比焓 的英文怎麼說

中文拼音 [bǐ]
比焓 英文
specific enthalpy
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 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
  1. The change in enthalpy may be expressed in terms of the specific heats of the phases and the temperature and pressure changes.

    熱焓的變化可以表達為各相比熱和溫度壓力的變化。
  2. With the desigh of vav air conditioning system presents the energy saving technology of natural cooling by cooling air conditioned rooms with outdoor air of low temperature and low enthalpy

    摘要結合變風量空氣處理系統的設計，介紹了利用室外低溫低比焓空氣供冷的自然冷卻節能技術。
  3. 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。
  4. Touch on developing large - flow and high - pressure ratio impressor and large - enthalpy drop turbine, reducing harmful emission, solving the major problems of high - temperature blade material, cooling, protective coating and single - grain blade casting, and comfirm some important manufacturing techniques

    涉及了開發大流量高壓比壓氣機、大焓降渦輪，降低有害排放量，解決高溫葉片的材料、冷卻、保護塗層及單晶葉片鑄造等主要問題，並確認了一些關鍵的製造技術。
  5. On the deep foundation that studies and understands thermaldynamic system of steam power plant, this text is to compare analytic theories and computation method constantly used at present on the economy of thermaldynamic system of steam power plant, calculate the influences on thermal economy with theory of equivalent enthalpy drop when high pressure heater is into stoppage, prove influences degree on thermal economy when the composition of heater stoppage is diffrent, define regenerator rate and offer theoretical direction for heater stoppage

    本文在對火力發電廠熱力系統深入學習、掌握的基礎上，對目前幾種常用的火力發電廠熱力系統經濟性分析理論和計算方法進行了比較，以等效焓降理論對高壓加熱器停運時熱經濟性的影響進行了計算，說明了高壓加熱器各種停運組合對熱經濟性的影響程度;提出了加熱器回熱率概念，從而為高壓加熱器切除提供了理論指導。
  6. 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。
  7. The working parameters ( specific enthalpy, entropy, flux of working fluid, reynolds number, etc. ), the configuration parameters of the main components, such as steam turbine - generator group, evaporator and ehd condenser and system efficiency were calculated on the base of thermodynamics theory

    文中以熱力學理論為基礎，計算了低溫余熱發電系統的運行參數（比焓、熵、工質流量、雷諾數、管路壓力等）和各主要組件如汽輪機-發電機組、蒸發器和ehd冷凝器的結構參數，並計算了系統的效率。
  8. 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。
  9. Because of the small conductivity factor of organic phase change materials, all kinds of copper grids, gas sio2 and organic bentonite were added to organic phase change materials in order to heighten its conductivity factor. the conductivity factors were maesured by using time - temperature curve and comparison curve, and, the conductivity factor curves were drawn. at the same time, the entropy of phase change of every system was determined by using dsc

    針對有機相變貯能材料導熱系數小的缺點，採取在其中添加各種形狀的銅網格、氣相sio _ 2和有機膨潤土的方法來改善體系的導熱性能，利用時間-溫度曲線法和比較法兩種方法測定體系的導熱系數，並且繪制了體系導熱系數的變化曲線；同時利用dsc對上面部分體系的相變焓進行了測定。
  10. 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。
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