預點火 的英文怎麼說
中文拼音 [yùdiǎnhuǒ]
預點火
英文
pre-ignition-
Considering that no phase transition of enstatite with perovslite structure were found during these static high pressure experiments, the consistence of the bulk modulus also supports that the high pressure phase of perovskite structure of enstatite is stability between 50 - 140gpa
考慮到靜高壓下的數據是在實驗中未發現頑火輝石高壓相有相變的情況下得到的。因此,動高壓與靜高壓實驗數據的一致性支持了在80 ? 140gpa壓力內預火輝石的高壓相保持穩定的觀點。From simulations and data of fire site, most air preheater fire often appear when boiler is started in cool state and standby which fuels of insufficient combustion coagulate and congregate on the parts of air preheater. when the temperature of smoke inpouring air preheater increases, aggregate fuels and sediments will combust in stated temperature conditions. it is called the second combustion of air preheater
這些起火起因於燃料油的不充分燃燒,其結果是未充分燃燒的燃料油凝結和聚集在空氣預熱器的部件上,當進入空氣預器的煙氣溫度增高時,沉積的燃料油被烘烤,當達到一定溫度條件時,則可點燃這些燃料油污沉積物,造成火災發生,這通常被稱為空氣預熱器的二次燃燒。Determination of the tendency of lubricants to promote preignition in two - stroke - cycle gasoline engines, test method for
潤滑劑促使兩沖程汽油發動機預點火可能性的測定方法[ kjv ] for tophet is ordained of old ; yea, for the king it is prepared ; he hath made it deep and large : the pile thereof is fire and much wood ; the breath of the lord, like a stream of brimstone, doth kindle it
因為陀斐特那燒著的火早已安排好了,是為君王預備的,又深又寬;其中所堆的,是火和許多的柴;耶和華的氣像一股硫磺火,把它燃點起來。In the paper, authors summarize the characteristics of fire cases in cotton warehouses, analyze fire traits and hazard in cotton handling and storage, and provide countermeasures of precaution against fire
摘要通過總結棉花倉庫火災案例的特點,分析棉花運輸裝卸儲存中的火災特點和火災危險性,從而提出預防火災的對策。This paper aims at the characteristics of thermal response of lpg vesse1 under high temperatue, conjoining the project of " study on transportation safety early - wdring system of lpg dangerous goods " supported by transportation departinen of china and the project of " mechanism study and numerical simulation of the explosion of lpg vessel " supported by science foundation of hubei province. the interdisciplinary research has been done among temperature field distribution of lpg vessel under flame surroundings, intensity calculation, crack propagation predication and mechanism of explosive accident, etc. three parts are analyzed and discussed
本文針對高溫環境下液化氣壓力容器的熱響應特性問題,結合交通部重點科技項目「液化氣體類危險品運輸安全預警系統的研究」和湖北省自然科學基金項目「液化氣容器爆炸機理研究及數值模擬」 ,對在火焰包圍下的液化氣壓力容器的溫度場分佈、強度計算、裂紋擴展預測以及爆炸事故機理等方面開展了多學科的交叉研究。By study dabaoshan deposit on minerogenetic and geological background, mineral constituent, rare - earth element, isotope and typomorphic feature of sulpurization mineral, finally, we made a conclusion that dabaoshan deposit resulted from the volcanic deposition which type is laterebuilt and magma hydrothermal superimposed. we found the upside of dabaoshan deposit have been denuded or oxidized, bassically, it have reached the lowest part of the deposit
通過對大寶山礦床的成礦地質背景、礦物成分、稀土元素組成、同位素以及黃鐵礦、閃鋅礦、方鉛礦的標型特徵進行研究,確定了大寶山礦床的成因為火山沉積,經後期巖漿熱液疊加型礦床,對礦床的遠景進行了預測,提出大寶山礦床的上部礦體已被剝蝕或被氧化,基本上已經到礦體的深部的觀點。Of the distance between the above location where the mounds of red fire ants were found and the hong kong wetland park area ; whether it has assessed the chance of the wetland park being infested with red fire ants and has taken measures to prevent their infestation ; and
上述發現紅火蟻蟻丘的地點與香港濕地公園范圍的距離有否評估紅火蟻入侵濕地公園的機會,以及有否採取措施預防紅火蟻入侵及On the base of engine tests, some conclusions, which are directive significance to the design of a prechamber spark ignited lpg engine, are drawn
進行了一系列發動機臺架實驗,得到實驗數據,並進行比較分析,得出了一些對預燃室式火花點火液化石油氣發動機設計具有指導意義的結論。A new method is put forward on thermodynamics combustion model to make imitating research on egr - a software is made to calculate the amount of no from the gasoline by connecting with the practical condition in our country, starting with thermodynamics and experiment at the same time make a system research to influence by the exhaust gas returning system on the gasoline, such as exhaust gas, fuel economy, and power, finally a new thought is afforded for optimizing all the egr parameter in chapter 6
第五章採用上述診斷和預測模型對bj492q發動機進行了模擬計算和實驗研究,並探討了點火提前角、殘余廢氣系數、燃空比、壓縮比和火花塞位置對發動機性能的影響。第六章提出了基於熱力學燃燒模型對egr進行數值模擬的方法,系統地研究了車用汽油機加裝egr系統后對排放、油耗、功率的影響,並結合排放標準。提出了egr參數的全局優化的新思路。A 2100 series diesel engine is modified into a spark ignited lpg dedicated engine. to improve power performance, economic performance, and emission performance and to enhance the power of the lpg engine, it is necessary to improve the combustion rate of lpg. it is realized by the application of a new kind of prechamber system
對一臺2100柴油機進行了改造,使其成為火花點火式液化石油氣發動機,因液化石油氣燃燒速度低,為改善其動力性、經濟性、排放性和提高功率,有必要提高液化石油氣的燃燒速度,為此,設計了一種結構簡單、成本低廉的預燃燒系統,大大提高了燃燒速度,排放也得到改善。With the rapid development of computational fluid dynamics and combustion theory, applying the computer to numerically simulate the complicated processes in the plasma ignition is possible. using numerical simulation can estimate the parameters which are not essay to measure and not doing so many experiments can improve its reliability and reduce the cost. so numerical simulation is a new pattern way to study the inner mechanism of the plasma ignition
隨著計算流體力學和燃燒理論的發展及計算機的廣泛應用,用數值模擬等離子點火器內部燃燒系統流動、傳熱、傳質、化學反應等復雜的過程已成為可能。應用數值模擬的方法可以對實驗難以測量的量進行預估,而不需要大量的試驗,應用數值模擬的方法來解決等離子點火器燃燒性能的分析和工程設計,有利於提高工作的可靠性和經濟性。In this article, constituting some the equations which reflect the flow law and building and applying many mathematical models of physical and chemical reactions in the the plasma ignition : applying k - two equations turbulence model to calculate the turbulence parameter supplying simplied reaction systerm model and applying eddy break - up model and p - i thermal radiation model. with these reasonable simplied modles, numerically simulating the flow field in the plasma ignition. during the numerical simulation, applying the body - fitted coordinates for the complex geometry of the computional field ; using the mixing format to disperse the equations ; applying simplec algorithm method to solve the equations ; using above models and methods, it can get flow field distribution ; including temperature, pressure, turbulent kinetic energy and its dissipation rate, turbulent viscosity, velocity, density. these results are significant to design and improve the plasma ignition
本文旨在通過構造反映等離子點火器內部流動規律的基本方程組,建立描述等離子點火器內部的復雜物理化學過程機制數學模型:模擬等離子發生器內部燃燒的-雙方程湍流流動模型;模擬氣體燃料在燃燒時中化學反應的簡單化學反應系統模型;模擬等離子點火器內部湍流預混燃燒的漩渦破碎模型;模擬等離子點火器高溫燃氣及其壁面的p - i輻射換熱的模型等等,對模型進行一定的合理的簡化,然後數值模擬等離子點火器內部流場的流動。A two - zone and a multi - zone diagnostic and predictive models are proposed for combustion process in gasoline engine, contains spark ignition process, transfer heat and no emission calculation, in chapter 2
第二章建立了汽油機燃燒過程的雙區和多區診斷及預測模型,其中包括火焰傳播模型、傳熱模型、點火計算和火焰核發展模型、 no _ x的生成模型以及工質物性參數的計算模型。The results show that the engine rapid prototype control system based on vxworks has desirable property on reliability and real time performance in the engine ignition experiment
測試結果表明,快速原型控制系統在發動機點火試驗中,測量精度和系統運行的可靠性方面及實時性方面均達到了預定的設計要求。Organisers will keep a reserve flame in case there are problems lighting the torch
大會組織者將預留一個火種以防點火出現問題。In this paper, the ruv4 ignition coil testing system has been designed and debugged successfully. the experiment shows that it works well in the laboratory environment, with the ability to test the 26 dynamic parameters automatically
設備的實際運行狀況表明:系統工作穩定,能夠自動、可靠地測量點火線圈的26項動態參數,達到了預期的實際要求,適用於產品的在線檢測與出廠檢測。( 4 ) the application of artificial neural network in the field was studied. by bp ( back - propagation networks ) neural network and rational choice of the calculation factor, the relation between the improved mixture composition and combustion rate, and that between the charge of ignition rocket and p - t curve were simulated. the model could exhibit in essence the inherent relation and the forecasted results were in good agreement with the actual testing results, which showed that the model could be used as a guide for the design of the composition and the ignition engine, and that artificial neural network could be employed in the field for the purpose of reducing experimental work of hazardous materials
( 4 )對人工神經網路在該領域的應用進行了研究,先後利用誤差反傳神經網路( bp網路) ,並選擇合理的計算因子,分別對改進耐水點火藥配方與燃燒速度以及點火發動機裝藥與p - t曲線進行了模擬,模型基本能夠反應它們之間的內在聯系,預測結果與實際測試結果基本吻合,模型基本能夠指導藥劑配方和點火發動機的設計,表明了人工神經網路可以應用於該領域以期達到減少危險品試驗的目的。Shenzhou 6 underwent its first orbit maintenance operation to restore the vessel to its original trajectory by firing its engine for 6. 5 seconds in its 30th revolution around the earth
神舟六號飛船在第30圈飛行中,飛船發動機點火6 . 5秒,進行變軌后的首次軌道維持,以保持太空船在預定軌道。The results attained are as follows. on account of the strongly coupling character of parameters which have an effect on scramjet performance, the approximate evaluation models of scramjet inlet diffusion performance and the ignition problem in direct - connected experiments are established by neural network methodology
針對發動機性能影響因素強烈耦合的特點,採用bpnn和rbnn神經網路方法,分別建立了超燃沖壓發動機進氣道擴壓性能和直連式發動機點火性能的神經網路近似評估模型,得到了很好的逼近效果和預測能力。分享友人