Micro turbo expander design for small scale ORC : Tesla turbine

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Tác giả: Lorenzo Talluri

Ngôn ngữ: eng

ISBN-13: 978-8855180603

ISBN-13: 978-8855180610

ISBN-13: 978-8855180627

Ký hiệu phân loại: 621 Applied physics

Thông tin xuất bản: Florence : Firenze University Press, 2020

Mô tả vật lý: 1 electronic resource (234 p.)

Bộ sưu tập: Tài liệu truy cập mở

ID: 241208

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.
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