پیامدهای زیست محیطی سیستم تولید برق ترکیبی زغال سنگ-باد
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پیامدهای زیست محیطی سیستم تولید برق ترکیبی زغال سنگ-باد

عنوان فارسی مقاله: پیامدهای زیست محیطی سیستم تولید برق ترکیبی زغال سنگ-باد چین
عنوان انگلیسی مقاله: Environmental implications of China’s wind-coal combined power generation system
مجله/کنفرانس: منابع، حفاظت و بازیافت - Resources, Conservation and Recycling
رشته های تحصیلی مرتبط: محیط زیست، مهندسی انرژی
گرایش های تحصیلی مرتبط: آلودگی های محیط زیست، انرژی های تجدیدپذیر، فناوری های انرژی
کلمات کلیدی فارسی: سیستم برق ترکیبی زغال سنگ-باد، انعطاف پذیری زغال سنگ، بهره وری تبدیل انرژی، انتشار آلاینده ها
کلمات کلیدی انگلیسی: Wind-coal combined power system، Coal flexibility، Energy efficiency، Pollutant emissions
نوع نگارش مقاله: مقاله پژوهشی (Research Article)
نمایه: Scopus - Master Journal List - JCR
شناسه دیجیتال (DOI): https://doi.org/10.1016/j.resconrec.2018.11.012
دانشگاه: School of Energy Power & Mechanical Engineering, North China Electric Power University, Changping, Beijing, 102206, China
ناشر: الزویر - Elsevier
نوع ارائه مقاله: ژورنال
نوع مقاله: ISI
سال انتشار مقاله: 2019
ایمپکت فاکتور: 5/224 در سال 2017
شاخص H_index: 94 در سال 2019
شاخص SJR: 1/462 در سال 2017
شناسه ISSN: 0921-3449
شاخص Quartile (چارک): Q1 در سال 2017
فرمت مقاله انگلیسی: PDF
تعداد صفحات مقاله انگلیسی: 10
وضعیت ترجمه: ترجمه نشده است
قیمت مقاله انگلیسی: رایگان
آیا این مقاله بیس است: خیر
کد محصول: E11161
فهرست انگلیسی مطالب

Abstract


1- Introduction


2- Wind-coal combined power generation system


3- Data and results


4- Conclusion


References

نمونه متن انگلیسی مقاله

Abstract


China’s power supply structure is dominated by coal-fired power. As China’s renewable power expands, coal-fired power units are required to improve flexibility to balance power system. However, more flexible operation of coal power units increases energy consumption and pollutant emissions. This paper examines the energy efficiency, CO2 and pollutant emissions characteristics of China's generic wind-coal combined power generation system, and discusses pollution-minimizing dispatch strategies by modeling three hypothetical scenarios of wind-coal combined power generation systems. For day-scale analyses, we find expected displacement rates of coal consumption and CO2 emission decrease by wind fraction rate, indicating reduced energy savings from wind power per unit of increase in wind capacity. For NOx emission, we find that expected displacement rate reaches maximum value of 112% when wind fraction rate is equal to 0.27.For week-scale analysis, we simulate the coal consumption rate and emission factors with and without an operation of shutdown and startup of coal power units in the system. We suggest future study on dispatch decisions of startup/shutdown of coal power units to optimize power generation economically and environmentally.


Introduction


China has proposed an ambitious development plan for renewable energy (NDRC and SERC, 2011; NDRC and NEA, 2016; NEA and NDRC, 2017; Yuan, 2016a, b. The goal is to achieve 15% non-fossil energy supply by 2020 and 20% non-fossil energy supply by 2030, and the goal will mainly be achieved via expansion of wind and solar energy (Yuan et al., 2007, Yuan and Xu 2014a,b; Yuan, 2016a, b; Yuan and Na, 2016; Yuan and Lei, 2016; among others).With strong support of national policies, renewable power generation has experienced rapid development in the past decade (CEC, 2018). By the end of 2016, China has become the world's largest investor of wind and solar power capacity. Due to intermittency of wind and solar power generation, large-scale wind and solar integration onto power grid inevitably requires other generation sources to balance demand load (Denny and O’Malley, 2006; Valentino and Valenzuela, 2012; Lu et al., 2011; Lu et al., 2014; Liu et al., 2015; Na et al., 2018). China’s power supply structure is still dominated by coal-fired power, and the more flexible power sources such as gas turbine power generation and pumped-storage power generation account for only a small share. Many existing studies have studied the CO2 emissions scenarios in China’s energy and power system, but few works have addressed the impact of renewable integration on CO2emissions in the power system (Chen and Cai, 2017; Su and Fang, 2016; Liu et al., 2017; Peng and Xie, 2018; Zhou and Wang, 2018; Ye and Ren, 2018; Tang et al., 2018). In the three northern regions of China (North China, Northwest China, Northeast China), wind and solar power generation account for a larger proportion, and the system load is mainly balanced by coal-fired power units. Although wind and solar power can be considered to produce zero emissions, their intermittent and uncertainties can impose negative impacts on economics and emissions of peaking units in the system.

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