Experimental Study on Self-Ignition of Hydrogen Injection into High Temperature Supersonic Airstream
高温超音速气流喷氢自燃实验研究
基本信息
- 批准号:08651087
- 负责人:
- 金额:$ 0.96万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:1996
- 资助国家:日本
- 起止时间:1996 至 1997
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Supersonic cmbustion of hydrogen gas, which was injected transversely from a circular hole flush to the wall of a high temperature/high speed wind tunnel (stagnation temperature 1500K max., Mach number 1.8), has been investigated. The experimental study consists of combustion tests due to (1) hydrogen injection with elevated temperature (2) chemical radicals injection using a plasma torch.The effect of elevating injectant temperature up to 950K by using a heater system has been recognized upon the near-injector combustion in the airstream of 1400K.The bulk flame downstream, homever, was not much affected by this injectant temperature, but found to be rather sensitive to the main airflow temperature. The flame formed inside the test section showed a tendency of strong interaction with the shock waves, which enhanced the combustion at the corresponding interaction point.The plasma torch employed Argon as the carrier gas and Oxygen as the secondary additive gas, which operated in the airflow of 1000K.The combustion tests were not successful for the torch to be located upstream of the fuel injector, but realized the ignition at the temperature of 800K,that is, far below the usual self-ignition temperature of 1300K.It has been also shown that the additive Oxygen radicals further lowered the ignition temperature to 600K,which showed a little unstable feature. The bulk flame in this case is also enhanced due to the interaction with the shock waves inside the test sectoon.
在高温/高速风洞(最高驻点温度1500 K,马赫数1.8),已被调查。通过高温喷氢和等离子体炬化学自由基喷入的燃烧试验,发现在1400 K的气流中,喷入温度升高到950 K对近喷燃烧有明显的影响,但对下游火焰的影响不大。但发现其对主气流温度相当敏感。试验段内形成的火焰与冲击波有强烈的相互作用趋势,在相应的相互作用点处燃烧得到加强。等离子体炬采用氩气为载气,氧气为二次添加气体,在1000 K的气流中工作。但在800 K时实现了点火,远低于通常的自燃温度1300 K,同时发现氧自由基的加入使点火温度进一步降低到600 K,表现出一定的不稳定性。在这种情况下,由于与试验段内的冲击波相互作用,整体火焰也得到了增强。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
ITOH Hiroshi其他文献
ITOH Hiroshi的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('ITOH Hiroshi', 18)}}的其他基金
Spiral progression of DNA damage repair, epigenetic alterations and metabolic changes in metabolic kidney diseases
代谢性肾病中 DNA 损伤修复、表观遗传改变和代谢变化的螺旋进展
- 批准号:
20H00535 - 财政年份:2020
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (A)
In toto understanding of organ function by integrated analysis of multicellular networks mediated by intercellular delivery of metabolites
通过对代谢物细胞间传递介导的多细胞网络的综合分析来全面了解器官功能
- 批准号:
17H06270 - 财政年份:2017
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Challenging Research (Pioneering)
Development of novel therapies using neutrophil functions mediated by the autophagy machinery against multi-drug resistant bacterial infections
利用自噬机制介导的中性粒细胞功能开发针对多重耐药细菌感染的新疗法
- 批准号:
26670484 - 财政年份:2014
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Influence of mechanical stress applied to ES/iPS cells on organelle control and cell metabolism/differentiation
ES/iPS 细胞机械应力对细胞器控制和细胞代谢/分化的影响
- 批准号:
24659454 - 财政年份:2012
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Analysis of the novel family of G protein-coupled receptor
G蛋白偶联受体新家族的分析
- 批准号:
21370056 - 财政年份:2009
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Regulation of cell-metabolism by cardiovascular hormones and the comprehensive application to metabolic syndrome.
心血管激素对细胞代谢的调节及其在代谢综合征中的综合应用。
- 批准号:
21390286 - 财政年份:2009
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Transcriptionaland translational regulation of peptide factors for the growth and differentiation of gastrointestinal epithelial cells
肽因子的转录和翻译调节对胃肠道上皮细胞生长和分化的影响
- 批准号:
20590382 - 财政年份:2008
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Cardiovascular-endocrinological approach for elucidation of the molecular mechanism of "Metabo-aging"
心血管内分泌学方法阐明“代谢衰老”的分子机制
- 批准号:
19390255 - 财政年份:2007
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Pathophysiological mechanisms of peptides involved in the proliferation and differentiation of gastrointestinal mucosal epithelial cells.
肽参与胃肠粘膜上皮细胞增殖和分化的病理生理机制。
- 批准号:
17590354 - 财政年份:2005
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Identification and analysis of new molecules that regulate G protein signaling
调节 G 蛋白信号传导的新分子的鉴定和分析
- 批准号:
17079006 - 财政年份:2005
- 资助金额:
$ 0.96万 - 项目类别:
Grant-in-Aid for Scientific Research on Priority Areas