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working substance (開動發動機活塞等所需的)資用物質,工質〔如各種氣體,液...

working title

When power is 20w , working substance is r123 , the surface temperature is below 35 ; when power is 200w , the surface temperature of electron compound is below 70 , the total thermal resistance is 0 . 285 / w , which exhibits this compound heat pipe great applicability for long - range heat power 當熱流量為20w小發熱量時,工質使用r123 ,可以使電子器件的表面溫度控制在35以下;在熱流量達到200w的時候,使電子器件的表面溫度控制在70以下,總熱阻為0 . 285 / w ,表現了該熱管散熱器對大范圍熱流量很好的適用性。

Using compressed air and transformer oil as working substance , this paper studied the pressure characteristic of internal - mixing nozzle and acquired the experimental relation on the pressure in the mixing chamber of internal - mixing nozzle against the operation parameters and structure parameters according to the method of step by step regression 摘要以壓縮空氣和變壓器油為工質對內混式介質霧化油噴嘴的流量特性進行實驗研究,并通過逐步回歸分析的方法獲得了內混式介質霧化噴嘴油、氣流量系數與運行及結構參數的實驗關系式,可供設計使用部門參考。

On the basis of virial state equation and the corresponding - states principle , a state equation of corresponding - states - virial is proposed to calculate thermodynamics properties of humid air , which is used as working substance in humid air turbine and compressed air energy storage ( caes ) system at high temperature and high pressure . the activity coefficient method and eos method are utilized to calculate the vapor - liquid equilibrium state of humid air . main contents of study listed as following : 1 用本文提供的計算模型對干空氣、水蒸汽和濕空氣的第二、第三維里系數進行了計算,并與asher提供的維里系數進行比較; 3 .用本文提出的對應態維里方程,計算得到濕空氣的壓縮因子,濕度在0 w 1kg / kg ( a )的范圍內時,與實驗數據吻合較好。

The regenerative characteristics , performance parameters and optimal theories of the encsson and stirling cycles using respectively a ferroelectric material , a ferromagnetic material , a classical gas , a quantum gas and a spin system as the working substance are researched for different operating conditions 本論文主要研究以鐵電材料、鐵磁材料、經典氣體、量子氣體和自旋系統等不同材料為工作物質的埃里克森循環和斯特林循環在各種不同條件下的回熱特征、性能參數及優化理論。

A new thermodynamics analysis of working process of diesel engine which is different with traditional one - finite time thermodynamics analysis model , is put forward in this paper . this model gives the consideration to thermal resistance loss between working substance and heat reservoirs , heat leak loss inner the system , and character of finite time of system 本文提出了一種不同于傳統熱力學分析方法? ?有限時間熱力學分析模型,對柴油機工作過程進行了研究,該模型考慮了熱源與工質傳熱存在的熱阻、系統內部存在的熱漏損失及系統的有限時間特性。

Structured with glass or plastic transparant pipe , and directly make it into thermotube , which makes the whole thermotube become visible for our naked eyes to observe the work state of the working substance in the interior of thermotube ; fully transparent thermotube research and tutorial appliance also offers the metal and nonmetallic pipes of the same shape used for contrasting , from which we can conclude their diathermancy in different conditions , demonstrate intuitionistically and testing the different performances of the thermotube , which makes the study and the testing about the thermotube ' s performance more deep and easy 采用玻璃或透明塑料的管,并直接將其制造為熱管使得熱管的全部都是可以用肉眼觀測到熱管內部的工作介質工作的狀態,全透明熱管科研教學器具還給出了與熱管同樣外形的用于作對比的金屬管和或非金屬管,可以通過對比確定不同條件下的熱管與金屬或非金屬的傳熱性能,可以直觀的演示、測試熱管的各種性能,更深入、易懂地學習、試驗熱管的各種性能。

The system follows carnot cycle principle . driven by electricity , its working substance absorbs the latent heat in the air or other low - temperature heat source , and waste heat let out of living or industry , compresses it to heat by compressor , exchange , exchange heat with water to higher the water temperature ( 55 warm ) . it a new water heating apparatus , used in home heating , and influenced by environment runoff and the heat exchang of working substance . this system is more used in southem china 根據逆卡諾循環原理,采用電能驅動,通過工質吸收空氣中或其他低溫熱源中無法被利用的太陽能潛熱、生活及工業排放的廢熱,通過壓縮機壓縮升溫,再與水換熱,使水溫升高,獲得( 55 )熱水,是一種新型的熱水制造設備,應用于家庭和熱水系統,受到環境溫差和工質換熱的影響,熱泵熱水器/熱水系統更多適合南方地區應用。

This paper ’ s background is society need , and assimilates experience of former scholar to improve on a liquid self - circulating radiator for electronic component and develops a new form of more effective compound heat pipe radiator for electron component . at the same time , which is charged respectively by four natural working substance ? ? methanol , ethanol , acetone , water and a refrigeration ? ? r123 本文正是在這樣一個社會需求背景下,吸取前人工作經驗,改進原有電子器件液體自循環冷卻系統,并開發出一種更為有效的電子器件復合型熱管散熱裝置,分別使用了四種天然工質? ?甲醇、乙醇、丙酮、水和一種制冷劑? ? r123進行試驗。

The influence of several factors such as non - perfect regeneration , finite - rate heat transfer , internal irreversibilit y of the working substance , heat leak loss between the heat reservoirs , heat transfer laws and the quantum degeneracy on the performance of thermodynamic cycles is studied 重點分析非理想回熱、有限速率熱傳遞、工質的內不可逆性、熱源間的熱漏損失、熱傳遞定律和量子簡并性等各種不同因素對熱力學循環性能的影響,從而獲得一些新穎的結論。

By comparing the operation performance of the different working substance heat pump , it indicates that operation performances of these heat pumps are rather similar . in the heat pump system , hcfc22 and hfc134a are excellent alternatives for cfc12 結果表明提出的模型具有較高的計算精度和計算速度;同時也表明了hcfc22 、 hfc134a作為cfc12的替代工質在熱泵中具有較好的運行性能。

Through using five working substance ? ? methanol 、 ethanol 、 acetone 、 water 、 r123 , performance of r123 is best , performance of acetone is best in natural working substance , following is ethanol 、 methanol 、 water 通過對五種工質? ?甲醇、乙醇、丙酮、水、 r123的試驗,發現r123的效果最好,在天然工質中效果最好的是丙酮,其次分別為乙醇、甲醇、水。

The heat coefficient changing of the heater and reheat ; c . the leakage test of the working substance ; d . the damage test for the heat pipes of the radiator , were taken 分析了穩態參數,完成了:吸熱器熱負荷擾動試驗、吸熱器及回熱器換熱系數變化試驗、工質泄漏試驗、輻射器熱管損壞試驗等多個仿真實驗。

The saturated densities , vapour pressures , and latent heats of vaporization for hfc working substances of refrigeration are calculated by using a set of general equations of thermophysical property of liquids 摘要應用一套通用型流體熱物性方程對hfc類致冷工質的飽和密度、蒸汽壓和汽化潛熱進行計算。

The paper simulated the 10kw space solar power system , the outcome and the test data can be used as the reference to choose the facility or the working substance 本文較完整和準確地完成了10kw太陽能熱動力電源系統的仿真工作,其仿真試驗結果有助于設備選型和工質選擇。

Under the preliminary experimental research , the micro - actuator was substituted by a buzzer , water and ink were separately used as working substance and coloring agent 在微射流的原理性實驗中,本文采用蜂鳴器代替微射流作動器,并以水作為工質,以墨汁作為染色劑。

In addition , that building experiment setting is used for experiment and analyzed performance of the heat pipe radiator that using five different working substance 并為該熱管散熱器建立了試驗臺,通過使用五種不同的工質對該種熱管散熱器的性能加以試驗及分析。

The most attractive advantage of the microjet technique is that its working substance comes from environment and related tank , piping and valve can be omitted 其最大特點是:不需要專門的工質儲箱,而是直接從環境獲取工質。

The steam turbine is a machine regards steam as the work substance , and transforms thermal energy into kinetic energy of steam flow 汽輪機是以水蒸汽為工質,將熱能轉變為機械能的高速旋轉式原動機。

A working substance has been prepared by treating perfluorinated polymeric oils and greases . 一種工質已由全氟聚合物油和潤滑脂制造出來。