電介加熱法 的英文怎麼說
中文拼音 [diànjièjiārèfǎ]
電介加熱法
英文
dielectric heating-
The higher temperature, the more fe ( co ) 5 decomposed in the gaseous phase. when the temperature was raised to 150, the thermolysis entirely happened in gaseous phase and the particles of 2 - 4um formed in long chains. with long chains broken, the plural relative permittivity ( e ", e " ) drop and plural magnetic permeability ( u ", u " ) rise
恆溫滴加法受溫度影響顯著，隨著溫度的升高，發生在氣相中的熱分解量增加； 150下fe （ co ） _ 5完全在氣相中分解，產物為2 4 m的微粒形成的鏈狀結構，這種鏈狀結構的破壞有利於復介電常數（ 、 ）的降低、復磁導率（ 、 ）的提高。Firstly. operation principle of induction heating is introduced and the actuality of the power supply for induction heating is summarized. then, the scheme of structure of the power supply is established : uncontrolled rectifier and buck chopper constitute dc circuit. in this part, operation principle of a kind of soft switching buck chopper is presented mainly and the conclusion that the power semiconductor devices operate in soft switching is also illustrated by analysing the operation principle of all stages ; series resonant inverter is selected as inverter circuit via comparing the advantage and shortcoming of parallel resonant and series resonant. moreover. the work principle of series resonant inverter is analysed and the calculating method of the best dead time is put forward as well
文中首先介紹了感應加熱電源的工作原理並綜述了國內外的研究現狀。接下來分析並制定了電源主電路的構成方案：在對比幾種功率調節方式的基礎上選擇了不控整流加斬波調壓作為直流部分。在這部分里，重點研究了一種軟開關buck變換器，通過分析各階段的工作原理說明了開關器件如何工作在軟開關狀態；對于逆變器部分，在比較了串、並聯逆變器優缺點的基礎上選擇了串聯諧振逆變器，並詳細分析了串聯逆變器的工作原理，提出了最佳死區的計算方法。The object to study in this paper is the electric heat reservoir boiler, which is used to supply heat water and bask for the resident population. the use of the system define the character of the output medium with the lower request on quality and parameter, at the same time, it ask the boiler should has the higher character on the respect of the cost, reliability, economy, and so on. hence, the paper carefully design and study the system for the choice and design of the boiler core heating componet, the lay of the heat exchanger, the working status of the heat reservoir equipment, the adjustment and control mode of to supply heat water. the study work mainly include underside some contents, forexample : 1. to confirm the heat medium parameter to adapt the requirements of the most of the heating equipments and to design the instruction of the boiler and heat reservoir as simple as possible
圍繞上述原則，本文從電熱鍋爐核心加熱元件的選型及設計、換熱面的布置、蓄熱設備的運行工況、供熱的調節方式以及控制方法進行了較細致的研究和計算，具體研究工作有以下幾個方面： 1 .根據使用要求，確定適用於多數採暖設備的熱介質參數，設計在結構型式上盡可能簡單的鍋爐和蓄熱器； 2 .對製造加熱元件電熱管的各種材料進行了對比和分析、在結構尺寸上進行了仔細的分析和計算，根據實際使用條件給出合理的設計，使其具有較高的可靠性和使用壽命； 3 .對不同換熱面布置形式進行傳熱分析。Ir - ta - ti metal oxide coated titanium anodes of variable composition were prepared by thermal decomposition. their micro morphorogies and electrochemical properties were characterized by scanning electron microscope, open circuit potential, cyclic voltammetry, consumption rate measurements and accelerated life test. the sem results indicated that all coatings were of a porous and cracked - mud microstructure influenced greatly by the composition of coatings. the electrochemical measurements showed that the ir - ta - ti ternary oxide - coated anodes exhibited excellent electrochemical activity and electrochemical stability in both acidic media and seawater which were affected by the composition and microstructure of the coatings. owing to good corrosion resistance and low consumption rate in seawater, metal oxde coated anodes belong to insoluble material, and can be potentially applid in impressed current cathodic protection systems as an anode
採用熱分解方法在鈦基體上制備銥鉭鈦金屬氧化物陽極，用掃描電鏡對陽極塗層顯微形貌進行分析，通過強化電解壽命試驗、開路電位測試、消耗率試驗及循環伏安曲線研究了金屬氧化物陽極的電化學性能. sem分析結果表明銥鉭鈦金屬氧化物陽極塗層呈現多孔多裂紋形貌結構.隨陽極塗層組成不同，塗層顯微形貌表現出很大差異，這種差異直接影響陽極電化學性能.電化學性能試驗結果表明銥鉭鈦金屬氧化物陽極在酸性介質和海水中具有良好的電化學穩定性和電化學活性.此外，銥鉭鈦金屬氧化物陽極在海水中的消耗率很低，屬于不溶性的陽極材料，作為外加電流陰極保護用輔助陽極具有廣泛的應用前景The input of the heater is controlled with proportional - integral - differential ( pid ) logic. the flux of the cooling fluid is regulated by electronic expansion valve
系統採用pid演算法控制導電鍍膜的加熱量，同時使用電子膨脹閥調節冷卻介質的流量。Abstract : highly substituted cationic starch was prepared by microwave radiation in dry process. in this preparation, starting materials mixed with high speed stirres, potassium hydroxide used as catalyst and discontinuous heated by microwave radiation at temperature 60 85 to give 0 35 0 50 degree of substitution cationic starch the conversion of cationic reagent reached 95 the product is soluble in water it is pasted when it meets water
文摘:微波干法制取高取代度的陽離子澱粉，用高速攪拌機混合物料，氫氧化鉀做催化劑，間歇式微波介電加熱溫度不超過85 ，陽離子試劑的轉化率可達95 ，產品取代度0 35 0 50 ，常溫下遇水糊化，在水中有較好的溶解性。A kind way of current sharing composed of the droop method and the master - slaver method based on thermal stress and the random of the master is given, in this system an extra controller is attached ; all the software and hardware on can fieldbus communication part have accomplished, which guaranteed the communication of the charger high reliability and high real - time. the source and types of the noise from switching power are analyzed and some methods are introduced to restrain noise and strengthen the system performance of interference rejection
提出了一種外加控制器基於熱應力均流的主從可轉換均流方法；對系統中can總線通信部分的軟硬體進行了設計，保證了系統通信的實時性和可靠性；對開關電源噪聲來源與種類進行了分析，介紹了一些抑制噪聲和增強系統抗干擾性能的措施。The two - dimensional axisymmetric subsonic - transonic - supersonic flow in an experimental arcjet thruster is simulated numerically using flux vector splitting method. the profiles of density, velocity, temperature, pressure and mach number can be obtained by the computation. the computation grid and some computed results are given here. the test equipment such as power supply system, ignition system, propellant supply system, arcjet thruster, thrust measuring device and vacuum system are introduced briefly. some working phenomena of the arcjet are observed and discussed. three different kinds of instability appeared in the process of the experiments. except some important parameters are measured, it is found that the operating stability of argon is better than that of nitrogen
對一實驗電弧加熱式發動機二維軸對稱亞跨超音速流動進行了數值模擬，所採用的方法是矢通量分裂演算法.通過計算可以得出密度、速度、溫度、壓力和馬赫數的分佈.給出了計算所使用的網格和一些計算結果.簡要介紹了實驗所使用的設備，如電源系統、點火系統、推進劑供給系統、電弧加熱式發動機、推力測量裝置和真空系統.對所觀察到的一些工作現象進行了討論.有三種不同的不穩定性出現于實驗過程.除了所測量的一些重要參數，通過實驗發現氬比氮工作更穩定This paper introduces the development status of air cooling units both at home and overseas, as well as operating condition and effective factors of 200 mw air cooling units of fengzheng power plant, shows the developing direction, analysis theory and tool of thermal economics, at the same time, on the basis of this theory, using thermal economics analysis method to analyze and compute the unit exergy cost of 200mw air cooling units of fengzhen power plant under different working condition such as environmental temperature, wind speed, and draws aconclusion that the unit exergy cost increases as environmental temperature and wind speed increase
本文介紹了空冷機組國內外的發展狀況、豐鎮電廠200mw空冷機組的運行狀況和影響因素。闡述了熱經濟學的發展方向、分析理論和分析工具，並在此理論的基礎上，用熱經濟學分析的方法，對豐鎮電廠200mw空冷機組在環境溫度、環境風速各五種不同工況下的單位火用成本進行了分析計算，並得出了隨環境溫度、環境風速的增加單位火用成本增加的結論。High - frequency dielectric heating installations. test methods for the determination of power output
高頻電介質加熱裝置.功率輸出測定的試驗方法High - frequency dielectric heating installations - test methods for the determination of power output
高頻電介質加熱裝置.測定輸出功率的試驗方法In chapter 2, gives a brief introduction to the basic theory of induction heating technique ; a mathematical modal is developed to describe the distribution of electromagnetic field and eddy current density in the long solid cylinder billet of induction heating. the general question of eddy current field calculation and the weakness of design theories for induction - heating coils that has won great popularity in engineering are pointed out
第二章：介紹了感應加熱的基本原理，推導了感應加熱工件內電磁場與渦流分佈的理論公式，對感應加熱渦流場計算的一般問題、傳統感應加熱工程工程設計計算的不足以及電磁場數值計算方法作了介紹。分享友人