کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4990930 | 1457107 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Enhancement efficiency of organic Rankine cycle by using sorption system
ترجمه فارسی عنوان
بازدهی افزایش چرخه رادین آلی با استفاده از سیستم جذب
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کلمات کلیدی
سیستم جذب، سیستم جذب، سیستم جذب، چرخه رنکین ارگانیک، هزینه برق مقرون به صرفه،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
This paper focuses a method to enhance an organic Rankine cycle (ORC) efficiency by using the sorption systems (absorption and adsorption) for reducing the ORC condenser temperature. Energy efficiency, exergy efficiency and levelized electricity cost (LEC) are used to evaluate the optimal combined unit. Testing data from a 25 kWe R-245fa ORC prototype, a 1 TR water-LiBr absorption chiller and a 1 TR water-silica gel adsorption refrigeration are tested and analyzed performance curve of each technology to predict thermal performance of the ORC-sorption units at various operating conditions. Projection of the integrating unit of the ORC and sorption systems represent the better energy and exergy efficiencies, when the ORC condenser temperature is decreased. The ORC-absorption efficiencies in terms of energy and exergy increase 7.22%, while the ORC-adsorption system improve 12.46% compared with the normal ORC efficiencies. In economic impact, the LEC of the normal ORC unit is 0.1145 USD/kW h, which is higher than the ORC-absorption unit and the ORC-adsorption unit of 0.1088 USD/kW h and 0.1043 USD/kW h, respectively, at chilled water temperature output the absorption system at 7 °C. Thus, it could be concluded that the ORC-adsorption system is the optimal technique to enhance the ORC electricity generation process in terms of energy efficiency, exergy efficiency and electricity cost.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 122, 25 July 2017, Pages 368-379
Journal: Applied Thermal Engineering - Volume 122, 25 July 2017, Pages 368-379
نویسندگان
Nattaporn Chaiyat, Yiayang Wakaiyang, Xangpheuak Inthavideth,