fourth evaporator 中文意思是什麼
fourth evaporator
解釋
第四蒸發器- fourth : n 每月的四日；【音樂】四度音程，四度和音，第四音； 〈pl 〉 【商業】四級品。 a fourth part 四分之...
- evaporator : n. 蒸發器。
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Second, the starting and stopping behaviors under disturbed condition are analyzed and calculated by using the dynamic concentrative parameter model, which gives some advice to better prescribe refrigeration system and set theoretic foundation for carrying out automatic control of refrigeration system. third, the normal running process is analyzed and calculated by means of rational matching theory, which gives some advice on how to better understand the parameter change under steady state and the affection of inlet - parameter on evaporator. fourth, the simulation software with dynamic characteristic is designed, which can be applied to calculate thernio - parameter of cryogen, air humidity and frost thickness under different initial and boundary conditions, and to carry out dynamic simulation under conditions of dryness, wetness and frostiness, at the same time, to achieve detection and simulation at any stage from starting to stopping
本文的主要內容如下： 1 ）對翅片管蒸發器結構特點進行分析，選取適當的微元控制體，就干、濕和霜工況下對每個微元分別進行傳熱傳質分析，基於經驗關系式確定霜的有關參數，對于霜工況下的霜生長建立模型，經適當假設，運用質量守恆、能量守恆和動量守恆方程建立適合動態模擬的蒸發器數學模型，為系統模擬奠定基礎； 2 ）對蒸發在大擾動下的開、停機過程，運用動態集中參數模型進行分析和計算，為更好地描述製冷系統運行的全過程奠定基礎，同時也為製冷系統實現自動控制提供一定的理論基礎； 3 ）對蒸發器正常運行過程，運用動態分佈參數和參數間定量耦合的觀點來分析和計算，為更好地了解穩態工況下各點參數的變化情況及各入口參數對蒸發器動態特性的影響即蒸發器性能對各參數變化的敏感性； 4 ）編寫翅片管蒸發器動態特性模擬計算程序，可以計算不同邊界條件和初始條件下的製冷劑熱力參數、空氣溫濕度和霜厚度分佈場，實現對翅片管蒸發器在干、濕和霜工況下的動態模擬。 -
The fourth chapter to the seventh chapter selected and improved fully hermetic rotary compressor mathematic models, condenser and evaporator distributive parameter models, and refrigerant charge inventory models, consulted domestic excellent enterprise " s product and components, and made relevant simulation programs. the eighth chapter used above component models and simulation programs to simulate kfr - hi / lw air - conditioners made in some enterprise, and compared predictions and experimental results
在選用和修改全封閉壓縮機數學模型、冷凝器、蒸發器分佈參數模型和製冷劑充灌量模型並編制了相應模擬程序后，利用以上各部件模型和模擬程序，對某公司生產的kfr - hi lw型分體落地式家用空調器進行模擬，並與實驗結果進行了比較。
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