کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7160231 | 1462840 | 2016 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A theoretical investigation of energy efficiency improvement by coal pre-drying in coal fired power plants
ترجمه فارسی عنوان
تحقیق نظری در مورد بهبود بهره وری انرژی از طریق پیش خشک شدن ذغال سنگ در نیروگاه های زغال سنگ
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کلمات کلیدی
تولید برق زغال سنگ، پیش از خشک شدن ذغال سنگ، بهبود بهره وری انرژی، تجزیه و تحلیل نظری،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
چکیده انگلیسی
A theoretical investigation of the principles of energy efficiency improvement in coal-fired power plants by removing a portion of the coal moisture content was performed. The relationship between the degree of pre-drying and coal's energy flow rate, boiler efficiency and power auxiliary rate were comprehensively formulized and graphically presented. The performance of the coal pre-drying power plants using coals with different initial moisture content was also discussed. The results showed that, coal's energy flow rate would increase by 0.6-1.5% as 0.1Â kg moisture was removed per kg raw coal. The boiler efficiency would increase by 0.4-0.5% and the power auxiliary rate would slightly decrease by â¼0.2%. Eventually, the net efficiency of the power plant could increase in the range of 0.6-0.9%. Economic evaluation showed that the power plant performed more economically compared with the plant without coal pre-drying. This work provides a broadly applicable approach to formulaically revealing the principles of energy efficiency improvement in power plants by coal pre-drying.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 122, 15 August 2016, Pages 580-588
Journal: Energy Conversion and Management - Volume 122, 15 August 2016, Pages 580-588
نویسندگان
Cheng Xu, Gang Xu, Shifei Zhao, Wei Dong, Luyao Zhou, Yongping Yang,