爆燃率 的英文怎麼說
中文拼音 [bàoránlǜ]
爆燃率
英文
probability of detonation-
Moreover, the system of powdered coal conveying with primary air is the most important tache, whether the distribution of primary air is even or not directly relates to whether the distribution of powdered coal is even or not in all firing implement and nozzles, sequentially directly relates to whether it is hard to take fire, whether the fire is stable, whether there is coking and how about the heat efficiency of the boiler, hi addition, if there is jamming and deflagrate in the system of powdered coal conveying with primary air, severe safety accident can be resulted
良好的煤粉配風是建立合理的爐內空氣動力工況和穩定燃燒的必要條件。而其中一次熱風送粉系統又是最重要的一個環節，一次風配風是否均勻直接關繫到煤粉在各燃燒器和各噴嘴中的分佈是否均勻，從而直接關繫到著火是否困難、火焰是否穩定、局部是否結焦以及鍋爐的熱效率高低。若一次風送粉系統發生堵塞和煤粉爆燃則可能引發嚴重的安全事故。In this paper, firstly the macro parameter of the series connection app was comprehensively analyzed, among which the trajectory location of the bullet emission and the terminal velocity of the bullet were mainly analyzed, and the feasibility of the series connection app to cope with explosive reactive armor was demonstrated. and then the macro design about the head of the series connection app was made, among which a particular analyse about the bullet " s launching process was made, from which we concluded the relation between the thickness of the airproof loop and the velocity of the bullet detached from the carrier and the relation between the length of the bullet and the velocity of the bullet detached from the carrier and the relation between the length of the bullet and the burning rate of the powder and the relation between the length of the bullet and the maximum pressure of the emission hole and the relation between the length of the bullet and the emitting time of the bullet, and the reasonable str ucture of the head of the carrier and bullet were designed, then the intensity of the head of the carrier was checked out using of the software of ansys
本文首先對子母式穿甲彈總體參量作了全面的計算分析，其中主要分析了子彈射出的彈道位置和必要的子彈著靶速度，論證了子母式穿甲彈對付爆炸式反應裝甲的可行性，然後對子母式穿甲彈彈頭部進行了總體設計，其中主要對子彈的發射過程進行了詳細的分析，得出了母彈彈頭部發射孔內閉鎖環厚度與子彈飛離母彈速度的關系、子彈長度與子彈飛離母彈速度的關系、子彈長度與火藥燃燒率的關系、子彈長度與母彈彈頭部發射孔內最大壓力的關系以及子彈的長度與子彈發射所需時間的關系，設計出了合理的母彈彈頭部結構和子彈的結構，並利用ansys有限元分析軟體對母彈彈頭部的強度進行了校核。It ' s the first time to explore the combustion characteristics of lpg / diesel mixing fuel engine, and find that, with the change of load and rotation, the changing trend of the ignition delay period of e10 mixing fuel is almost as identical as that of the diesel, but that of e30 mixing fuel is very different. comparing with diesel, the combustion of e10 is improved slightly, but that of e30 greatly changes ; the maximum eruptive pressure decreases ; the maximum pressure increase rate decreases ; the highest releasing heat rate increases ; the highest combustion temperature falls ; the ignition delay period extends
結果表明: e10混合燃料與柴油的著火滯燃期隨負荷和轉速的變化趨勢基本一致; e30混合燃料與柴油則有所不同; eio混合燃料發動機的燃燒與純柴油相比，略有改善; e30混合燃料的燃燒特性發生明顯的變化，最高爆發壓力下降，最大壓力升高率減小，最大燃燒放熱率增大，最高燃燒溫度下降，滯燃期延長。A new calculation method for optimizing diesel engine performance, called nonlinear regression - mess method, is put forward. in this paper, 25 groups of simulated values are calculated from the diesel engine working model, specific fuel consumption, peak pressure, rate of pressure rise, nox and peak temperature are fitted into explicit function about compression ratio and fuel injection advance angle
本文利用柴油機工作過程模型，得出25組模擬計算數據，利用非線性回歸將油耗、最大爆發壓力、壓力升高率、 no _ x濃度及最高燃燒溫度擬合成壓縮比和噴油提前角的顯函數，並用網格法進行優化，用c語言編制了優化計算程序，得出最佳的壓縮比和噴油提前角，使其優化匹配。Abstract : during the heating of scrap with carbon or hydrocarbon contented substances in some process, it will bring problems like explosion of carbon monoxide, fume and smell from oil volatilization, etc. ， if incomplete combustion occurs. through laboratory experiments, the time related variation of gas contents and post combustion ratio of fume during the heating of oil - bearing scrap are studied. the results show that the restrictive chain of reaction procedure is the thermolysis of oil ; that temperature and ( co ) / ( co2 ) ratio influence transformation ratio and post - combustion ratio under lower temperature ; that 900 is the temperature above which the complete reaction can be ensured at all ( co ) / ( co2 ) ratios
文摘:在某些廢鋼熔煉過程中，當爐料中含碳及碳氫物質且燃燒不充分時，會帶來煙氣中一氧化碳的燃爆、油污揮發時造成的煙霧、臭味等問題.通過實驗室裝置研究含油廢鋼在加熱過程中煙氣成分隨時間的改變以及二次燃燒率的變化，試驗結果表明，反應過程的限制性環節是油分的熱分解；在較低的溫度下（ co ） / （ co2 ）比例影響轉化率和二次燃燒率；而在任意比例下保證充分反應的溫度為900以上Abstract : the power plant is the key unit of firefighting which is involved in inflammable and explosive materials, high accident rate and great losses
文摘:發電廠到處都是易燃易爆物品，火災事故發生率高，損失大，是防火重點單位。The security that the boiler burns depends on the stability of flame mainly, in order to avoid the emergence of the explosive incident of the boiler, the coal powder must be burnt steadily in the stove, if it is unstable to burn, temperature field is not even in the stove, light to cause thermal efficiency of boiler reduce greatly, cause to waste, heavy and easy to is it produce stove serious consequence to present
鍋爐燃燒的安全性主要取決於火焰的穩定性，為了避免鍋爐爆炸事件的發生，爐內煤粉必須穩定燃燒，如果燃燒不穩定，爐內溫度場不均勻，輕則導致鍋爐的熱效率極大地降低，造成浪費，重則容易出現爆爐等嚴重後果。Moreover, it has been pointed out that the hydrogen engine used in ? cylinder injection with high pressure can increase volumetric efficiency and compression ratio, - therefore, the performance indexes in this engine, such as output power, thermal efficiency, range of thickness of mixture with normal operation and nox emission, can be improved, and it is possible for the engine to realize rapid combustion of thin mixture, so abnormal combustion, such as backfire, pre ? ignition, can be controlled effectively
指出了採用內部混合氣形成方式且高壓噴射的氫發動機，有利於提高充氣效率和壓縮比，從而改善發動機的動力性和經濟性；有利於擴展發動機正常工作的濃度范圍；並且有利於實現稀薄混合氣快速燃燒，從而可以有效地抑制早燃、回火及爆燃等異常燃燒和no _ x排放量。試驗指出了發動機的點火正時、噴射正時及噴氫量對發動機的性能、異常燃燒、 no _ x排放量有很大影響。Investigation results show that dme engine has shorter ignition delay, lower peak pressure, lower maximum rate of pressure rise
研究表明:二甲醚發動機具有短的滯燃期，較低的最高爆發壓力和最大壓力升高率。Based on the variables of inlet length, compression ratio, inlet opening phase and the exhaust closing phase, multi - objective optimization was conducted for power, torque, combustion noise and fuel consumption indicators with constraint conditions of fuel consumption rate and the maximum breakout pressure
以進氣道長度、壓縮比、進氣開啟相位、排氣關閉相位為可變因素；以比油耗、最高爆發壓力為約束條件，針對滿足功率、扭矩、燃燒噪聲和油耗指標進行多目標優化設計。Otherwise it will decrease the flame burning efficiency, even cause the flame blowout or boiler explosion under unsteady burning conditions. so it is necessary to monitor the flame burning states
燃燒不穩定，不僅會降低鍋爐熱效率，產生污染物和噪聲，而且在極端情況下會引起鍋爐爐膛滅火，如處理不當就會誘發爐膛爆燃，造成事故。In order to investigate the influence of characteristics parameters on detonation wave in a two - phase pulse detonation engine model. the peak detonation pressures and average velocities of two - phase pulsed detonation wave produced by pde model using gasoline as fuel and air as oxidizer under various ignition frequencies and various mixture ratios are measured systematically, and the relations influencing them are analyzed
為了探索氣-液兩相脈沖爆震發動機模型內特徵參數對產生爆震波的影響規律，系統地測試了以汽油為燃料、以空氣為氧化劑的氣-液兩相脈沖爆震發動機模型在不同點火頻率及不同余氣系數下爆震波的峰值壓力以及平均爆震波速，並對其變化進行了分析。The finite - rate combustion kinetic model for standing oblique detonation waves is established. the tvd finite volume scheme is also presented. the combustion flow fields of standing oblique detonation waves are numerically simulated using 7 species and 8 reaction steps hydrogen combustion model, 10 species and 12 reaction steps methane combustion model respectively
建立了適合多組分含有限速率化學反應流體流動的數學模型，構造了多組分化學反應流體流動守恆方程的tvd有限體積數值格式，採用7組分8反應的氫燃燒， 10組分12反應甲烷燃燒的化學反應機理，數值模擬了駐定斜爆轟波燃燒流場，取得了較好的結果。Electrical apparatus for the detection and measurement of flammable gases - performance requirements for group ii apparatus indicating a volume fraction up to 100 % lower explosive limit
可燃性氣體的檢測和測量用電氣裝置.指示低爆炸極限達到體積分率為100 %時ii組裝置的性能要求Test method for explosion pressure and rate of pressure rise of combustible dusts
可燃粉塵的爆炸壓力和壓力上升速率的試驗方法Explosives for civil uses - propellants and rocket propellants - part 4 : determination of burning rate under ambient conditions
民用爆炸物.推進劑和火箭推進劑.第4部分:大氣條件下燃燒速率的測定With the development of city construction, the population is increasing rapidly, skyscrapers and underground buildings are everywhere, flammable materials are used more widely, fires are more likely to happen, thus fire - fighting is very important to national asset and people lives
隨著城市建設的發展，人口密度增大，高層、地下建築增多，易燃易爆材料增多，城市發生火災的概率就越來越高，所以消防直接關繫到國家財產和人民生命安全，一旦意外發生火災，得不到即時營救，將會造成無法估量的損失。分享友人