کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
645334 | 1457140 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Exergy-topological analysis and optimization of a binary power plant utilizing medium-grade geothermal energy
ترجمه فارسی عنوان
تجزیه و تحلیل توپوگرافی اگزرژیک و بهینه سازی نیروگاه دودویی با استفاده از انرژی زمین گرمایی متوسط
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
While it is generally accepted that high efficiency conversion of low- and medium-grade heat to electrical power strongly relies on a suitable combination of thermodynamic cycle and working fluid, the selection of suitable operating parameters may be of even more importance. This study shows that medium-grade geothermal heat-to-power conversion in a well-designed secondary regenerative Rankine cycle can achieve a high degree of thermodynamic perfection and exergy efficiency, without the use of high-cost advance powerfluids. The study is carried out by combining a recently developed exergy-topological analysis scheme with CyclePad®, an open-source cognitive thermodynamic tool. The powerful sensitivity analysis capability of CyclePad® is used to determine optimal operating conditions. In addition, application of an extensive exergy-flow diagram, which includes flows in the geothermal production well and cooling cycle, is discussed. A key strategy for improving the thermodynamic efficiency of medium-grade geothermal power plants is also presented.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 88, 5 September 2015, Pages 459-463
Journal: Applied Thermal Engineering - Volume 88, 5 September 2015, Pages 459-463
نویسندگان
Deodat Makhanlall, Fuzhen Zhang, Ruina Xu, Peixue Jiang,