The Tesla expander was first developed by N. Tesla at the beginning of the 20th century. In recent years, due to the increasing appeal towards micro power generation and energy recovery from wasted flows, this cost effective expander technology rose a renovated interest. In the present study, a 2D numerical model is realized and a design procedure of a Tesla turbine for ORC applications is proposed. A throughout optimization method is developed by evaluating the losses of each component. The 2D model results are further exploited through the development of 3D computational investigation, which allows an accurate comprehension of the flow characteristics. Finally, two prototypes are designed, realized and tested. The former one is designed to work with air as working fluid. The second prototype is designed to work with organic fluids. The achieved experimental results confirmed the validity and the large potential applicative chances of this emerging technology in the field of micro sizes, low inlet temperature and low expansion ratios.
University of Florence, Italy - ORCID: 0000-0001-5342-2512
Titolo del libro
Micro turbo expander design for small scale ORC
Sottotitolo del libro
Tesla turbine
Autori
Lorenzo Talluri
Opera sottoposta a peer review
Numero di pagine
234
Anno di pubblicazione
2020
Copyright
© 2020 Author(s)
Licenza d'uso
Licenza dei metadati
Editore
Firenze University Press
DOI
10.36253/978-88-5518-061-0
ISBN Print
978-88-5518-060-3
eISBN (pdf)
978-88-5518-061-0
eISBN (xml)
978-88-5518-062-7
Collana
Premio Tesi di Dottorato
ISSN della collana
2612-8039
e-ISSN della collana
2612-8020