比熱率 的英文怎麼說
中文拼音 [bǐrèlǜ]
比熱率
英文
specific heat ratio-
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Using results of this paper and thermodynamical bethe ansatz method, one can study the thermodynamics of this model under open boundary conditions
在本文結果的基礎上,利用熱力學betheansatz方法,可進一步研究此模型的一些熱力學性質,如比熱、磁化率等。It ' s the first time to explore the combustion characteristics of lpg / diesel mixing fuel engine, and find that, with the change of load and rotation, the changing trend of the ignition delay period of e10 mixing fuel is almost as identical as that of the diesel, but that of e30 mixing fuel is very different. comparing with diesel, the combustion of e10 is improved slightly, but that of e30 greatly changes ; the maximum eruptive pressure decreases ; the maximum pressure increase rate decreases ; the highest releasing heat rate increases ; the highest combustion temperature falls ; the ignition delay period extends
結果表明: e10混合燃料與柴油的著火滯燃期隨負荷和轉速的變化趨勢基本一致; e30混合燃料與柴油則有所不同; eio混合燃料發動機的燃燒與純柴油相比,略有改善; e30混合燃料的燃燒特性發生明顯的變化,最高爆發壓力下降,最大壓力升高率減小,最大燃燒放熱率增大,最高燃燒溫度下降,滯燃期延長。Currently, research focuses of industry include speech coding with low bit rate, low delay, low complexity and good perceptual quality
比特率低、時延小、復雜度低、音質又好的編碼方法是目前國內外民用工業研究的熱點。Test methods of thermal diffusivity, specific heat capacity, and thermal conductivity for fine ceramics by laser flash method
激光閃爍法測定精細陶瓷的熱擴散率比熱容量熱傳導率試驗方法On the deep foundation that studies and understands thermaldynamic system of steam power plant, this text is to compare analytic theories and computation method constantly used at present on the economy of thermaldynamic system of steam power plant, calculate the influences on thermal economy with theory of equivalent enthalpy drop when high pressure heater is into stoppage, prove influences degree on thermal economy when the composition of heater stoppage is diffrent, define regenerator rate and offer theoretical direction for heater stoppage
本文在對火力發電廠熱力系統深入學習、掌握的基礎上,對目前幾種常用的火力發電廠熱力系統經濟性分析理論和計算方法進行了比較,以等效焓降理論對高壓加熱器停運時熱經濟性的影響進行了計算,說明了高壓加熱器各種停運組合對熱經濟性的影響程度;提出了加熱器回熱率概念,從而為高壓加熱器切除提供了理論指導。Research in low - temperature magnetic behavior caused by superexchange interactions among transition metal ions in various compounds, including the experimental measurement of magnetic susceptibility and specific heat
研究領域:過渡金屬離子化合物之合成與磁性研究,包括低溫磁化率與低溫比熱之量測。The calculation program using the matlab has been worked out to get the numerical solutions of the proposed models. the experiment has first been conducted in the laboratory to get the fundamentals thermal and moisture properties ( such as materials density, specific heat capacity and thermal conductivity ) and also the material moisture absorption isotherms of adobe building materials. the methods of measuring the surface mass transfer coefficient and material moisture content have been proposed
首次對生土建築材料物性參數進行了實驗測試,得到了常用生土建築材料的密度、比熱和導熱系數等參數值,得到了生土建築圍護結構的等溫吸濕平衡曲線的擬合函數關系式;此外,研究了生土建築圍護結構表面質交換系數實驗測定方法,探索了利用電阻率測量生土建築圍護的安窪築科技人學博十學位論文結構內部含濕量的測試方法。Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated
以氬氣作為推進劑,在不同工況下進行點火實驗,測量獲得了其工作推力、電弧電壓和電流、推進劑流率和弧室壓力等宏觀參數,得到了不同實驗條件下其工作的實際比沖、推力效率、推力/功率比以及比功率等性能參數,分析了推進劑質量流率、電弧功率、電弧加熱發動機電弧室結構尺寸等因素對其性能的影響,為數值模擬研究和實際的低功率電弧加熱發動機優化設計及研製提供了實驗基礎。The results indicated that the physical properties of these materials were mainly dependent on the content of ni3al and increased obviously when 40vol % ni3al was contained since a net structure between ni3al phase and tic grains were formed under the circumstances
顯微結構觀察發現,在40vol ni _ 3al的組成上, ni _ 3al相與tic顆粒成為一種相互穿插的空間網路結構,使其楊氏模量、泊松比、熱膨脹率都表現出明顯的上升現象。The temperature of burned and unburned areas, rate of heat release, pressure in - cylinder and the thickness of compositions in running process of engine can be calculated by the model, the calculated results are accord with the measured results in a hydrogen ? fueled engine
該燃燒模型可以對有關狀態參數、放熱率和組分濃度等進行預測分析。預測結果與實測結果的對比表明該模型具有較好的適用性。By the numerical results basic physical processes of electrode erosion are investigated, the relations between eroded volume of electrodes and some characteristic parameters of electrode materials such as heat conductance, specific heat, melting point, boiling point and so on were obtained, and erosion - resistant capabilities of copper, tungsten and aluminum were compared
通過計算研究了電極燒蝕過程的基本物理圖象,得到了電極材料燒蝕量與材料熱導率、比熱、熔點、沸點等特性參數的關系,並比較了銅、鎢、鋁三種電極材料的耐燒蝕能力。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。Low bit rate video application based on pstn is one of the hotspots in the image coding field
基於pstn網路的低比特率視頻通信應用是當今圖像編碼領域的一個熱點,而itu - t的hSo it has low electrical conductivity and low thermal conductivity
所以它的導電率比較低,並且導熱率也非常低。On the base, integrated development environment of vb is used to develop software of simulation and optimization of aht cycle system. after the software ass is developed, it is applied to an industrial instance, including process simulation, thermal analysis and specific heating load ( shl ) optimization
在此基礎上,利用vb集成開發環境,展開了aht吸收循環系統模擬優化軟體的開發工作,並開發出軟體ass ,實現了過程模擬優化計算,包括:過程模擬、熱力學分析和比供熱率優化等計算模塊。We prove the general characters of gapped system in low temperatures again : near zero temperature, the specific heat and uniform susceptibility take on exponent behavior
我們再一次驗證了有能隙系統在低溫下的普遍特徵:在零溫附近,比熱和零場下的磁化率隨溫度表現為指數上升的現象。A titanium alloys possess characteristics such as high specific strength, low thermal conductivity, good compatibility to medium and good resistant to hydrogen embrittlement, which makes a titanium alloy suitable for the use in liquid fuel tank and tube at cryogenic temperature
鈦合金在低溫下具有比強度高、導熱率低、熱膨脹系數小、介質相容性好、抗氫脆等特點。這些性能特點使得鈦合金能很好的滿足液體燃料儲箱和低溫管道的使用要求。Research on the specific power in the miniature thermoacoustic cooler
微型熱聲製冷機體積比功率的研究This paper collects recent research advancements about the thermophysical properties in the field of ngh at home and abroad, and summarizes the thermal conductivity, adsorption heat, decomposition heat and heat capacity for single composition included in natural gas, such as methane, ethane and propane, and clarifies the influence factors relative to thermophysical properties
本文搜集和查閱了國內外關于天然氣水合物熱物理性質方面的最新研究成果,對天然氣組成的單組分水合物的導熱率,吸附熱,分解熱和比熱等熱物理性質進行了歸納和總結,明確了影響這些熱物理性質的相關因素。分享友人