熱氣集合體 的英文怎麼說
中文拼音 [rèqìjígětǐ]
熱氣集合體
英文
hot-aircouplection-
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。Gas - fired central heating boilers - specific requirements for the domestic hot water operation of combination boilers of nominal heat input not exceeding 70 kw
裝有常壓送風噴嘴的燃氣集中供暖鍋爐.公稱熱輸入量不超過70kw的混合鍋爐的家庭熱水供暖的具體要求The pattern of shoujinliao ' s climatic design : first, it talks about shoujinliao ' s ventilation, analyses every stale belong to each compose of space appeared in shoujinliao. sum up that ventilation system is made up by draught and wind route, by showing data and photograph, then, it talks about shoujinliao ' s methods of sunshade and heat insulation, that is, sunshade of concentrated, sunshade of small yard, sunshade of eaves, sunshade of balcony. heat insulation of outward wall, clay tiled roof and composition neatly
著重分析手巾寮結合氣候的模式，首先談及手巾寮建築通風經驗，深入分析各種空間高低組合情況下手巾寮的通風情況，藉助調研資料和實景照片對通風系統中通風口和風道的合理安排進行介紹；其次是手巾寮其他氣候經驗，如遮陽方式主要體現在連房密集遮陽、小天井遮陽、檐下灰空間遮陽、陽臺遮陽等，又如隔熱途徑有墻體隔熱、灰泥苫背瓦屋面隔熱及規整形隔熱，再如綠化水體的降溫措施，上升到環境高度看待建築，探討手巾寮組織天井綠化、利用街巷綠化、配合周邊水域的建造經驗。Taking ningxia - inner mongolia reach of yellow river as a study case, a ice regime forecast data warehouse is established for the datamining concerned on the basis of the analysis on the ice regime changing law and its influencing factor of the reach, and then the conceptual mathematic model and artificial neural network model for the parameter calibration of ice regime forecast are built up with gis in combination of the relevant empirical forecast models based on the principles of the hydrological flow muting, thermodynamics and ice hydraulics etc., with which the design and development of the decision support system for the ice regime forecast with the integrated functions of information inquiry, model parameter calibration, temperature forecast and ice regime forecast are preliminarily discussed
摘要以黃河寧蒙河段為例，在對河段歷史冰情變化規律及其影響因素分析的基礎上，建立冰情預報數據庫，進行數據挖掘，並以地理信息系統（ gis ）為平臺，以水文學流量演算、熱力學、冰水力學等原理為基礎，結合相關經驗預報模型，建立用實測資料進行參數率定的冰情預報概念性數學模型和人工神經網路模型，初步探討了集信息查詢、模型參數率定、氣溫預報、冰情預報等功能為一體的冰情預報決策支持系統的設計與開發。Based on the economical district heating meteorological model and its index system established by meteorology - heating experiment data in the past, and relied on the routine meteorological operational system, and access2000 data base system, beijing economical district heating meteorological forecast system is developed through using mixing programming technology of fortran and vc computer language that is put into application in the beijing special meteorological observatory and beijing district heating group company during the heating period of 2002 - 2003, offering the basis for real time heat dispatching
摘要以氣象熱力試驗數據建立的供熱氣象節能模式、指標體系為依據，依託常規氣象業務系統，選取access2000作為數據庫系統，利用fortran和vc計算機語言的混合編程技術，開發了北京城市集中供熱節能氣象預報系統，並於2002 ~ 2003年採暖季在北京市專業氣象臺和北京市熱力集團公司投入應用，為實時供熱調度提供依據。The length should be added if the cost is n ' t increased and the installation is convenient, the diameter should be chose by the local weather condition and the using requirement ; the gas pressure should be not higher than 5 x 10 - 2pa and the emissivity should be less than 0. 1, the spring should be small and narrow in order to decrease the heat loss, the gas absorbed getter should not be too many as long as it can absorb the residual gas and keep the vacuum degree
在不影響安裝和增加成本的情況下，應適當增加太陽能真空集熱管的長度;根據當地的氣候條件和使用要求來綜合考慮選擇直徑;國標規定的真空度必須達到5x10 』 zpa ，發射率小於0 . 1是合理的;彈簧卡子不要選用很寬、很大的尺寸，盡量減少接觸熱損;吸氣劑並非越多越好，只要能夠吸收殘余氣體，保證一定的真空度即可。Heat supply heating and hot water supply is provided with : hybrid solar system on the base of solar collectors water - air, area - 12 square meter in the southern wall of a greenhouse ; passive solar system combined with the northern wall made of hollow blocks 0, 2 m wide and filled in with hae of porous material
該溫室通過以下方式提供熱水和供暖：南墻使用面積為12平方米的綜合太陽能系統，該系統使用太陽能收集器制給空氣和水體加熱北墻使用被動太陽能系統，即墻體由每塊0 . 2米寬的空心磚砌成，磚內填充多孔蓄熱材料。In order to study the regeneration mechanism of dpf in detail, we still need a mathematical model of the channel unit, which present temperature field and the soot reaction rate of the channel. finally, it points out the influences of various factors to the regeneration process by computing the numerical solution of model under different boundary conditions and geometry parameters, such as the initial temperature, the gas flow rate, the oxygen concentration, the sediment quantity and the wall thickness of the filters, and so on. in this way, the paper provides theoretical guidance for optimization design of the dpf
首先研究了干凈壁流式過濾體的加熱特性，然後在加熱和燃燒理論的基礎上建立了微粒捕集器再生過程的數學模型，並對模型進行了數值計算，得到了捕集器內部的三維溫度場分佈以及溫度梯度分佈，結果與實驗值吻合較好，驗證了模型的正確性;為了詳細的研究微粒捕集器的再生機理，建立了孔道單元數學模型，得到了孔道內的溫度場分佈和微粒反應速率分佈;最後，通過求解模型在不同邊界條件和不同幾何參數下的數值解，分析了各種因素對再生過程的影響，如過濾體初始溫度、過濾體內氣流的流動速率、氧濃度、微粒沉積量以及過濾體壁面厚度，為微粒捕集器的優化設計提供理論指導。分享友人