水熱系數 的英文怎麼說

中文拼音 [shuǐrèxìshǔ]
水熱系數 英文
hydrothermic coefficient
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 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. Because it well reserves the chemical stability of inorganic glass, it has the following features : low density, low thermal conductivity, vapor impermeability, no water absorption, incombustibility, protection from mould and rat eating, high mechanical strength but easy to cut and able to bear all kinds of chemical erosions except the hydrofluoric acid

    由於它完全保留了無機玻璃的化學穩定性，具有容重低導熱系數小不透濕不吸水不燃燒不霉變不受鼠嚙機械強度高卻又易加工，能耐除氟化氫以外所有的化學侵蝕。
  2. Firstly, the surface characteristic of polystyrene particle is changed from water detesting to water intimity by using special techniques and admixtures so mat the compound quality with inorganic materials is insured. secondly, the contradiction between the weight and strength is solved through optimizing the particle size and using composite fiber and the best heat conductivity is achieved under the condition that the necessary strength is met. in the research process, the author solved the problem of fiber dispersing in insulating materials so that the contraction of the material is controlled

    課題研究中，首先採用特殊的改性工藝及外加劑實現對聚苯乙烯顆粒表面的成功改性，使其表面由憎水轉化為完全親水，確保與無機材料的復合質量；其次，通過採用優化骨料級配及使用復合纖維等措施解決了保溫材料的輕質與強度的矛盾，使保溫材料在滿足必要的強度的前提下，導熱系數降至最小；並且，課題研究中成功解決了纖維在保溫材料中均勻分散的問題，達到了抑制保溫材料收縮的目的；最後，通過採用復合外加劑、合適的膠凝材料及合理的配比等措施確保該保溫材料具有良好的和易性，滿足施工的要求。
  3. It has noncombustible, non - toxic, corrosion resistance, bulk density of small, low thermal conductivity, chemical stability strong, and low moisture absorption rate, hydrophobic good, and many other advantages, is recognized superior insulating properties, thermal insulation, sound - absorbing materials with a wide range of purposes

    它具有不燃、無毒、耐腐蝕、容重小、導熱系數低、化學穩定性強、吸濕率低、憎水性好等諸多優點，是目前公認性能優越的保溫、隔熱、吸音材料，具有十分廣泛的用途。
  4. 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。
  5. Finally, by studying the heat transfer coefficient and the mechanism of mass transfer through the membrane pores, a complete mathematical model was proposed for the removal of voc from dilute aqueous solutions by vmd

    根據對傳熱系數和膜孔內傳質機理的研究，最後得到了真空膜蒸餾脫除水溶液中voc全過程的數學模型。
  6. 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。
  7. 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。
  8. Calculation method of heat transfer coefficient of air - side heat exchanger of air source heat pump water chiller heater

    空氣源熱泵冷熱水機組空氣側換熱器換熱系數的計算方法
  9. The disadvantage is that the coefficient of heat transfer is iow and the utilization factor is poor and the drying time so long. moreover because of the defect of structure, it can not be in conformity with the requirements of " gmp ". in order to overcome the shortcoming, we edsigned and developed the penetrating air stream box type drier on the basis of absorbing abroad advanced technology

    在傳統的水平流廂式乾燥器中，氣流只在物料表面流過，其缺點是傳熱系數低、熱利用率差、物料乾燥時間長且由於結構的缺陷，無法完全符合「 gmp 」藥品生產規范。為了克服以上缺點。
  10. The membrane properties were found to be dependent upon the content of styrene. the membrane physic - chemical properties compare to nafion 117 except that their chemical stability has to be further improved to make them acceptable for practical use in the proton exchange membrane fuel cell. the proton transport through the membrane follows the " liquid - like " proton conductivity mechanism y and the water balance is important for the working condition of the fuel cell

    對磺化膜的研究分析表明：膜的性能參數如離子交換容量、吸水率、水合系數、形體穩定性、導電性能、化學與熱穩定性等依賴于膜中苯乙烯含量，且接枝苯乙烯相互間的位阻效應對膜性能影響很大；膜的性能可與nafion膜相比較；質子在膜中的傳導遵循「似液體」質子傳導機理；電滲析與擴散作用使膜保持水平衡。
  11. This program can predict the wall temperature 、 internal wall heat tranfer coefficient 、 fluid temperature and entropy profile along the water wall. all of these provide an important foundation for designing this type of water wall structure to ensure the safety of the boiler operation. this hydrodynamic calculation program and the results can be used to analyze operation reliability and structure design of water wall system

    利用所開發的程序對設計的超臨界cfb進行了計算，給出不同負荷下，水冷壁出口工質溫度分佈，水冷壁受熱面不同位置處的金屬壁溫、內壁放熱系數、流體溫度焓值分佈，以及不同管子的流動壓降等結果，為分析鍋爐工作可靠性及水冷壁系統的結構設計提供了重要依據。
  12. Ftir, thermal conductivity device and smart digital rounding temperature testing device are used to test the infrared absorption spectrum, thermal conductivity and temperature changes of the title coatings, it is concluded that when hudrotalcite and magnesium sulfate is mixed by 4 to 10, the heat insulation property is the best, and the temperature changes of nizi increased by 5 approximately compared with those without hydrotalcite and magnesium sulfate compound system, but the heat conduction coefficient is hardly increased because of the different mechanism of heat insulation of the fillers, which further prove that heat insulation with fillers is based on infrared barrier

    本文使用傅里葉變換紅外光譜儀、導熱系數儀和智能數字式巡迴檢測溫度測試儀分別測試了添加具有紅外阻隔能力填料的內墻塗料的紅外吸收光譜、導熱系數和溫度變化情況，通過測試結果得出結論：水滑石和硫酸鎂在質量比為4 : 10的時候，紅外阻隔性能最優，其溫差變化較沒有添加水滑石硫酸鎂復合體系時提高5左右，而對內墻塗料的導熱系數幾乎沒有影響，這是由於填料對塗料的保溫機理不同所致，同時也進一步驗證了填料是通過紅外阻隔來達到保溫效果的。
  13. There will be a great future if we integrate solar energy utilization techniques into heat pump techniques. on the base of integrating the two techniques, the paper analyzed the art trait of heat pump water heater, the manner of integration, the essential theory ; and developed a small capacity direct expansion solar - assisted heat pump water heater, and tested its thermal performance on the condition of different weather such as sunshine, overcast sky & night. the results make clear a small capacity direct expansion solar - assisted heat pump water heater can absorb not only solar energy but heat energy in air ; it takes on favorable thermal performance, on the condition of different weather such as sunshine, overcast sky & night, coph is about between 3. 5 ~ 5. 0, eer is about between 2. 5 ~ 4. 5, these are better than traditional air source heat pump water heater and non - direct expansion solar - assisted heat pump water heater, and it takes between 2 and 3 kwh to heat 270 kg water from 20 c to 50 c, it is very great in terms of saving energy and protecting environment,

    本文在結合太陽能利用與熱泵技術的基礎上，分析研究了太陽能熱泵熱水系統的技術特點；太陽能集熱系統與熱泵系統的結合方式；直接蒸發式太陽能熱泵熱水系統的基本理論；研製出小功率直接蒸發式太陽能熱泵熱水系統樣機，並在晴天、陰天、夜晚等不同的天氣情況下對其進行了試驗，實驗結果表明：本小功率直接蒸發式太陽能熱泵熱水系統不但可以有效地吸收太陽能，還能有效地吸收空氣中的能量，具有良好的熱性能，在不同的天氣情況下，其制熱系數cop _ h大約在3 . 5 5 . 0之間，優于傳統的空氣熱泵和非直接蒸發式太陽能熱泵熱水系統：其效能比eer大約在2 . 5 4 . 5之間，將270kg水從20加熱到50隻需用電2 3度，節能及環保效果明顯。
  14. Through analysis, the theoretical solution of the condensation heat transfer coefficient of horizontal tubes with annular fins is obtained. the theoretical results are compared with the experimental ones

    本文通過理論推導，獲得了水平環肋管外冷凝表面傳熱系數的理論計算公式，然後把理論值與實驗值進行了比較。
  15. If the soil water content is gradually added from very little value, the value of water content gradient resulted from temperature gradient first is lower, then bigger and finally lower. based on the test data, a linear regression equation about temperature and water content is got. after deciding the temperature and moisture distribution of the soil samples, the problem of coupled thermal and moisture is discussed, the temperature distributions show that the heat - conducting coefficient is related to the density and water content

    由溫度場的分佈可以得到：在溫度梯度的作用下，導熱系數是變化的，而導熱系數沿長度方向的變化，使得穩態溫度場沿長度方向成非線性分佈；密實度對溫度場分佈的影響是干密度越大導熱系數越大；初始含水量對溫度場分佈的影響是含水量增大，導熱系數也增大，達到最大值后，含水量增加導熱系數反而減少，含水量對溫度場的分佈有顯著的影響。
  16. To solve the heat transfer boundary problem among the piston, liner, coolant and body parts, especially the temperature and heat transfer among the coolant, liner and body

    摘要為解決發動機活塞組缸套冷卻水機體之間傳熱邊界條件難以確定的問題，尤其是冷卻水和缸套、機體之間的流固邊界的溫度和換熱系數，將這幾個部件作為一個耦合系統進行傳熱研究。
  17. A correlation was studied out here :, for experiment with sparger 1 # ;, for experiment with sparger 2 #. sparger decreased interfacial heat transfer coefficient, total clotted liquid and steam energy transfer and weakened surface temperature vibration. it also decreased thickness of hot water layer, attenuated steam condensation and shortened the time of balance

    加裝遮流板使實驗初期階段的表面冷凝換熱系數hif降低76 93 ；減少了累計凝結量67以上；降低蒸汽流能量的傳遞，使表面溫度波動顯著降低；減少了熱水層的厚度；減緩了蒸汽凝結的劇烈程度，大大縮短了系統壓力平衡需要的時間。
  18. This experiment include many contents, in a word, that is summer condition experiment, winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment, furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test, calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ), input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running, the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe, and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season. the results are earth temperature resume fast in the first week when the heat pump runs off

    本文測試內容相當多，概括地說就是四個工況的測試，即夏季製冷工況的測試、冬季供熱工況的測試、夏?冬過渡季測試和冬?夏過渡季測試；另外在夏季工況的測試中還進行了變流量測試，在冬季工況的測試中還進行了熱平衡測試。本文對測試數據進行了處理，計算出了冬（夏）季工況埋管吸（放）熱量、熱泵空調器供熱量（製冷量） 、熱泵空調器輸入功率、埋管單位管長換熱量、供熱性能系數（製冷能效比）和平均傳熱系數等；另外，還比較了熱泵運行時地下一二層埋管進出水溫度變化情形，得出地下二層埋管換熱能力優于地下一層埋管，且換熱很穩定；並分析了過渡季地下一二層埋管溫度恢復情形，得出熱泵系統停機一周內地溫恢復特別快。
  19. The design model of seawater desalination with the tvc falling - film evaporation process was deduced. the transfer coefficient of falling - film evaporation process was analyzed in detail. and the effect of the parameter change of process steam to the operation of the device was calculated and discussed

    本文主要開展tvc壓縮蒸餾海水淡化技術研究，建立了tvc壓縮噴淋降膜蒸餾海水淡化裝置的設計模型，對降膜蒸發過程的傳熱系數進行了詳細的分析，並對工作蒸汽參數變化對裝置運行的影響進行了分析計算。
  20. The result shows that the heat transfer coefficient within the hollow fiber module with laminar flow can be calculated based on the correlation. by analyzing the equation, it was founded that the heat transfer coefficient under laminar flow is almost independent of the feed flow rate. numerical simulation of temperature distribution in hollow fiber membrane module with laminar flow was carried out

    首先採用純水為研究體系，研究分析了中空纖維管內的傳熱系數，研究表明，纖維管內的流動屬于層流狀態，其邊界層傳熱系數可用關聯式來計算，由此式看出，層流狀態下，流速對傳熱系數的影響很小。
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