inlet condition 中文意思是什麼
inlet condition
解釋
進口參數-
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。 -
3 ). the flow velocity and temperature change rapidly in hot plenum under the transient condition such as in the case of reactor scram condition. thermal stratification phenomena will be observed nearby the inlet of intermediate heat exchanger
在事故停堆后的瞬態分析中，熱鈉池的流場和溫場變化劇烈，並在中間熱交換器的入口附近形成穩定的熱分層。 -
The secondary air duct of boilers is a group of large diameter short ducts in parallel connection, having inlet air flow condition with inner positioned resistant pieces
摘要鍋爐二次風道為有內置阻力件的一組並聯大口徑短通道，其阻力系數嚴重偏小而且風門渦流強烈，從而造成二次風強烈脈動。 -
Great difference in pressure for two flow made pressure wave system and it help to extend the delay time for gas in chamber, which increases combustion effusion. second, to increase combustion effusion, the inlet temperature of air and gas should be enhanced in the range of heat releasing in chemical reaction. third, the first work condition is unburned absolutely and the second work condition is burnt in shear layer of inlet and the end of down wall zone in straight segment
對于壓力差很大的兩股氣流，所形成的壓縮波系的結構可以增加燃氣駐留時間，提高燃燒穩定性;為了提高擴散燃燒的效率，在保證能放熱的化學反應溫度范圍之內，應適當提高燃氣及空氣的來流入口溫度;燃氣噴嘴應居於燃燒室軸線上，是改進超音速燃燒室結構的一種思路。 -
In this dissertation, the experimental study of rolling condition on two - phase flow instabilities of the forced - single - tube circulation system was carried out. furthermore, based on the d - partition method and the hypothesis of drift flow model, given some conservative equation, using the perturbation method the response of the pressure drop of the tube to the inlet flow rate perturbation was analyzed both in rolling condition and in normal upright position
本文主要通過實驗對搖擺條件對單管強迫循環中汽液兩相流動不穩定性的影響，同時在d分區法的前提下，在兩相區基於漂移流模型，一定的守恆條件下，在搖擺和不搖擺工況中用線性小擾動法對實驗段的壓降對入口流速的擾動的響應進行了分析。 -
Certain discrepancy remain between the simulation results and the experiment results, not only caused by the turbulent model, but also by the simplification of the inlet boundary condition and the mesh generation. modeling gas - particles interaction flows is complex. in this thesis, gas - phase transport equations coupled with the gas - particle interaction are derived based on the dsm turbulent models to handle the interaction of momentum and kinetic energy of turbulence between the gas and particles
分離器內的固體顆粒運動採用涉及湍流擴散影響的隨機軌道模型和確定軌道模型，同時在湍流模型中加入了顆粒影響的源項，在流場計算的基礎上，模擬了不同直徑的顆粒在分離器內的運動規律及顆粒分離效率，並同理論和實驗得到的數據進行了比較。 -
Abstract : according to the cause and the damage of the feed water pump cavitation resulting from the turbine ' s load rejection, this paper analyzes the condition about presenting cavitation by calculating the largest difference of the pump inlet ' s cavitation residue in the transient process of the deacrator and proposes the measures about presenting cavitation
文摘:根據汽機甩負荷造成給水泵汽蝕的原因及危害，從計算除氧器暫態過程中給水泵入口汽蝕余量的最大降落值入手，分析防止給水泵汽蝕的條件，提出預防措施。 -
First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
首先由於它的揚程較高、流量較小，所以它的流道狹長，圓盤摩擦損失較大，效率相對較低；其次由於它的流道擴散較嚴重，易在葉片進口產生迴流和在出口產生脫流，揚程流量特性曲線易出現駝峰，在小流量工況下易產生不穩定現象；第三，由於其功率流量曲線呈現上升趨勢，在大流量區運行時電機易過載。 -
The water temperature at the reactor pressure vessel outlet is about 330 degree c whereas the water temperature at the inlet of the vessel is about 290 degree c. the cooling water is in a sub - cooled condition at such high temperature and pressure to prevent it from boiling
反應堆出水的溫度約為攝氏330度，而入水口的溫度約攝氏290度。在這高溫及高壓狀態下的冷卻水會處于欠熱狀態即冷卻水的溫度與其沸點有一段距離，因此不會沸騰。 -
The flow of every pump is inclined to be different in the same side - inlet sump and the poor flow pattern, and then the inlet condition of the pump is not good, which makes the efficiency of the pump drop and causes vibration etc. based on the theses on the hydraulic characteristic of the wenshui road pumping station in the third period shanghai disposal sewage project, the methods were discussed to improve the flow pattern of side - inlet sump, and the measures were put forward to ameliorate the flow pattern in the paper
對側向進水集水池，一般會出現同池各水泵配水不均勻，池內流態紊亂、水泵吸水條件差，繼而導致水泵效率下降、機組振動等問題。本文結合上海市污水治理三期工程汶水路泵站水力特性研究課題，探討了改善側向進水集水池水力特性的途徑與方法，提出了有效的整流、均流措施。 -
It was found that the ultra - fine powder can flow smoothly in a spouted bed with a draft tube under some sorts of design parameter and operating condition, thus a new effective method to improve fluidization quality of the ultra - fine powders is obtained ; at higher supplied gas velocity, an increase in the solid circulation rate is observed ; the extent of the distance between the nozzle and the draft tube inlet result in the promotion of the solid circulation rate ; the solid circulation rate increase with increasing the draft tube diameter or the bed mass ; the gas bypassing is nearly zero in the present work ; and the solid flow in the annulus is observed as a moving bed
結果表明：在一定的床層結構和操作條件下，超細粉可以在導向管噴動床中實現平穩流化，從而為改善超細粉的流化質量提供了一種有效的新方法；固體循環速率與噴動氣流量、導向管直徑、導向管底部與噴嘴出口間距以及床層裝填量成正比；氣體則基本上不存在「旁路」現象；環隙區中的顆粒流動表現為一移動床特徵。 -
It can make sprinkler of water feeding install on strap or on sand inlet of double disk and adjust spraying angle of sprinkler according to real condition ; the water will spray on falling sand that makes it form sand curtain ; it sprays water on hot sand equably and extends exchanging time of water and hot sand. 4
根據現場情況，加水噴頭可設在進砂皮帶上，或設在雙盤的進砂口處，調整噴頭的噴灑角度，使水噴向由下落的砂子組成的砂簾，將水盡可能預先均勻得噴灑在熱砂上，增加水與熱砂的有效熱交換時間。 -
This experiment include many contents, in a word, that is summer condition experiment, winter condition experiment > summer - winter transition condition experiment and winter - summer transition condition experiment, furthermore summer condition experiment still include flux changing experiment and winter condition experiment still include thermal balance experiment this article dealt with the data of the test, calculating out energy absorbing ( energy discharging ) of buried pipe in winter condition ( summer condition ), input power of heat pump x heat exchanging of piece buried pipe length x co - efficiency performance ? op ( energy efficiency rate ? er ) and average heat exchanging coefficient ; in additiont this article compares the inlet water temperature and outlet water temperature of underground the first layer and the second layer buried pipe when heat pump was running, the results are that the heat exchanging ability of the second layer buried pipe outgos the first layer buried pipe, and heat exchanging is more stable ; and still analyse earth temperature resuming in the transition season. the results are earth temperature resume fast in the first week when the heat pump runs off
本文測試內容相當多，概括地說就是四個工況的測試，即夏季製冷工況的測試、冬季供熱工況的測試、夏?冬過渡季測試和冬?夏過渡季測試；另外在夏季工況的測試中還進行了變流量測試，在冬季工況的測試中還進行了熱平衡測試。本文對測試數據進行了處理，計算出了冬（夏）季工況埋管吸（放）熱量、熱泵空調器供熱量（製冷量） 、熱泵空調器輸入功率、埋管單位管長換熱量、供熱性能系數（製冷能效比）和平均傳熱系數等；另外，還比較了熱泵運行時地下一二層埋管進出水溫度變化情形，得出地下二層埋管換熱能力優于地下一層埋管，且換熱很穩定；並分析了過渡季地下一二層埋管溫度恢復情形，得出熱泵系統停機一周內地溫恢復特別快。 -
A kind of non - fourier heat conduction problem under isothermal inlet condition
一類等溫進口條件下的非傅立葉導熱問題 -
As an inlet structure, the forbay is an important part of the pumping station. the pressurized forbay, close in top structure, is a kind of particular forbay in which water is pressurized. based on the integral hydraulic model test of shanghai changqiao waterwork ' s water - transport pumping station, some research on the hydraulic characteristics of the pressurized forbay has been done in the paper. the main content is listed as follows : l. the hydraulic characteristics of the pressurized forbay in different water supply combination and different pump unit combination without divertion measure, and the reason of the poor flow state. 2. the hydraulic characteristics of the pressurized forbay with diversion pier, and the reason why the flow state can be improved. 3. the experimental research on the critical air suction condition of the pressurized forbay
本文基於上海長橋自來水廠改造工程送水泵站整體水力模型試驗，對有壓前池的水力特性進行了研究，研究的主要內容如下： 1 、無導流措施的有壓前池在不同供水組合及不同機組開機組合條件下的水力特性，並分析了流態較差的原因； 2 、加設導流墩後有壓前池的水力特性，以及加設導流墩流態改善的原因; 3 、有壓前池進氣臨界條件的試驗研究； 4 、水泵進氣以後水泵性能的討論。 -
The poor flow patterns are inclined to exist in the round sump which is not designed properly and then the inlet condition of the pump is not good, which makes the efficiency of the pump unit drop and causes vibration. if there are a lot of sediments in the water flow, the problem of sediment deposition is to be solved
圓形集水池由於其結構的特殊性，設計不當易導致池內流態紊亂、水泵吸水條件差，繼而影響水泵的正常運行，導致水泵機組效率下降、振動等，如果來水含有泥沙則易產生泥沙淤積。 -
The outcome of theory and experiment proved that spraying water on the inlet of supercharger can improve the working condition ( reduce the thermal loads ), extend operation period and enhance the reliability of diesel engine
理論分析和實驗結果都證明了：在壓氣機進口噴水，可以改善增壓柴油機的工作條件，減少油耗率，提高有效效率。 -
According to the cause and the damage of the feed water pump cavitation resulting from the turbine ' s load rejection, this paper analyzes the condition about presenting cavitation by calculating the largest difference of the pump inlet ' s cavitation residue in the transient process of the deacrator and proposes the measures about presenting cavitation
摘要根據汽機甩負荷造成給水泵汽蝕的原因及危害，從計算除氧器暫態過程中給水泵入口汽蝕余量的最大降落值入手，分析防止給水泵汽蝕的條件，提出預防措施。 -
The software fluent was employed and the two - dimensional flow field and performance parameters of four hypersonic / inlet models at design and off - design condition are obtained
採用fluent軟體對所設計的進氣道設計點和非設計點二維流場和性能進行了數值模擬。 -
Compared theoretical results with experimental data, it shows that heating / cooling capacity reduces when inlet temperature of evaporator is decreasing, which is not satisfied room comfortable demand at low temperature environment in winter condition
結果表明：隨著蒸發器進風溫度的降低，系統的吸熱量和制熱量都會減少，不能滿足冬季工況低溫環境下室內舒適性的要求。
分享友人