熱力循環法 的英文怎麼說
中文拼音 [rèlìxúnhuánfǎ]
熱力循環法
英文
thermal and mechanical cycling method- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 循 : 循動詞(遵守; 依照; 沿襲) follow; abide by
- 環 : Ⅰ名詞1 (環子) ring; hoop 2 (環節) link 3 (姓氏) a surname Ⅱ動詞(圍繞) surround; encircle;...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
- 熱力 : [機械工程] heating power
- 循環 : circulate; circle; round; repeat; loop; period; recurrence; cycling; circulating; mixing; circula...
-
The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological
分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象,依據astm標準及國際通用文物保護研究方法與評估準則相結合,通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定,及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響,對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。The ejected coolant interacts with the external flow near the endwall and generates aerodynamic and thermodynamic losses in the process. this reduces turbine stage efficiency and together with the consumption of cooling air is detrimental to the overall cycle efficiency
但這種方法中噴射的冷空氣與端壁附近的外流場相互作用產生氣動力和熱動力損失,並且消耗冷卻空氣,從而損害渦輪的整體循環效率。According to experience of boiler - reforming, and the theory of transmit heat and hydraulics, the problems existing in the circulatory system and interior devices of hot - water boiler are analyzed, the methods of resolving the problems are proposed
本文根據改爐情況和傳熱學、水動力學的原理,分析了熱水鍋爐水循環系統及內部裝置存在的問題,並提出了解決這些問題的方法和措施。Abstract : according to experience of boiler - reforming, and the theory of transmit heat and hydraulics, the problems existing in the circulatory system and interior devices of hot - water boiler are analyzed, the methods of resolving the problems are proposed
文摘:本文根據改爐情況和傳熱學、水動力學的原理,分析了熱水鍋爐水循環系統及內部裝置存在的問題,並提出了解決這些問題的方法和措施。Heat cycle tests for electric power fittings
電力金具熱循環試驗方法These deviations are not acceptable for typical calculations in hat. similar problems occur for caes plants. in order to meet the demands of engineering design, the humid air must be regarded as a kind of real gas and more accurate thermodynamic properties of the humid air are acquired at high temperature and high pressure
本文針對新型熱力循環中對高溫高壓濕空氣熱力學性質參數的需求,以濕空氣透平和壓縮空氣蓄能系統中的工質為研究對象,在維里狀態方程的框架下,運用對應態原理,提出一個適合計算高溫高壓濕空氣熱力學性質的對應態維里方程,並利用兩種方法對濕空氣的汽液相平衡進行計算。The thermally driven heat transfer phenomena in four small - size circular channels in the gravitation field were compared by numerical simulation
摘要採用數值模擬方法,比較了重力場下4種細微循環通道內的熱驅動換熱現象。Based on the accumulated engineering experience of cfb technology by tsinghua university, this paper develops a pseudo - static model to study the performance of a real 135mw cfb reheating boiler under partial load. this model is a semi - theoretical model in which some key parameters are according to the engineering experiences accumulated by department of thermal engineering, tsinghua university in the last fifteen years
本文在國內外已有研究成果基礎上,尤其是根據清華大學熱能工程系多年來致力於流化床燃煤技術的研究與開發所積累的豐富的工程經驗,採用準靜態模型化方法,對135mw再熱循環流化床鍋爐的部分負荷性能進行了研究。The result of the calculation for tip clearance is reasonable when it is compared with theory. two ways are put forward for convention of dimension of the turbine components from high temperature to low one, which is related with tip clearance, a simple example is used to illuminate that the two ways are useful, using the method of design optimization, axiisk and a blade of a certain turhine is analysed, it showes that the method of design optimization is feasible to be used for convertion of dimension of the turbine components. finally, ansys software is used to analyzed the variation of tip clearance with the method of cyclic symmetry analysis when engine works under the conditions of temperature and rotational speed, am using a new method to deal with thermal contact resistance in the calculation
本文完善了計算渦輪葉尖間隙的簡化演算法程序,增加了程序的計算功能,並將其應用於某高壓渦輪進行葉尖間隙分析,所得結果與理論結果進行了對比,得出修改後的程序用於葉尖間隙計算是合理的;同時提出了與葉尖間隙相關的渦輪典型部件的冷、熱態的尺寸兩種換算方法,使用優化設計的方法進行了實例分析,說明了所提出的計算方法是可行的;最後應用ansys有限元軟體利用循環對稱的方法分析了某型發動機高壓渦輪在溫度場及離心力作用下的葉尖間隙在發動機工作過程中變化情況,並分析了計算中的接觸熱阻的處理問題。This text analyses the current situations and problems on the salary management of chinese enterprise ; studies and draws lessons systematically from the domestic and international theories and methods about the salary management ; explains and analyses the culture, the general management situations and relevant enterprises " advanced salary management methods in the researching enterprise " country ; compares this country ' s management system with those in america, korea and other developed countries ; and analyses the researching enterprises " background and current situations of salary management, by using relevant theories, manpower - resource - management, organizing behaviouristics psychcholoics, ecmomics, operationreserch, statistics, management. . ect, this text combines the reality to set up japanese employee ' s salary administrative system on the japan branch of china northwest airlines. this text also sets up four major salary systems : basic wages, rewarding wages ( the prize ), additional wages and the welfare ; defines the dynamic salary standard ; and fulfills the quantization, totalization, electronic data processing and benefiting from the salary management
本文分析了中國企業薪酬管理現狀及存在的問題,比較系統地學習和借鑒了國內外關于薪酬管理的理論和做法;闡述分析了研究企業所在國家的人文化、企業管理概況及相關企業先進的薪酬管理的辦法,並將該國的管理制度與美國、韓國等發達國際進行了比較;在此基礎上分析了所研究企業的背景與薪酬管理的現狀,通過運用人力資源管理學、組織行為學、心理學、經濟學、運籌學、統計學、管理學等相關學科的理論,結合實際,建立了中國西北航空公司日本地區辦事處日本雇員薪酬管理系統;設立了日本雇員基本薪資、獎勵薪資(獎金) 、附加薪資和福利等四大項薪酬內容,最終確定了動態薪酬標準,實現了薪酬管理數量化、綜合化、電算化、效益化,較好地調動了日本雇員的工作熱情,使企業內部管理工作走上了良性循環軌道。In this dissertation, the effect of texture, heat - treatment, and hydrogen on the lcf behavior of zircaloy - 4 and the cyclic deformation behavior for zircaloy - 4, n18 alloy and n36 alloy have been investigated systematically using fully - reversed tension - compression loading under strain control ( r = min / max = - 1 ), while the evolvement of the friction and back stresses versus the number of repeated working cycles and the plastic strain amplitude has been studied, and the thorough discussion combined with the analysis result of fatigue sub - structure, friction and back stresses, and fatigue fracture has been given to the mechanism underlying the lcf behavior of alloys
本文採用對稱拉壓循環變形方法( r _ = _ ( min ) _ ( max ) = - 1 ) ,系統研究了織構、熱處理狀態、氫對zr - 4合金低周疲勞性能的影響, zr - 4合金、 n18合金和n36合金的循環變形行為,並研究了摩擦應力、背應力隨循環周次、塑性應變幅的變化規律。結合疲勞亞結構和疲勞斷口的分析結果,深入探討了影響合金低周疲勞行為的作用機制。The authors first apply basic theory of equivalent heat drop on the common circulation heat calculating model for thermal system in supercritical pressure power unit with second reheat cycles and other kind of condensing steam turbine by mathematical derivation strictly, based on the normal energy balance and theory of equivalent heat drop, aiming at characteristics of thermal system in which there are outer steam coolers that high pressure heater and low pressure heater carry
摘要以常規熱平衡方法和等效熱降理論為基礎,針對二次再熱超臨界機組熱力系統高低壓加熱器均設置外置式蒸汽冷卻器的特點,經過嚴格的數學推導,將等效熱降理論應用於二次再熱超臨界機組熱力系統循環吸熱量計算的研究,並提出了適用於不同類型凝汽式機組的通用數學計算模型。Firstly, based on the utilization of the first and second law of thermodynamics, the ideal combined camot cycle model is set up. secondly, aimed at the insufficient of the classical thermodynamics analysis method, the popular method - - finite time thermodynamics analysis is applied to set up the model of endo - reversible combined carnot cycle. finally, the optimization relationships between the specific heating load ( shl ) and operating parameters and between shl and cop are conducted according to the characteristics of the function and investment of aht
在首先利用熱力學第一、二定律分析方法的基礎上,建立了吸收式熱變換器的理想聯合卡諾循環模型,然後針對經典熱力學分析方法的不足,利用了當前很流行的有限時間熱力學分析手段,建立了aht系統內可逆聯合卡諾模型,根據熱變換器的功能、投資等方面的特點,導出了吸收式熱變換器比供熱率與操作參數、比供熱率與熱力學性能系數的優化體系。Based on the comparative analysis of two available heat system plan, the paper selects the water - water heat pump system plan. after a series of character analysis, design calculation ; the style of compressor including media choosing and its circle dynamic calculation for the thermodynamic system is determined. besides this, based on some basic measure of thermodynamic analysis, the heat pump coefficient of performance is discussed ; the exergy analysis for the water - water heat plan is conducted ; the calculation formula of heat pump exergy efficiency is derived ; an optimal model for heat pump together with thermal machine is established and the main exchanger equipment in heat pump system including its resistance calculation is designed in details
本文通過對兩種系統方案進行比較分析,確定了水環熱泵系統的基本方案,經過定性分析和設計計算,進行了壓縮機的選型、工質的選擇、熱力系統的循環計算等基本設計,同時應用熱力學分析的一些基本方法,討論了如何評價熱泵系統的性能系數,並對電廠循環水余熱回收熱泵系統進行了(火用)分析,得到了熱泵過程(火用)效率的計算公式,建立了熱泵?熱機聯合機組優化模型,還對熱泵系統的主要換熱設備進行了詳細的結構設計和阻力計算,最後對熱泵系統進行了技術經濟分析和評價。Thermally driven comparison of small single - cyclic channel and small multi - cyclic channel in gravitation field is performed through experiments and numerical simulations. the results show that the change of temperature at walls of the heat end minishes and the temperature distribution uniforms with the addition of the cyclic channels. and the ratio of the circuit ’ s height ( h ) to the distance between cooled and heat end ( w ) has effect on heat transfer
本文首先採用實驗與數值模擬相結合的方法對重力場下單循環和多循環微小通道內流體的熱驅動進行比較研究,發現隨著循環通道的增加,熱端壁溫起伏變化減小,溫度分佈逐漸均勻化,而且通道高度與冷熱端間距的比值h / w的變化對通道換熱也有影響。08. 04 test method for cyclic pressure strength of reinforced, thermosetting plastic pipe
增強熱固塑料管循環壓力強度試驗方法In this dissertation, the influences of the irreversibilities of heat and mass transfer, the irreversibility inside a cyclic working fluid, heat leakage and otlier irreversible effects on the performances of three - source thermodynamic cycles are studied. by using the methods of finite - time thermodynamics and optimal control theory, the fundamental optimal relations and a series of performance bounds for the concerned thermodynamic cycles are derived
本文研究傳熱不可逆性、傳質不可逆性、工質內部不可逆性及熱漏等不可逆因素對三源熱力循環性能的影響,應用有限時間熱力學和最優控制論等方法,導出相關熱力循環的基本優化關系和一系列性能界限。The peng robinson cubic equation of state ( pr eos ) is used to calculate thermodynamic properties of frequently used refrigerants ( r12, r22, r502 ) and prospective alternatives refrigerants ( r134a, r152a, r125 ) and mixed - refrigerants ? the result of using cfc and hfcs refrigerants is contrast to the result of mixed - refrigerants in ideal single - press circle at lower evaporating temperature
在單級和雙級兩種不同製冷循環下,研究了不同製冷工質在變蒸發溫度及變冷凝溫度的循環性能。本文採用狀態法? pr方程計算常用的製冷工質( r12 、 r22 、 r502 ) 、有希望的替代物( r134a 、 r152a 、 r125 )和混合工質的熱力學性質。Plastics piping systems - thermoplastics pipes and associated fittings for hot and cold water - test method for resistance of joints to pressure cycling
塑料管道系統.熱水和冷水用熱塑件和相關配件.接頭耐壓力循環的試驗方法Bituminous mixtures - test methods for hot mix asphalt - cyclic compression test
瀝青混合料.熱混瀝青的試驗方法.循環壓力試驗分享友人