Thermodynamic Analysis of Supercritical CO2 Power Cycle with Fluidized Bed Coal Combustion
المؤلفون المشاركون
Geng, Chenchen
Shao, Yingjuan
Zhong, Wenqi
Liu, Xuejiao
المصدر
العدد
المجلد 2018، العدد 2018 (31 ديسمبر/كانون الأول 2018)، ص ص. 1-9، 9ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2018-07-24
دولة النشر
مصر
عدد الصفحات
9
التخصصات الرئيسية
الملخص EN
Closed supercritical carbon dioxide (S-CO2) Brayton cycle is a promising alternative to steam Rankine cycle due to higher cycle efficiency at equivalent turbine inlet conditions, which has been explored to apply to nuclear, solar power, waste heat recovery, and coal-fired power plant.
This study establishes 300MW S-CO2 power system based on modified recompression Brayton cycle integrated with coal-fired circulating fluidized bed (CFB) boiler.
The influences of two stages split flow on system performance have been investigated in detail.
In addition, thermodynamic analysis of critical operating parameters has been carried out, including terminal temperature difference, turbine inlet pressure/temperature, reheat stages, and parameters as well as compressor inlet pressure/temperature.
The results show that rational distribution of split ratio to the recompressor (SR1) achieves maximal cycle efficiency where heat capacities of both sides in the low temperature recuperator (LTR) realize an excellent matching.
The optimal SR1 decreases in the approximately linear proportion to high pressure turbine (HPT) inlet pressure due to gradually narrowing specific heat differences in the LTR.
Secondary split ratio to the economizer of CFB boiler (SR2) can recover moderate flue gas heat caused by narrow temperature range and improve boiler efficiency.
Smaller terminal temperature difference corresponds to higher efficiency and brings about larger cost and pressure drops of the recuperators, which probably decrease efficiency conversely.
Single reheat improves cycle efficiency by 1.5% under the condition of 600°C/600°C/25Mpa while efficiency improvement for double reheat is less obvious compared to steam Rankine cycle largely due to much lower pressure ratio.
Reheat pressure and main compressor (MC) inlet pressure have corresponding optimal values.
HPT and low pressure turbine (LPT) inlet temperature both have positive influences on system performance.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Geng, Chenchen& Shao, Yingjuan& Zhong, Wenqi& Liu, Xuejiao. 2018. Thermodynamic Analysis of Supercritical CO2 Power Cycle with Fluidized Bed Coal Combustion. Journal of Combustion،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1181992
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Geng, Chenchen…[et al.]. Thermodynamic Analysis of Supercritical CO2 Power Cycle with Fluidized Bed Coal Combustion. Journal of Combustion No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1181992
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Geng, Chenchen& Shao, Yingjuan& Zhong, Wenqi& Liu, Xuejiao. Thermodynamic Analysis of Supercritical CO2 Power Cycle with Fluidized Bed Coal Combustion. Journal of Combustion. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1181992
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1181992
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر