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FutureMetrics:为什么燃煤发电站转换为使用木屑颗粒?

放大字体  缩小字体 发布日期:2018-10-30  来源:全球先进生物能源资讯  浏览次数:1427
 

这篇非常简短的白皮书说明了为什么所有认真考虑降低发电行业碳排放的国家或者地区应该在其可再生能源发电组合中使用颗粒替代煤炭。

This very brief white paper illustrates why all countries, states, or provinces that are serious about lowering carbon emissions in the power generation sector should include the use of pellets as a replacement for coal in their portfolio for renewable generation.

FutureMetrics多年来发表了大量关于减少电力行业二氧化碳排放的解决方案,其中包括颗粒共烧或全烧的白皮书。

FutureMetrics has published numerous white papers over the years about the efficacy of including pellet co-firing or full-firing in the menu of solutions for reducing CO2 emissions in the power sector.

 

FutureMetrics之前发布的白皮书还说明了为什么颗粒燃料是低碳燃料。这篇简短文章展示了在燃煤发电站使用颗粒燃料如何成为一部分解决方案的真实例子。

FutureMetrics’ white papers have also shown why pellet fuel is a low carbon solution. This short paper shows a real-world example of how pellet fueled pulverized coal power stations can be part of the solution.

 

下图来自上周,显示了英格兰的发电组合。

The chart below is from this past week and shows the generation mix in England.

目前,英国颗粒产生的大部分电力来自Drax发电站。Drax发电站有6个645兆瓦的发电机组,其中4个完全转换为使用木屑颗粒燃料。396兆瓦的Lynemouth发电站也已从煤炭转变为使用颗粒。

Currently, most of the power generated from pellets in the UK is by Drax Power. The Drax power station has six 645 megawatt units. Four of the six units are fully converted to use wood pellet fuel. The 396 megawatt Lynemouth power station has also been converted from coal to pellets.

 

在上面的图表中,人们可以清楚地看到风(浅绿色)如何在一周的早期没有吹,当然,太阳(黄色)从不在夜间闪耀。此外,颗粒发电正在承担一些峰值负荷,这降低了使用煤和天然气的需要。

In the chart above one can clearly see how the wind (light green) did not blow early in the week and, of course, the sun (yellow) never shines at night. Furthermore, power generation by pellets is taking some of the peaking load which lowers the need to use the coal and natural gas.

 

来自阿格斯(Argus Direct)2018年10月25日资讯:与去年相比,英国强劲生物质电力输出减少了一些联合循环燃气轮机(CCGT)的输出,而英国公用事业公司Drax在高峰负荷时间内一直在提高电力输出获取更高的价格。本月到目前为止,生物质电力输出平均为2.3GW。

From Argus Direct on October 25, 2018: Strong UK biomass output this month has pushed some combined-cycle gas turbines (CCGTs) out of the generation mix compared with last year, and UK utility Drax has been ramping up output during peak-load hours to capture higher prices. Biomass output has averaged 2.3GW so far this month.

由于645MW Drax机组和396MW Lynemouth发电站从煤炭到生物质的转换,生物质装机容量同比增加约1.1GW,总容量达到3.2GW左右。

Installed biomass capacity is around 1.1GW higher year on year because of the conversion from coal to biomass of the 645MW Drax unit 4 and the 396MW Lynemouth plant, taking total capacity to around 3.2GW.

 

CCGT的平均输出为12.4GW,低于2017年10月的13.5GW。

Output from CCGTs has averaged 12.4GW, down from 13.5GW in October 2017.

 

这清楚地表明,使用可再生的低碳颗粒燃料发电可提供可靠的按需基本负载和峰值容量。

This clearly demonstrates that using renewable low-carbon pellet fuel for power generation provides reliable on-demand baseload and peaking capacity.

 

该策略是产生可再生热能的唯一途径,其不受不可控因素和间歇性的影响。

This strategy is the only pathway for generating renewable thermal power that does not suffer from uncontrolled variability and intermittency.

来源:FutureMetrics 

By William Strauss

 

 

 

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