翅片式的 的英文怎麼說
中文拼音 [chìpiānshìde]
翅片式的
英文
finned-
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。Modal analysis of the fin heat exchanger using fem
翅片式換熱器模態的有限元分析The operation efficiency for the improved device shows that the service life is 2 times of unimproved exchanger with a high operating stability
改造后的運行效果表明,縱向翅片管式換熱器的使用壽命是改造前的2倍,且運行平穩。Take the technical reform on longitudinal finned tubular oil / heating agent heat exchanger operated in ( superscript # ) 2 platform of chengdao oilfield center as an example, this paper analyzes 3 failure modes of this kind of heater and presents relative improvement measures
摘要以埕島油田中心二號平臺縱向翅片管式原油熱媒換熱器技術改造為例,分析了縱向翅向管式換熱器常見的3種失效形式,並指出了其相應的改進措施。Numerical model of plate - fin - evaporator heat transfer performance
翅片式蒸發器換熱性能的數學模型Under the guidance of the above method, the type of hampson heat exchanger for mixed - refrigerant j - t coolers is designed. 3
闡述了混合工質熱交換器的設計方法,對翅片管繞管式換熱器( hampson型)進行初步設計; 3A forced convection finned tube exchanger model with constant blast volume was constructed and its reliability was confirmed by the performance test
摘要建立了恆流條件下的強制對流翅片管式換熱器的結霜模型,並用實驗結果驗證了模型的可靠性。The plate - tube evaporator, the single back - fin evaporator and the box condenser. after analyzing the physical model and setting up the mathematical model according to the two - phase flow of adiabatic capillary tubes, it also numerically simulates and analyzes the different effects of main parameters on the capillary tube length. based on the heat transfer analysis and counting of thermal insulation layer, the cad system accomplishes the parametric design and drawings of the refrigerator body
該系統完成了對典型製冷裝置的換熱器部件,如板管式蒸發器、單脊翅片管式蒸發器、箱壁式冷凝器的參數化設計和繪圖;分析了絕熱型毛細管兩相流的物理模型,並建立數學模型,對絕熱型毛細管各主要參數對其長度的影響進行了數值模擬和計算分析;基於對電冰箱箱體絕熱層厚度的傳熱分析和計算,完成了整個箱體的參數化設計和繪圖工作。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。Numerical simulation of distributor configuration of plate - fin heat exchanger
板翅式換熱器導流片結構的數值模擬It tell us : the abrasive capability of fly ash ; the similar calculation of ash erosion ; the calculation of ash erosion in the tube in turn and tube out of turn ; the reason of tube abrasion for gas flue ; the influence of air parameter for fly ash erosion ; the influence of changing temperature ; the influence of the flue gas composition, etc. next, it advances the solving measure ; reduce the flue gas velocity ; reduce the concentration of fly ash ; responsible construction : replace smooth tube with spiral tube ; use the new material of abrasion ; fuel desulfurization ; reduce so3 of flue gas ; raise flue gas temperature, making it up the dew point ; use the abrasion - resistance material to resist abrasion
討論了飛灰磨損性能、管壁受飛灰沖蝕的近似計算、灰粒對順列管和錯列管的磨損計算、煙氣走廊引起對流管束的磨損機理、空氣動力參數對飛灰沖蝕的影響以及受熱面壁溫變化及煙氣成份對飛灰磨損的影響等問題。接著提出了解決的措施:降低平均煙氣流速;降低飛灰濃度;使用鰭片管、螺旋翅片管代替光管;選擇合適的結構及排列方式,減少煙氣中so3的含量;提高受熱面壁溫使之大於煙氣的露點溫度;採用抗腐蝕材料作受熱面等防腐蝕的措施。The paper mainly describes the design, optimization, simulation and the parametric drawing of air - cooled plate - finned - tube evaporator
本文主要闡述了風冷翅片管式蒸發器的設計、優化、模擬與參數化繪圖。Application of genetic algorithm to optimal design of a fin tube heat exchanger
遺傳演算法在管箱式翅片管換熱器優化設計中的應用Numerical analysis of the fin bypass of multi - stream plate - fin heat exchanger
多股流板翅式換熱器翅片旁通的數值分析Flow distribution performance of different distributor ' s c onfiguration in plate - fin heat exchanger
板翅式換熱器不同結構導流片導流性能的研究Cfd simulation of fluid flow and heat transfer in channels of plate - fin heat exchangers
板翅式換熱器翅片通道中流體流動與傳熱的計算流體力學模擬In order to study the operation characteristics of hpacdhws, distributed parameter simulation models of the fin heat exchanger and the plate heat exchanger are built up. the compressor model is founded in map - based method, and the thermodynamics expansion value model is built up in force balance method. the dynamic system model is the efficient connection of all component models by laws of equalization of mass, momentum and energy
為了研究hpacdhws的運行特性,本文利用分佈參數法分別建立了翅片管換熱器和板式換熱器的動態數學模型,採用圖形法和力平衡法分別建立了壓縮機和熱力膨脹閥的集總參數計算數學模型,並基於質量、動量和能量守恆定律等約束條件,建立了hpacdhws的動態模擬模型。分享友人