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Faculty
- Energie · Gebäude · Umwelt (EGU) (1210) (remove)
11. Steinfurter Bioenergiefachtagung – Biogasanlagen – fit für die Zukunft, Steinfurt, März 2017
(2017)
The global salinity gradient power (SGP) potential is between 1650 - 2000 TWH/a and can be converted by mixing two solutions with different salinities. The harnessing of SGP for conversion into power can be accomplished by means of pressure retarded osmosis (PRO) and reverse electrodialysis (RED). PRO and RED are membrane-based technologies and have different working principles. PRO uses a semipermeable membrane to seperate a concentrated salt solution from a diluted solution. The diluted solution flows through the semipermeable membrane towards the concentrated solution, which increases the pressure within the concentrated solution chamber. The pressure is balanced by a turbine and electricity is generated. RED uses the transport of ions through cation and anion exchange membranes. The chambers between the membranes are alternately filled with a concentrated and diluted solution. The salinity gradient difference is the driving force in transporting ions that results in an electric potential, which is then converted to electricity. The comparison shows that there are two different fields of application for PRO and RED. PRO is especially suitable at extracting salinity energy from large concentration differences. In contrast, RED are not effect by increasing concentration differences. So PRO are supposed to focus on applications with brines or waste water and RED on applications with river water and seawater. Moreover, just a few measured values from processes under real conditions are available, which makes it difficult to compare PRO and RED.
Abwasserbelastung in Wäschereien - Lösungswege zur Verminderung, TÜV-Akademie Aachen, Dezember 1992
(1992)
Advanced monitoring and control of anaerobic digestion. VAAM-Jahrestagung, Online, Februar 2022
(2022)
Algorithmic Design and Resilience Assessment of Energy Efficient High-Rise Water Supply Systems
(2019)
Alkohol aus der Natur, "Tag der Technik" des Vereins Deutscher Ingenieure, Münster, Spetember 2004
(2004)
Anaerobic Fermentation of Organic Material: Biological Processes and Their Control Parameters
(2017)
Anpassung an den Klimawandel - Maßnahmen im urbanen Raum. Bürgerworkshop der Stadt Steinfurt.
(2022)
Assessment of noise mitigation measures during pile driving of larger offshore wind foundations
(2021)
Wind energy is an important source of electricity generation, but the construction of offshore wind foundations causes high underwater sound pressure, harming marine life. In this context limiting values for underwater noise emissions were set to protect the marine flora and fauna. Therefore, noise mitigation measures during pile driving are mandatory to comply with these limits. Current development in the wind industry lead to increasing wind turbine sizes, requiring a larger pile diameter, which leads to higher underwater noise emissions. As a result, the state of the art noise mitigation systems might not be sufficient and a combination of different technologies is necessary. This article focuses on the issue of noise mitigation during pile driving with respect to large pile sizes. First, the most tested and proven noise mitigation techniques (big bubble curtain, hydro sound damper, and IHC-noise mitigation system) are described, following an analysis of noise reduction measurements in applications at different offshore wind farm projects. In the end the suitability of current noise mitigation systems for large monopiles is evaluated, regarding their effectiveness and practicability.
Auf den Sommerfall kommt es an: Maßnahmen zur dauerhaften Begrenzung der Kaltwassertemperatur
(2019)