University of Natural Resources and Life Sciences, Vienna (BOKU) - Research portal
Gewählte Master / Diploma Thesis:
Jonas Leber
(2017):
Flexible Biogasproduktion für eine bedarfsgesteuerte Strombereitstellung - Potentiale eines angepassten Füttermanagements.
Master / Diploma Thesis - Institut für Landtechnik,
BOKU-Universität für Bodenkultur,
pp 68.
UB BOKU
obvsg
- Abstract:
- Due to the rising energy supply through renewable energies the marketing of balancing electricity through biogas plants has the chance to lead to new income opportunities. A discontinuous feeding regime is one approach for the implementation of a flexible biogas production. The thesis deals with the effects of a discontinuous feeding (feeding strategies 1x-, 3x- und 9x within 9 hours per day) in a semicontinuous experiment under laboratory conditions. The basic parameters are adopted from the biogas plant Bruck/Leitha such as feeding material, fermenter content, mesophilic digestion and organic loading rate. The thesis main objectives are the comparison of biogas production as well as the digestions process stability over 73 days. The biogas production was stable under discontinuous conditions. In comparison with the continuous biogas production from the biogas plant no difference in biogas production could be measured. Furthermore, strategies 1x- 3x- and 9x-feeding produced the same amount of biogas. Under different flexible feeding strategies, it was possible to ensure process stability. The influence of the determined biogas rate on a gas storage was simulated through a model which imitates the conditions of the biogas plant Bruck/Leitha. The discontinuous feeding could reduce the required gas storage by 11%. Under the conditions of biogas plant Bruck/Leitha it is shown that a discontinuous feeding regime could be an alternative feeding strategy for a demand driven energy supply. The reduction of the required gas storage with 11% is low and there is no significant improvement in comparison with the continuous feeding strategy.
- Beurteilende(r): Gronauer Andreas
- 1.Mitwirkender: Bauer Alexander