Title:
Increased Economic Efficiency of Dual Fluidized Bed Plants via Model-Based Control
Author(s):
Nigitz, T., Gölles, M., Aichernig, C., Schneider, S., Hofbauer, H., Horn, M.
Document(s):
Paper
Abstract:
Sustainable technologies can hardly compete with fossil-based technologies in terms of economic efficiency. One sustainable technology with special relevance due to its wide range of application and industrial readiness is biomass gasification using a dual fluidized bed (DFB). The economic challenges of a DFB gasification plant are addressed without constructional measures by adapting a current control strategy. This paper proposes a model-based control strategy aiming for increased economic efficiency of a DFB gasification plant considering exemplarily the “HGA Senden” in Ulm, Germany. A process analysis reveals high potential for improvement at the current control strategy for the synchronization of product gas production and utilization. A significant surplus of product gas is burned in an auxiliary boiler just for synchronization, and regular manual adjustments by the plant operators at the fuel feed are necessary. The model-based control strategy synchronizes by actuating the auxiliary boiler and the fuel feed simultaneously. The model-based control strategy is experimentally validated for over one month at the “HGA Senden” proofing a significant increase in economic efficiency. So, the economic efficiency of this technology for the sustainable production of energy and products is increased by model-based control.
Keywords:
control systems, industrial scale application, software, competitiveness, dual fluidized bed
Topic:
Biomass Conversion Technologies for Heating, Cooling and Electricity
Subtopic:
Gasification for power, CHP and polygeneration
Event:
27th European Biomass Conference and Exhibition
Session:
2BO.6.5
Pages:
533 - 538
ISBN:
978-88-89407-19-6
Paper DOI:
10.5071/27thEUBCE2019-2BO.6.5
Price:
FREE
