面熱源 的英文怎麼說
中文拼音 [miànrèyuán]
面熱源
英文
plane heat source-
This paper introduces construction technique and method of asphaltum concrete surface in a construction section of reruan road in songbei district of harbin city
本文介紹了哈爾濱市松北新區熱源路道路工程某施工路段瀝青混凝土路面面層施工工藝和方法。Itr ( interfacial thermal resistance ) has been one of the important problems to be resolved in many fields such as avigation, spaceflight, biomedicine, energy, mechanism and low tc superconductor
界面熱阻是航空、航天、生物醫學、能源、機械、低溫超導領域中關註解決的重要問題之一。Heat convected, a mode of motion developed by such combustion, was constantly and increasingly conveyed from the source of calorification to the liquid contained in the vessel, being radiated through the uneven unpolished dark surface of the metal iron, in part reflected, in part absorbed, in part transmitted, gradually raising the temperature of the water from normal to boiling point, a rise in temperature expressible as the result of an expenditure of 72 thermal units needed to raise i pound of water from 50 to 212 fahrenheit
燃燒所引起的運動形式之一-熱對流傳熱,不斷地加速度地從熱源體傳導給容器中的液體,由那凹凸不平未經打磨的黑色鑄鐵面把熱向周圍發散出去一部分反射回來,一部分被吸收,另一部分被傳導,使水的溫度從常溫逐漸升到沸點。這種溫度的上升可作為消費結果標志如下:將一磅水從華氏五十度加熱到二百十二度,需耗七十二熱量單位。Through the research work of this article, it is shown that cfd technology can efficeintly instruct the design of indoor air distribution and evaluate indoor air quality and ventilating effect ; the distribution of heat sources have great impact on indoor air distribution ; under variable air volume condition, the indoor temperature and velocity fields are quite even and the thermo - environment is relatively good when using diffusers with coanda effect such as square diffuser and slot diffuser to supply air
經過本文研究發現,利用cfd技術可以有效地對空調室內氣流組織設計進行指導,全面對室內空氣品質和通風效果進行評價。熱源分佈對于空調室內的氣流組織具有極其重大的影響。在變風量條件下,利用具有良好貼附效應的送風口如方型散流器和條縫風口送風,空調室內的溫度場和速度場較均勻,室內的熱環境良好。Then basing the empirical formal proposed by weng burning, a method for reckon the average flux of energy transfer from ground surface to the air of a day according albedo and terrain parameters was put forwarded. it is considered that the flux is a proper index to decide if the area is a hot source or a cold source
然後,在翁篤鳴等提出的有關半經驗公式的基礎上,提出了根據反照率和地形參數計算高原地面向大氣輸送能量的日平均通量的演算法,並以此作為判定冷熱源的標準。Aimed at the automatic welding of the air - separate equipments. a computer control system for double - side automatic tig erect welding has been developed in this paper, which can keep the welding parameters of two welding torches consistent, and adopt a high - power and centralized energy fountain, and can take warm - up casually. the control system can assure a higher welding quality and a better work condition and a higher productivity than before
為實現空分設備的焊接自動化,本文研究開發一種雙面自動tig立焊計算機控制系統,採用大功率和能量集中的熱源,克服了由於預熱而使手工焊接工人勞動環境的惡化,同時使得兩把焊槍的焊接參數保持一致,從而可得高的焊接質量,改善焊工的勞動條件,大大提高勞動生產率。According to dynamical characteristic of the bubble motion in the flow field, and under the assumptions of isothermal system without interior heat source, uniform bubble size, and ignoring surface tension, the mathematical expressions for interfacial momentum exchanges have been deduced which include drag, virtual mass force, and lift
針對氣液泡狀流中氣泡運動力學特性,在系統絕熱、無內熱源、忽略表面張力、氣泡尺寸均一前提下建立了氣液相間曳力、虛質量力、升力的數學模型表達式。In the last part, an experiential formula for nondimensional thermal stratification height is obtained, which includes inlet temperature t, inlet velocity v, heat transfer of the wall body q and the distance of heat source l. in order to obtain a more realistic result, the ? model is used to simulate the airflow and the buoyancy item is treated by boussinesq hypothesis. the paper investigates the flow field of the displacement ventilation in an office by a numerical method
兩方程湍流模型為基礎的壁面函數處理方法,對熱浮升力項採用了boussinesq假設,得到了收斂的溫度場、速度場分佈。在此基礎上,給出了熱力分層高度的計算方法,並分析了送風溫度、送風速度、圍護結構傳熱和熱源分佈等因素對熱力分層高度的影響。Rf welding : many products require specialty bonding and our welding capabilities will accommodate these needs with specially designed state - of - the - art equipment
在高頻焊接方面:世源科技公司經特殊設計的先進設備完全能夠滿足眾多產品需要高熱封接合要求的需要。Oil mist and hot spot ; abnormal friction between sliding surfaces causing a hot spot
油霧和熱源;滑動表面之間不正常的摩擦引起的熱點。Based on the convergence criterion of root - mean - square ( rms ) of phase and output power, the actual intensity on reflectors are solved with fox - li iteration so that the deformations of mirrors and one - way phaseshifts are calculated. by simulating one - way phaseshifts with zernike polynomial, the laser modes are studied with method of iteration and geometriy. the evaluation factors of components influences on beam quality is discussed
根據相位均方根值迭代收斂準則和輸出功率,用fox - li迭代法求出反射鏡上實際的光強分佈和熱源,得到鏡面的位移變形和單程附加相移,以zernike多項式擬合單程附加相移,分別用迭代法和幾何法計算了腔鏡變形時的腔模光場,建立了光學元件對光束質量影響的評價因子,研究腔鏡冷卻效果和冷卻方式,對輸出耦合鏡的變形進行了分析。High power led lighting matrix with aluminum heat sink. driving module with color temperature controlling is available. customer design is possible
高功率led平面光源模組加鋁基散熱板,可控色溫。可選購驅動模組。依不同需求,可客制化製作。Through field investigation and analysis indoor, with studying all hydrochemistry data in detail, including macro components and micro components, the author finds out the hydrochemistry feature of ground water. for further specifying the ground water system, with cluster analysis of macro components of surface water and ground water in total 147 samples and the analysis of micro components, including ree, the main ground water systems are distinguished by and large, especially the ground water system main of fault no. 7 and fault no. 15 water bearing belts which have differences at macro and micro components between the two ground water systems, moreover, the main hydrogeochemistry effects are established such as lixiviation, oxidization, precipitation and mixing effect, especially the mixing effect which result in the complexit y of the hydrochemistry of deep bearing tectonic fracture water. based on them, the hydro geological model of upper dam base is established, meanwhile the author summarizes the hydrochemistry feature of weathering crevice water, surface tectonic crevice water and deep tectonic crevice water
為此,本文以大崗山壩區水文地球化學問題為研究對象,通過野外調查和室內分析,詳細的研究了壩區水化學資料,包括宏量組分、微量組分,查明了壩區地下水水化學特徵,對採集的147個地表及地下水樣的宏量組分進行聚類分析,結合微量元素,稀土元素的研究,並應用二氧化硅地熱溫標確定了深部構造裂隙水的熱源深度,基本區分了壩區各個主要地下水水系,特別是以f7 、 f15斷裂含水帶為主的地下水系,它們的宏量組分、微量組分以及稀土等方面均存在差異,以此為基礎,結合壩區水文地質條件,建立了壩區的上壩址的水文地質模型,同時通過分析了壩區花崗巖區的水化學資料,確立了壩區主要的水文地球化學作用,分別為:溶濾作用、氧化作用、沉澱作用、以及混合作用,混合作用是導致深部承壓裂隙水水化學復雜的主要原因,並總結了壩區風化裂隙水、淺部構造裂隙水、深部構造裂隙水的水化學特徵。The paper establishes mathematics model of electromagnetic heating system of eddy current field and temperature field, and gives corresponding discrete format with elements as eight nodes, hexahedron equal cell, through calculating eddy - current field to gain the internal heat source that the temperature field needed, to use discrete method to solve the problem of induction - heating part ' s temperature field by axial symmetrical electromagnetic, and then to analyze the characteristic of instantaneous temperature field
本文建立了電磁加熱系統的渦流場和溫度場間接耦合的數學模型,分析了不同頻率下渦流和溫度的分佈情況,並以八節點六面體等參元為例給出了渦流場對應的離散格式,通過計算渦流場獲得溫度場所需要的內熱源強度,加熱部件的溫度場以軸對稱格式進行離散求解,並對瞬態溫度場有限單元法的求解特點進行了分析。Standard test method for surface flammability of flexible cellular materials using a radiant heat energy source
用輻射熱源作軟質多孔材料的表面可燃性的標準試驗方法Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
文摘:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。The thermal model used in this paper can figure out the temperature rise of the winding and core respectively
本文採用的熱模型包含兩個熱源和三個熱阻,可以分別計算出平面變壓器繞組和鐵心的溫升。A new method is developed to predict the temperature distribution of cooling - plate with non - uniform heat load on the surfaces, meanwhile, two types of cooling - plate used in the environment control system of airplane are studied experimentally under conditions of different reynolds number of air and surface heat loads
摘要提出了一種新的冷板簡化數學模型,把翅片摺合成導熱系數?各向異性的等效厚度層實芯板,將冷板與空氣的對流換熱作?等效層的穩態導熱問題,計算了表面熱源非均勻條件下冷板的溫度分佈。The determination of thermal conductivity of tetrahydrofuran hydrate at atmospheric pressure by transient plane source method
瞬變平面熱源法測定常壓下四氫呋喃水合物的導熱系數分享友人