熱動力參數 的英文怎麼說
中文拼音 [rèdònglìshēnshǔ]
熱動力參數
英文
thermodynamic parameter-
Abstract : in the research of internal combustion engine, recordingin - cylinder pressure and temperature is an essential technique to study the thermal cycle of internal combustion engine. the combustion analyzer developed in this study will give both the measurements at sampling points per crank angle or sampling cycle, calculate and show the real time parameters which decide the working process of internal combustion engine, such as pressure accelerating rate, indicateed mean effective pressure, cycle - to - cycle variation, heat release rate, etc. compared with the imported congeneric products, the analyzer has many advantages such as chinese interface, low price, easy operateing, convenience in maintainance and easy upgrading
文摘:為了測錄內燃機缸內的壓力及溫度,開發了一種內燃機燃燒分析儀.該分析儀由國產高速數據採集卡及自行開發的控制軟體組成.它不僅能精確設置每度曲軸轉角內采樣點的個數和採集循環數,而且在採集過程中能實時計算和表徵內燃機工作過程的壓力升高率、平均指示壓力、循環變動率、放熱率等參數.經實際使用以及與國外產品相比表明,此分析儀具有全中文界面、價格低、操作簡單、使用維護方便、功能便於擴充等優點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。Numerical calculative simulation could factually reflect the dynamic characteristics of the whole equipment and inner flow and diathermancy of split - stirling crycooler. through the calculation, the velocity, temperature, pressure and other detailed information of airflow in any position inner the crycooler could be gained ; the distribution of each parameter could be confirmed and reasonable explanation for the experiment result could be made
數值計算模擬能接近真實地反映分置式斯特林製冷機的整機和內部流動、傳熱的動態特性,通過計算可以得到製冷機內部任一位置的氣流流動的速度、溫度、壓力等詳細信息,確定各參數的分佈情況,並可以對實驗結果做出合理的解釋。Second, we discuss the influence of environmental referance potential temperture and thermal wind on mesoscale symmetric instability. we find the expression of disturbance stream function and criterion of symmetric instability by analytical method and conclude that change caused by environmental referance potential temperture with height and thermal wind make critical richardson number and disturbance critical half - wave length of symmetric instability larger, that is to say, they benefit the occurance of symmetric instability. third, we study nonlinear perturbation analysis of mesoscale vertical circulation and evolution equation by means of f - plane. non - hydrostatic balance and filiter model
第二,討論了環境位溫與熱成風因子對中尺度對稱不穩定的影響。運用解析的方法求出了擾動流函數的表達式和對稱不穩定的判據,發現環境參考位溫隨高度的變化與熱成風因子使得對稱不穩定臨界理查遜數及擾動的臨界半波長都變大,這有利於對稱不穩定的發生。第三,採用f平面、非靜力平衡、濾聲波模式,討論了中尺度垂直環流非線性攝動分析及演變方程。Influence of particle diameter on pyrolysis property and kinetic parameter of oil shale
顆粒粒度對油頁巖熱解特性和動力學參數的影響The subject for different process technology and surface treatment of crank takes tracking checkout for its internal stress, analyses relation of jumping measurement, deformation measurement, recovery measurement and stress change, finds the reason and usual law of jumping overproof of crank. through cold pressure alignment, hot pressure alignment, support aged alignment and so on methods for 42crmo steel crank, the subject checks change of stress in the process of alignment and change of tissue and property after alignment for crank, and gives comprehensive evaluation for every alignment technology, then give safe and feasible technology parameter
本課題主要是對不同加工工藝及不同表面處理過程的曲軸,對其內應力進行跟蹤檢測,分析各工藝過程中跳動量、變形量、恢復量與應力改變的關系,找出曲軸跳動量超差的原因和一般規律。通過對42crmo鋼曲軸進行「常溫壓力校直」 、 「熱壓力校直」 、 「支撐時效校直」等方法的校直,檢測校直過程中曲軸應力的變化及校直后組織和性能的改變,進而對各校直工藝進行綜合評價,給出安全可行的工藝參數。In addition, the dynamic equation about ammonia fertilizer affected by interaction of water and temperature is gotten. 3. the phenomenon about water vaporization - induced ammonia volatilizing is verified, and it is studied quantitatively
此外,通過回歸分析還建立了表徵施入土壤中尿素轉化為銨態氮的動力學型方程,其參數均與土壤水分、溫度有關,並得到這些參數的水熱耦合效應關系式。In this paper, the sensibility analysis of the factors affecting the temperature in well bore is relatively systematically made by using a large number of the data calculated with the borehole flow and heat transfer 3 ? d numerical model proposed by the author. the study shows that the thermophysical parameters of the drilling fluid and formation, etc. and the entrance temperature and circulating capacity, etc. of drilling fluid have a greater influence on the temperature in well bore. therefore, accurately mastering the thermophysical parameter values of penetrated formation and drilling fluid in well bore, considering the influence of the temperature and pressure on thermophysical parameters and accurately measuring such parameters as entrance temperature and discharge capacity of drilling fluid, etc. are of utmost importance for accurately simulating the temperature in well bore
利用由作者提出的井內流動和傳熱的三維數值模型計算所得的大量數據,文章對影響井內溫度的諸多因素進行了較系統的敏感性分析,研究表明:鉆井液和地層等的熱物理參數以及鉆井液的入口溫度、循環排量等對井內溫度有較大影響,因此,準確掌握所鉆地區地層和井內鉆井液的熱物理參數值,考慮溫度壓力對熱物理參數的影響,準確測量鉆井液的入口溫度、排量等參數值,對于井內溫度的準確模擬至關重要。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。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。The use of traditional ways such as the trial - and - error and empirical method to define the process windows of the difficult - to - deforming materials can not keep pace with the rapid development of modern industry
本構關系是制定其塑性加工工藝的主要依據之一,也是利用動態材料模擬方法和剛塑性有限元法合理確定這類難變形材料的熱力參數范圍的前提條件。According to the theory of engineering thermodynamics and phase change, heat - transfer process of the special working fluid heat - pipe stove is analyzed. some hypotheses are postulated and with the help of equation of mass - conservation, energy - conservation, the dynamic concentrative parameter model is built, the change of each parameter is prescribed at any stage from starting to stopping. with the thermodynamic calculation of burnable process, the parameter of device, such as heat - transfer coefficient / thermal efficiency etc, are achieved under steady state ; based on theoretic calculation, observing the actual running circumstance of the heating stove in person, with some performance comparison between the new and the old, the high efficiency and reliability of heat - pipe stove is proved, the project which expend it in the oil - filed is feasible
對充入該工質的熱管加熱爐,本文根據工程熱力學和相變傳熱學及相關知識,對其進行了傳熱分析,經過適當假設,運用質量守恆和能量守恆定律,建立了裝置動態集中參數模型,描述了加熱爐從開機到穩定運行這一動態過程各參數的變化情況,同時對燃燒過程也進行了熱力計算,最終得到了穩態工況下裝置的換熱系數、熱效率等熱力參數;在理論計算的基礎上,親赴現場觀察該爐的實際運行情況,通過與原有的加熱爐的各項性能進行對比,最終證明新爐的高效性和可靠性,為其在油田中推廣的可行性提供了依據。The software has six modules : thermo physical property of working medium, design of heat pipe lithium bromide - water generator driven by waste heat, system design of single or double lithium bromide - water refrigerators with heat pipe, performance simulation of single or double lithium bromide - water refrigerator with heat pipe in varying duty, thermodynamic parameters of each state, thermodynamics analyses. the software makes the design more convenient and correct. it can be used to compare the design of multiparameter and select deferent design methods according to different needs
考慮到這種情況,本文在查閱相關文獻的基礎上,開發了煙氣驅動的熱管廢熱溴化鋰製冷機的系統設計和變工況性能模擬軟體,該軟體分為6大模塊:工質熱物性模塊、熱管溴化鋰廢熱發生器設計模塊、單/雙效熱管廢熱溴化鋰製冷機系統設計模塊、單/雙效熱管廢熱溴化鋰製冷機變工況性能模擬模塊、各狀態點熱力參數模塊和熱力學分析模塊。The child system of calculation analysis includes the optimization design of total parameters of solid rocket motor, the calculation of internal trajectory, the calculation of thermodynamic parameters, the limited element analysis for stress of motor shell, the calculation of structure characteristic parameters, the calculation of particle external trajectory, the design and calculation of the ignition device
計算分析子系統包括火箭發動機總體優化設計、內彈道計算、熱力參數計算、發動機殼體應力有限元分析、結構特徵值計算、質點外彈道計算、點火裝置的設計計算。Concentrative parameter model and non - homogeneous model of dynamic distribution parameter are respectively adopted in the compressor and the heat exchangers. a dynamic concentrative parameter model is adopted in the thermostatic expansion valve on the basis of the analysis of the characteristics of enclosure structure, the dynamic mathematics model is established through the simplification of boundary condition
壓縮機採用集中參數模型;換熱器採用動態分佈參數的分相模型;熱力膨脹閥採用集中參數動態模型;通過對冷庫維護結構的特點分析,採用邊界條件簡化處理的方法,建立相應的動態參數數學模型。Based on the mass and energy balances and the thermodynamics and kinetics of chemical reaction, a dynamic model in conjunction with relative operation parameters is derived
基於物料平衡和熱平衡以及化學反應的熱、動力學,結合相關的參數建立了電弧爐冶煉過程的動態模型。The main work and the conclusion are as follows : based on the parameter of the 10kw space solar power system designed by our own country. built up the dynamic math model of the heater, radiator, thimble reheat, single turbine. and then applied the acsl language to compiled the corresponding simulation program, analyzed the steady state parameter
本文的主要工作和結論如下:在我國自行研製的10kw空間熱動力電源系統設計方案的幾何參數和熱力學參數的基礎上,建立了包括吸熱器、輻射器、管式回熱器、單級壓氣機在內的系統動態數學模型,並應用acsl語言編制了相應的模擬程序。The physicochemical characterization was made in depth using various techniques for some resin matrices of advanced composites, such as epoxy resin matrix, phenolic resin matrix and bismaleimide resin. these techniques include infrared spectroscopy ( ir ), nuclear magnetic resonance spectroscopy ( nmr ), mass spectroscopy ( ms ), liquid chromatography ( lc ), thermal analysis ( ta ) and other techniques. the composition, structure, molecular weight, reactivity, reaction temperature and other properties related to performance of resin matrix were studied
本論文採用紅外光譜、核磁共振波譜、質譜、液相色譜、熱分析等分析技術對實際使用的環氧樹脂、酚醛樹脂以及改性雙馬來酰亞胺樹脂等先進復合材料樹脂基體進行了物理化學表徵,尤其是對與樹脂基體性能密切相關的化學組成與結構、分子量、活性與反應溫度、固化度等進行了表徵;提出了樹脂基體的固化反應機理,獲得了樹脂基體的固化反應動力學參數;對改性雙馬來酰亞胺樹脂的熱分解機理進行了分析,並得到了其熱分解動力學數據。Liquid rocket engine is a thermal kinetic system, it runs under extremely strict physical conditions, such as high temperature, high pressure, strong erosion, high density of energy release, strong components parameters coupling. it is very difficult to establish accurate dynamic mathematical model
液體火箭發動機是一種在極端的物理條件(如高溫、高壓、強腐蝕和高密度的能量釋放等)下運行的復雜的流體-熱動力系統,部件參數強烈耦合,很難建立精確的動態數學模型。Based on the theory of thermodynamic of refrigeration system, i. e., the viewpoint of dynamic, distributed parameters and parameters quantitatively coupled, and with the application of microelement method, this thesis is contains a theoretical and experimental research on the structural characteristics and performance of small - scale cold storage. main contents of this thesis are as what follows : first, the key component sub - models for a small - scale cold storage are developed
本文運用「製冷系統熱動力學」理論,以「動態」 、 「分佈參數」和「參數間定量耦合」的觀點,用「微元」的方法,對型號d045 ? 35 110gfd蒸發器、型號lcu - 32fj冷凝機組和型號tex2 - 2 . 3熱力膨脹閥等主要部件組成的小型冷庫的結構特點和運行性能進行了理論和實驗研究。分享友人