熱電對流 的英文怎麼說
中文拼音 [rèdiànduìliú]
熱電對流
英文
thermal convection-
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。Hot water is likewise less dense than cold water and rises, causing convection currents which transport energy
熱水是同樣密度較低，比冷水上升，造成對流電流，其中運輸能源。Contraposing the measurement principle of the traditional hotwire air mass flowmeter, the reason of the excursion of the result for flow measurement was analyzed and inferred when environment temperature changed ; the method for temperature compensation and the realization circuit was given ; and compared the theory output of the new type hotwire air mass flowmeter with its real output after temperature compensation
摘要針對傳統型熱線式空氣質量流量計的測量原理，分析和推導出當環境溫度變化時對流量測量結果產生偏移的原因；提出了一種環境溫度的補償方法和具體的實現電路；並對經環境溫度補償后的一種新型熱線式空氣質量流量計的理論輸出和實際輸出進行了計算與比較。The control system of furnace " s temperature has been widely used in every walk of life, as an important link of repair and manufacture of the electrical equipment such as electromotor transformer etc., soaking lacquer drying craft has some especial requests on drying crafto this article starts with the analysis of drying chamber " s configuration, analyzed its configuration limitation and control function limitation according to the factory " s situation and advances the conception of heated air drying circulation, in addition, this article adopts an intellectualize a / d module, a development sampling tuning - voltage circuit, and presents the method to measure online the insulation resistance of products in order to improve constantly products quality
而浸漆乾燥工藝作為電機、變壓器等電氣設備的修理、製造中的重要環節之一，對乾燥過程的質量要求有一定的特殊性。該文從乾燥爐的結構分析入手，聯繫到工廠的實際情況分析了結構功能缺陷和控制功能缺陷，提出了熱風循環乾燥的概念，同時，選擇了較為先進的a d板卡、熱電阻信號調理板等專業化智能卡，運用數字pid控制技術，構成了一個較有特色的計算機控制系統。此外，該文還從保證乾燥品質量的角度，採用智能化交流模塊和自製采樣調壓電路的方法，提出了在線檢測產修品的絕緣電阻的方法和手段，以確保企業產品質量不斷提高。Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星（如木衛三，水星，地球，木星和土星）和恆星（如太陽）具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動，磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線，即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色，並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型Thermopile detectors are thermal detectors consisting of a pile of thermocouples
Thermopile sensor是由許多對熱電偶組成的熱電堆，並以直流方式輸出Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well
文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。This paper select the series - resonant inverter because it is more suited to high frequency power supply and it will be easy to enhance power capacity and enable the power supply to work on higher frequency if power is regulated in the rectifier. so uncontrolled rectifier and buck chopper constitute dc circuit is selected as rectifier circuit
並分析了感應加熱電源的各種調功方式，在對比幾種功率調節方式的基礎上，得出在整流側調功有利於高頻感應加熱電源頻率和功率的提高，選擇了不控整流加斬波器調壓作為研究對象。In this article, technology process, the equipment, technology parameters are designed though listing an engineering instance which gasifying and generating electricity in demostration site by biomass in longjing city jilin province
本文對工程實例? ?吉林省龍井市合成利村生物質熱電聯供示範點的工藝流程、主要設備組成、工藝參數進行了比較全面的設計。Coal - water slurry is a new type of clean fuel as a replacement for oil. this paper introduces the tests of maoming no. 2 oil - fired 220 t / h utility boiler being retrofitted to fire coal - water slurry, including slagging tendency, heat transfer performances and pollutant emissions. firstly the k - ? two - equation turbulence model is used in numerical simulation for the side - air burner, compared with the practical measures and tests, good accordance achives
水煤漿是一種低污染、高效率、流動性強的代油新型清潔燃料，本文針對廣東省茂名熱電廠2 #油爐改燒水煤漿示範工程，對鍋爐改造后的結渣特性、爐內傳熱特性和污染物的排放特性進行了試驗研究。Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical
通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。Various forms of combining parts of the invention, by which water in multi - stage recirculating water - heating tank for collector and / or multi - stage confluent water - heating tank, as a whole or separately, can be heated by solar energy collector, or a heat pump, or an electrical heater, fall into the following categories : on sunny day, it ' s enough to use the solar energy collector to heat water, then hot water is stored ; in confrontation with off - peak electricity at night, use the heat pump or the electrical heater to heat water, then hot water is stored ; during the time of a cloudy day without off - peak electricity, use the heat pump to instantly heat water according to the storage capacity of predetermined amount of produced hot water, then hot water is stored
所述的經太陽能集熱器、或熱泵、或電加熱裝置同時或分別對集熱器循環加熱水箱、分級加熱式匯流熱水箱中的水進行分級加熱的組合包括:陽光天可全部採用太陽能集熱器進行加熱和儲存熱水，夜間峰谷電時段可採用熱泵或電加熱裝置進行補充加熱和儲存熱水，無陽光的非峰谷電時段可根據定量的熱水儲量設置需求採用熱泵進行即時加熱和儲存熱水。The temperature sensing layers each constructed of 28 copper and nickel thermocouples placed in series to form a differential thermopile
該薄膜熱流計是由28對熱電偶組成的熱電堆，大小為38 22mm ~ 2 ，總體厚度為1mm 。The adoption of patent technology iodine tungsten lamp red heating can incorporate the energies of electricity, light and infrared ray radiation into a whole ; and the water absorption rate can reach the best with the effects of radiation, conduction, convection and function of light energy
專利技術碘鎢燈紅加熱，集電能、光能、紅外線輻射於一體，利用輻射、傳導、對流及光能的作用使水吸熱率達到最佳。The new device consists of paint - drying box, heat carrier boiler, heating pipe, expansion tank, gas separator and oil tank, etc. the data of two applied examples shows that heat carrier paint drying method is able to make painting - drying cost drop by 88 %, compared with the conventional one, that it has some advantages such as uniform temperature field, good appearance and lower costs, compared with conventional hot air convection mode
該裝置主要由熱載體烤漆爐、輻射加熱管，熱載體爐、膨脹器、油氣分離器和儲油槽等組成。應用實例的測試數據表明，與傳統的遠紅外電加熱鋼瓶烤漆方式相比較，鋼瓶熱載體烤漆節能和降低能耗費用十分顯著，能耗費用降幅達到88 。與熱風爐對流烤漆方式相比較，熱載體烤漆方法不僅節能，而且烤漆爐溫度場均勻穩定，同時烤漆的外觀質量也得到了明顯提高。Mesoscale convective system ; geostationary satellite ; tropical rainfall measuring mission ; lightening
中尺度對流系統地球靜止衛星熱帶測雨衛星閃電In steady and transient state, air temperature field and flow field inside the thermoelectric refrigerator, loaded and no loaded, are calculated by using a cfd software pheonics
採用pheonics數值模擬軟體，對熱電冰箱的無負載瞬態工作、有負載穩態和瞬態工作時箱內溫度場和流場進行了數值模擬。This paper is subject to national emphasized groundwork research item named conception validation about the new process of coal translation and optimization integration of the process, and it focuses on the research of the monitoring and controlling system of circulation fluidized bed ( cfb ) multi - generation test - bed according to the test - bed project of zhejian university institute of thermal power engineering cfb multi - generation system combining combustion & gasification test - bed, while considering an utilizing advanced technology and experience domestically and abroad
本課題從屬于國家重點基礎研究規劃項目一煤轉化新過程概念驗證及過程的優化集成課題，結合浙江大學熱能工程研究所循環流化床燃燒氣化熱電氣多聯產試驗臺，根據試驗臺的實際情況，借鑒國內外的先進技術和經驗，對循環流化床多聯產試驗臺的計算機監控系統應用進行了深入的研究。In this condition heat convection inside and outside of tube are coupled. coefficient of convective heat transfer inside and outside of tube gotten through such way compare with coefficient of convective heat transfer inside and outside of tube gotten through by electricity. for comparability between this two condition, the average heat flux on the tube must be equal for this two condition
這種情況下管內外對流換熱是藕合的，得到的管內外對流換熱系數分別與電加熱管道壁面的邊界條件下管內和管外流動的對流換熱系數相對比，為了使他們具有可比性，我們規定在這兩種邊界條件下通過管子的平均熱流密度相等。The boilers are well - structured and bring good benefit for enviroment protection. china is a big country for energy consumption, now, saving energy and enviroment protection have been already put on the importment order of the day. the quantity of the boiler required for the development of industry has been increasing, the annual requirement is about 100, 000steam - tons. recently, it has higher requirment to develop the thermoelectricity combustion production. therefore, 220ton hour circulation fluidized bed will have a good prospective market
中國是一個能源消耗大國，現已將節約能源和保護環境，提到了重要日程，而工業的發展對鍋爐的需求量還在不斷增大，每年約需10萬蒸噸，且目前對發展熱電聯產有更高的要求，因此，生產220噸時循環流化床鍋爐有較好的市場前景。分享友人