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Renewable energy supply for power dominated, energy intense production processes - a systematic conversion approach for the anodizing process (2013)
Stollenwerk, Dominik ; Kuvarakul, T. ; Kuperjans, Isabel
Energiedesign 2020 : Sichere Strom- und Wärmeversorgung für die Industrie (2015)
Kuperjans, Isabel ; Weitzel, J.
Valorization of Sida (Sida hermaphrodita) biomass for multiple energy purposes (2016)
Jablonowski, Nicolai David ; Kollmann, Tobias ; Nabel, Moritz ; Damm, Tatjana ; Klose, Holger ; Müller, Michael A. ; Bläsing, Marc ; Seebold, Sören ; Krafft, Simone ; Kuperjans, Isabel ; Dahmen, Markus ; Schurr, Ulrich
The performance and biomass yield of the perennial energy plant Sida hermaphrodita (hereafter referred to as Sida) as a feedstock for biogas and solid fuel was evaluated throughout one entire growing period at agricultural field conditions. A Sida plant development code was established to allow comparison of the plant growth stages and biomass composition. Four scenarios were evaluated to determine the use of Sida biomass with regard to plant development and harvest time: (i) one harvest for solid fuel only; (ii) one harvest for biogas production only; (iii) one harvest for biogas production, followed by a harvest of the regrown biomass for solid fuel; and (iv) two consecutive harvests for biogas production. To determine Sida's value as a feedstock for combustion, we assessed the caloric value, the ash quality, and melting point with regard to DIN EN ISO norms. The results showed highest total dry biomass yields of max. 25 t ha⁻¹, whereas the highest dry matter of 70% to 80% was obtained at the end of the growing period. Scenario (i) clearly indicated the highest energy recovery, accounting for 439 288 MJ ha⁻¹; the energy recovery of the four scenarios from highest to lowest followed this order: (i) ≫ (iii) ≫ (iv) > (ii). Analysis of the Sida ashes showed a high melting point of >1500 °C, associated with a net calorific value of 16.5–17.2 MJ kg⁻¹. All prerequisites for DIN EN ISO norms were achieved, indicating Sida's advantage as a solid energy carrier without any post-treatment after harvesting. Cell wall analysis of the stems showed a constant lignin content after sampling week 16 (July), whereas cellulose had already reached a plateau in sampling week 4 (April). The results highlight Sida as a promising woody, perennial plant, providing biomass for flexible and multipurpose energy applications.
Preliminary evaluation of atomization characteristics of improved biodiesel for gas turbine application (2013)
Kumaran, P. ; Gopinathan, M. ; Razali, N. M. ; Kuperjans, Isabel ; Hariffin, B. ; Hamdan, H.
Planung und Bewertung der Gebäudeenergieversorgung mit TOP-Energy (2006)
Augenstein, Eckardt ; Herbergs, S. ; Kuperjans, Isabel
Formeln statt Zahlen : Referenzwerte Formeln zur energetischen Bewertung von Produktionsanlagen (2005)
Pauksztat, Anja ; Kuperjans, Isabel ; Meyer, Jörg
Charakterisierung der Biozönose von Biogasfermentern in Abhängigkeit verschiedener Substrate (2013)
Kaspar, K. ; Groebel, Simone ; Kuperjans, Isabel ; Dielmann, Klaus-Peter ; Selmer, Thorsten
Molekulargenetische Analysen zur Optimierung der Biogasgewinnung (2011)
Küppers, Christine ; Groebel, Simone ; Kuperjans, Isabel ; Dielmann, Klaus-Peter
Referenzformeln für Energiebedarf und CO2-Emissionen in der Glasindustrie (2006)
Pauksztat, Anja ; Kuperjans, Isabel ; de Hesselle, M.
Gute Planung ist alles : Energieeffizienz in der Pharmaproduktion (2011)
Kuperjans, Isabel
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