熱管系數 的英文怎麼說

中文拼音 [règuǎnxìshǔ]
熱管系數 英文
hot channel factor
  • 管 : Ⅰ名詞1 （管子） pipe; tube 2 （吹奏的樂器） wind musical instrument 3 （形狀似管的電器件） valve;...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Thermoplastics pipes - determination of creep ratio

    熱塑性塑料管.蠕變系數的測定
  2. Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping

    本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。
  3. This company strictly according to the iso9001 - 2000 management system request, utilizes the advanced bamboo processing complete set of equipments, uses the advanced domestic and foreign productions craft, the raw material is selected from the high quality natural bamboo, through steamed and boiled in the high temperature, got rid of the sugar and the degrease, carbonized, past the high temperature and thermo - compression

    廠區一角本公司嚴格按照iso9001 - 2000管理體系要求，運用先進的竹加工成套設備，採用國內外先進生產工藝，選用優質天然楠竹為原料，經過高溫蒸煮脫糖脫脂碳化高溫熱壓等數十道工藝，生產防霉防蛀阻燃的「湘君」牌綠色環保型系列產品。
  4. And due to the heat expansile coefficient of the stainless steel rather high, the connecting force between the stainless steel pipe and the pipe coupling in the room temperature is much less than that between the titanium alloy pipe and the pipe coupling. the results accord with the tensile experiments well. finally, the dependence of dimensions of the coupling on the strength of the connector system is analyzed

    模型計算還表明，被接管材料和管接頭材料之間的熱膨脹系數的差異會造成管接頭系統的室溫強度低於高溫強度；由於不銹鋼的熱膨脹系數較大，使得室溫下1不銹鋼管與n立tinb形狀記憶合金管接頭間的抱緊力遠小於鈦合金管與nitinb形狀記憶合金管接頭間的抱緊力，成功地解釋了拉脫實驗中的結果。
  5. Mensuration and analysis of the overall heat transfer coefficient in the weigang - jingmen oil pipeline

    魏荊輸油管道總傳熱系數測定與分析
  6. Total conductivity of heat exchanger of ellipse spiral ophidian coils

    正交橢圓螺旋盤管換熱器的總傳熱系數
  7. For example, the temperature standards, the project adopted a geothermal heating to link with municipal heating networks. the designs of energy - saving insulation wall : extruded ceramic plastic plate, three - window design aluminum - plastics which meet energy requirements, and also to improve the insulation quotiety i

    如溫度標準，小區採取了地熱供暖方式，與市政供熱管網連接，採取節能保溫墻面體設計：陶粒加擠塑板，窗戶採用三玻鋁塑窗設計，即達到節能要求，又提高了保溫系數。
  8. This article aims at the boiler ' s problems in operation : 1 ) under nominal load, the smoke temperature at the outlet of hearth reaches 1200, far more exceeds 1050 the original designed temperature. this will always result in slag inside boiler and the temperature of overheater ' s pipe superheat, so that boiler cannot take nominal load and all these influence boiler ' s nomal operation heavily, 2 ) this article also studied the reason why the assistant oil becoming necessary when coal changes. during the nomal operation, many factors ( makeup of combustor and its disposal, smirch and encrust of water wall, excessive air coefficient, temperature of primary air, coal type and density of coal dust ) can deviate the designed working conditions, then affect the boiler ' s nomal operation

    本文針對該鍋爐在實際運行中存在的問題：在額定負荷下，爐膛出口超溫、低溫段過熱器前煙溫高達936 ，遠遠超過815的設計值；噴燃器四周水冷壁結焦嚴重，過熱器管壁溫度超標，無法帶上額定負荷；甚至有時因燃煤質量的變化，必須投油助燃的嚴重情況進行了分析研究。在實際生產過程中，燃燒器的結構、布置，水冷壁的粘污、結垢，過剩空氣系數、一次風溫、煤種及其濃度變化等許多因素都會偏離鍋爐的設計工況，從而影響爐內的傳熱和燃燒，造成爐膛出口超溫、水冷壁結渣等問題。
  9. Using the opened thermosiphon of 38x3 as experimental element and water as working fluid, the characteristics of dynamic low load boiling, stable severe boiling heat transfer coefficient and critical heat flux are gotten for the opened thermosiphon at the pressure of 0. 02 - 0. 1mpa and 0. 1 - 0. 8mpa respectively, which makes up the drawback that the opened thermisiphon has not yet accurate boiling heat transfer relationship formulas. by means of experimental results, an opened thermisiphon waste heat recovery boiler is designed for the high temperature gases that the positi e electrode copper refining furnace exhaust, which overcomes effectively the drawback of short life, little capacity and unable to inspect that the closed steel - water thermosion has

    本文以工程上常用的38 3的開口封底為實驗元件，以水為工質，對開啟式熱管內的動態低負荷沸騰、穩態旺盛沸騰及臨界沸騰特性進行系統的可視化實驗研究，實驗壓力為0 . 02 0 . 8mpa ，實驗得出了38 3的開口封底管在工作壓力為0 . 02 0 . 8mpa和0 . 1 0 . 8mpa下的管內沸騰傳熱系數及臨界熱負荷計算關聯式，彌補了開口封底管? ?這一新型傳熱元件尚無準確的沸騰換熱關聯式的缺陷。
  10. Determination of gross heat transfer factor for the buried pipeline

    埋地輸油管道總傳熱系數的測定
  11. The heat coefficient changing of the heater and reheat ; c. the leakage test of the working substance ; d. the damage test for the heat pipes of the radiator, were taken

    分析了穩態參數，完成了：吸熱器熱負荷擾動試驗、吸熱器及回熱器換熱系數變化試驗、工質泄漏試驗、輻射器熱管損壞試驗等多個模擬實驗。
  12. The results indicate that the qualitative behavior in this process is similar to that observed in condensation of vapor at or above atmosphere pressure, the coefficient of heat transfer for condensation in tube, the coefficient of heat transfer in total increase with the increasing of heat flux density and vapor pressure. however, heat flux density and vapor pressure have a more significant effect on them

    發現水平管內低壓蒸汽冷凝過程與常壓條件下蒸汽冷凝過程相同，管內冷凝傳熱膜系數、總傳熱系數隨熱流密度、蒸汽壓力的增大而增大，但熱流密度、蒸汽壓力對低壓蒸汽冷凝有著更為顯著的影響，管外冷卻水流量對其影響並不明顯。
  13. Hard alloy die is made y taking high - quality hard alloy as its nips and fastening with steel die case. it is characterized by high hardness, good thermal conductivity, brasive coefficient and strong resistant to corrosion. it is suitable for drawn metal wire, bar and pipes. the types of dies includes rectangle, hecagon, octagon, diamond, trapezoid, basin and knob, u - shaped and half round types

    硬質合金模具採用優質合金作模芯，並用鋼質模套緊固，具有硬度高，導熱性能好，磨擦系數小，抗腐蝕性等特點，適用於拉制金屬線材，棒材，管材等，另外，模具的類型有矩型、六角型、八角型、菱型、梯型、凹型凸型、馬蹄型、半圓型等各種異形模。
  14. The investigation on the evaporation heat transfer characteristics in a horizontal micro - fin tube for r290 - 3gs mixture shows : a ) the average evaporation heat transfer coefficient of the mixture increase with the increasing of the mass flux

    R290含油混合物在水平微肋管內流動沸騰換熱特性的實驗研究表明： a ）隨著質量流率的增加，含油混合物微肋管內的沸騰平均換熱系數增加。
  15. 4. the inspection standard has been appraised. the air stagnation parameter and water stagnation parameter are enough to evaluate the quality of evacuated solar tube and the heat loss co - efficiency can be cancelled

    用空曬性能參數和悶曬性能參數來評價太陽能真空集熱管的好壞即可，取消平均熱損系數指標，空曬性能參數反映高溫能力，悶曬性能參數反映正常工作時的升溫能力。
  16. Through experimentation, we compare the heat performance of hhchp with that of a solar water heater of glass vacuum tube ( abbreviated as hgvt ). the heat performance of a solar water heater includes instantaneous efficiency, average heat efficiency and heat loss coefficient

    通過大量的實驗，對蜂窩熱管平板式太陽能熱水器和全玻璃真空管式太陽能熱水器的熱性能進行比較，包括瞬時效率、日平均效率、熱損系數等。
  17. And eight different flow orders, in accordance to two different design conditions : the total number of heat tubes or the inner diameter of the shell ; 2

    系統具備兩種自動布管功能：已知殼體內徑布管和已知換熱管根數布管。 2
  18. The heat loss of hhchp being much less than that of hgvt at night, then the heat loss coefficient of hhchp is 1. 16, while that of hgvt is 2. 24. the preceding comparisons prove that collecting heat efficiency and heat preservation performance are improved because of simultaneous application of heat pipe technology and honeycomb technology

    蜂窩熱管平板式太陽能熱水器晚上的熱損系數比真空管式太陽能熱水器小很多，為1 . 16 ，而真空管式熱水器為2 . 24 ，這進一步從實驗上證明了太陽能熱水器應用熱管和蜂窩后使得熱水器的集熱性能和保溫性能得到了提高。
  19. The study shows that the theoretical models are in good agreement with the experimental results. the correlations mentioned above can facilitate the engineering design

    研究表明，本文理論模型較好的預計了實驗結果，得到的波形管降膜蒸發器傳熱分系數的準數關聯式可以為工程設計提供參考依據。
  20. Analytical relationships are obtained for calculation of the coefficient of heat transfer for condensation in tube, the relative difference between the experimental value and the calculated value is smaller than + 15 %

    關聯出了相應的水平管內冷凝傳熱膜系數的計算式，計算值與實測值的偏差在15以內。
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