【正文】 失pressure loss 溶液給水溫度liquid feed temperature 體積流速the volume flow rate 液壓頭liquid head 成比例的proportional 成反比例的inversely proportional 熱力學(xué)定律principles of thermodynamics平衡溫度equilibrium temperature 相變phase change 導(dǎo)熱性thermal conductivity 傳熱系數(shù)heat transfer coefficient 強(qiáng)制對(duì)流forced convection 自然對(duì)流natural convection 外表面external surface 焓enthalpy 熵entropy 對(duì)流傳熱convection heat transfer 牛頓冷卻公式Newton law of cooling 流體物性properties of the liquid 質(zhì)量流量比mass flow ratio 電磁輻射能electromagnetic energy 熱輻射thermal radiation 凈輻射量net radiation 流體力學(xué)fluid mechanics 熱力學(xué)性質(zhì)thermodynamic property 牛頓粘性定律Newton law of vosicosity 溫熵圖temperatureentropy diagram 回轉(zhuǎn)式發(fā)動(dòng)機(jī)rotary engine 汽輪機(jī)steam turbine 光化學(xué)煙霧photochemical smog 核電站nuclear power plant 流化床燃燒fluildized bed bustion 余熱鍋爐a heat recovery builer 表面積surface area第二篇：熱能與動(dòng)力工程專業(yè)英語(yǔ)重點(diǎn) 原版：與外界既有物質(zhì)交換又有能量交換，把研究對(duì)象控制在某個(gè)空間。it may be used to predict the amount of energy required to change a system from one equilibrium state to another。this is called thermal :when a fluid at rest or in motion is in contact with a surface at a temperature different from the plate ,energy flows in the direction of the lower temperature as required by the principle of say that heat is convected away ,and we call the process convection heat :There are two convection modes :forced convection and natural a heated plate were exposed to ambient room air without an external source of motion ,a movement of the air would be experienced as a result of the density gradients near the call this natural ,or free ,convection as opposed to forced convection ,which is experienced in the case of the fan blowing air over a :Heat transfer is the science that seeks to predict the energy transfer that may take place between material bodies as a result of a temperature :Thermodynamics teaches that this energy transfer is defined as science of heat transfer seeks not merely to explain how heat energy may be transferred ,but also to predict the rate at which the exchange will take place under certain specified fact that a heattransfer rate is the desired objective of an analysis points out the difference between heat transfer and deals with systems in equilibrium。it may be used to predict the amount of energy required to change a system from one equilibrium state to another。Adiabatic system is that no heat cross the boundary or heat is negligible pared with work cross the boundary：系統(tǒng)與外界既無(wú)能量交換又無(wú)質(zhì)量交換，即系統(tǒng)與環(huán)境不發(fā)生任何作用。Second law of thermodynamics： Impossible to heat from low temperature to high temperature object object does not produce other effects。Steam Turbine is the impeller rotating prime moverthatthe thermal energy of the steam is converted to mechanical energy。The air preheater through the fins of the internal heating surface will enter the air is preheated to a certaintemperature in the boiler before the flue gas in the rear of the boiler ：蒸汽在動(dòng)葉柵中的等熵焓降與級(jí)的等熵焓降之比The degree of reaction is steam Rotor Cascade isentropic enthalpy drop class isentropic enthalpy drop ：某一瞬間熱力系所呈現(xiàn)的宏觀狀況State: it reveals the physical condition of a ：描述系統(tǒng)宏觀物理狀況的物理量,簡(jiǎn)稱參數(shù)Properties are used todepictanycharacteristic of a ：?jiǎn)挝毁|(zhì)量的物質(zhì)所占有的體積，用v表示。A system is said to have undergone a cycle if it returns to its initial state at the end of the process turbine cylinder(汽輪機(jī)汽缸）isessentialapressurevesselwithit’sweightsupportedateachend （Definition）系統(tǒng)就是指被選做研究對(duì)象的物體或空間。18世紀(jì)以前的人們知道用火取暖，加熱食物，驅(qū)趕野獸，從而得以進(jìn)化，那時(shí)，對(duì)能源的利用還比較低等，需求也不是特別大，并沒有動(dòng)力推動(dòng)對(duì)能源的開發(fā)和利用，我們稱之為“柴草時(shí)期”。第二次世界大戰(zhàn)之后，在美國(guó)、中東、北非等地區(qū)相繼發(fā)現(xiàn)了大型油田及伴生的天然氣資源，由于每噸原油產(chǎn)生的熱量是煤的兩倍。而今，進(jìn)入21世紀(jì)已有8年，我們又進(jìn)入了一個(gè)新的能源時(shí)代：新能源時(shí)代。我有幸考入北京科技大學(xué)機(jī)械工程學(xué)院，從而得到了選擇熱能與動(dòng)力工程專業(yè)的機(jī)會(huì)。從國(guó)家角度，中國(guó)依然沒有統(tǒng)一，存在著些許歷史遺留問題，需要許許多多的我們付出努力使之強(qiáng)大起來(lái)。我們可以看到，目前就業(yè)壓力日益嚴(yán)重，如何找到符合自己興趣，適應(yīng)就業(yè)趨勢(shì)的專業(yè)已經(jīng)成了廣大準(zhǔn)畢業(yè)生的當(dāng)務(wù)之急。第四篇：熱能與動(dòng)力工程熱能與動(dòng)力工程（熱能動(dòng)力設(shè)備與應(yīng)用）培養(yǎng)目標(biāo)：培養(yǎng)適應(yīng)社會(huì)主義現(xiàn)代化建設(shè)需要的，在熱能工程方面獲得工程師基本訓(xùn)練的工程技術(shù)人才。主要課程：高中起點(diǎn)?？疲焊叩葦?shù)學(xué)、英語(yǔ)、機(jī)械制圖、電工學(xué)、線性代數(shù)、工程力學(xué)、工程流體力學(xué)、泵與風(fēng)機(jī)、鍋爐原理、傳熱學(xué)、汽輪機(jī)原理、熱力系統(tǒng)。、蒸汽輪機(jī)方面：?jiǎn)挝唬喊l(fā)電廠，鍋爐制造廠。