Fundamental study of biofuel combustion: flame stabilisation and emissions using advanced optical diagnostics

生物燃料燃烧的基础研究：使用先进光学诊断的火焰稳定和排放

基本信息

批准号：
EP/S017259/1
负责人：
Ruoyang Yuan
金额：
$ 43.81万
依托单位：
Loughborough University
依托单位国家：
英国
项目类别：
Fellowship
财政年份：
2019
资助国家：
英国
起止时间：
2019 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FS017259%2F1
关键词：
Fundamental study biofuel combustion flame

项目摘要

World-wide, energy conversion is currently dominated by the combustion of fossil fuels. Electricity generation and transport are key energy consumers and contribute significantly to atmospheric CO2, NOx, and particulate emission. There is an increasing awareness in the public eye of the potential impact of particulates on health. This includes a higher risk of cancer, asthma and a potential contribution to neurodegenerative disorders (e.g., Alzheimer's disease). In the UK, particulate matter (PM) from combustion processes is a significant contributor to poor air quality in urban areas; it has been reported that more than 25,000 deaths per year could be attributed to long-term exposure to anthropogenic particulate air pollution. As reported by DEFRA, poor air quality is the largest environmental risk to public health in the UK, contributing to an estimated £2.7 billion per year in lost productivity. Air pollution also results in damage to the natural environment, contributing to the acidification of soil and watercourses. An obvious solution might be to move towards the replacement of vehicles with electric, however, this technology is limited by range, recharge times and the cost of the battery - for which there is currently not the sufficient global infrastructure to directly replace vehicles powered by internal combustion engine powered. Another complementary solution is to find alternative fuels that are tailored to reduce destructive emissions such as NOx and particulates. This has the advantage that it could be rapidly deployed due to the overlap with existing fuel station infrastructure.The main aim of the proposed research is to provide a fundamental understanding of the combustion performance and emissions characteristics of key biofuels. This is vital knowledge to aid the development of next-generation low carbon technologies. The key objectives are: (1) to provide high-quality experimental data from a study of spray flame behaviour and emissions using advanced optical diagnostic techniques such as laser-induced breakdown spectroscopy and laser-induced fluorescence, (2) to develop new combustion chemical kinetic models, based on COSILAB (Combustion Simulation Laboratory software), predicting soot and NOx emissions and (3) to establish collaborations with industrial and academic partners to investigate power generation and transport applications for next-generation biofuels. In the proposed research, the targeted biofuels are: (1) ethanol, (2) iso-pentanol, (3) dimethyl ether (DME) and (4) combined fuels - ethanol, iso-pentanol, DME and biomethane. These key fuels are potentially next-generation biofuels. The production paths of these fuels are either well established or achievable. Ethanol and DME have already shown evidence of reduced emissions from engine tests. The understanding of combustion chemistry is essential to enable the delivery of a low NOx and soot emission combustion system. How the local chemistry is influenced by various turbulent flow conditions will be examined in detail.

在世界范围内，能源转换目前主要以化石燃料的燃烧为主，发电和运输是主要的能源消耗者，对大气中二氧化碳、氮氧化物和颗粒物的排放产生了重大影响，公众越来越意识到其潜在影响。颗粒物对健康的影响包括增加患癌症、哮喘的风险以及导致神经退行性疾病（例如阿尔茨海默病）的风险。在英国，燃烧过程中产生的颗粒物 (PM) 是导致空气质量不佳的一个重要因素。据 DEFRA 报告，每年有超过 25,000 人因长期接触人为颗粒物空气污染而死亡，空气质量不佳是英国公共卫生面临的最大环境风险。据估计，每年造成 27 亿英镑的生产力损失。空气污染还会对自然环境造成损害，导致土壤和水道酸化。一个明显的解决方案可能是用电动汽车替代汽车，但这项技术并不可行。是有限的续航里程、充电时间和电池成本 - 目前还没有全球基础设施来直接替代由内燃机驱动的车辆。另一个补充解决方案是寻找足够的替代燃料，以减少破坏性排放，例如。氮氧化物和颗粒物的优点是，由于与现有燃料站基础设施重叠，因此可以快速部署。本次研究的主要目的是提供对关键生物燃料的燃烧性能和排放特性的基本了解。帮助下一代低技术发展的重要知识碳技术的主要目标是：(1) 使用先进的光学诊断技术（例如激光诱导击穿光谱和激光诱导荧光）研究喷雾火焰行为和排放，提供高质量的实验数据，(2) 开发碳技术。新的燃烧化学动力学模型，基于 COSILAB（燃烧模拟实验室软件），预测烟灰和氮氧化物排放；(3) 与工业和学术伙伴建立合作，研究下一代生物燃料的发电和运输应用。 , 目标生物燃料包括：(1) 乙醇、(2) 异戊醇、(3) 二甲醚 (DME) 和 (4) 组合燃料 - 乙醇、异戊醇、DME 和生物甲烷。这些关键燃料有可能成为下一代生物燃料。这些燃料的生产路径已经成熟或可以实现，证据表明发动机测试可以减少排放。了解燃烧化学对于实现低排放至关重要。氮氧化物和烟尘排放燃烧系统将详细研究各种湍流条件如何影响局部化学。