phase equilibrium 中文意思是什麼

phase equilibrium 解釋
相平衡
  • phase : n 1 形勢,局面,狀態;階級。2 方面,側面。3 【天文學】(月等的)變相,盈虧;【物、天】相,周相,...
  • equilibrium : n. 1. 平衡,均衡,均勢,相稱。2. (心情的)平靜。3. (判斷的)不偏不倚。
  1. Heat capacity in phase equilibrium

    相平衡熱容
  2. The azeotropic distillation of the system acetic acid - water - azeotropic agent ( isopropyl acetate and butyl acetate ) is simulated. due to the non - ideal behavior, nrtl - hoc and uniquac - hoc model is used to depict vapor - liquid phase equilibrium behavior of this system. concerning the liquid in the decanter, the stability is checked by tangent plane stability analysis, and the initialization of phase splitting calculation is produced. a good estimate of the phase fration is gotten by successive substitution with newton ' s method, and every component of two phase is gotten by mass equilibrium equation. finally, the solution of this equation is produced with successive substitution calcultion. the naphtali - sandholm method is used to simulation of azeotropic distillation. by virtue of this combined calculation method, the simulation is begun with operational data as basical data. the results of simulation accord with the operating data, which proved that the combined calculation method is credible

    該體系具有高度非理想性,氣液相平衡模型採用nrtl - hoc和uniquac - hoc模型,採用切平面判據法對進入分層器中的液相進行液相穩定性測試,提供液液相分離計算的初值,再結合牛頓拉夫森迭代法運算求得相分割系數,根據物料衡算求出各相組成,循環迭代可求得分層各組分數據,共沸精餾模擬計算採用那夫塔列-山德荷姆全變量迭代演算法。
  3. With the thermodynamic theories and techniques, it is relatively easy to determine the phase equilibrium data with enough accuracy, however there still exist much more difficulties in crystallization kinetics study even for a simple binary system. that is the reason that nucleation and crystal growth rate are generally represented in form of the empirical expressions. the crystallization kinetic is important for crystallizer design, process control and optimization, and it is strongly depended upon the accurate characterization of process information concerning with multiphase flows and the further disclose of its mechanisms with suitable mathematical models

    熱力學理論和方法已足以獲得準確的相平衡關系;然而即使對于簡單的二元物系的結晶過程,晶核形成和晶體生長動力學的研究仍面臨許多困難,通常採用經驗模型表述,而動力學參數的準確性和可靠性是結晶器放大設計、過程式控制制與優化的關鍵,因此多相流信息的準確表徵、結晶機理的進一步揭示及建立起與之相適應的數學模型有著十分重要的學術研究和實際應用價值。
  4. However, only limited data have been available for hydrogen isotope system, so there is not a rigorous thermodynamics model which can accurately predict thermodynamic properties and phase equilibrium of hydrogen fluid by now

    然而,由於氫同位素物系的一些特殊性,使氫溶液的汽液平衡數據很難測得,到目前為止,還沒有一個可以準確描述氫溶液的熱力學模型。
  5. According to the features of naphthenic base oil ( i. e., high nitrogen and low sulfur content ) and based upon theoretical analysis of the h2s concentration needed for phase equilibrium of nickel sulfide and tungsten sulfide in hydrogen, the most economic quantity of sulfiding agent injected into the reactor for supplement of sulfur in lube oil hydrogenation catalysts was obtained

    摘要針對環烷基油高氮、低硫的特點,通過對硫化鎢和硫化鎳在氫氣中相平衡態所需硫化氫濃度的理論分析,對反應器入口所需補硫量作了詳細的闡述,得出了最經濟的補充注硫量。
  6. This paper has studied the dissolution and phase transformation of chloropinnoite in aqueous solution using phase equilibrium and kinetics method

    本文利用相平衡和動力學方法對氯柱硼鎂石在水溶液中的溶解相轉化進行了較系統研究。
  7. Some of problems in distillation technology process are studied using excel, matlab and chemcad. they are distillation with simple balance, determining accurately the position of sensitive plates in distillation tower, distillation of multi - components, and crude distillation at steady state. this paper shows how to solve bubble & dew points for binary ideal system and five cases of flash by means of excel and analizes reducing pressure affects on phase equilibrium as an example of distillation and separation ethyl benzene & phenyl ethylene below atmosphere

    基於excel 、 matlab和chemcad軟體,對蒸餾過程中的簡單平衡蒸餾、精餾塔靈敏板位置確定方法、多組分精餾等進行了數值計算與定量研究,對原油煉制常減壓塔進行了初步的穩態模擬,實現了用excel求解雙組分理想體系的泡、露點問題和閃蒸計算的五種情況,並分析了減壓對其相平衡的影響。
  8. A concise physical picture is furnished by chemical potential curve about the law of phase equilibrium, saturated vapour pressure of curved liquid surface, evaporation and condensation etc

    通過曲線描述,提供了關于相平衡、彎曲液面飽和蒸氣壓以及蒸發、凝結等規律比較直觀的物理圖像。
  9. The other has two metal - insulator - semiconductor ( ms ) contacts with lower leakage current ( less than 4 pa, 300v ) and better energy resolution ( about 10 % fwhm for 241am 59. 5kev line ) and poor working stability. in theoretical studies, the analysis on the phase equilibrium in the vapor growth of cdse single crystals shows that the stoichiometry of cdse crystals can be controlled effectively by controlling the stoichiometry of starting materials and the vapor growth temperature. besides, the investigation of the transporting properties of charge carries in cdse detectors indicates that the noise in energy spectrum detected by using the detectors with msm structure is caused by the hole injection, which is induced by electron injection and the light injection

    本文把cdse單晶體的生長、單晶體的成分、單晶體的性能以及單晶體在室溫核輻射探測器中表現出來的性能結合起來進行了比較系統的研究;採用垂直無籽晶氣相提拉法生長出了電阻率為10 cm量級、尺寸為中10mm 30mm的單晶體;制備出了能量解析度達10 ( fwhm ) (對~ ( 241 ) am59 . 5kev譜線而言)的cdse室溫核輻射探測器,取得了較好的研究結果。
  10. For the high pressure phase equilibrium system composed of co2, h2o, cacl2, etc., co2 is treated as super critical fluid truly, the volume of which is estimated by bwr state equation suitable for super critical fluid

    考慮了酸液溶蝕的碳酸鹽以及酸巖反應生成的二氧化碳對人工裂縫體積的影響,針對裂縫內由二氧化碳、水、氯化鈣等物質組成的高壓相平衡體系,將二氧化碳真實地處理為超臨界狀態,其體積由適用於超臨界流體的bwr狀態方程求解。
  11. Based on the calculated result, according to the principle of mass conservation, energy conservation and the phase equilibrium, a thermodynamics model of the system was set up

    並在設計計算的無泵溴化鋰吸收式空調器的基礎上,根據製冷系統內部的能量平衡,質量平衡,以及相平衡,建立了無泵溴化鋰吸收式空調器的熱力學系統模型。
  12. The system is described mathematically on the basis of mass balance, energy balance, and phase equilibrium. the model of process simulation of the aht system is set up. the solution system of mathematical model of absorption cycles was put forward

    對吸收式熱變換器( aht )的基本原理和行為特徵在系統層次上進行了分析,進而根據質量平衡、能量平衡和相平衡方程對系統進行數學表述,建立了系統的過程模擬模型,並提出了aht吸收循環數學模型的求解機制。
  13. The characteristics of this new cycle at different working conditions were calculated and analyzed carefully based on mass, heat, and phase equilibrium. besides, the characteristics of a traditional single - effect absorption refrigeration cycle under the same condition are also calculated for comparison

    在理論上,本文依據新循環內部的熱平衡、質量平衡及相平衡,對循環進行了熱力分析,研究了變工況下循環的各種性能的變化情況,並深入分析了變化原因,結果發現,冷凝蒸發器中兩股流體的熱容量是否匹配是決定cop值的關鍵因素。
  14. Phase equilibrium of phenylhydrazine adsorption on macroporous adsorbing resins

    大孔樹脂吸附苯肼的靜態相平衡研究
  15. Ultrasound is a kind of high frequency mechanical wave which can effectively improve mass transfer and heat transfer, change physical - chemistry phase equilibrium, fasten chemistry reaction rate

    超聲波是一種高頻機械波,利用超聲振動、超聲空化能有效強化傳質、傳熱,改變物理化學相平衡,加快化學反應速率。
  16. In this paper, the influence of ultrasound on the solid - liquid extraction and the adsorption phase equilibrium were investigated by using the effective component - geniposide of the mature gardenia fruit as the experimental object

    本文以梔子果實中有效成分梔子甙為實驗對象,研究超聲波對固-液浸取、吸附相平衡、傳質過程的影響。
  17. The result of the experiment indicated that the capability of adsorption decrease with ultrasound intensity, while the rate of the extraction and adsorptin increase. the model resulst also showed that the theoretical value of the homogeneous model considering intrapartical diffusion and outside - surface diffusion with freundlich phase equilibrium equation are agfeeable with the experimental value

    在吸附實驗中,測定了不同強度超聲場下梔子甙與1300樹脂上吸附平衡曲線、靜態吸附動力學曲線、動態穿透曲線。實驗結果表明,吸附容量隨著超聲波強度的增加而減少,而浸取、吸附速率隨著超聲波強度的增加而增大。
  18. It is put forwared that the phase equilibrium of liquid - vapour and the transfer of matter mass can be analysed by applying the chemical potential curve

    摘要提出應用化學勢與壓強的關系曲線分析曲面氣液兩相的相平衡及物質質量轉移問題的方法。
  19. The following results are achieved : ( 1 ) in accordance with the empirical electron theory of solids and molecules, considering the number of covalent bond pairs on the strongest bond in a segregation structure na, the elements for matrix - strengthening can be chosen. ( 2 ) on the basis of the available phase - equilibrium thermodynamics calculation of alloy system and phase diagrams, which have been worked out, the contents of alloy elements can be identified with reference to the types, quantity and phase - transformation of carbides. ( 3 ) both the values relating to toughness ( including bending strength, yield strength, impact value of unnotched samples ) and hardness of new dm9 die steel are higher than those of crl2mov die steel

    結果得出: ( 1 )根據固體與分子經驗電子理論,利用偏聚結構單元的最強共價鍵上的共用電子對數n _ a ,可以選擇工模具鋼基體相的強化元素; ( 2 )根據合金系相平衡熱力學計算及已有的相圖,可以碳化物類型、數量及其相變確定合金元素含量; ( 3 )新型dm9鋼在強韌性(抗彎強度、屈服強度、無缺口沖擊值)和硬度方面均高於cr12mov鋼; ( 4 )以dm9鋼與6crw2si 、 7cr2wmovsi ( dm7 ) 、 h13和cr12mov四種模具鋼的實驗比較,進一步驗證了上述冷作模具鋼合金設計方案是合適的。
  20. The research about gas hydrates phase equilibrium, thermodynamic properties, methods of predicting their formation and structures has been fairly fruitful, yet it was later to study about the process of their decomposition

    目前,關於水合物的相平衡理論、熱力學性質、生成預測方法及其結構的研究已經相當深入;而關于其分解過程的研究相對來說起步較晚。
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