熱交換率 的英文怎麼說

中文拼音 [rèjiāohuànlǜ]
熱交換率 英文
effectiveness of generator
  • 交 : Ⅰ動詞1 （把事物轉移給有關方面） hand over; give up; deliver 2 （到某一時辰或季節） reach （a cert...
  • 換 : 動詞1. （給人東西同時從他那裡取得別的東西） exchange; barter; trade 2. （變換; 更換） change 3. （兌換） exchange; cash
  • 率 : 率名詞（比值） rate; ratio; proportion
  1. A transfer model is established, which can be used to study the interaction between the land surface physical processes of inhomogeneous region and the structure of atmosphere boundary - layer over urban and rural terrains. the model has simulated surface heat flux, surface temperature, temperature profiles, height of mixture layer and so on. and the differences between urban area, suburban area and rural area have been compared. this model mainly depends on the parameters below : surface albedo, surface roughness coefficient, moisture available coefficient of soil, thermal capacity and thermal diffusion coefficient of errain, cloudage. the result shows that this model can simulate the structure and eigenvalues of atmosphere boundary layer and their changes in a day. parameters used in this model aim at beijing city, and the time is at the beginning of september. to other cities, or other time, the parameters should be adjusted accordingly. in addition, being adjusted, the model can also be used for other homogeneous and inhomogeneous terrains

    模式主要依賴于以下參數和物理量：地面反照率下墊面粗糙度土壤的可含水量下墊面的熱容量和熱擴散系數雲量等參數。結果表明，本模式能合理地模擬不同地表熱量平衡地表氣溫混合層高度湍流交換系數湍流動能位溫廓線等，以及它們的日變化。該模式所取參數主要針對北京市，時間為九月初，對于其他城市，參數應作相應的調整。
  2. In addition, the heat transfer rate and the ability of dehumidification for slit - fin - type heat exchangers are superior to the plain - fin - type coils

    此外，裂口鰭片型式的熱傳量及除濕率均高於平板鰭片型式的熱交換器。
  3. Abstract : based on the analysis of influence of tubular rib construction on heat transfer area on steel blank and heat transfer space in furnace, a t - shape support system for tubular rib is presented, by which the construction of wholly overhead furnace hearth can be realized for large and medium scale continuous reheating furnaces, making furnace gases to come into full contact with steel blank, raising space utilization ratio of furnace chamber and improving heat exchange

    文摘:分析了爐筋管結構形式對傳熱空間、坯料受熱面積的影響；提出採用t形支撐技術優化爐筋管，可實現大、中型連續加熱爐的全架空爐底，使爐氣與坯料表面充分接觸，提高爐膛空間利用率，可較大幅度提高爐膛熱交換。
  4. The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing

    蒸發器與冷凝器統稱為換熱器，換熱器是空調器與外界進行能量交換窗口，利用傳熱學原理對換熱器的效率進行分析，通過大量的試驗比較不同的蒸發器，冷凝器設計方案的優劣；比較冷凝器使用不同片型對換熱效果的影響；比較銅管與翅片的不同脹緊對熱阻的影響，通過比較得出很多有用的結論。
  5. The maximum wall heat transfer rates generally occur at the throat.

    壁的最大熱交換率通常發生在喉部處。
  6. Usually, it also causes the wall heat transfer rate to decrease somewhat in the region downstream from the point of separation.

    通常，它也會使分離點下游區間內的壁熱交換率有所減少。
  7. 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。
  8. Heat exchangers - water to water heat exchangers for district heating - test procedures for establishing the performance data ; german version en 1148 : 1998

    熱交換器.直接加熱式水水熱交換器.確定功率數據的測
  9. The machine designed for expanding tubes inserted into the fin parcel, in order to get a compact coil and thus obtain thermal exchange

    產品說明:該機是管片式熱交換器的散熱片與換熱管的漲接設備，經漲管后，使管、翅片緊密漲接為一體以達到較高的熱交換率。
  10. In this paper, the study status about freeze - up of domestic and overseas was discussed first, then based on thermodynamic theories and river ice hydraulic theories, using the observed data to calculate parameters, the freeze - up forecasting mathematical model in inner mongolia reach was established. in the model, the calculating method of heat exchanging coefficient was perfected properly, and the river characteristics was quantified for the first time. the forecasting result indicated that the model precision is high, and the freeze - up forecasting formula is all - purposed

    本文首先論述了國內外有關封河研究的現狀，然後在此基礎上針對存在問題，以熱力學理論及冰水力學理論為基礎，利用實測資料率定參數，建立了內蒙古河段封河預報數學模型，其中對熱交換系數的計算進行適當的修改，並將河道條件量化考慮進封河預報數學模型中，證明預報精確度高，且各河段預報公式具有通用性。
  11. In the project hong kong international wetland park phase ii, we take the initiative to install the first geothermal heat pump air - conditioning system and utilize the wetland around as a source of heat and a heat sink. through 468 pairs of vertical geothermal pipe heat exchanger buried in the wetland, heated water from water - cooled refrigeration plants and cool water from water source heat pump are circulated in a common condenser water loop to exchange their energy directly

    在香港國際濕地公園第二期工程項目，我們率先採用了香港首個地源熱泵空調系統，利用公園的濕地作為一個熱源及熱能儲存器，透過468對埋放在濕地的直立式水管熱交換器，將水冷式空調系統的受熱冷凝水與地泵的凍水直接交換熱能。
  12. Analyses experimental results with classical heat and mass transfer theory, and indicates that when these parameters change, the latent heat efficiency changes much more than the sensible heat efficiency

    利用經典傳熱、傳質理論對實驗結果進行了分析，指出當上述因素發生變化時，全熱交換器潛熱交換效率受到的影響大於顯熱交換效率。
  13. 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） 。
  14. The results of simulated and practical application have proved that the system is able to enhance the heat - transfer efficiency, stabilize the furnace condition, economize the energy and simplify the operating procedure

    模擬試驗與實際運行結果表明，該控制器通過對廢氣溫度變化的控制，可以在滿足工藝要求的條件下提高熱交換效率、穩定爐況、節約能源、易於實現。
  15. The latter consist of rotary heat exchangers operating at efficiencies of more than 85 percent

    後者是由運作效率大於85 %的旋轉熱交換器組成的。
  16. Through a series of experiments, studies the influence of material properties, passage dimensions and operating conditions on the cross - flow heat recovery ventilator ( cfhrv )

    摘要通過一系列實驗，研究了熱濕交換材料特性、通道長度和運行工況等因素對全熱交換器熱回收效率的影響。
  17. Single - layer model is convenient to apply but the unclear relationship between radiative and aerodynamic temperatures is still a bottleneck in this field. a new method was developed to derive reliable surface heat fluxes from radiative temperature viewed from arbitrary zenith angle. aerodynamic and radiative temperatures are connected through a so - called optimum component fraction ( ocf ) parameter - the fraction of vegetation in the field of view when the two temperatures are equivalent in oblique viewing

    該方法利用表面熱輻射方向性和顯熱通量都是源於土壤和植被溫度的貢獻這一共同點，發現在一定傾斜角度的觀測下，視場中植被與土壤的比例可以較好地反映植被和土壤與大氣進行湍流熱交換的貢獻率，所以稱該方法為最佳組分面積比法，用最佳組分面積比可以將任意角度下觀測到的輻射溫度訂正為空氣動力學溫度，經過地面和遙感數據驗證表明，用該方法計算的通量精度高於普通的單層模型。
  18. Finned tube is used to product various of efficient heat exchanger devices, especially in the remaining heat using area

    翅片管用於製造各種高效率的熱交換器，特別在余熱利用方面大顯神通。
  19. A mathematical model is developed for simulating transient performance of the turbofan engine, in which the transient heat transfer between the components and airflow, tip clearance and components efficiency changes caused by heat transfer are analyzed

    摘要以某渦扇發動機的過渡態性能模擬為研究對象，建立了過渡過程中零部件與氣流之間的不穩定熱交換、由於熱交換引起的間隙變化以及引起的部件效率變化的數學模型，並且將此模型引入面向對象的航空渦扇發動機過渡過程性能模擬程序的框架中。
  20. The calculated result shows that there are significant influences of heat transfer on the engine ' s transient performance, and the component efficiency loss caused by tip clearance changes can not be ignored

    通過計算分析，零部件與氣流之間的熱交換對發動機過渡過程性能有顯著影響；過渡過程葉尖間隙的變化引起的部件效率損失是不容忽視的。
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