空負荷點 的英文怎麼說
中文拼音 [kōngfùhédiǎn]
空負荷點
英文
no-load point-
Long - hole and geometrical proportion type of mixing unit is finally adapted in lpg supply system, and power and torque output of lpg engine are improved by increasing compression ratio, and ignition characteristic is tried to adjusted to satisfy engine performance. meantime emission performance and noise level of lpg engine at full - throttle and other various part - throttle operations are tested and compared with former gasoline engine. ( 3 ) it is verified by engine dyno tests that lpg engine has better synthesized performance at aspects of power and torque, fuel economy, as well as emission than former gasoline engine
選擇了等比例長孔式混合器控制空燃比；通過提高壓縮比來彌補動力性的損失；以動力性為主控目標，對最大功率點、最大扭矩點、中等轉速、最低轉速點所對應的發動機轉速做了點火特性的調節；通過空燃比的合理控制，直接改善發動機的動力性、經濟和排放指標；作為對缸內燃燒過程的理論分析，進行了燃燒特性的實驗測試；對原汽油機和新開發的液化石油氣發動機，進行了外特性和部分負荷特性以及怠速的排放及噪聲對比性測試。The calculation and design procedures of air conditioning load, ground loop heat exchangers, radiant floor system, distribution system between heat pump and build are mainly introduced
重點介紹了建築空調負荷計算、地下埋管換熱器系統、輻射地板系統以及熱泵和建築物內分配系統設計等方面的內容。The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation
高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。Leaving the rated load, especially with low load and free running operation, ihe efficiency of turbocharger and ratio boost pressure decrease, leading to the shortage of air in cylinders and worsening of combustion, and the economic, power and exhaust performances deteriorate
當偏離標定點，尤其在低負荷和空轉工況工作時，增壓器效率降低，增壓壓力明顯下降，導致氣缸供氣不足，缸內燃燒不良，柴油機的經濟性能、動力性能和排放性能將嚴重惡化。The compressed air energy storage station and the pumped - storage station, two kinds of large energy storage systems, have the advantages of quick dynamic response, high economy, and small environmental impacts
摘要壓縮空氣蓄能電站和抽水蓄能電站兩種大型電能存儲系統，具有動態響應快、經濟性能高、環境污染小等優點，可起到負荷平衡、戰略規劃、提高供電質量的作用。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。Mae of hourly load prediction reduced to 65. 07kwh and eep reduced to 2. 60 %. this kind of model has not been reported by literature. a cost - minimum model for ice storage system is established and numerical calculation is carried out
建立了空調逐時負荷的24小時提前預測多點輸出動態模型，更進一步提高了負荷預測的精度，使得逐時負荷預測平均絕對誤差降低到了65 . 07kwh ，期望相對誤差降低到了2 . 60 。By analyzing the financial performance, the success of low - cost strategy is shown to give an example of chinese future lcc operation. the paper is focused on the llc operation features which differentiated them from the traditional carriers and lowered down the operation cost
美國西南航空公司以低成本經營作為其經營戰略和競爭優勢，採用點對點、中短途飛行、高飛機轉場率和高負荷工作量等區別于傳統航空的經營策略來降低成本。There are many kinds of methods dealing with fresh air supplying, such as free fresh air supplying, fresh air sucking, independent fresh air supplying, heat recovery ventilating ( hrv ), etc. it was proved that ac equipment capability and iaq has a relationship with fresh air states in fan - coiling and fresh air system
除了無組織的新風供應方式，住宅空調系統新風供應還有新風吸入方式、獨立新風供應、新風換氣機方式。風機盤管加新風系統中，新風處理到不同的狀態點，對空調設備負擔的負荷及室內空氣狀態都有影響，本文對各種新風處理狀態進行了分析。Presently most of the theoretical method to predict the propeller - induced hull pressure fluctuation is based on the calculation method in which the pressure is induced by pulsating source in infinite flow. the calculation method is adopted and the corresponded computer program is complied. the propeller - induced hull pressure fluctuation due to blade thickness, blade load, cavity thickness and the change of the cavity volume can be analyzed respectively in the computer program
目前，螺旋槳誘導的船體表面脈動壓力的理論預報方法，大多是以無限流場中點脈動源誘導的周圍流場的脈動壓力的計算方法為基礎的，本文採用該方法編制了計算程序，可以分別考慮槳葉厚度、槳葉負荷、槳葉上空泡厚度及其體積變化在船體表面指定位置上產生的脈動壓力。It is indicated that hrv has many advantages certified by theoretic analyze and engineering practices, such as fully ventilating, abundant fresh air supplying, energy saving, etc. comparing with independent fresh air supplying, hrv is supposed to cause potential problems, - in summer load of fan - coil units will be increased, and the wet operating mode will be aggravated, the indoor relative humidity will be increased
新風換氣機供應新風是住宅空調系統較為理想的新風供應方式，本文通過理論計算及工程實踐表明採用，新風換氣機具有換氣充分、新風量保證、節能等優點。但與新風機組獨立供應新風相比，新風換氣機供應空調系統新風時，會造成夏季風機盤管負荷增加，濕工況加重，室內相對濕度有增加趨勢。We propose a combined slf method to extrapolate feeder load growth by using feeder ' s history peak value and the merits of gray theory and genetic programming ( gp ). at first, we adopt load transfer coupling method to correct load history and its error for load transfer. secondly, we get the real power - supply area by using layer overlap analysis, based on practical feeder path and distribution gis map layer
將gis的空間信息分析功能應用於配網空間負荷預測的研究：綜合利用灰色理論及遺傳規劃（ geneticprogramming ， gp ）的優點，提出了一種根據饋線的歷史峰值負荷進行外推的組合slf法：首先採用負荷耦合回歸法來修正負荷歷史，消除由於負荷轉移引起的誤差；然後根據實際饋線路徑和配網gis圖形分層，運用圖層疊加分析得到饋線的實際供電范圍；接著採用灰色關聯度聚類方法對饋線負荷增長曲線進行聚類分析；最後採用gp來對灰色聚類結果進行符號回歸，分別得到每一類曲線的最佳擬合曲線形式。The increased demand during the last two decades for more precise methods to calculate heating and cooling loads has led to many studies of the transient heat flow to ( and from ) the ground
在過去的二十年中，由於需要更精確的計算空調冷熱負荷，使得觸地圍護結構不穩定傳熱成為研究的焦點。Allowing for the factors affecting the load forecast in the practical engineering project, i compare the characteristic and their applicability of the above spatial load forecasting methods, and then get the following results. the classified - divisional load density method has tendency to be affected by human factors, but the classification method based on artificial neural network and fuzzy theory can make up with this fault
考慮到實際工程項目中影響負荷預測的各種因素，我對上述幾種空間負荷預測方法的特點和適用范圍進行了分析比較，認為分類分區預測方法受人為因素影響太多，特別是對于缺乏歷史數據的新區進行負荷密度預測，往往不能得到滿意的結果，而基於神經網路和模糊演算法的聚類分析方法可以彌補這一缺陷。This platform is then used to study the temperature distribution and fluctuation of module ' s wall, the fluctuations of thermal control system, temperature and humidity in the cabin for the short and long cycles of the thermal environment changes. this thesis suggests a temperature control method for cooling loops, a temperature and humidity control method of the cabin air and simulates their effectiveness
用該平臺模擬了艙壁的溫度分佈及波動特點，研究了熱輻射環境的短周期和長周期波動及艙內熱負荷波動對熱控制系統及艙內空氣溫度、濕度造成的動態影響；給出了熱控迴路溫度控制方法，利用最佳去濕流量的概念提出了具有回熱流程的艙內空氣溫度、濕度控制方法，對控制效果進行了動態模擬。From the calculation for the system of refrigeration, the choice of equipment, to the calculation for the temperature field and velocity field, the emphases is building model for evaporator in static state and dynamic state, do calculation and analyse for the whole space with temperature field and velocity field
從製冷系統的負荷計算，設備的選型到溫度場和流速場的計算，其中重點是為蒸發器製冷劑側和空氣側參數建立穩態和動態數學模型，對整個冷庫的庫體空間進行溫度場和流速場的分析計算。The distribution gis data management methods and its application in distribution running are systematically researched, which compose distribution gis network topology analysis ( nta ) and optimal rush - maintain path ( orp ), and distribution planning, which composes distribution spatial load forecasting ( slf ) : ( 1 ) with systematic analysis on the relationship between spatial data model and spatial data structure, the distribution feature and the two common gis data models are analyzed, which are vector and raster data models. then the conceptual and logic data models of distribution gis are designed. the spatial data storage structure is given by using vector method, and their detailed data management methods are proposed
（ 4 ）將gis的空間信息分析功能應用於配網空間負荷預測（ saptialloadforecasting ， slf ）的研究：綜合利用灰色理論及遺傳規劃的優點，提出了一種根據饋線的歷史峰值負荷進行外推的組合slf法：首先採用負荷轉移耦合法來修正負荷歷史，消除由於負荷轉移引起的誤差；然後根據實際饋線路徑和配網gis圖形分層，運用圖層疊加分析得到饋線的實際供電范圍；接著採用灰色關聯度聚類方法對饋線負荷增長曲線進行聚類分析；最後採用遺傳規劃來對灰色聚類結果進行符號回歸，分別得到每一類曲線的最佳擬合曲線形式。This article emphatically discussed and analyzed following points : load command feed forward function can improve the rapid respond character of steam turbine generator ; lead of load command have advance control function on boiler main control and can highly improve the stability of main steam pressure ; the use of predict control and state space variable function can improve the quality of boiler steam temperature control effectively, control the steam temperature in the defined range and increase the boiler and turbine life and efficiency even if working state changed in a big range ; linear compensation can restrain the vibration of generator load in the condition of big loa d change
本文重點討論、分析提出負荷指令前饋作用可以提高汽輪發電機快速響應特性；負荷指令的導前功能對鍋爐主控有超前控製作用，能顯著提高主蒸汽壓力的穩定性；採用預測及狀態空間法能有效改進鍋爐蒸汽溫度控製品質，在大幅度工況變化下仍有效控制蒸汽溫度在額定范圍內，提高鍋爐、汽輪機壽命及其效率；汽輪發電機組的快速響應性與汽輪發電機組負荷振蕩問題間的平衡關系，採用線性補償可以有效抑制在負荷變化梯度較大情況下發電機負荷振蕩問題。The positive load take absolutely advantage in the first spatial pattern of year and seasons. especially that the precipitation field load of winter is all positive. not in the southwest of china because of southwest monsoon etc. system ; the characteristics of the second spatial pattern are that most of the area is taken up by positive load in year and four seasons, the west of talimu basin is the center of negative load of the year, spring and autumn vector fields ; east of zhungeer basin is the center of positive load of the third spatial pattern of year, spring, summer and winter, the center of negative load is often in east of chaidamu basin, but the distribution center of autumn is in east of zhungeer basin ; the distribution of the fourth spatial pattern is difficult to describe and forms several centers of positive and negative load ; several centers of positive and negative load also appear, the distribution of load fields of the fifth spatial pattern of year, spring and winter represents the situation of " +, -, + " from southeast to northwest ; the complexity of the sixth spatial pattern is more stonger than that of the fourth and the fifth spatial pattern, several centers of load fields of year and each season often appears inverse situation of the positive and the negative load. but the centers are still most in zhungeer basin, chaidamu basin and talimu basin
第一空間型中，年和四季都是正荷載占據絕對優勢，特別是冬季降水場皆為正值，只是西南地區由於受西南季風等系統的影響，表現為與其它地區的不同；第二空間型的特點如下：年和四季分佈皆為正荷載占據大部分區域，負荷載中心年、春季和秋季分佈中都是位於塔里木盆地西部地區；第三空間型正荷載高值中心除秋季外都是處在準格爾盆地以東地區，負荷載中心多在柴達木盆地以東地區，秋季卻處于準格爾盆地以東地區；第四空間型分佈就較復雜無章法可言，形成多處正負荷載中心；第五空間型特徵是這樣的，同樣是多個荷載中心出現，年、春季和冬季中的荷載場分佈從東南到西北大體呈現「 + 、 - 、 + 」的特點；第六空間型分佈的復雜程度較之第四、第五空間型更大，年和各季分佈比較中多個荷載中心常出現正負相反的情況，但中心仍以柴達木盆地、準格爾盆地和塔里木盆地為主。Abstract : in this paper, the characteristics of residential air - conditioning loads, the main technological ways, different heating & cooling scheme are discussed ; the good future of energy efficiency of buildings in the hot summer and cold winter area is expected as well
文摘:結合住宅建築空調負荷的特點，先分析了夏熱冬冷地區住宅建築節能的基本技術途徑，再從發展的觀點比較了該地區住宅的幾種冷暖方案的可行性。分享友人