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Primary publication Conference or Workshop Item2023Exergy Based Efficiency Assessment for Fans in Comparison to Common Used Efficiency Definitions
;Brötz, Johannes ;Schänzle, ChristianPelz, Peter F.(FAN 2022 – International Conference on Fan Noise, Aerodynamics, Applications and Systems), (Senlis, Frankreich), (27.06.2022)The efficiency definition allows the comparison of two machines with each other. In general, the efficiency is defined as the ratio of usable power to the required power. This raises the question: what is the usable power? Most engineers discuss efficiency on grounds of the energy balance, i.e. the first law of thermodynamics. In this paper, we derive the exegetic efficiency taking the second law of thermodynamics into account, too. On this basis, a comparison between isentropic and exergetic efficiency is given. A high-pressure radial fan is used as an example and the differences are discussed. Therefore, measurements at a non-adiabatic fan is evaluated and the role of the heat flux to the environment is discussed. For a standard such as ISO 5801 "Fans - Performance testing using standardized airways", efficiency must not only be physically correct. It must also be simple and practical. Against this background, the outlook of this paper discusses when and which efficiency definition is appropriate and best suited for a standard.
Primary publication Conference or Workshop Item2023Open Peer Review for a Transparent and Engaging Scientific Environment: Towards a FAIR Journal
;Silva Pimenta, Izadora ;Logan, Kevin ;Leštáková, Michaela ;Pelz, Peter F. ;Günther, Anne-Christine ;Kerekes, Matthias ; et. al.Abt, Bettina(The Lower Decks. A Symposium on Janeway and Open Access Publishing), (London, United Kingdom), (2023-09-07)Teständerung für Request Correction
Curating research data to ensure it is findable, accessible, interoperable and reusable (FAIR) is gaining increasing importance in engineering sciences. ing.grid – FAIR Data Management in Engineering Sciences is a Diamond Open Access journal that provides a publishing platform for this field. As this field is being established, scientific discussion is of vital importance. Today, peer review hides much of the scientific discussion from the community and the public. In contrast, ing.grid uses an open peer review process that shows reviews, author responses and editor comments alongside the submitted preprints. By bringing the peer review process into the open, ing.grid ensures transparency and accountability and engages the relevant community.
The hybrid open peer review concept is put into practice using the Janeway preprint server and journal platforms: After submission via the preprint repository, reviewers, editors, authors and community members post comments. The review comments are specially flagged. Once manuscripts are accepted, they are sent to the journal through a custom-built interface and typesetting. Finally, they are published as peer reviewed articles. ing.grid relies on the support of the publishing services provided by the University and State Library at Technical University of Darmstadt (Germany). The library facilitates the TUjournals press site for scholar-led Diamond Open Access journals.
This cooperation allows ing.grid to draw on the library’s cataloguing and long term archiving experience. Moreover, common effort is made to develop a knowledge graph representing the journal. This will lead to improved discovery of published research and the transparency of interconnections between different contributions.
Primary publication Conference or Workshop Item2024