焓差 的英文怎麼說

中文拼音 [chā]
焓差 英文
enthalpy difference焓差法 enthalpy potential method
  • 焓 : 名詞[物理學] （單位質量的物質所含的全部熱能） enthalpy; total heat; heat content; sensible heat
  • 差 : 差Ⅰ名詞1 （不相同; 不相合） difference; dissimilarity 2 （差錯） mistake 3 [數學] （差數） differ...
  1. The result shows that all these system are simple eutectic, at the same time, the entropy of phase change of every system in the eutectic point is determined by using differential scanning calorimetry ( dsc ) on the basis of experimental research, through the improved one - parameter margules equation by introducing a new variable temperature, the improved equation was designed to compute solid - liquid equilibrium

    測定結果表明，這幾組體系均為簡單低共熔體系；同時利用差熱掃描量熱法（ dsc ）對上面各組體系低共熔點處的相變焓進行了測定。在實驗研究的基礎上，通過改進單參數margules方程並引入新的變量溫度，達到了將此方程用於固液平衡計算的目的。
  2. This article choosed out organic phase change materials, and, the solid - liquid - equilibrium of eleven binary system including fatty alcohol / fatty acid, n - octadecane / fatty acid, n - octadecane / fatty alcohol system were determined by cooling curve, and, t - x phase diagrams of these systems were drawn. the result shows that all these systems are simple eutectic, at the same time, the entropy of phase change of every system in the eutectic point is determined by using differential scanning calorimetry ( dsc ). and n - octadecane / fatty acid systems were calculated theoretically

    本文初選出部分有機相變貯能材料，採用步冷曲線法測定了12醇-羧酸系列、 18烷-羧酸系列、 18烷- 12醇體系共11組體系的二元固液相平衡關系，繪制了這11組體系的t - x相圖，測定結果表明，這幾組體系均為簡單低共熔體系；同時利用差熱掃描量熱法（ dsc ）對上面各組體系低共熔點處的相變焓進行了測定；並對18烷-羧酸系列進行了熱力學理論預測。
  3. Terminal equipment should have small entropy with large air volume

    末端設備的選擇盡量選取小風量大焓差的設備。
  4. Hi this paper, a common air conditioner simulation program which has been verified by experiments results before has been improved. comparing the calculation and the experiment results at the same state indicates the accuracy and reliability of the improved mathematics model

    本文首先對經過了實驗驗證的定頻空調器數學模型進行了改進，用空氣焓差法對樣機進行了實驗，提出了對空調器變頻控制器的設計建議。
  5. Then it analyses refrigeration the principle and characteristic of the automobile air - conditioner, and investigates and compares the thermodynamics theory and methods of testing of the automobile air - conditioner ' s performance, it introduces the method of the difference of enthalpy especially

    對汽車空調的製冷原理和特點進行了分析，並對現有的汽車空調性能檢測熱工原理和方法進行了比較分析，對採用的焓差法進行了重點介紹。
  6. In addition, according to the complexity of the enthalpy different laboratory and the coupling between the temperature with humidity, for normal regulations pid can not attain the good control result, the fuzzy - pid control strategy is bringed up. in this thesis, we explain the reason of selecting by the fuzzy - pid control, the fuzzy - pid control ' s principle, design, and imitate the true model to take and analyze fuzzy control system proceed stability analysis

    此外，基於焓差室內部結構的復雜性以及溫度和濕度之間存在著一定的耦合作用，目前採用的常規pid控制難以達到較好的控制效果的特點，提出了fuzzy - pid控制策略。在論文中，簡要說明了選取fuzzy - pid的原因和fuzzy - pid控制的原理、設計，以及模擬模型的求取，並對該模糊控制系統進行穩定性分析，最後採用matlab進行模擬研究，給出模擬結果和理論分析。
  7. Puts forward an improved method based on the theory in which the enthalpy difference is considered as the driving force in heat transfer under wet cooling conditions and thinks that the method can halve the testing work, require less for the experiment devices and reach higher accuracy

    認為該方法遵循了焓差是濕工況下換熱推動力的規律，試驗工作量減少一半以上，對試驗裝置的要求降低，由試驗數據整理出的公式用於表冷器熱力計算完全可以滿足空調常用范圍內的要求。
  8. This text aim at the measure and control ' s system at the experiment to equip of the air condition function and combination shanghai chijiang technology develop company new set up the enthalpy different laboratory, makes use of the visual basic 6. 0 developped the measureand control ' s system of the enthalpy different laboratory. this system adopts n ow programmable control technique that spread of boundary of domestic and international work control, the regulating speed technique by changing frequency and the rs - 485 / rs - 232 technique

    本文就針對空調性能實驗裝置中的測控系統並結合上海弛疆科技發展公司的焓差室新建工程，利用visualbasic6 . 0開發了焓差室的計算機測控系統，該系統採用了目前國內外工控界流行的可編程式控制制技術、變頻調速技術和rs - 485 rs - 232通信網路技術，是一套完善的管控一體化系統。
  9. And, this thesis return as to it ' s measure to measure the proceeding error margin the analysis, and was analyzed by error margin the enthalpy different laboratory matchs the gb / t 7725 - 1996 standard, can be used for measuring the making the cold and making the heat ' s ability, the consuming, the cop, the breeze deal under the steady state or not steady state of air condition of diagraph room, and it can also test the influence of the four channels change to the face valve and and the electronic expanding valve to the whole function of the air condition

    而且，本論文還對其測量量進行誤差分析，經誤差分析該焓差室符合gb t7725 - 1996標準，可用於測量房間空調穩態及非穩態製冷能力和制熱能力、工耗、 cop以及空調器室內機組的風量，並能測試四通換向閥、電子膨脹閥等控制元件對空調器整體性能的影響。
  10. During the discussion of the coefficient which signifies the degree of fouling and slagging, traditional coefficient is abandoned. to the heat surfaces of convection, the coefficient of enthalpy difference is advanced, and to the water - cooled walls, the coefficient of temperature difference is adopted

    對于對流受熱面，本文摒棄了傳統的灰污特徵參數，提出了用焓差灰污系數來反映積灰、結渣程度；而對於水冷壁，在背面溫差法的基礎上又引進了溫差灰污系數。
  11. The improved cyclical function method is analyzed quantitatively through using the theory of the equivalent enthalpy drop and the real - time thermal consumption analysis can done

    並應用等效焓降理論對循環函數的定量分析加以改進，進行了耗差分析。完善了循環函數法在機組局部定量計算分析的方法。
  12. Abstract : on the basis of the principle of equivalent enthalpy drop, the online calculating model on the influence of every heater end temperature difference on the unit economy is established which shows the online influence degree. therefore, it provides the theory basis for overhaul workers

    文摘:以等效焓降理論為基礎，建立了各級加熱器端差對機組經濟性影響的在線計算模型.通過該計算模型可以在線顯示每級加熱器端差對機組熱經濟性影響的程度，從而為運行檢修人員提供了理論依據，對電廠節能有一定的現實意義
  13. According to the parameter range of humid air used in humid air turbine and compressed air energy storage ( caes ) system, the applied range of thermodynamics properties of humid air is determined. 2. based on virial state equation and the corresponding - state principle, expand - corresponding - state principle is introduced to describe the virial coefficients of state equation

    對應態理論是一個普適性理論，因此對應態維里方程具有一定的外推性，計算了本文提出濕空氣熱力學參數范圍內的壓縮因子; 4 .應用本文提出的對應態維里方程，計算了濕空氣的偏差焓和偏差熵。
  14. Plastics - differential scanning calorimetry - part 3 : determination of temperature and enthalpy of melting and crystallization

    塑料差示掃描量熱法dsc第3部分：熔融和結晶溫度及熱焓的測定
  15. Later, the paper ascertains how the prominent factors influence the humidifying effect by single factor experiment and got such solutions : when other situations do n ' t change, the nozzle flux will enhance with the increase of the nozzle aperture and spraying pressure. air ' s changing quantity of enthalpy and absolute humid, valid humidified quantity, humidifying efficiency and saturation efficiency will enhance with the increase of the initial water temperature. with the enhance of the praying pressure, the valid humidified quantity and air ' s changing quantity of enthalpy will increase first and decrease later, while the humidifying efficiency will drop

    然後通過單因素試驗確定影響顯著的因素如何作用加濕效果，得到：在其他條件不變的情況下，噴嘴流量隨噴嘴孔徑和噴水壓力的升高而增大，空氣焓變量、絕對濕度差、有效加濕量、加濕效率及飽和效率隨噴水初溫的升高而提高，有效加濕量和空氣焓變量隨噴水壓力的升高先增加然後有所下降，而加濕效率隨噴水壓力的升高而下降，焓變量和絕對濕度差隨水氣比的增加而增大。
  16. Examinations of steady status and analysis of dynamic experiments have been conducted on band - tube evaporator and parallel - flow condenser using r134a refrigerant. the steady examination show that the model error was under the allowable error, the inlet mass and enthalpy disturb experiments indicate that the subsection model, be good at reflecting the change of parameters of the heat exchanger, accord with the basic principle of thermodynamics theory and the actual work status. hence, the subsection simulation model research has important benefits both on theory and engineering application

    在進行模擬試驗時，以使用r134a作製冷劑的管帶式蒸發器和平行流式冷凝器為對象，完成了穩態模擬計算、試驗和動態模擬分析，穩態計算結果和試驗數據對比表明，其誤差在允許范圍內；進口質量和焓值的擾動試驗結果表明：本文所建的區段式換熱器模擬模型，能很好的反映換熱器性能參數的動態變化，與系統熱動力學理論和冷凝器、蒸發器的實際工作過程基本一致。
  17. A new model, which is expand - corresponding - states form with 4 characteristic parameters, is built. the second and third virial coefficients of dry air, water vapor and humid air are determined

    在濕度0 w 1kg / kg （ a ） ，溫度小於573 . 15k ，壓力小於5mpa時，與ashrae用的多項式維里方程計算的偏差焓和偏差熵進行了比較，誤差很小。
  18. Then the explicit finite - volume method for the two - dimensional steady navier - stocks equations is studied. in order to prevent odd - even decoupling of the solution and oscillations near the shock waves, artificial dissipation is added. local time step, residue averaging, enthalpy damping and multi - grid method are used to accelerate the convergence during the five - step runge - kutta explicit time marching

    在計算中，採用五步runge - kutta顯式時間推進，引進人工耗散項以克服中心差分固有的奇偶不關聯性和抑制激波附近解的振蕩，應用了當地時間步長、殘值光順、焓阻尼、多重網格法等措施加速計算收斂。
  19. Standard test method for enthalpies of fusion and crystallization by differential scanning calorimetry

    用差別掃描量熱法測量熔化和結晶焓的標準試驗方法
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