送風量 的英文怎麼說
中文拼音 [sòngfēngliáng]
送風量
英文
air delivery-
In this paper, using phoenics software to compute and analyze the variety rule of the convecting transfer heat at the basis of computing and analyzing the temperature and velocity field of one underfloor supply air room with a focus hot source, and concluding that the number of the hot source and the supply air outlet > the intensity of the hot source and the volume of supply air will influence convecting transfer heat, and obtained its correlativity formula
本文針對一下部有集中熱源的地板送風空調小室,利用phoenics軟體,在計算分析小室內氣流的速度場及溫度場的基礎上,對對流熱轉移量的變化規律做了計算分析,最後得出對于下送風小室的對流熱轉移量與熱源的個數、送風口個數、熱源強度、送風量等因素有關,並且得出了其相關關系式。We used anemometers and copper constantan thermocouple respectively to measure velocities and temperatures of all measuring points under various air volumes within the room
用熱線風速儀、銅?康銅熱電偶分別測量出不同送風量下的室內各個測點的速度和溫度。The research results show that compared with the uniform inlet velocity profile, the exponential inlet velocity profile has more advantages to get lower contaminant concentration, to prevent patient and operating apparatus in the operating area from infection by airborne disease germs and to reduce the airflow rate needed for pollutant concentration control
研究表明,與通常採用的均勻風速的送風口相比,變化風速的送風口對于降低手術室工作細菌濃度,防止病人手術切口及手術器械等回風氣流攜帶的浮遊細菌再次感染,以及減少手術室的送風量等方面具有明顯的優點。Then the air distribution system of the above - mentioned hotel ' s multi - function - hall was simulated with fidap, and the indoor temperature and velocity under the preliminary option was calculated. under the half - load condition of small air - supply quantity and slow velocity, finds that the problem has arisen, which the cold jets fall too fast in summer and the air distributes layer upon layer in winter
然後應用fidap對上述旅館的多功能廳空調氣流組織初步方案進行了數值模擬計算,預測了該初步方案的室內溫度、速度分佈,發現在送風量和送風速度小的半負荷工況下,會出現夏季送風時冷射流過早下降,冬季送風時氣流分層分佈的現象。In this paper, we have discussed the influences of supply air temperature, supply air quantity, supply air turbulence, as well as mixing ratio of supply unit. all of above parameters are important for the extension of the adjacent zone. consideration of all the parameters is essential for a good system design which can ensure the advantage of displacement ventilation
本文研究了各種送風參數對鄰接區的大小的影響,結果表明:送風溫差、送風量、送風湍流度以及送風口的摻混量等因素對其都有重要影響,在設計時必須仔細平衡這些因素,確定合適的送風口和送風參數,才能使設計更加合理,充分發揮出置換通風系統的優勢。Genetic algorithm is used to optimize the parameters of pid controller that is used to control the plant lon ( local operating network ) is designed to control vav air - conditioning system. by this means the static pressure control and minimum total supply air volume control are experimented. the paper analyzes the coupling among loops, the whole system ' s stability and energy saving effect under the two control methods
針對目前變風量空調系統的模型都是用機理建模方法建立的情況,本論文用最小二乘法對機組部分進行系統辨識,建立了水閥?送風溫度、變頻風機?靜壓兩個迴路的模型,經驗證比較接近實際系統;採用遺傳演算法對pid控制器的參數進行尋優,尋優結果令人滿意;設計了變風量空調系統的lon控制網路,以此為實現手段,進行了定靜壓控制和最小總送風量控制,並在兩種控制方式下,分析了各個迴路的耦合情況、兩種控制方式的穩定性和節能效果。Hvac : 170t chiller, 5 " main pipe, totally 184, 000cfm air volume
空調:冰水主機170噸5 」冰水干管送風量184000cfm 。This system finished supervisory control of boiler burning, sampled signals through sensors and calculated the signals whether reached the best content of oxygen and the best wind - coal ratio. using it controls the quantity of coal, entering wind and sending wing for reaching the best thermal efficiency of burning and improving economy benefit of boiler running
系統對鍋爐燃燒進行監控,通過傳感器采樣信號,計算是否達到最佳含氧量、最佳風煤比,來控制給煤量、引風量和送風量,使燃燒達到最佳熱效率和提高鍋爐運行的經濟效益。A coke oven represents a kind of controlled object with a full spectrum of closely coupled factors, such as distributed parameters, no - linearity, time - dependent change and multi - variable features. among them, the discharge header pressure and fan suction are key parameters, and also constitute strongly coupled variables with very close inter - relation, which are fulfilled by the way of regulating coal - feeding and the rate of primary air supply in practice
焦爐是一個分佈參數,非線性、時變、多變量緊密耦合的被控對象,其中集氣管壓力和鼓風機吸力既是關鍵參數,又是具有緊密關系的強耦合變量,它們均是通過調節給煤量和一次送風量來實現控制的。The experiment acquired pressure distribution and circulating rate under three fluidizing velocity ( 3. 5m / s 、 4. 5m / s 、 5. 5m / s ) and different media load. an experimental equation was acquired between circulating rate and the distribution of the pressure. and the relation between the circulating rate and the opening rate of the valve connecting the returner and the ehe was carefully discussed as well as the relation between the pressure of the ehe and the flow rate of the fluidizing air
得到三種流化風速下( 3 . 5m / s 、 4 . 5m / s 、 5 . 5m / s )不同裝料量所對應的主床床體壓力分佈和物料循環量,得到循環量與壓力的分佈和流化風速的本實驗臺上的經驗公式,並通過測量返料器通向外置換熱器機械閥開度和返料量的關系,得到旋風分離器中下落物料進入換熱器和直接進入主床的比例關系,同時測得換熱器中壓力和送風量的關系。According to thermal state similitude model experiment of the langya mountain hydropower station, we adopt different velocity of air ventilation and exclude air proportion of upriver and downriver, this paper contrast the air distribution of the dynamo floor on each method, and educe the best projects of arch crest supply air that adapt to langya mountain hydropower station ’ s dynamo floor : g = 17. 4 10 ~ 4m ~ 3 / h, 22 vents, d = 600mm, the scale of volume 1 : 3, t0 = 16. 9. it ’ s also thought that improved any side of volume can reduce its temperature. when study on the air supply of langya mountain hydropower station ’ s underground dynamo floor by cfd software, it proved that cfd software is correct when compare with model experiment. when arrange the number of 5 kinds of vents, it concluded that the number of vents 14 to 22, it can ’ t change velocity, in 36 to 40 can lead to reduction of velocity. when vent in 14 to 36, the parameter kt doesn ’ t change, when the number is as large as 36, kt reduces
在此基礎上,模擬了5種風口布置方案和送風量的改變對發電機層溫度場和速度場的影響,獲得了些可供參考的結論:在風量和送風速度不變的條件下,風口個數在( 14 ~ 22 )小范圍變化時,工作區平均風速基本不變,大幅度增加風口個數( 36 ~ 44 )就會導致工作區平均風速的降低,風口數在14 ~ 36之間對工作區的溫度不均勻系數影響不大,當風口數> 36時,溫度不均勻系數隨著風口數的增多而變小,速度不均勻系數一直隨著風口數的增加而減少;在風口布置和尺寸不變的情況下,送風量變化時,工作區平均溫度隨送風量增大而降低,平均溫度的降低量逐漸趨于減少,能量利用系數先是隨著送風量的增加而增大,后隨送風量增加而減少。Through thorough analysis, we finally drew that on condition of experiment, square diffuser could ensure good air distribution when air supply volumes ranged from 40 to 50 percent or 80 to 100 percent of the maximum air supply volumes. when air supply volumes ranged from 50 to 80 percent of the maximum air supply volumes, square diffuser could not be very ideal with a variable air volume in a cooling mode
經過全面分析,最後得出主要結論:在實驗條件下,當送風量處于最大送風量的40 50或80 100范圍內時,方形散流器可滿足室內氣流分佈的要求;當送風量處于最大送風量的50 80范圍內時,方形散流器用於變風量系統供冷工況不理想。Make - up or, supply air must be provided in approximately equal to or a little bite less amounts than replace the kitchen air being exhausted
另外為防止廚房串味,應使排風量略大於送風量,以保持負壓。Abstract : this article lists some notices of the measurement points and their importance in cleanrooms, content focus on : indoor temperature measurement, humidity survey, exhaust air flow measurement, production line velocity measurement, inside and outside pure room differential pressure survey and the related test equipment for those measurement mentioned above
本文主要介紹了潔凈室里需要注意的幾個測量點和它重要性,內容包括:室內的溫度測量、濕度測量、送風量和排風量的測量、成品生產線上的微風速測量、潔凈室內外壓差測量等,以及與之配套的測試儀器選擇方法。This thesis designed and constructed a series of solid circulating loop devices, including cyclone separator, loop seal, external heat exchanger ( ehe ) and correspondent joining pipes. a data acquiring system was completed to realize the data real - time display and record the pressure of the whole system and air flow
設計和搭建了從爐膛頂部出口到底部進口的物料回送裝置,包括旋風分離器,返料器,外置換熱器和相關連接管道,編寫了數據採集程序實現數據實時顯示,並記錄整個運行中床體各點壓力、各處送風量。Meanwhile, we adopted air distribution performance index, temperature gradients and average velocity to evaluate and compare room air distribution under various air volumes
同時,用空氣分佈性能指標、溫度梯度以及室內平均速度對不同送風量下的室內氣流分佈進行了評價和比較。The paper studies the static pressure control and minimum total supply air volume control of vav air - conditioning system by experiment at present vav air - conditioning system are all modelled by the method of mechanism analysis
本論文對變風量空調系統中的定靜壓控制和最小總送風量控制進行實驗研究。The experiment ' s results show that the system is stable under the static pressure control and energy saving under the minimum total supply air volume control. although the terminal dampers ' s tuning time is prolonged under the minimum total supply air volume control, it can be reduced by adopting the appropriate sampling time when debugging the system. from all of this we can conclude thart the minimum total supply air volume control has a good application perspective
實驗結果表明,定靜壓控制方式下系統較為穩定,最小總送風量控制比定靜壓更加節能,但它延長了末端閥位的調節時間,在系統調試時,我們可通過選擇合適的采樣時間來縮短閥門的調節過程,所以最小總送風量控制具有廣闊的應用前景。It was analyzed the variables in the thermal comfort control in train air - conditioning by fuzzy control technique and get the air temperature as the parameter by directly control
對熱舒適控制中的各變量進行了分析,採用模糊控制技術,選擇空氣溫度作為直接受控的參數,並通過調節送風量來實現。Because the basic principle of variable air volume system is to meet the comfort conditions indoor by varying air flow rates, air distribution is rather important
由於變風量系統是通過改變送風量來滿足室內舒適要求的系統,所以氣流分佈對于變風量系統是相當重要的。分享友人