کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8071726 | 1521398 | 2018 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Waste cold energy recovery from liquefied natural gas (LNG) regasification including pressure and thermal energy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Waste cold energy recovery from liquefied natural gas (LNG) regasification including pressure and thermal energy Waste cold energy recovery from liquefied natural gas (LNG) regasification including pressure and thermal energy](/preview/png/8071726.png)
چکیده انگلیسی
The world has been concentrating on waste heat recovery for several decades. The attention has recently been turned to waste energy in cold streams. This work focuses on the recovery of waste cold energy released from the Liquefied Natural Gas (LNG) regasification process, including pressure energy and thermal energy. A direct expansion configuration involving different steps of expansion and mass flow rate extraction at intermediate pressure levels is adopted in the mathematical models for pressure energy recovery. A direct-configuration organic Rankine cycle (ORC) is employed subsequently to recover residual cold energy. An equation of state for methane (the main component of LNG) is used to estimate the thermodynamic properties of LNG in a long-range phase transition of the regasification process. The modified Peng-Robinson (PR) and the Soave-Redlich-Kwong (SRK) equations of state are used to calculate thermodynamic properties of the ORC working fluids. All the models are developed and solved using MATLAB. By adopting propane as the ORC working fluid, the multistage expansion and thermal energy extraction can recover 215â¯kJ per kilogram of flowing LNG, which can generate 1.7â¯GWh annually for 1â¯kg/s LNG, with a payback period less than seven years.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 152, 1 June 2018, Pages 770-787
Journal: Energy - Volume 152, 1 June 2018, Pages 770-787
نویسندگان
Si Le, Jui-Yuan Lee, Cheng-Liang Chen,