TY  - JOUR
A1  - Hoffstadt, Kevin
A1  - Nikolausz, Marcell
A1  - Krafft, Simone
A1  - Bonatelli, Maria
A1  - Kumar, Vivekanantha
A1  - Harms, Hauke
A1  - Kuperjans, Isabel
T1  - Optimization of the ex situ biomethanation of hydrogen and carbon dioxide in a novel meandering plug flow reactor: start-up phase and flexible operation
JF  - Bioengineering
KW  - methanation
KW  - plug flow reactor
KW  - bubble column
KW  - biomethane
KW  - P2G
Y1  - 2024
U6  - http://dx.doi.org/10.3390/bioengineering11020165
SN  - 2306-5354
VL  - 11
IS  - 2
PB  - MDPI
CY  - Basel
ER  - 
TY  - JOUR
A1  - Pauksztat, Anja
A1  - Kuperjans, Isabel
A1  - Meyer, Jörg
T1  - Produktbezogene Referenzwerte für Energieeffizienz und CO2-Emissionen
JF  - Energiewirtschaftliche Tagesfragen : et ; Zeitschrift für Energiewirtschaft, Recht, Technik und Umwelt
Y1  - 2005
SN  - 0013-743X
SN  - 0720-6240
VL  - 55
IS  - 6
SP  - 374
EP  - 376
ER  - 
TY  - JOUR
A1  - Augenstein, Eckardt
A1  - Herbergs, S.
A1  - Kuperjans, Isabel
T1  - TOP-Energy : ein Werkzeug zur Optimierung der Gebäudeenergieversorgung
JF  - KI : Kälte, Luft, Klimatechnik
Y1  - 2006
SN  - 1865-5432
IS  - 5
SP  - 198
EP  - 201
ER  - 
TY  - JOUR
A1  - Jablonowski, Nicolai David
A1  - Kollmann, Tobias
A1  - Nabel, Moritz
A1  - Damm, Tatjana
A1  - Klose, Holger
A1  - Müller, Michael
A1  - Bläsing, Marc
A1  - Seebold, Sören
A1  - Krafft, Simone
A1  - Kuperjans, Isabel
A1  - Dahmen, Markus
A1  - Schurr, Ulrich
T1  - Valorization of Sida (Sida hermaphrodita) biomass for multiple energy purposes
JF  - GCB [Global Change Biology] Bioenergy
N2  - 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.
Y1  - 2016
U6  - http://dx.doi.org/10.1111/gcbb.12346
SN  - 1757-1707 (online)
SN  - 1757-1693 (print)
N1  - Special Issue: Perennial biomass crops for a resource constrained world
VL  - 9
IS  - 1
SP  - 202
EP  - 214
PB  - Wiley-VCH
CY  - Weinheim
ER  -