Query：
学者姓名：王金贵
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
To mitigate the damage caused by methane explosions, this paper conducts experiments on methane explosion suppression by CO2 and air (for comparison)-driven NaHCO3 powder using a 1 m3 spherical explosion test system. The results indicate that the explosion suppression effect was gradually enhanced with the increase of NaHCO3 powder concentration. Driven by air, as the concentration of NaHCO3 powder increases, the flame becomes darker and the propagation speed slows down. After adding 700 g/m3 NaHCO3 powder, methane cannot be ignited. The significant concentration range for explosion suppression efficiency is between 200 g/m3 and 500 g/m3. Driven by CO2, the flame evolves more slowly, the flame shape is more irregular, and the flame brightness is lower. Compared with air propulsion, the required NaHCO3 powder for complete explosion suppression is reduced by 100 g/m3, and the required NaHCO3 for related explosion suppression effects is reduced by 100 g/m3. The explosion suppression effect of CO2 driven NaHCO3 powder is superior to the sum of the suppression effects of high-pressure CO2 gas injection and air driven NaHCO3 powder. The explosion suppression effect of CO2 enables NaHCO3 powder to fully decompose and exert the best inhibitory effect; The CO2 generated by the decomposition of NaHCO3 can further enhance the suppression effect of CO2, and the two can thus produce a synergistic inhibitory effect.
Keyword ：
CO2 CO2 Explosion pressure Explosion pressure Explosion suppression mechanism Explosion suppression mechanism Methane explosion suppression Methane explosion suppression NaHCO3 powder NaHCO3 powder
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jingui , Chen, Jianjun , Zhu, Hangqin et al. Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder [J]. | FUEL , 2025 , 386 . |
| MLA | Wang, Jingui et al. "Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder" . | FUEL 386 (2025) . |
| APA | Wang, Jingui , Chen, Jianjun , Zhu, Hangqin , Xue, Shaojun , Zhang, Su . Experimental study on methane explosion suppression by CO2-driven NaHCO3 powder . | FUEL , 2025 , 386 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
为了氢气‑甲烷混合燃料的安全使用，利用内径和长度皆为300 mm的圆柱形密闭容器进行爆炸实验，研究了掺氢比（XH2=0~100%）和当量比（Φ=0.6~1.4）对火焰演化和爆炸压力特性的影响，并采用CHEMKIN软件分析了氢气‑甲烷‑空气预混气体的层流燃烧速度及其敏感性。结果表明，在当量比（Φ）不变的情况下，随着掺氢比（XH2）的增加，最大爆炸压力（pmax）、最大压力上升速率（（dp/dt）max）、爆炸指数（KG）以及层流燃烧速度增大，到达最大压力和最大压力上升速率的时间（tA和tB）逐渐缩短。点火后，火焰表面由最初的较为光滑，逐步形成蜂窝状的火焰胞格结构。在相同当量比（Φ）下，随着掺氢比（XH2）的增加，从点火到爆炸结束的时间大幅缩短，且在同一时刻，火焰半径增大，火焰表面皱褶增多。反应敏感性计算结果表明，基元反应H+O2⇌O+OH（R38）和H+CH3（+M）⇌CH4（+M）（R52）对层流燃烧速度的影响最大；关键自由基（H·、O·、OH·）的最大摩尔分数与层流燃烧速度正相关，且掺氢比（XH2）的增加，使得关键自由基的最大摩尔分数显著增大；基元反应R38和R84是影响关键自由基生成速率（ROP）的最主要反应。
Keyword ：
化学动力学分析 化学动力学分析 层流燃烧速度 层流燃烧速度 掺氢甲烷 掺氢甲烷 火焰 火焰 爆炸压力 爆炸压力
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 梅亮 , 郭进 , 黄时凯 et al. 密闭容器内氢气‑甲烷‑空气的爆炸特性 [J]. | 含能材料 , 2025 : 1-12 . |
| MLA | 梅亮 et al. "密闭容器内氢气‑甲烷‑空气的爆炸特性" . | 含能材料 (2025) : 1-12 . |
| APA | 梅亮 , 郭进 , 黄时凯 , 王金贵 , 高毅 . 密闭容器内氢气‑甲烷‑空气的爆炸特性 . | 含能材料 , 2025 , 1-12 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The explosive properties of methane-ethane mixtures with different concentrations and ethane proportions (phi value) were studied in a 1 m(3) spherical vessel, along with the inhibitory effects of N-2 and CO2. The results indicate that when the concentration of the total gas mixture was 10%, P-max and (dp/dt)(max) first increased and then decreased with the increase of phi. In contrast, for total gas mixture concentrations of 8% and 12%, P-max and (dp/dt)(max) showed a single change. Under the test conditions of this experiment, P-max reached its maximum value when the total gas mixture concentration was 10% and phi = 0.1. The explosion suppression of gas mixtures showed that both N-2 and CO2 could significantly reduce P-max and (dp/dt)(max) when their volume fractions increased to 9%. While the continued addition of N-2 and CO2 did not significantly reduce P-max and (dp/dt)(max), it further delayed the arrival time of the peak, with a greater magnitude of delay for CO2. Regarding the flame propagation process, the same volume fraction of CO2 can reduce the flame propagation speed more effectively, and the bottom of the flame is more significantly affected by buoyancy instability.
Keyword ：
explosion pressure explosion pressure flame propagation flame propagation gas mixtures gas mixtures inert inhibitory gas inert inhibitory gas
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, Jingui , Hu, Xingwang , Hu, Qiangqiang et al. Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations [J]. | PROCESS SAFETY PROGRESS , 2025 . |
| MLA | Wang, Jingui et al. "Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations" . | PROCESS SAFETY PROGRESS (2025) . |
| APA | Wang, Jingui , Hu, Xingwang , Hu, Qiangqiang , Liang, Zhixing , Zhang, Su . Experimental study on the effects of N2 and CO2 inerting on methane-ethane-air deflagrations . | PROCESS SAFETY PROGRESS , 2025 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The explosion of premixed gas in a closed vessel is very complicated. In order to study the effect of ignition position on the explosion characteristics of methane/air premixed gas, the central ignition explosion experiment with 10 vol. % methane concentration in a 1 m3 closed spherical explosive vessel was carried out under an initial pressure of 101 kPa and an initial temperature of 300 K. Besides, the effect of different ignition positions(center ignition, 0. 5R ignition, R ignition) on the explosion characteristics of methane/air premix in the vessel was studied by LES turbulence model and Zimont combustion model of the Fluent numerical simulation software. It includes flame structure evolution, explosion temperature, explosion pressure and explosion pressure rise rate. The results show that the flame expands around until the wall and profile of the vessel gradually change from the initial“left thin and right thick”to the“left raised sharp angle”and gradually stretch from the“circular arc”to the“sharp shape”to the left when the flame is ignited at the center, 0. 5R and R. And then, there is a temperature gradient in the temperature field at different ignition positions. The heating law is continuously released from the energy of the ignition center, and the temperature continuously accumulates and rises. Furthermore, the variation trend of explosion pressure under different ignition positions is basically the same. The final maximum explosion pressure is stable at about 766 kPa due to the wall insulation. Finally, the rise rate of the maximum explosion pressure in the center ignition is the highest, which is 94. 5% and 141. 8% higher than that in 0. 5R ignition and R ignition, respectively. © 2024 BLASTING Magazine Editorial Office, Wuhan University of Technology. All rights reserved.
Keyword ：
flame front flame front hermetically sealed spherical vessel hermetically sealed spherical vessel ignition position ignition position large eddy simulation large eddy simulation methane/air premixed gas methane/air premixed gas
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Wang, J.-G. , Liang, Z.-X. , Hu, Q.-Q. et al. Numerical Simulation of the Effect of Ignition Position on Methane/Air Premix Explosion Characteristics; [点火位置对甲烷 /空气预混爆炸特性影响的数值模拟研究] [J]. | Blasting , 2024 , 41 (1) : 186-195 . |
| MLA | Wang, J.-G. et al. "Numerical Simulation of the Effect of Ignition Position on Methane/Air Premix Explosion Characteristics; [点火位置对甲烷 /空气预混爆炸特性影响的数值模拟研究]" . | Blasting 41 . 1 (2024) : 186-195 . |
| APA | Wang, J.-G. , Liang, Z.-X. , Hu, Q.-Q. , Zhu, H.-Q. , Hu, C. , Wei, L.-H. . Numerical Simulation of the Effect of Ignition Position on Methane/Air Premix Explosion Characteristics; [点火位置对甲烷 /空气预混爆炸特性影响的数值模拟研究] . | Blasting , 2024 , 41 (1) , 186-195 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
以牡蛎壳粉部分替换传统水泥基材料,在实现牡蛎壳废物利用的同时可有效降低建材成本.利用牡蛎壳粉作为普通硅酸盐水泥掺合料,探讨其不同掺杂量及不同粉磨方式对水泥胶砂强度及安定性的影响,确定了牡蛎壳粉的适宜添加量,并用XRD、SEM及EDS等测试分析手段表征不同掺量下胶凝试块的结构及性能变化.实验结果表明,牡蛎壳的球磨方式对水泥胶砂强度有明显影响,掺加湿法球磨牡蛎壳粉的胶凝材料的强度高于相应的掺加干法球磨的样品.牡蛎壳粉的掺加量为5%时,试样的抗压强度和抗折强度分别达到49.2 MPa和7.55 MPa,显著高于未掺加的空白样品.通过安定性实验制得的试样经过预养、沸煮之后,表面均光滑、无裂纹,体积无明显膨胀或收缩,表明掺杂牡蛎壳粉的胶凝材料安定性良好.微观结构表征结果显示牡蛎壳粉在水泥胶凝材料中独立存在,主要起惰性填充作用.利用牡蛎壳微粉部分替代水泥基材料是可行的,既可以改善水泥基材料综合性能,又能节约材料成本、减少环境污染,具有良好的应用前景.
Keyword ：
安定性 安定性 抗压强度 抗压强度 抗折强度 抗折强度 牡蛎壳粉 牡蛎壳粉
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 钟彬扬 , 梁玉兰 , 陈志杰 et al. 牡蛎壳微粉改性水泥基复合材料性能及微观结构研究 [J]. | 无机盐工业 , 2024 , 56 (10) : 135-140 . |
| MLA | 钟彬扬 et al. "牡蛎壳微粉改性水泥基复合材料性能及微观结构研究" . | 无机盐工业 56 . 10 (2024) : 135-140 . |
| APA | 钟彬扬 , 梁玉兰 , 陈志杰 , 廖启华 , 王金贵 . 牡蛎壳微粉改性水泥基复合材料性能及微观结构研究 . | 无机盐工业 , 2024 , 56 (10) , 135-140 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
密闭容器内预混气体爆炸非常复杂，为研究点火位置对甲烷/空气预混气体爆炸特性的影响，在初始压力为101 kPa和初始温度为300 K的环境下，开展1 m~3密闭球形爆炸容器中10 vol%甲烷浓度的中心点火爆炸实验，并使用Fluent数值模拟软件，采用LES湍流模型和Zimont燃烧模型，研究不同点火位置(中心点火、0.5R点火、R点火)对容器内甲烷/空气预混气体爆炸特性的影响，包括火焰结构演化、爆炸温度、爆炸压力、爆炸压力上升速率。结果表明：(1)在中心、0.5R和R处点火时，火焰分别向四周膨胀直至容器壁面、轮廓由最初的“左薄右厚”逐渐转变为“左侧凸起的尖角”和在壁面处从“圆弧形”逐渐拉伸转变成“尖形”向左侧发展；(2)不同点火位置下温度场存在温度梯度，升温规律均由点火中心能量持续向外释放，温度不断积聚升高；(3)不同点火位置下爆炸压力变化趋势基本一致，由于壁面绝热，最终最大爆炸压力均稳定在766 kPa左右；(4)中心点火时最大爆炸压力上升速率最大，较0.5R点火和R处点火分别增大了94.5%和141.8%。
Keyword ：
大涡模拟 大涡模拟 密闭球形容器 密闭球形容器 火焰前锋 火焰前锋 点火位置 点火位置 甲烷/空气预混气体 甲烷/空气预混气体
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王金贵 , 梁志星 , 胡强强 et al. 点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究 [J]. | 爆破 , 2024 , 41 (01) : 186-195 . |
| MLA | 王金贵 et al. "点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究" . | 爆破 41 . 01 (2024) : 186-195 . |
| APA | 王金贵 , 梁志星 , 胡强强 , 朱杭钦 , 胡超 , 魏林慧 . 点火位置对甲烷/空气预混爆炸特性影响的数值模拟研究 . | 爆破 , 2024 , 41 (01) , 186-195 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
A crucial industry for improving society's sustainable development is the power sector. To address issues with the ineffectiveness of electric power emergency response during emergencies and the unclear division of duty among emergency subjects. A prefecture-level city power supply company to respond to the "In-Fa" typhoon, for example, to build a "1 + N" two-level emergency rapid response unit. Furthermore, it is proposed from the emergency response, emergency coordination, emergency material reserves, etc., to build a "full-chain" type of power emergency quick reaction system. Case studies have revealed that the quick response system's emergency combat capability, catastrophe preventive and mitigation capability, and emergency security capability have all improved. The construction of a "full-chain" type of power emergency rapid response system specialized and standardized the power emergency response system and provided a reference basis for the power industry's emergency response.
Keyword ：
Electric power system Electric power system Emergency quick response Emergency quick response Internal and external coordination Internal and external coordination Multi -linkage Multi -linkage Standardization Standardization
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Su , Liu, Xiaolu , Wang, Jingui . Research on the construction of a "full-chain" rapid response system for power emergencies [J]. | HELIYON , 2024 , 10 (4) . |
| MLA | Zhang, Su et al. "Research on the construction of a "full-chain" rapid response system for power emergencies" . | HELIYON 10 . 4 (2024) . |
| APA | Zhang, Su , Liu, Xiaolu , Wang, Jingui . Research on the construction of a "full-chain" rapid response system for power emergencies . | HELIYON , 2024 , 10 (4) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
燃烧学是安全工程专业的一门理论性强、难度大的专业基础课程，其中可燃气体燃烧及火焰传播相关知识点的教学存在理论抽象、不够直观等问题。作者将理论学习、实验研究、数值模拟有机结合，基于CFD方法设计了数值模拟仿真实验系统，并以球形容器内甲烷-空气预混燃烧为例，介绍了该系统在燃烧学课程教学中的应用。实践表明，虚拟仿真实验教学能够有效增强学生对相关理论知识的理解，充分调动学生的学习积极性，提升课程的高阶性、创新性和挑战度。
Keyword ：
实验教学 实验教学 数值模拟 数值模拟 燃烧学 燃烧学 理论教学 理论教学 预混燃烧 预混燃烧
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 张苏 , 魏林慧 , 王金贵 . 甲烷-空气预混燃烧数值模拟仿真实验设计及教学应用 [J]. | 化工高等教育 , 2023 , 40 (03) : 113-119 . |
| MLA | 张苏 et al. "甲烷-空气预混燃烧数值模拟仿真实验设计及教学应用" . | 化工高等教育 40 . 03 (2023) : 113-119 . |
| APA | 张苏 , 魏林慧 , 王金贵 . 甲烷-空气预混燃烧数值模拟仿真实验设计及教学应用 . | 化工高等教育 , 2023 , 40 (03) , 113-119 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
为了提升高校实验室的应急反应能力，文章提出在高校实验室群中建立应急快速反应力量，整合原有应急处置队伍，构建基于协同机制的“1+N”两级应急快速反应体系，并进一步提出应急资源的协同机制、响应流程以及高校落实实验室安全保障的措施。研究成果对高校实验室的应急快速反应体系建设具有参考意义。
Keyword ：
协同机制 协同机制 快速反应 快速反应 高校安全 高校安全
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王金贵 , 冯泓 . 基于协同机制的实验室应急快速反应体系建设 [J]. | 化工高等教育 , 2023 , 40 (03) : 87-91 . |
| MLA | 王金贵 et al. "基于协同机制的实验室应急快速反应体系建设" . | 化工高等教育 40 . 03 (2023) : 87-91 . |
| APA | 王金贵 , 冯泓 . 基于协同机制的实验室应急快速反应体系建设 . | 化工高等教育 , 2023 , 40 (03) , 87-91 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
基于自主搭建的1m3球形爆炸实验系统,通过分析火焰结构与传播过程来探究不同体积分数下的甲烷和氮气对火焰不稳定性的影响及其机制.研究结果表明,甲烷-空气预混气体火焰发展过程与甲烷体积分数直接相关,当甲烷体积分数接近爆炸极限,火焰明显上浮,浮力不稳定性是火焰失稳的主要因素.当甲烷体积分数在 7%～13%范围内时,火焰总体呈规则球形,在热-质扩散因素和流体力学因素相互促进或制约作用下,火焰总体不稳定性呈现先迅速增强后缓慢减弱的趋势.通过改变氮气添加比,发现流体力学不稳定性对氮气添加比的变化更为敏感,当氮气添加比(体积分数)大于 8%时,在流体力学不稳定性因素的主导影响下火焰稳定性迅速增强.
Keyword ：
惰化 惰化 火焰不稳定性 火焰不稳定性 甲烷爆炸 甲烷爆炸 马克斯坦长度 马克斯坦长度
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | 王金贵 , 何伟杰 , 张成名 et al. N2对甲烷-空气预混气体爆炸火焰传播稳定性的影响 [J]. | 福州大学学报（自然科学版） , 2023 , 51 (4) : 582-588 . |
| MLA | 王金贵 et al. "N2对甲烷-空气预混气体爆炸火焰传播稳定性的影响" . | 福州大学学报（自然科学版） 51 . 4 (2023) : 582-588 . |
| APA | 王金贵 , 何伟杰 , 张成名 , 张苏 . N2对甲烷-空气预混气体爆炸火焰传播稳定性的影响 . | 福州大学学报（自然科学版） , 2023 , 51 (4) , 582-588 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
