換熱面 的英文怎麼說
中文拼音 [huànrèmiàn]
換熱面
英文
heat transfer surface-
The circumfluence region near shroud makes for the heat transfer in that region
在盤腔外端固壁表面的迴流區有利於該區域的換熱。Miniature evaporator is a compact exchanger with small volume, light weight, and big heat transfer area per unit of volume. it is an important application in the field of cryogenics and refrigeration
微型蒸發器是一種體積小、重量輕、單位體積換熱面積大的緊湊式換熱器,在製冷低溫技術領域中有著重要應用。Heat exchangers within fluidized beds require relatively small surface areas.
流化床中換熱器所需面積較小。Heat exchange area
換熱面積mAt the same time of ensuing heat - exchange area and cooling effect, the condenser is matched perfectly with vehicle
在保證換熱面積及製冷效果的同時與主機車型達到最佳匹配Low temperature difference design is used to increase the exchange area, so shutdown is avoided in the high - temperatuer and high - humidity work environment
採用低溫差設計,正家換熱面積,更食慾高溫、高濕的工作環境,以避免高溫停機。At present there is a lack of fundamental data of dynamic thermal transfer performance of ground loop exchanger and energy - saving performance of gshp system
但有關埋地換熱器動態特性以及地源熱泵節能潛力方面的基礎性研究較缺乏。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。Two temperature on the kelvin scale are to each other as the heats trasnferred between the same two reversible adiabatic surfaces at these two temperatures
上式說明凱式溫度的定義是與在等溫面上一等溫過程由一可逆絕熱面轉換至令一個可逆絕熱面所吸收之熱量有關。由此定義的凱式溫標與物質的特性無關。The results indicate that : the high positioned air inflow do good to heat transfer in rotator disk ; different size of radial outflow have small effects on flow and heat transfer ; the heat transfer near rotating disk increases as rotating reynold number increases or non - dimensional mass flow rate increases
結果表明,高位軸向進氣對轉盤換熱有利;不同的徑向出口大小對盤腔內的流動換熱影響不大;隨旋轉雷諾數和無量綱質量流量增加,轉盤盤面的換熱效果增強。By quantitative calculation and analysis, this article will discuss the application in power plant of a new kind pipe - double sides micro - finned heat transfer enhancing tube, which is widely used in research due to its high heat transfer coefficient
雙側微肋強化換熱管是一種新型換熱管,由於其高換熱系數得到廣泛研究與應用,但對于換熱面較多的熱電廠來說應用還未見有報道。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。Heat exchanger inside the tank which provides more than 1. 2m2 of heat transfer area
水箱內的熱交換可以提供不止1 . 2m2的換熱面積。In the text thermodynamics and heat transfer calculation of the no - pump libr absorption refrigeration were performed, and carried out the values of various state point, the heat load and the areas of each apparatus
文中對無泵溴化鋰吸收式空調器進行了傳熱與熱力計算,給出了各個狀態點的參數和換熱面積。The optimum inclination angle is between 15 ~ 20, the length of thermosyphon will not change the phase - change heat transfer coefficient of the evaporation section and the condensation, which will enlarge heat transfer area of thermosyphon and increase the heat exchange capacity. the head - on speed of wind only stranger the heat transfer of the evaporation section and the condensation section. the experiment shows that the mathematic model closely fits to the thermosyphon, moreover, the one key to resolve the thermosyphon effect lies in decreasing the thermoresistance of evaporating section and condensation section. this study can provide directions and experience in the future research
傾斜角越大,熱虹吸管總熱阻越大,最佳傾角在15 20之間;充液率過多或過少都會對傳熱性能產生不利影響,對于本實驗採用的1 . 75m 、 2m 、 2 . 5m 、 3m熱虹吸管,最佳充液率在20 % 35 %之間;管長對傳熱也有影響,管長不改變熱虹吸管蒸發段和冷凝段的換熱系數,只增加了熱虹吸管的換熱面積,增大換熱量;迎面風速的大小,起到強化熱虹吸管蒸發段和冷凝段換熱的目的。According the characteristics of heat exchanger, the number of flow phases and the flow structure in the heat exchanger vary when heat transfer area, heat transfer coefficient or pressure change. subsection models was founded respectively, and that the simulation model has been set up through advanced continuous simulation language ( acsl ) correspondingly
針對換熱器動態工作過程中各相區的換熱面積、換熱系數、壓力的變化會引起製冷劑相區數目和相區組合發生改變的特點,分別建立了各種組合結構的數學模型,並運用acsl實現了它們的模擬模型。This paper has analyzed and synthesized the problems of burning heavy viscosity petroleum about injecting steam boilers in liaohe oil field. the heat balance experiments on injecting steam boilers burning heavy viscosity petroleum is made first. the main causes of low thermal efficiency and heat lose of flue gas are the poor effect of atomization and burning with old - fashioned oil nozzles, worse ash gathered on. heat exchange surface and high temperature of flue gas
本論文在分析綜述了遼河油田注汽鍋爐燃用高粘度稠油時存在的問題的基礎上,首先對燃用稠油的注汽鍋爐進行了正、反熱平衡試驗,分析了注汽爐熱效率偏低、排煙熱損失偏高的主要原因是原噴油嘴改燒高粘度稠油時霧化和燃燒效果差、換熱面積灰嚴重、排煙溫度太高。The values obtained from the optimum calculation are compared with that from the conventional calculation, and the result shows that, by means of the optimum design, under the given restrains, the pipe heat exchanger can operate well with a reduction of over 25 % heat transfer area
實例優化計算結果與常規計算結果的比較表明,優化設計可使管式換熱器在滿足給定約束條件下,節約25 %以上換熱面積,提高管程和殼程的流速,從而提高傳熱系數,最終得到操作、能耗和投資等方面的最佳經濟結構。Abstract : the in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
文摘:針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。The in servie tubular heaters built early in refineries and chemical plans have low thermal load and low heat efficiency, therefore measures for technical reform are offered, including ( 1 ) enlarging the surface area of convection tubes to increase the thermal load of rhe convection section ; ( 2 ) increasign the heat interchanging area of radiant tubes ; ( 3 ) changing the height of the chimney ; ( 4 ) using new burner with forced air supply to increase calorific capacityu ; ( 5 ) adding air preheater between the convection section and chimney to enhence the temperature of the air entering the furnace ; ( 6 ) adopting high temperature radiant coating to improve the effect of radiant heat interchanging
針對早期建造的煉油廠和化工廠在役管式加熱爐熱負荷和熱效率低的狀況,提出了若干技術改造措施包括,增大對流管表面積以增大對流段的熱負荷;增加輻射管的換熱面積;修正煙囪高度;換用新型燃燒器,變自然通風為強制供風,以增大燃燒器的發熱量,減小過剩空氣系數,節省燃料2 % 3 % ;在對流段和煙囪之間增設空氣預熱器以提高空氣入爐溫度;採用高溫輻射塗料增強輻射換熱效果,從而增加熱源對爐壁的輻射傳熱量和爐管的傳熱量等。分享友人