Rapid Pulse Discharges: A New Approach to Particulate Filter Regeneration
快速脉冲放电:颗粒过滤器再生的新方法
基本信息
- 批准号:EP/H024492/1
- 负责人:
- 金额:$ 63.74万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2010
- 资助国家:英国
- 起止时间:2010 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The project will research a radically new approach to cleaning surfaces that uses pulsed electric discharges to efficiently regenerate engine exhaust particulate filters. It has class-leading features that make it potentially both commercially and technically very attractive.IC engines are the major source of motive power in the world, a fact that is expected to continue well into this century. Whilst diesel engines emit low CO2 emissions, and have good fuel economy and good durability, they emit significant amounts of particulate matter (PM) emissions that are potentially harmful. Engine and vehicle legislation introduced in the EU, US and Asia can only be achieved with the use of diesel particulate filters (DPFs) with further reductions proposed for 2013. Without regular cleaning (regeneration) DPFs become clogged after about 150 miles of vehicle operation leading to a high exhaust back-pressure on the engine, resulting in poor performance and fuel economy. Whilst current DPFs yield >95% reductions in PM by forcing the gas stream through a porous ceramic wall, to-date the regeneration systems suffer from high power consumption, unreliability, unacceptably high cost and limited choice of materials, or are simply too bulky and complex. The step-change in regeneration technology proposed here will achieve a more ideal system and could enable wider application of DPFs to a greater number of engines and applications.The research proposed here will achieve the advantages of a non-thermal non-oxidative regeneration system without either the sensitivity to filter geometry and pore structure or a prohibitively high power consumption, bulky, heavy and noisy regeneration system. The new concept uses pulsed electric discharges to rapidly and very efficiently remove the PM from the filter surface without oxidation. Preliminary results suggest that shock waves produced by pulsed electric discharges within the filter overcome surface forces to break the bond of the PM with the filter surface using as little as 10 W electrical power for a whole filter. The combined effect of the pressure waves within the filter and the electric field accompanying the discharge break up the agglomerated particulates and allow efficient removal of the PM from the filter using a small reverse flow. The PM is then captured in a container, from where it can be subsequently destroyed, e.g. by a robust and easily controlled electric heater, or compacted and stored, reducing carbon emissions. The result is the rapid, low power, durable, effective and low cost regeneration of diesel particulate filters without ash accumulation. A very significant additional advantage of electrical discharges are that they are attracted to the most electrically conducting sites within the filter, i.e. once the discharge has cleaned one region it will self select a region with higher PM loadings.The research is strongly supported by key partners Caterpillar and 3DX-Ray Ltd., who will be providing substantial support in terms of cash, equipment, staff time and exploitation paths. This will enhance the impact of the research, which is expected to be high in terms of new scientific and technical knowledge, commercial value and societal benefits to the environment.
该项目将研究一种全新的表面清洁方法,该方法使用脉冲放电来有效地再生发动机废气颗粒过滤器。它具有一流的功能,使其在商业和技术上都极具吸引力。内燃机是世界上动力的主要来源,这一事实预计将持续到本世纪。虽然柴油发动机二氧化碳排放量低,并且具有良好的燃油经济性和耐用性,但它们会排放大量具有潜在危害的颗粒物 (PM)。欧盟、美国和亚洲推出的发动机和车辆立法只能通过使用柴油颗粒过滤器 (DPF) 来实现,并建议在 2013 年进一步减少使用。如果不定期清洁(再生),DPF 在车辆运行约 150 英里后就会堵塞,导致导致发动机排气背压较高,导致性能和燃油经济性较差。虽然目前的 DPF 通过迫使气流穿过多孔陶瓷壁而使 PM 减少 95% 以上,但迄今为止,再生系统的能耗高、可靠性差、成本高得令人无法接受,材料选择有限,或者体积太大,无法满足需要。复杂的。这里提出的再生技术的阶跃变化将实现更理想的系统,并且可以使 DPF 更广泛地应用于更多的发动机和应用。这里提出的研究将实现非热非氧化再生系统的优点,而无需要么是对过滤器几何形状和孔隙结构的敏感性,要么是过高的功耗、体积大、重且噪音大的再生系统。新概念使用脉冲放电来快速、高效地去除过滤器表面的颗粒物,而不会发生氧化。初步结果表明,过滤器内的脉冲放电产生的冲击波克服了表面力,破坏了 PM 与过滤器表面的结合,整个过滤器的电力仅需 10 W。过滤器内的压力波和伴随放电的电场的综合作用会分解团聚的颗粒,并允许使用小的逆流从过滤器中有效去除 PM。然后,PM 被捕获在容器中,随后可以从容器中将其销毁,例如:通过坚固且易于控制的电加热器,或压实并储存,减少碳排放。其结果是柴油颗粒过滤器能够快速、低功率、耐用、有效且低成本地再生,且不会积灰。放电的一个非常重要的额外优势是它们被吸引到过滤器内导电性最强的位置,即一旦放电清洁了一个区域,它就会自行选择一个具有较高颗粒物负载的区域。该研究得到了主要合作伙伴的大力支持Caterpillar 和 3DX-Ray Ltd. 将在现金、设备、员工时间和开发路径方面提供大量支持。这将增强研究的影响力,预计在新的科学技术知识、商业价值和对环境的社会效益方面将具有很高的影响力。
项目成果
期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Performance of Slotted Metallic Membranes as Particulate Filters
开缝金属膜作为颗粒过滤器的性能
- DOI:10.4271/2014-01-2807
- 发表时间:2014-10-13
- 期刊:
- 影响因子:0
- 作者:Chunxing Lin;B. Hillman;A. M. Williams
- 通讯作者:A. M. Williams
Pulsed Discharge Regeneration of Diesel Particulate Filters
柴油颗粒过滤器的脉冲放电再生
- DOI:http://dx.10.1007/s11090-013-9433-0
- 发表时间:2013
- 期刊:
- 影响因子:3.6
- 作者:Graupner K
- 通讯作者:Graupner K
Non-Thermal Particulate Filter Regeneration Using Rapid Pulse Electric Discharges
使用快速脉冲放电的非热颗粒过滤器再生
- DOI:http://dx.10.4271/2013-01-0518
- 发表时间:2013
- 期刊:
- 影响因子:0
- 作者:Mason A
- 通讯作者:Mason A
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Colin Garner其他文献
Letters tot the Editor
给编辑的信
- DOI:
10.1093/carcin/9.1.1 - 发表时间:
1988 - 期刊:
- 影响因子:4.7
- 作者:
Anthony Dipple;Colin Garner;Harris Curtis - 通讯作者:
Harris Curtis
The use of isotopes in the determination of absolute bioavailability of drugs in humans
使用同位素测定药物在人体内的绝对生物利用度
- DOI:
10.1517/17425255.2.3.419 - 发表时间:
2006-05-30 - 期刊:
- 影响因子:4.3
- 作者:
G. Lappin;M. Rowland;Colin Garner - 通讯作者:
Colin Garner
The use of accelerator mass spectrometry to obtain early human ADME/PK data
利用加速器质谱获得早期人类ADME/PK数据
- DOI:
10.1517/17425255.1.1.23 - 发表时间:
2005-06-01 - 期刊:
- 影响因子:4.3
- 作者:
G. Lappin;Colin Garner - 通讯作者:
Colin Garner
Colin Garner的其他文献
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{{ truncateString('Colin Garner', 18)}}的其他基金
Turbo-Discharging: Reducing CO2 Emissions from Current and Future Vehicles
涡轮放电:减少当前和未来车辆的二氧化碳排放
- 批准号:
EP/H050353/1 - 财政年份:2010
- 资助金额:
$ 63.74万 - 项目类别:
Research Grant
Diesel Engine Emissions During High EGR Operation
高 EGR 运行期间的柴油机排放
- 批准号:
EP/F031351/1 - 财政年份:2008
- 资助金额:
$ 63.74万 - 项目类别:
Research Grant
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Nanosecond Pulse Discharges at a Liquid-Vapor Interface and in Liquids: Discharge Dynamics and Plasma Chemistry
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- 批准号:
15H04203 - 财政年份:2015
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