pages     = {179 -- 190},
  year      = {2006},
  language  = {de}
}
@incollection{KruskaKuperjans1999,
  author    = {Kruska, Martin and Kuperjans, Isabel},
  title     = {An{\´a}lisis Thermodin{\´a}micos : [Cap{\´i}tulo 3.3]},
  series = {Uso racional de energ{\´i}a : eficiencia energ{\´e}tica y energ{\´i}as renovables. - (Manual para consultores y expertos)},
  booktitle = {Uso racional de energ{\´i}a : eficiencia energ{\´e}tica y energ{\´i}as renovables. - (Manual para consultores y expertos)},
  publisher = {Ministerio de Energ{\´i}a y Minas},
  address   = {Lima},
  pages     = {3.3-1 -- 3.3-15},
  year      = {1999},
  language  = {es}
}
@phdthesis{Kuperjans2000,
  author    = {Kuperjans, Isabel},
  title     = {Verfahren zur Analyse und Bewertung industrieller Energieanlagen},
  address   = {Aachen},
  pages     = {Getr. Z{\"a}hlung : graph. Darst.},
  year      = {2000},
  language  = {de}
}