کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
647531 1457179 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimum design of limaçon gas expanders based on thermodynamic performance
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Optimum design of limaçon gas expanders based on thermodynamic performance
چکیده انگلیسی

Positive displacement expanders are acquiring popularity due to the current push to harvest energy from low-grade heat resources which have been previously overlooked. The limaçon technology does offer a simple and reliable design with a considerable potential for small-size (≤4 kW) power plants. This paper presents a thermodynamic model for the limaçon design and goes on to utilise this model in an optimisation procedure adopted to calculate the expanders geometric parameters for specific power and operating constraints. The numerical method employed to solve the thermodynamic model is presented for the benefit of the reader. Two design case studies, for expanders with and without an inlet control valve, are offered at the end of the paper to prove the validity of the presented concepts and their suitability for the analysis.


► Geometric and thermodynamic characteristics of limaçon gas expanders are presented.
► A thermodynamic model has been written and solved for this type of gas expanders.
► Stochastic optimisation has been employed to improve the expander performance.
► Numerical examples and performance graphs are presented for benefit of the reader.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 39, June 2012, Pages 188–197
نویسندگان
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