Journal of Fundamentals of Renewable Energy and Applications
Open Access
ISSN: 2090-4541
+44 1300 500008
ISSN: 2090-4541
+44 1300 500008
Andre Zurwellen
WELTEC BIOPOWER GmbH, Germany
Posters & Accepted Abstracts: J Fundam Renewable Energy Appl
Since the first construction of biogas plants, the technology has developed considerably. In view of this increase in efficiency of individual components and thus also of the overall system, many first-generation AD plants can no longer compete economically with new plants. By optimizing biogas plants by means of technical modifications or adaptations in plant biology, older biogas plants are still able to compete efficiently. The approaches to plant optimization are diverse. First of all, the current plant concept has to be analyzed. Repowering should not be carried out according to the book and should not only include the mere replacement of plant components. On the contrary, an inventory is important and then the individual service packages should be equipped with different modules, depending on the installation, requirements, approval situation and financial strength. Thinking in cycles is becoming more and more important. This starts with the substrates and stops with the optimum heat utilization. However, the weak points of many older plants are similar. Today, there are efficient products for feeding, with long-fiber or sticky substrates. By integrating new technology more cost-efficient input materials can be used. Likewise, technical progress has been made in cogeneration plants. Correspondingly, CHPs now have significantly higher efficiencies. This is also reflected in the efficiency of the entire plant. In practiceoriented examples from Germany and Great Britain the optimization of biogas plants with agricultural substrates and the digestion of organic wastes were presented.
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