環空壓耗 的英文怎麼說
中文拼音 [huánkōngyāhào]
環空壓耗
英文
a ular pre ure lost-
At the same time, mechanical compression refrigerators consume a big quantity of electric power and indirectly make the pollution problem severe, which bring forward a great challenge to the human ' s sustainable development
隨著人們生活水平的提高，空調的使用日益廣泛。與此同時，大量使用機械壓縮製冷系統帶來電能消耗、環境污染問題也向人類可持續發展提出了挑戰。Three phase dry type power transformer, which make it with those features : safety, reliability, and energy saving, fireproof, flameproof, simple maintenance etc., the design is advanced ; the structure of products is reasonable and the outline is fine, the main performances of the products are much better than the national standards, for example, partial discharge level no - load loss, on - load loss, noise level, it is adaptable for application on heavy humidity and severely pollute places which are near to lake, sea and rive, as well as, high demand - fireproof, heavy load capacity place, such as : high building, airport, station, port, underground, hospital, electrical power station, metallurgy, shopping center, residential area and petroleum chemical industry, nuclear power station, nuclear - powered submarine
非包封線圈三相干式變壓器，具有安全可靠節能防火防爆維護簡單等優點。其設計先進結構合理外形美觀。主要性能指標均優于國內標準，如局放水平空載損耗負載損耗噪聲以及能適應高溫度環境使用等，可安裝在靠近湖海河邊污穢潮濕的環境及防火要求高負荷較大的地區，適用於高層建築機場車站碼頭地鐵醫院電廠冶金行業購物中心居民密集區以及石油化工核電站核潛艇等場所。In famous constructions and key projects such as capital international airport, sanxia three gorges hydropower project, nanjing metro subway, qingdao good - world sea palace, jinan railroad sub - bureau, suzhou amusement park, beijing 1st heating power plant, china 2nd autombile plant, xian peace villa, our products continue to operate safely
其技術性能指標達到目前國內同類產品的領先水平，其空載損耗比s11型配電變壓器的空載損耗降低60以上。同時，由於本產品採用全密封結構，絕緣油和絕緣介質不與空氣接觸，因而可在潮濕的環境中運行，是城市和農村配電網路中理想的配電設備。To research the energy transformation and utilization orderliness of the new proposed system is the main objective and content of this dissertation, as follows : about two thirds of the work output of the turbine is consumed by the compressor. traditionally, every way of inter - cooling adopted in gas turbine decreases the work consumption of compressor in some degree. through the spraying of water at the entrace of compressor, the air can be continuously cooled in compression so that the work consumption can be reduced greatly
本論文從以下幾個方面進行了研究：由於燃氣輪機循環中壓氣機消耗近2 3的透平出功，傳統上採用的各種間冷方式都一定程度地降低了壓氣機耗功；而壓氣機入口採用注水方式，可以對壓縮空氣進行連續冷卻，以達到大幅度降低壓氣機耗功的目的。The results showed that : ( 1 ) the application of the above optimization method is feasible in the process of vacuum residue hydrotreating. ( 2 ) shaft power is a small part in the operation fees of the hydrogen system and has little influence on the optimization results. ( 3 ) vent should be decreased to reduce energy consumption because of the high concentration of the cycle hydrogen after rebuilding of the unit
在pc - 133微機上進行了模擬和優化計算，結果表明： （ 1 ）以復合形法為核心的可行路徑序貫模塊法在重油加氫過程中的應用是可行的； （ 2 ）壓縮機軸功率在重油加氫的氫氣系統操作費用中所佔比例較小，對優化結果影響不大； （ 3 ）裝置經過技術改造后循環氫純度過高，可以減少放空以節省能耗； （ 4 ）建立的氫耗模型能夠可靠地計算現有裝置的循環氫濃度、溶解氫總量和裝置氫耗量。People can easily design the hysteresis current control hardware circuit, but the switching frequency is variable which makes us difficult the design the output filter, moreover the output waveform is not good. the space vector modulation techniques, by selecting the zero vector properly, it can reduce the harmonic content of the output voltage, so it has become a popular control method
滯環電流控制的硬體電路設計簡單，但存在開關頻率不固定，輸出濾波器設計困難，輸出波形質量差，空間矢量控制（ svm ）技術具有較高的電壓利用率，且通過對零矢量的合理控制可以降低諧波含量或降低開關損耗，因此是一種較好的控制方法。Starting from the frozen food and refrigeration principles and using comparative analysis method, we get conclusions that in the blow - frozen device, the open - mode, cold - quantity reclaim, low - press, direct - cooling air, absorbing - heat air cycle have the most significant reductions in food freeze dry cost, food hygiene, devices delicate, organizating air stream, non - electrical heat, high efficiency and safe refrigeration etc. the cold - cumulating and dryness tin is the equipment which applys the store - release characteristic of cold - cumulating stuff, ensures the higher efficiency of open - mode cold - quantity reclaim low - press direct - cooling air, shoulders conveyance of the saturated and frozen air to frozen storeroom to reduce dry cost of food and dry the cycling air to ensure safe and reliable
從食品冷凍和製冷原理入手，用對比分析方式得到了在吹風式凍結裝置中，開式回冷低壓直接冷卻吸熱循環空氣製冷機具有最大幅度降低食品凍結乾耗、確保食品冷凍安全、系統簡單、凍結庫小巧、氣流易於組織、無電機熱量、效率較高和製冷安全等結論。蓄冷乾燥器是通過蓄冷材料的蓄?釋冷特性，來保證開式回冷低壓直接冷卻吸熱循環空氣製冷機具有較高的效率，同時蓄冷乾燥器還擔負著輸送飽和低溫空氣至凍結庫以降低食品凍結乾耗和乾燥循環空氣以確保整機安全可靠工作的主要設備。Firstly, the basic theory of full - bridge phase - shift zvs pwm converters are expatiated and another three kinds of circuits of full - bridge phase - shift zvs pwm converters are discussed. there are four kinds of problems which are emphasized : how to expand the zvs range ; how to reduce the circulation in the primary side of the transformer in order to minimize the on state losses ; how to decrease the loss of effective duty circle and how to eliminate the parasitic oscillation of the output rectifiers
本文首先分析了基本的全橋移相zvsdc dc變換器的工作原理，為解決滯后橋臂不易實現零電壓開關（ zvs ）的情況，討論了另外三種全橋移相zvsdc dc變換器的電路拓撲，重點分析並解決了四個方面的問題：如何擴大zvs的負載范圍；減小變壓器原邊環流，降低變換器系統通態損耗；減少變壓器次邊有效占空比丟失；消除輸出整流二極體的寄生振蕩。The algorithm inserts the dynamic voltage scaling code before the condition statements and after the loop statements, which affect the program execution time. the algorithm makes full use of the slack time for the running program and effectively reduces system power consumption
該演算法在編譯器的幫助下，在條件語句，循環語句等影響程序實際執行時間的控制語句結構中設置電壓調節點，插入電壓調節代碼，從而最大限度的利用了程序運行時的空閑時間，達到了降低系統功耗的效果。The system adopts several technologies, such as recovery of condensing heat, thermal storage and heat pump, etc. it can synthetically utilize energy of compression refrigeration cycle and satisfy the need of air conditioning and domestic hot water simultaneously. at the same time, its application will improve some problems of the conventional system ( an air conditioner and a hot water heater ), such as large consuming energy, wasting energy and thermal pollution to environment. therefore, hpacdhws is obviously in favor of development economy, environment and society
該設備能全年綜合利用壓縮式製冷循環的能量（冬季運行要依靠輔助熱源） ，並融合了熱回收、蓄熱和熱泵等多項技術，能夠同時滿足建築物內空調和生活熱水的需求，緩解了常規系統（常規空調器+熱水器）能耗大、能源浪費和環境熱污染等問題，具有明顯的經濟效益、環境效益和社會效益。Annular pressure lost
環空壓耗分享友人