共查询到18条相似文献，搜索用时 46 毫秒
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气候变化与碳足迹 总被引：1，自引：0，他引：1
BV国际检验集团市场部 《家电科技》2010,(6):56-58
<正>碳足迹的概念为了减少温室气体排放,保护环境,有必要认识这些气体排放及其排放源。"碳足迹"是一个用于描述某个特定活动或实体产生温室气体(GHG)排放量的术语,因而它是供各个组织和个体评价温室气体排放对气候变化贡献的一种方式。测量碳足迹不仅限于公司内部产生的排放,也要关注整个供应链的排放。 相似文献
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张娜;赵琳;商文颖;吉星;李佳;黄玉辉 《中国电力》2024,57(1):133-139
以大连市为研究对象,测算大连市2010—2020年的能源消费碳足迹,计算碳足迹产值、碳足迹强度及生态压力,并以大连市2019年的数据为研究对象分析及计算电力等重点行业的碳排放。研究结果表明：1）从各能源类型来看,2010—2020年石油利用的碳足迹最大,煤炭次之,天然气占比最小;从重点行业来看,2019年电力行业最高,石化行业次之;大连的能源利用效率在2010—2014年不断提高,单位土地面积的产值提高较快,碳足迹带来的经济价值增长速度超过GDP增速,该阶段经济增长不依赖于化石能源;2)2010—2020年各种能源利用产生的碳足迹及其占比由高到低依次为煤炭、石油、天然气,煤炭利用所占的碳足迹比例逐年下降,石油与天然气与之相反。 相似文献
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耿光飞;党宣;刘洋 《电力系统及其自动化学报》2025,(5):32-39
“双碳”背景下,电力系统的碳流分析成为当前研究的重点之一。为快速精确估算电力系统碳排放流,在传统电力系统碳流计算的基础上,针对3种不同信息特征的系统提出平均碳势法、电量法及典型日估算法3种碳足迹估算方法。这3种估算方法的核心在于根据系统的不同已知条件,将系统的时序碳势等效为定值;在此基础上根据用电量与线损电量估算出用户碳足迹及线损碳足迹;最后,根据电力系统碳流守恒条件,并应用状态估计的思想方法,进一步提出含修正系数的碳足迹估算改进模型,以提高估算精度。算例表明,所提估算方法可快速估算出系统在一段时间内的碳足迹,且估算结果误差较小,为电力系统碳足迹估算问题提供了一套切实可行的计算方法。 相似文献
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随着分布式光伏发电补贴的逐渐降低以及无补贴平价上网进程的推进,分布式光伏发电项目盈利率逐渐降低,影响了发电侧投资的积极性,减缓了清洁发电和分布式能源的建设步伐。在全寿命周期下追踪分布式光伏发电项目的碳排放,将光伏发电产消者(photovoltaic power generation prosumer,PPGP)这类典型分布式光伏发电商纳入碳交易,拓展了其发电成本的分摊途径。文章构建了分布式光伏发电成本分摊博弈模型,通过MOEA/D-DRA算法求解各决策量的均衡解,并实现发电成本在发电侧和用户侧的最优分摊。经算例分析说明了碳交易可有效提高发电侧的收益,PPGP在对就近消纳的用户采取优惠措施时,需综合考虑碳价折扣和电价折扣对发电成本回收年限的双重影响。 相似文献
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陈洪波 《电力标准化与计量》2010,(2)
哥本哈根会议是一场国际政治、经济、科技和外交的大博弈。透过哥本哈根的成果和争论的焦点问题,可以看出国际利益格局和未来国际竞争的领域。中国应该制定低碳发展战略,推动低碳技术和产业的发展,以应对未来国际气候谈判,并提升经济竞争力。 相似文献
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《The Electricity Journal》2021,34(7):106996
Research and observable climate impacts point almost unequivocally to the need for a larger and faster climate mitigation effort that includes capturing and permanently storing CO2 both from large sources and from the atmosphere directly. Carbon capture and storage technologies are mature and available, with considerable real-world experience, but their deployment is still limited. We examine why this is so and suggest viable path forward. 相似文献
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《The Electricity Journal》2021,34(7):106997
By mid-century, global mean temperature increase from pre-industrial levels must remain below 1.5 °C to resist the forces of climate chaos. Recent studies emphasize the central role that the electricity system must play in achieving 100 % carbon-free generation, particularly through greater reliance on zero-carbon, firm output. Major firm power options that emit little or no carbon include hydro, nuclear, geothermal, and carbon capture and storage (CCS). This article examines the status of CCS, now applied at coal-fired power plants and under consideration at natural gas plants in North America and certain European nations. We identify key developments: (i) CCS can eliminate and permanently store virtually all fossil-fired CO2 emissions from power plants; (ii) following targeted policies, doing so would be cost-competitive with other strategies to generate zero-carbon, firm electricity; and (iii) combining aggressive upstream greenhouse gas emissions mitigation with near-100 % carbon capture at the power plant can create significant benefits on par with the lifecycle emissions of other renewable and clean generation resources. Finally, we examine the policy pathways, infrastructure, and jurisdictions central to CCS expansion—particularly in the U.S. and its subdivisions. Also discussed is the critical need to export CCS technology to all parts of the globe, especially areas like China and Southeast Asia that are likely to depend on fossil electricity for decades. 相似文献
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本文探讨了氯化锌电池生产工艺与电池炭棒头出水的关系。提出了封口温度、电池封口盖与锌筒壁的公差配合,并指出了测定电池炭棒透气率的必要性 相似文献
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Shijun Fu Yulong Ren 《International Journal of Electrical Power & Energy Systems》2011,33(5):1151-1160
Applying supply function equilibrium (SFE) and the first sealed bidding auction, this paper designs a motivating mitigation mechanism for generators based on coordinated regulation of emission market and electricity market. The mechanism separates emission market as two parts: initial emission market and secondary emission market. It begins with electricity regulator and environment regulator promulgating regulatory information. Then generators participate in initial emission market bidding for emission allowances. Based on allocated emission allowances, generators participate in electricity market bidding for load and set emission secondary trade for profit maximization. The mechanism divides generator’s bidding decision into two dynamic and coordinated stages: firstly in initial emission market, then in electricity market. We depict generator’s decision making as two stochastic parameter linear programming models. Solving these models, generator’s optimality demand function in initial emission market, optimality supply function in electricity market, and equilibrium of each market are achieved. We found that under the new mechanism, (i) both bidding price and bidding quantity in each market are ordered based on generators’ operation advantages from higher to lower respectively and (ii) the pricing and allocation rules in each market can effectively motivate generator to mitigate its CO2 emission. The new mechanism is truly an effective way to coordinate emission market and electricity market. Finally, we present a simulation to test its validity, and these results are fit well to the theoretical conclusions. 相似文献
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《The Electricity Journal》2021,34(7):106998
Carbon capture and storage (CCS) can help mitigate climate change on a global scale. This article examines the 26 CCS facilities currently in operation around the world that have safely captured and stored 300 million metric tonnes of carbon dioxide. These facilities demonstrate that the technology has successfully been deployed to scale and can safely capture and store carbon dioxide. This article shares the lessons learned that will help guide the future deployment of more projects. 相似文献