Piringer, Gerhard

Thumbnail Image
Official Name
Piringer, Gerhard
Main Affiliation
Akademische Titel
DI, Ph.D.
Email
gerhard.piringer@fh-burgenland.at
ORCID
Scopus Author ID
23095387800
Status
staff

Research Outputs

2013 2013 0.0 0.0 0.2 0.2 0.4 0.4 0.6 0.6 0.8 0.8 1.0 1.0 1.2 1.2 1.4 1.4 1.6 1.6 1.8 1.8 2.0 2.0

Filters

2
2
Reset filters

Settings

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Publication
    Potential of different Sorghum bicolor (L. moench) varieties for combined ethanol and biogas production in the Pannonian climate of Austria
    (Elsevier, 2013)
    Theuretzbacher, Franz 
    ;
    Bauer, Alexander 
    ;
    Lizasoain, Javier 
    ;
    Becker, Manuel 
    ;
    Rosenau, Thomas 
    ;
    Potthast, Antje 
    ;
    Friedl, Anton 
    ;
    Piringer, Gerhard 
    ;
    Gronauer, Andreas 
    The objective of this study is to estimate the energetic yields of a combined ethanol and biogas production from three different sorghum varieties, and to compare them to a similar estimate for maize in order to demonstrate the suitability of sorghum as an alternative biomass source. The sorghum varieties “SG1” (Sugargraze I) and “SG2” (Sugargraze II), which produce fermentable sugars, as well as the grain variety “C” (Chopper), which produces starch, were grown on experimental plots in eastern Austria. The harvested biomass was analysed for its contents of cellulose, hemicellulose, lignin, crude protein, crude fats, starch and sugar. For the calculation of the energy output, ethanol and biogas yields were calculated corresponding to accepted standard methods. The potential of sorghum for energy production has been demonstrated. The highest energy outputs were achieved by the SG1 and the C varieties, delivering approximately 150 GJ ha−1 and 156 GJ ha−1. Compared to data obtained from different maize varieties in the same year and under similar conditions, this means an equal or even increased energy output per hectare. The SG2 variety only yielded 121 GJ ha−1 worth of ethanol and biogas. Bioethanol and biogas production were unequally distributed between sugar and starch varieties: SG1 provided 70% of its energy output as methane and the rest as bioethanol, whereas the grain variety C yielded 46% methane and 54% bioethanol.
      65  1Scopus© Citations 14
  • No Thumbnail Available
    Publication
    Biogas Production from Steam-Exploded Miscanthus and Utilization of Biogas Energy and CO2 in Greenhouses
    (Springer, 2013)
    Menardo, Simona 
    ;
    Bauer, Alexander 
    ;
    Theuretzbacher, Franz 
    ;
    Piringer, Gerhard 
    ;
    Nilsen, Paal Jahre 
    ;
    Balsari, Paolo 
    ;
    Pavliska, Oksana 
    ;
    Amon, Thomas 
    The costs of producing protected vegetables comprise up to 78 % of the total operating costs in greenhouses. These expenses mainly result from energy consumption. Increasing energy efficiency and expanding the use of renewable energy sources are essential for global competitiveness. The aim of this study is to optimize methane production from miscanthus and to evaluate the potential use of miscanthus as a source of electrical energy, heat, and CO2 in vegetable greenhouses. To optimize methane yield, miscanthus was pretreated by steam explosion using different time/temperature combinations. Pretreatment resulted in a more than threefold increase of methane yield from anaerobic digestion (374 lN kgVS−1) compared with untreated miscanthus. Based on technical parameters from two greenhouses (in Northern and Southern Europe), four different energy balances were established. The balances showed that using methane produced by pretreated miscanthus in vegetable greenhouses can enhance the entire process and therefore make it more sustainable.
      68  1Scopus© Citations 62