高發熱值 的英文怎麼說
中文拼音 [gāofārèzhí]
高發熱值
英文
gross calorific value-
In section one, by using fice scheme and time - gcm, a model of trace gases and oh airglow affected by gravity wave is set up, then the propagation of nonlinear gravity wave and the effect on trace gases and oh airglow are analyzed. the result shows gravity wave excited by tropospause forcing can propagate stably to the mesosphere through the stratosphere so that energy and momentum can be transferred from one region to another. in this process, gravity wave undergoes growth, overturning, convection and breaking
在第一部分的工作中,利用全隱歐拉格式和全球熱層-電離層-中間層-電動力學環流耦合模式( time - gcm ) ,對重力波的非線性傳播及其在傳播過程中對中高層大氣中氧族和氫族成分和與之密切相關的oh氣輝輻射的影響進行了數值模擬,結果表明,從對流層向上傳播的重力波經歷了產生、發展、飽和、對流產生直至破碎的非線性演化,大氣的非等溫結構加速了重力波在中層頂區的破碎,重力波的非線性傳播是小尺度對流和湍流產生的一個重要的源。The qitaihe coal resources isadvantageous, the coal field total area 8, 000 square kilometers, haveverified the geological reserve 1. 7 billion tons, the prospectivereserves 4. 2 billion tons, the coal plant completely, has the cokingcoal, 1 / 3 coking coal, the gas coal, the anthracite and so on 10varieties, by coking coal primarily ; excellent in quality, has theespecially low phosphorus, especially low characteristic and so onsulfur, high heat value, high ash melting point, high silicon content, most is suitable for the coal chemical industry product thedevelopment, is national one of three big protections mining rare coalfields, is the heilongjiang province most important anthraciteproduction base, also is the national important coking coal and thenortheast area biggest high quality coke production base
七臺河煤炭資源得天獨厚,煤田總面積8000平方公里,已探明地質儲量17億噸,遠景儲量42億噸,煤種齊全,有主焦煤、 1 / 3焦煤、氣煤、無煙煤等10個品種,以主焦煤為主;品質優良,具有特低磷、特低硫、高發熱值、高灰熔點、高硅含量等特點,最適于煤化工產品的開發,是全國三大保護性開采稀有煤田之一,是黑龍江省最重要的無煙煤生產基地,也是國家重要的主焦煤和東北地區最大的優質焦炭生產基地。Application of low heating value blast - furnace gas in power unit
低熱值高爐煤氣在發電設備中的應用We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful
綜合分析認為: ( 1 ) 、這次冷渦在其發生發展過程中,其移動路徑是沿經圈直線南壓,攜帶的冷空氣勢力較強,形成槽后較強的垂直運動; ( 2 ) 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸,把源源不斷的西南暖濕氣流輸送到遼西地區,也就是急流軸的左前方位置,為這次暴雨的產生提供了充足的水汽來源; ( 3 ) 、低空急流不但為暴雨輸送水汽,其造成的較強的垂直環流也是產生強降水的一個主要原因; ( 4 ) 、 mm5模式以四維同化資料作為初始場,最大限度地避免了觀測誤差可能造成的積分不穩定,提高了模擬結果的參考價值。The following results were found, i. e., the water ratio affects obviously the acoustic wave velocity of rock sample ; the wave velocity is higher in saturated rock samples than in unsaturated ones ; and it decreases gradually with the strain of samples during uniaxial compression ; and also with the lengthening holding time at 160 ; when heating the samples the acoustic wave velocity increases slightly in initial stage and comes to the peak value at 60, then decreases gradually with increasing temperature ; meantime, there is a certain temperature effect on rock samples size
實驗發現含水率對波速影響比較大,飽和巖樣的聲波傳播速度高於不飽和巖樣的聲波傳播速度;人工預制裂紋對聲波傳播速度影響不大;單軸壓縮條件下,聲波傳播速度隨應變增加逐漸降低;在同一溫度( 160 )下,波速隨保溫時間的增加而逐漸降低;在對巖樣逐漸加熱情況下,初始加熱階段波速略有升高,當溫度達到60時,巖樣波速達到峰值,之後隨著溫度繼續升高其波速逐漸下降;波速隨溫度變化具有一定的尺寸效應。“ the facility is to provide high enthalpy [ thermal dynamic ] model scramjet testing, ” he says
「該實驗室將提供高焓值[熱動力學]模型超燃沖壓發動機測試, 」他說。Wet and dry numerical simulation tests for explosive cyclone over western pacific were performed. by contrast the results show that : tropopause and constant temperature surface were raised by latent heat release in upper level and disturbance trough was produced because air flow ascended and became cold. owing to this process adaption, inertial instability emergenced
對氣旋強烈爆發的過程進行干濕對比數值模擬試驗,得出:潛熱釋放使對流層項和等溫面抬高,氣流在高層的上升冷卻形成擾動槽,其適應過程使高層出現慣性不穩定。Aiming at such problems in combustion system of homemade middle and miniature boiler, as a complex system with the character of dead zone, time variation, serious non - linearity, large time delay, coupling and a lot of disturbance, this paper presents a new set of optimal control resources. by using well - matched control method on system, stable automatic running is realized. having the serious divulgence coals difference a lot from each other in character, instability of chemistry, value of lowest emission of heat, home - made boiler controller is not at all ideal. instead of traditional model that controls the ratio based on proportional control or with the correct signal of the amount of oxygen, this paper, combined with intellect control theory - - fuzzy control and self - optimizing concept, propounded a kind of fuzzy self - optimizing controller to be used in air supplying system of the boiler, and expatiates on the idea of dividing the control process into two parts, dynamic and static to realize, thus meets the demand of homemade boiler economic running
本設計針對國產中、小型電站鍋爐燃燒系統參數時變、嚴重非線性、干擾因素復雜、耦合嚴重、模型不易確定的特點,提出多變量協調控制方案,解決了系統可控性差,難以實現穩定自動運行的問題;在此基礎上,改變以往以煙氣含氧量控制送風的傳統模式,針對國產電站鍋爐設備主體及一、二次送風迴路泄露嚴重,煤種混雜、成分不穩定、燃燒發熱值低、燃燒效率不高等問題,應用智能控制理論中的模糊控制技術,結合自尋最優控制的思想,設計了一種模糊自尋優控制器,應用在電站鍋爐送風控制系統上,並闡述了動靜態兩種實現途徑,通過在線優化風煤配比,實現最佳經濟燃燒,切實保障了鍋爐的經濟運行。In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象,考慮滲流與傳熱的相互作用,採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明,高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域,增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降,熱滲透深度擴大,熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域,孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用This paper introduces the new approach of biogas usage abroad : upgrading the biogas by purification and concentration, it could become high calorie gas fuel as a direct substitute for natural gas, and used in natural gas - fueled equipment, vehicles ( ngvs ), and the related
摘要本文介紹了當前國內外沼氣技術應用的動態:利用濃縮凈化技術把沼氣改進成高熱值的生物質甲烷,並將其用到天然氣應用的相關領域,可為中國沼氣應用的發展提供一些借鑒和思考。In addition, the model of interaction of water and temperature between field water vaporization and soil water storage, temperature and millet weight is gotten by field trial. 2. the ammonia volatilizing of fertilizer is suit to the dynamic equation as y = a + bt, the coefficients in the equation are related to the kind of fertilizer, temperature and water content of soil, and the dynamic equation about ammonia volatilization including water and temperature and the is developed
肥料氨累積揮發量符合零級反應動力學方程y = a + bt ,方程中系數與肥料種類、溫度和土壤含水量有關,碳銨a 、 b值均比硫酸銨高,土壤含水量增大, a 、 b值降低,溫度升高, a 、 b值增大,並由此得到含溫度或土壤濕度因子的肥料氨揮發動力學方程,並建立了含水、熱因子的肥料氨揮發水熱耦合效應動力學方程。For the strategic goals as mentioned above the author proposed a development strategy of 6 points i. e. : 1. exploit the specialty of zhugang ' s hot rolling tandem mill fully to produce marketable hot rolled coils with high added value ; 2. develop ultra thin product varieties to " replace cold rolled products by hot rolled one " and create new market for these hot rolled coils ; 3
為實現上述戰略目標,作者提出了珠鋼6項發展戰略:武漢理工大學碩士學位論文1 .充分發揮珠鋼熱連軋的專長,多生產銷售對路、附加值高的熱軋鑰卷: 2 .開發「以熱代冷」的超薄板品種,開拓熱軋鋼卷的新市場; 3 .建設具有「大酸洗、小冷軋」為特徵的冷軋鋼工程; 4 .為填補廣東省鋼材品種的空白,珠鋼冷軋生產應以多品種為己任; 5 .實施「一次總體規劃,分步建設實施」的滾動發展模式; 6 .提高企業物流管理水平,實現一體化的企業物流管理。Four methods have been taken to decrease the total heat quantity generated by the solenoid coil. the four methods are to reduce the duration of the high voltage, to reduce the amplitude of the high voltage, to reduce the duration of the control signal, and to reduce the amplitude of the low voltage. it was found that the four methods did have some effect on temperature
研究發現,以減小電磁閥的總發熱量為目的而採用的縮短高電壓作用時間、降低電磁閥高低壓驅動的高電壓幅值、縮短控制信號持續時間和降低維持電壓的四種方法,對減小電磁閥的發熱都是有效的,但效果都不特別顯著。After the rationality of theoretical model has been testified, going along a series of numerical simulation and find the best ratio of evaporation segment and condensation segment by means of analyse the temperature variety of the electronic element surface on the effect of the radiator structure change. a series of strenthen step about heat transfer put forward theoretically by means of numerical analysis focuse on the thermal resistant of each tache of the heat transfer
在證實了本理論模型是合理的基礎上,本文根據所建立的模型進行了一系列的數值模擬計算,分析了熱管型電子器件散熱器的結構尺寸(蒸發段和冷凝段的長度比、肋片的高度等)變化對發熱器件表面溫度的影響,得到了蒸發段和冷凝段的最佳長度比。Therefore, very high resistance and / or long hot zone lengths are not practical
因此,高阻值及/或加長發熱部的長度不實用。The immersion electrical heater is chiefly applied in the direct contact mode of fluid heating. it features fast heat exchange and high thermal efficiency. it has the varieties of water heater, oil heater and gas heater. its heating element power density, i. e. the power per unit of heating area of the heating element, is an important parameter of the electrical heating element, which has a direct bearing on the performance and working life. the working out of the value is a highly specialized problem, being under the influence of many factors ( media flow rate, tempt, physical and chemical properties and direction in which the medium flows past the element etc )
浸入式電加熱器主要用於直接對流體接觸加熱的場合,具有熱交換快,熱效率高等特點,分為水用加熱器、油用加熱器、氣體用加熱器,加熱元件的功率密度:即電加熱元件單位發熱面積上的功率,它是電加熱元件極重要的參數,直接影響加熱器的使用性能及使用壽命,它的取值是一個非常專業的問題,受到許多因素的影響(如介質的流速、溫度、物理和化學性質及介質流過加熱元件的方向等等) 。Ptc heater uses the ptc heating sensitive resistance as the heating source. it is widely use in the air - conditioner, warm drier and warmer etc. as the secondary heating. the resistance value of the ptc heater will rise or reduce with the change of the environment temperature as it makes the ptc heater has the features of energy saving, even heating, safe and long life. it is widely welcomed by a lot of customers
Ptc加熱器是採用ptc熱敏電阻元件為發熱源的一種加熱器,廣泛用於空調器的輔助加熱和暖風機取暖器等電氣設備上, ptc熱敏電阻元件因具有隨環境溫度高低的變化,其電阻值隨之增加或減小的變化特性,所以ptc加熱器具有節能恆溫安全壽命長等特點,被越來越多的用戶所歡迎。Elements are interchangeable with all silicon carbide heating elements manufactured in the united states as well as higher resistance heating elements manufactured for the asian and european markets
這種美國製造的硅碳棒均具備可替換性,也為亞洲和歐洲市場生產很多高阻值發熱元件。Elements are interchangeable with all silicon carbide heating elements of similar design manufactured in the united states as well as higher resistance heating elements manufactured for the asian and european markets
這種美國製造的硅碳棒均具備可替換性,也為亞洲和歐洲市場生產很多高阻值發熱元件。Cassava root is used for carbohydrate source in tropical region. quality of cassava starch is variable and affected by many factors. an attempt was made to evaluate the effect of peeling, washing and drying on starch purity and starch paste viscosity. paste viscosity were based on results of rapid visco analysis ( rva ). the results of this study revealed that : peeling, washing and drying temperature significantly affected cassava starch purity and starch paste viscosity. the starch from unpeeling root had a dullness color, but had higher peak viscosity, trough, final viscosity, breakdown and setback than that of starch from peeling root. more washing not only increased starch purity, but also improved starch past characteristics, such as peak viscosity, trough, final viscosity, setback and pasting temperature. different drying temperature had no effect on starch whiteness. starch purity had a little increase with drying temperature increasing. in general trend, starch dried at higher temperature had higher peak viscosity, trough, breakdown, final viscosity and higher setback
木薯在熱帶地區是碳水化合物的主要來源.木薯澱粉的品質受許多因素的影響.本項研究著重探討澱粉提取過程中,削皮、水洗、乾燥溫度對澱粉純度、白度和澱粉糊化粘度的影響.結果表明,未削皮的澱粉樣品色發灰,但具有比削皮處理高的峰值粘度、 95最後粘度、 50時粘度、峰值降和持久性.增加水洗次數,不但能增加澱粉純度,還可提高澱粉高峰值粘度、 95最後粘度、 50時粘度、持久性和糊化溫度.不同乾燥溫度對澱粉白度無影響,但澱粉純度隨乾燥溫度的提高而稍稍增加.通常高的乾燥溫度有高的峰值粘度、 95最後粘度、峰值降、 50時粘度和持久性分享友人