کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6759620 | 1431396 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Heat rejection with mechanical pumped cooling loop for lunar surface nuclear reactor power system
ترجمه فارسی عنوان
رد گرما با حلقه خنک کننده مکانیکی پمپ برای سیستم قدرت راکتور هسته ای سطح ماه
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کلمات کلیدی
قدرت راکتور هسته ای، سطح قمری، رد گرما، حلقه خنک کننده مکانیکی پمپ، دمای خنک کننده،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The fission heat in a lunar surface nuclear reactor power system transported to the Stirling engine could not be fully converted into electrical power and the exhaust heat was released to the heat rejection system. Based on the technology feasibility, a mechanical pumped cooling loop was proposed for heat rejection system, composed mainly of mechanical pumps, cooling loops and radiator plates. A heat rejection model with the convective and radiative heat transfer was developed. The convective heat transfer coefficient was larger than the radiative heat transfer coefficient by two orders of magnitude and the radiative heat transfer was the primary step controlling the heat rejection process. The radiator size and mass of the heat rejection system were calculated by the model and they were greatly affected by the cooling temperature. Increasing cooling temperature could reduce the required radiator size and mass of the heat rejection system, since higher cooling temperature could increase the heat rejection driving force. Considering the thermal efficiency of the nuclear power system, the reasonable cooling temperature would be in the range of 480â¯K-520â¯K, with the lowest specific mass of the lunar surface nuclear power system being 66â¯kg/kWe achieved in this range.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Design - Volume 325, 15 December 2017, Pages 149-155
Journal: Nuclear Engineering and Design - Volume 325, 15 December 2017, Pages 149-155
نویسندگان
Senqing Fan, Minghai Li, Sizhong Li, Tong Zhou, Yupeng Hu, Song Wu,