自燃指數 的英文怎麼說
中文拼音 [zìránzhǐshǔ]
自燃指數
英文
self-ignition index-
Abstract : in the research of internal combustion engine, recordingin - cylinder pressure and temperature is an essential technique to study the thermal cycle of internal combustion engine. the combustion analyzer developed in this study will give both the measurements at sampling points per crank angle or sampling cycle, calculate and show the real time parameters which decide the working process of internal combustion engine, such as pressure accelerating rate, indicateed mean effective pressure, cycle - to - cycle variation, heat release rate, etc. compared with the imported congeneric products, the analyzer has many advantages such as chinese interface, low price, easy operateing, convenience in maintainance and easy upgrading
文摘:為了測錄內燃機缸內的壓力及溫度，開發了一種內燃機燃燒分析儀.該分析儀由國產高速數據採集卡及自行開發的控制軟體組成.它不僅能精確設置每度曲軸轉角內采樣點的個數和採集循環數，而且在採集過程中能實時計算和表徵內燃機工作過程的壓力升高率、平均指示壓力、循環變動率、放熱率等參數.經實際使用以及與國外產品相比表明，此分析儀具有全中文界面、價格低、操作簡單、使用維護方便、功能便於擴充等優點The flame - retardant and mechanical properties of the frp specimens with different fra ratio were investigated. it is shown that the oxygen index of the resin with the ratio of 15wt % of the fra reachs 28. the specimens are quenchable without any outer forces, however, the bending strength of the specimens decreases significantly
研究了不同阻燃劑含量frp的阻燃性能和力學性能，結果表明，阻燃劑加入量為15wt %時， frp氧指數達到了28以上，使該材料達到自熄級水平，但其彎曲強度下降較大。And since, as he shows, it is impossible to be consistently profitable without understanding and using the market ' s key numbers, busby explains how to read the major statistical indicators, as well as illustrates the significance of fuel prices, precious metals, futures indices, and other market indicators
自此，因為他表明，它是不可能被連續贏利，沒有理解和運用市場的關鍵號碼，巴斯比解釋如何閱讀的主要統計指標，以及說明意義的燃料價格，貴金屬，期貨指數，以及其他的市場指標。In this system, mean velocity pipe is applied to transform the air velocity signal into pressure difference signal, and then the pressure difference signal is input into pressure difference transmitter to realize the transform of the pressure difference signal from non - electricity signal to electric current, and through the resistance in the corresponding sampling circuit the electric current is transformed into voltage signal ; the thermocouple is used as the primary element to realize the transform from temperature signal to the voltage signal ; under the control of communication agreement module, diversified voltage signal is transported into computer by way of a / d conversion module, and then the monitoring software compiled beforehand is transferred to deal with all the voltage signals relatively, the result of which is conveyed to relative interface to display
該裝置具有三個特點：一是採用表面式測溫方法，有效地減少了元件的維護與損耗；二是採用工業控制計算機及信息就地採集、數據總線傳輸的方式，充分利用計算機和數據自動採集方面的技術，實現各種參數的在線測量，監測指標全面，能與dcs系統聯用，具有技術先進性和一定的前瞻性；三是採用顯示器配工業觸摸屏的顯示方式，為現場運行人員提供了簡單、易學、方便的操作模式。本裝置自2001年8月投入運行以來，有效地幫助、指導運行人員進行燃燒調整，對于鍋爐和機組的安全、經濟運行發揮了重要作用。For big hysteresis control, response time is long and overmodulation is big, but dynamic performance figure is not good when we only use pi controller 。 so, i try to design the whole control project which composed of the vapor wraps water level control system and combustion control system use the control equipment of double cross - parameter fuzzy - pi controller
單獨採用pi控制，對大滯后控制，響應時間及超調很大，但動態性能指標差。因此，嘗試採用雙交叉參數fuzzy - pi控制器。組成了汽包水位和燃燒雙交叉參數自調整fuzzy ? pi組合控制器的整體控制方案。Supported by the important natural science foundation of tianjin ( research and development of low nox emission of gas burners with high efficiency ), experimental investigation and numerical simulation of low nox emission in gas combustion are accomplished in this paper, which provides guidance for the development of low nox emission of gas burners
本文在天津市重點自然科學基金項目（高效低no _ x排放燃氣燃燒器的研究開發）的資助下，對燃氣燃燒的低no _ x排放完成了實驗研究和數值模擬，為低no _ x燃氣燃燒器的開發提供指導。分享友人