کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8071287 1521392 2018 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An upgraded Tesla turbine concept for ORC applications
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
An upgraded Tesla turbine concept for ORC applications
چکیده انگلیسی
The Tesla turbine is an original expander working on the principle of torque transmission by wall shear stress. The principle - demonstrated for air expanders at lab scale - has attractive features when applied to ORC expanders: it is suitable for handling limited flow rates (as is the case for machines in the range from 500 W to 5 kW), it can be developed to a reasonable size (rotor diameters between 0.1 and 0.3 m), with limited rotational speeds (from 1000 to 12000 rpm). The original concept is revisited, improving the stator layout (which is the main responsible for poor performance) and developing a modular design allowing to cover a wide power range, as well as to realize a perfectly sealed operation and including other fluid dynamics improvements. The flow model assumes complete real fluid behaviour, and includes several new concepts such as bladed channels for the stator and a detailed treatment of losses. Preliminary design sketches are presented and results discussed and evaluated. Several working fluids are considered, from refrigerants (R245fa, R134a, SES36) to hydrocarbons (n-Hexane, n-Pentane).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 158, 1 September 2018, Pages 33-40
نویسندگان
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