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总热导
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  “总热导”译为未确定词的双语例句
     3. The array structure with free-standing stencil cantilever was designed. The thermal isolation effect of array structure was theoretically analyzed, with the total thermal conductance of each pixel 1.73* 10'6 ( W/K ) .
     3)设计了全镂空悬臂梁阵列结构,对阵列结构的热隔离进行了理论分析,得到单元阵列的总热导为1.73×10~(-6)(W/K)。
短句来源
     The experimental results indicate that there are two factors that impact the total conductance of the system. The positive factor is the utilized area of condenser,while the negative one is the superheating of vapor in evaporator.
     实验结果表明有两个因素影响系统总热导变化——冷凝器有效冷凝面积(积极因素)和过热度(消极因素)。
短句来源
     Numerical examples were given to show the effects of the temperature ratio of the two reservoirs, the total heat exchanger inventory and the temperature ratio between heat sink and surroundings on the optimal performance of the refrigerator.
     采用数值计算分析了热源温比、换热器总热导以及高温热源温度和环境温度之比对该制冷机生态学最优性能的影响。
短句来源
     When the pressure decreases to lower than 10~ -2 Pa, the influence of gas conductance can be neglected, the total thermal conductance decreases to the limit of radiative conductance, and the random vibration noise of the cantilever is reduced to a minimum.
     当真空度小于1Pa时,总热导和光学读出噪声值的变化都趋于平缓; 当真空度小于10-2Pa时,空气热导的影响可忽略,总热导降低到微梁感热像素的辐射极限,光学读出噪声也降低到一极小值.
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  相似匹配句对
     The overall yield was 24%.
     收率24%。
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     the total yield was 51 %.
     收率为51%。
短句来源
     MATHEMATICAL MODELS OF REACTION KINETICS IN CONDUCTIVE CALORIMETER
     热导式热动力学的数学模型
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     Determination of Thermal Conductivity of Corn
     玉米热导率的测定
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  overall thermal conductance
However, metal wicks increase the heat leak from the evaporator to the compensation chamber, and hence reduce the overall thermal conductance.
      
Some of the remaining NCG will block part of the condenser and reduce the system overall thermal conductance.
      
The net effect is an increase of the loop operating temperature and a decrease of the overall thermal conductance.
      


The theory of finite time thermodynamics is applied to analyze the performance of irreversible air refrigeration cycles in this paper. For the fixed total heat exchanger inventory,the ratio of heat conductance of low-temperature side heat exchanger to that of high-temperature side heat exchanger is optimized for maximizing the cooling load and the coefficient of performance (COP) of the cycles. The influences of various parameters on the characteristic of the cycle are analyzed. The results obtained may provide...

The theory of finite time thermodynamics is applied to analyze the performance of irreversible air refrigeration cycles in this paper. For the fixed total heat exchanger inventory,the ratio of heat conductance of low-temperature side heat exchanger to that of high-temperature side heat exchanger is optimized for maximizing the cooling load and the coefficient of performance (COP) of the cycles. The influences of various parameters on the characteristic of the cycle are analyzed. The results obtained may provide guidance for the design of practice air refrigeration plants.

用有限时间热力学方法分析恒温热源不可逆空气制冷循环特性 ,在总热导率一定的条件下 ,研究最优制冷率、制冷系数时热导率的最优分配 ,并分析了各种参数对循环特性的影响 ,所得结果对工程制冷系统设计有一定的指导意义。

Some groundexperiments were carried out to study the operating principles,passive thermal control capability and the heattransfer characteristics of LHP.This paper presents some graphs of LHP's temperature distribution and variation with heat load for thermal analysis.The physical processes of LHP's heat transfer are described and explaned.Hysteresis of opertating temperature with heat load is shown and explained.The experiments also aimed at analyzing the law of the variation of LHP's conductance with heat...

Some groundexperiments were carried out to study the operating principles,passive thermal control capability and the heattransfer characteristics of LHP.This paper presents some graphs of LHP's temperature distribution and variation with heat load for thermal analysis.The physical processes of LHP's heat transfer are described and explaned.Hysteresis of opertating temperature with heat load is shown and explained.The experiments also aimed at analyzing the law of the variation of LHP's conductance with heat load.The experimental results indicate that there are two factors that impact the total conductance of the system.The positive factor is the utilized area of condenser,while the negative one is the superheating of vapor in evaporator.The influence of the relative orientation of evaporator and condenser on LHP's operation and its passive thermal control characteristics is discussed.The conclusion is drawn that gravitational force carries out negative effects on LHP's operating temperature,thermal control capability and its total conductance.

一倍重力条件下,通过一系列地面实验研究了回路热管的运行机理、温度控制及其传热特性。给出了回路热管温度分布及其随传热功率的变化曲线图。对回路热管的传热过程进行了分析。通过实验数据描述了工作温度随传热功率的变化规律并进行了解释。分析了回路热管热导随传热功率变化的规律。实验结果表明有两个因素影响系统总热导变化——冷凝器有效冷凝面积(积极因素)和过热度(消极因素)。讨论了蒸发器和冷凝器的方位对系统运行、温度控制特性的影响。得出反重力工作对回路热管的工作温度、温度控制性能、系统热导都会产生消极影响的结论。

The performance of closed cycle helium turbine nuclear power plant for submarine propulsion is optimized in the viewpoint of finite time thermodynamics (FTT) or entropy generation minimization (EGM) in this paper. The power output, the power dinsity (ratio of power output to the maximum specific volume in the cycle) and the thermal efficiency of the cycle are derived. The model adopted is an irrevarsible regenerated closed Brayton cycle coupled to variable temperature heat reservoirs. In the analysis, the...

The performance of closed cycle helium turbine nuclear power plant for submarine propulsion is optimized in the viewpoint of finite time thermodynamics (FTT) or entropy generation minimization (EGM) in this paper. The power output, the power dinsity (ratio of power output to the maximum specific volume in the cycle) and the thermal efficiency of the cycle are derived. The model adopted is an irrevarsible regenerated closed Brayton cycle coupled to variable temperature heat reservoirs. In the analysis, the heat resistance losses in the hot side heat exchanger (intermediate heat exchanger) and cold side heat exchanger (precooler) and the recuperator, the irreversible compression and expansion losses in the compressor and turbine, the pressure drop losses at the heater, cooler and recuperator as well as in the piping, and the effect of the finite thermal capacity rate of the heat reservoirs are taken into account. The maximum power, the maximum power dinsity and the maximum efficiency are obtained by searching the optimum heat conductance distribution among the hot and cold side heat exchangers and the recuperator for the fixed total heat exchanger inventory with respect to the corresponding optimization objectives. The optimum results are compared with those reported in recent references for the conceptual design of a closed cycle helium turbine nuclear power plant for submarine propulsion. The numerical example shows that the method herein is valid and effective. The theory, the method and the results herein may provide guidance for the performance improvement and optimum design of real closed cycle helium turbine nuclear power plant.

以潜艇用高温气冷堆氦气轮机循环为对象 ,用有限时间热力学理论和方法优化其性能 ,导出循环的功率、功率密度 (功率与循环中最大比容之比 )和热效率表达式 ,在高、低温侧换热器和回热器总热导率一定的条件下优化三个换热器热导率分配 ,得最佳功率、功率密度和热效率 ,并与文献中的概念设计方案性能作了比较。结果表明了本文方法的有效性

 
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