@techreport{AranzabalBaumannGaballanesetal.2022, author = {Aranzabal, Oier and Baumann, Birgit and Gaballanes, Imanol and Kristiansen, Rolf Aslaksrud and Kr{\"u}ger, Marc and Schrader, Len and Stallmeier, Nils and Wiedemann, Lisa and Zatika, Enekoitz}, title = {Umsetzung von problembasiertem Lernen in der beruflichen Bildung. Handbuch f{\"u}r Lehrende von Lehrenden}, publisher = {FH M{\"u}nster}, address = {M{\"u}nster}, doi = {10.25974/fhms-14976}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-149769}, pages = {64}, year = {2022}, abstract = {Das vorliegende Handbuch ist im Rahmen des EU-Projektes "Energyducation" (F{\"o}rderkennzeichen KA2 2018-1-ES01-KA202-050327) entstanden und von Berufsp{\"a}dagogen, {\"u}berwiegend praktizierenden Berufsschullehrerinnen und -lehrern, aus Deutschland (Institut f{\"u}r Berufliche Lehrerbildung an der FH M{\"u}nster), den Niederlanden (Alfa-college in Groningen), Norwegen (NTI-MMM AS in Oslo) und Spanien (CIFP USURBIL LHII in Usurbil) verfasst worden. Vorlage war eine englische Fassung die umfangreich {\"u}berarbeitet und im Hinblick auf die im deutschen Sprachraum vorherrschenden Begrifflichkeiten und Konzepte hin gesch{\"a}rft wurde. Es dokumentiert die mit dem projektbasierten Lernen gesammelten Erfahrungen aus der Sicht von Praktikern. Die Besonderheit ist, dass die Erfahrungen untereinander abgeglichen wurden und damit l{\"a}nder{\"u}bergreifende Erkenntnisse zusammengef{\"u}hrt wurden. Das vorliegende Handbuch versteht sich dabei nicht als wissenschaftliches Werk, greift aber Erkenntnisse aus der Lehreraus- und -fortbildung auf und stellt diese vor dem Hintergrund der gesammelten Erfahrungen dar.}, language = {de} } @techreport{Hinse2021, author = {Hinse, Michael}, title = {The Wells turbine: state of the art}, doi = {10.25974/ren_rev_2021_12}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136861}, pages = {63-66}, year = {2021}, abstract = {The first oscillating water column was invented in 1940. In the past decades the need of wave energy systems has significantly increased. This article quickly describes the Wells turbine and possibilities to enhance its performance and should answer the question: what are the design parameters that can be optimized? Furthermore it gives a small outlook about the history of oscillating Water Columns.}, language = {en} } @techreport{Haener2021, author = {H{\"a}ner, Jurek}, title = {Technologisches Lernen im Bereich Windenergie an Land}, doi = {10.25974/ren_rev_2021_07}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136814}, pages = {35-41}, year = {2021}, abstract = {Diese Arbeit befasst sich mit Kostentrends in Zusammenhang mit technologischem Lernen von Windenergie an Land in den USA, in Deutschland und weltweit. Ziel dieser Arbeit ist es, eine Lernkurve f{\"u}r Windenergie an Land zu bestimmen. Daf{\"u}r wurden Daten zu Stromgestehungskosten (LCOE) und Kosten f{\"u}r die Installation (COP) von Windenergieanlagen (WEA) im Zeitraum von 1983 bis einschließlich 2020 gesammelt, grafisch dargestellt und weitergehend ausgewertet. Die grafische Darstellung der Datenlage verdeutlicht die zeitliche Entwicklung der Technologie. Zur Beschreibung dieser Lernkurven wurden die Progress Ratio (PR) und Learning Rate (LR) in f{\"u}nf unterschiedlichen Modellen bestimmt. Anhand derer sich in Kombination mit der zuk{\"u}nftig installierten Leistung von WEA eine Prognose {\"u}ber zuk{\"u}nftige Kosten ableiten l{\"a}sst. Die ermittelten LR bewegen sich zwischen 13 \% und 28 \%, woraus sich LCOE im Jahr 2030 zwischen 44,03 US\$/MWh und 61 US\$/MWh ergeben.}, language = {de} } @techreport{Tillenburg2021, author = {Tillenburg, Dennis}, title = {Technical challenges of floating offshore wind turbines - An overview}, doi = {10.25974/ren_rev_2021_03}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136770}, pages = {13-18}, year = {2021}, abstract = {Floating offshore wind (FOW) holds the key to 80 \% of the total offshore wind resources, located in waters of 60 m and deeper in European seas, where traditional bottom-fixed offshore wind (BFOW) is not economically attractive. Many problems affecting floating offshore wind turbines (FOWT) were quickly overcome based on previous experience with floating oil rigs and bottom-fixed offshore wind. However, this technology is still young and there are still many challenges to overcome. This paper shows that electrical failures are amongst the most significant errors of FOWT. The most common cause was corrosion. It is also stated that the control system is most often affected, and that the Generator is frequently involved. Material corrosion is also the key factor when it comes to the most common overall reason for failures. A particular attention must be paid to mooring line fracture. Mooring lines are especially vulnerable to extreme sea conditions and the resulting fatigue, corrosion, impact damage, and further risks. It must be stated that the primary challenge is that of economics. Over time technological costs will decline making FOW more competitive and hence attractive for greater depth.}, language = {en} } @techreport{Olbertz2021, author = {Olbertz, Niklas}, title = {Sustainable hydro-power plants with focus on fish-friendly turbine design}, doi = {10.25974/ren_rev_2021_13}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136876}, pages = {67-71}, year = {2021}, abstract = {The impact of hydro-power plants on the ecosystem was studied with focus on the fish mortality and types of damage for many years. The fish mortality have a wide range of causes. Types of damage can be different and are caused by different parts of the power plant. The most dangerous part of the system are the fast moving turbine blades. They can cause blade strike and barotrauma due to the high speeds. Different types of turbines were developed for a better survival rate. Five different types of different research groups and manufacturers are presented in this paper. By considering those newly developed turbine designs, a fish survival rate from 96 \% to 100 \% is achieved.}, language = {en} } @techreport{Tchorz2021, author = {Tchorz, Enno}, title = {Sensorless maximum power point tracking systems in wind energy conversion systems - A review}, doi = {10.25974/ren_rev_2021_05}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136791}, pages = {24-29}, year = {2021}, abstract = {Wind energy conversion systems have attracted considerable attention as a renewable energy source due to depleting fossil fuel reserves and environmental concerns as a direct consequence of using fossil fuel and nuclear energy sources. The increasing number of wind turbines increases the interest in efficient systems. The power output of a wind energy conversion system depends on the accuracy of the maximum power tracking system, as wind speed changes constantly throughout the day. Maximum power point tracking systems that do not require mechanical sensors to measure the wind speed offer several advantages over systems using mechanical sensors. In this paper four different approaches that do not use mechanical sensors to measure the wind speed will be presented; the assets and drawbacks of these systems are highlighted, and afterwards the examined algorithms will be compared based on different characteristics. Finally, based on the analysis, an evaluation is made as to which of the presented algorithms is the most promising.}, language = {en} } @techreport{Speller2021, author = {Speller, Julian}, title = {Self-build small wind turbines - A review}, doi = {10.25974/ren_rev_2021_10}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136845}, pages = {53-56}, year = {2021}, abstract = {Self-build small wind turbines are used for rural electrification in the developed and developing world as well as for educational purposes. To give an overview about self-build small wind turbines a systematic literature review was conducted. The identified literature deals with two different vertical and horizontal axis turbine designs. The vertical axis turbines are both prototypes while one of the horizontal axis designs, the design by Piggott is widely used in rural electrification projects. Different papers dealing with the optimization of the Piggott design exist. In retrospect the conduction of a holistic review was not possible due to limited resources and length of this review. Nevertheless it can give a quick overview and a starting point for further research.}, language = {en} } @techreport{Steinigeweg2021, author = {Steinigeweg, Joshua}, title = {Review of the suitability of thermoplastic rotor blades in terms of the circular economy}, doi = {10.25974/ren_rev_2021_06}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-136809}, pages = {30-34}, year = {2021}, abstract = {Wind energy has steadily gained importance in the generation of renewable energy over the last 25 years. A wind turbine has an average life expectancy of about 25 years. After that, thermoplastic composite materials from the rotors, among other things, accumulate and have to be recycled. Previous methods, such as landfilling, incineration and pyrolysis, have not yet proven to be effective in terms of the circular economy because the recycled material cannot be reused for equivalent products. The use of thermoplastic materials can be a sensible alternative, as thermoplastic resins can be recycled almost without loss of value due to their properties. Recycling of fibreglass is also possible with less loss of stiffness. In the future, it will be crucial to scale up thermoplastic rotor blades and create a market for the recycled material.}, language = {en} } @techreport{RitterReichardtHielscher2021, author = {Ritter, Prof. Dr. Guido and Reichardt, Kirsten and Hielscher, Janina}, title = {NRW isst besser!}, publisher = {FH M{\"u}nster}, isbn = {978-3-947263-30-1}, doi = {10.25974/fhms-14279}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-142796}, pages = {160}, year = {2021}, abstract = {Wegweiser zu einem nachhaltigeren Ern{\"a}hrungssystem in NRW}, language = {de} } @techreport{Bornemann2012, author = {Bornemann, Sebastian}, title = {Mediendidaktische Konzepte und Gestaltungsgrunds{\"a}tze f{\"u}r die akademische Lehrerbildung. Ergebnisse aus dem Forschungsprojekt "Erfolgskriterien von Web 2.0 in didaktischen Innovationen"}, publisher = {FH M{\"u}nster}, doi = {10.25974/fhms-655}, url = {http://nbn-resolving.de/urn:nbn:de:hbz:836-opus-6550}, year = {2012}, abstract = {Die Studie untersucht den didaktischen Mehrwert partizipativer Medien in der hochschulischen Lehrerbildung. Die hier entwickelten Gestaltungsgrunds{\"a}tze f{\"u}r die Planung von Lernarrangements mit Social Media sollen dazu beitragen, die Besonderheiten dieser Medien in die didaktische Konzeption einzubinden. Auf diese Weise soll ein Beitrag dazu geleistet werden, den didaktischen Mehrwert von Social Media in Lernarrangements zu entfalten.}, language = {de} }