کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
298374 511784 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An intermediate heat exchanging–depressurizing loop for nuclear hydrogen production
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
An intermediate heat exchanging–depressurizing loop for nuclear hydrogen production
چکیده انگلیسی

Sulfur–iodine (SI) cycle should overcome many engineering challenges to commercialize and prove its feasibilities to compete other thermo-chemical cycles. Some critical issues such as structural material, harsh operating condition and high capital costs were considered obstacles to be actualized. Operating SI cycle at low-pressure is one of the solutions to actualize the cycle. The flash operation with over-azeotropic HI at low pressure does not require temperature and pressure as high as those in the existing methods as well as heating for separation. The operation in low pressure reduces corrosion problems and enables us to use flexible selection of structural material. We devised an intermediate heat exchanging–depressurizing loop to eliminate high operating pressure in the hydrogen side as well as a large pressure difference between the reactor side and the hydrogen side. Molten salts are adequate candidates as working fluids under the high-temperature condition with homogeneous phase during pressure changing process. Using molten salts, 2.20–4.65 MW of pumping work is required to change the pressure from 1 bar to 7 MPa. We selected BeF2-containing salts as the possible candidates based on preliminary economic and thermal hydraulic consideration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Design - Volume 240, Issue 10, October 2010, Pages 2957–2962
نویسندگان
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