Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.4382
Publisher DOI: 10.3390/designs6030050
Title: Analysis phase of lean six sigma methodology with scaled-down laboratory experiments for an industrial-scale biogas plant
Language: English
Authors: Cinar, Samet 
Önen Cinar, Senem 
Ng, She Ming 
Kuchta, Kerstin 
Keywords: lean six sigma; anaerobic digestion; process optimization
Issue Date: 1-Jun-2022
Publisher: Multidisciplinary Digital Publishing Institute
Source: Designs 6 (3): 50 (2022)
Abstract (english): 
Although the benefits of the Lean Six Sigma (LSS) methodology have been proven for more than 20 years, it is still underutilized in environmental science, (e.g., in anaerobic digestion and biogas production). In order to obtain a structural and data-oriented perspective for process optimization in the renewable energy sector, LSS application must be considered one of the most valuable tools. To inform this paper, the LSS analysis phase was conducted in a scaled-down environment through detailed laboratory experiments. Results showed not only the feasibility of LSS application in biogas technology, but also some useful findings such as possible root causes for low production, such as impurities, waiting time, and existing pre-treatment methods for the defined problem. The results of the experiments show that the use of old substrates can reduce the biogas production up to half of the production with fresh substrates, and that even a 10% sand content can reduce the production up to 14.2%, which shows the need for a solution to these two issues.
URI: http://hdl.handle.net/11420/12876
DOI: 10.15480/882.4382
ISSN: 2411-9660
Journal: Designs 
Other Identifiers: doi: 10.3390/designs6030050
Institute: Umwelttechnik und Energiewirtschaft V-9 
Document Type: Article
Funded by: Deutscher Akademischer Austauschdienst (DAAD) 
More Funding information: Publishing fees were supported by the Funding Programme “Open Access Publishing” of the Hamburg University of Technology. We would like to thank the German Academic Exchange Service (DAAD) for their scholarship awarded to Senem Önen Cinar.
License: CC BY 4.0 (Attribution) CC BY 4.0 (Attribution)
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