Combining with particle impact heat transfer model, DEM method is also used to systematically simulate the heat transfer process in fluidized bed at the level of particle.
将DEM方法与颗粒碰撞传热模型结合,在颗粒层次上对密相流化床内的传热过程进行了较为系统的数值研究。
According to the heat transfer of conduction, convection and radiation in between gas, kiln wall and clinker bed, established a one dimensional thermal model for the alumina clinker kiln.
综合考虑烟气、窑壁和料床间的传导、对流和辐射传热,建立了氧化铝熟料窑内一维传热模型。
In the study of heat transfer in CFB, most researchers focus on the heat transfer between the bed and the wall, few people attach importance to the gas-solid interfacial heat transfer.
在循环流化床内的传热研究方面,大多数研究者从事的是床层与换热表面之间的传热研究,而忽略了床中重要的气固两相间的传热。
Different heat transfer coefficients have been obtained from a series of experiments aimed to simulate the heat transfer to molten iron droplets in the coke bed of a cupola.
本文通过模拟研究,得出了冲天炉过热区内对铁水的四种传热方式的传热系数。
In the adsorption refrigeration system, three enhanced heat transfer models of tube adsorbent bed are designed.
介绍了吸附式制冷系统中吸附床的三种强化传热模型结构设计方案。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
在实际操作过程中,选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
Combustion and heat transfer character are the technical basis of combustion in circuiting fluid bed boilers.
燃烧和传热特性是循环流化床锅炉的燃烧技术基础。
The adsorption bed structure filling sorbent in tube and flowing heat transfer media out of tube was designed and the corresponding mathematical model was established.
设计了管内填充吸附剂,管外走传热介质的新型吸附床结构,建立了相应的数学模型。
The reaction characteristics of synthesizing methyl chlorsilane by direct method and the heat transfer of the fluid bed in the reactor were analyzed.
分析了直接法合成甲基氯硅烷的反应特点及反应器内流化床的传热过程。
It lays a foundation for modeling of flowing and combustion as well as heat transfer and abrasion of oil shale circulating fluidized bed boiler dilute zone.
同时为进一步建立适合油页岩的循环流化床燃烧室稀相区的流动、燃烧、传热、磨损模型奠定了基础。
In this paper, the heat transfer efficiency of the adsorption bed with different structure was studied with theoretic and experimental approaches.
通过改变液氮在传热过程中的流动状态,改善液氮与吸附床之间的热交换效率。
The model and results are helpful to reveal heat and mass transfer characters of the adsorbent bed and to provide theoretical basis for optimal design of this system.
该数学模型和计算结果有助于深入认识吸附床的传热传质特性,以期能为吸附床的具体设计提供理论依据。
Movement of bubbles and particles around tube immersed in a fluidized bed is closely re lated to tube heat transfer and tube abrasion.
气泡和颗粒在流化床水平理管周围的运动行为与埋管传热和埋管磨损关系十分密切。
The overall height of catalyst bed as well as the optimal feeding point was obtained for different detritiation efficiency under specific mass transfer coefficient of catalysts.
根据不同的催化剂传质性能,计算了为达到特定脱氚率和电解池浓缩倍数所要求的交换床总高度和进液位置。
Mass transfer kinetics of dehumidification in an adsorption bed during close air circulation have been investigated utilizing silica and 4a molecular sieves.
用硅胶和4a分子筛吸附剂进行气流封闭循环实验,对吸附床的除湿传质动力学进行了研究。
A mathematical model for the heat and mass transfer in the pyrolysis process of the biomass fuel bed was developed in this paper. Heat and mass transfer characteristics of the process were discussed.
通过分析生物质热解过程的传热传质特点,建立了生物质燃料层热解过程的传热传质数学模型。
The characteristic of mass transfer in absorption of soluble gas is studied in the rotating packed bed.
利用离心传质分离装置—旋转填料床,对易溶气体吸收过程的传质性能进行了实验研究。
This paper has put forward a new type of finned tubes impact gas-solid separator with enhancing heat transfer behavior which can be used in Circulating Fluldized Bed (CFB).
本文提出了一种应用于循环流化床,兼有强化传热的鳍片管束惯性分离器。
Hydrodynamics and mass transfer of triplet loop biological fluidized bed reactors were studied in terms of gas holdup, liquid circulation velocity and volumetric mass transfer coefficient.
从气相含率、液体循环速度和体积氧传质系数方面研究自行设计新型结构的三重环流生物流化床的流体力学与传质特性。
Adsorbent bed is the core component of adsorption refrigeration system, its heat and mass transfer performance has a direct influence on the refrigerating capacity of the system.
吸附床是吸附式制冷系统的核心部件,其传热传质性能的好坏直接影响到系统的制冷量。
Fluidized bed drier enjoys advantages of even solid particle mixing and large heat and mass transfer area of gas and solid phase.
流化床操作具有固体颗粒混合好,气固两相传热传质表面积大等优点。
Therefore, cross-flow rotating bed with protruded ripple plate packing have many merits of higher mass transfer efficiency, lower pressure drop and better kinetic balance.
多孔波纹板错流旋转床填料具有传质效率高、压降低、动平衡性好等优点。
It may be seemed that the heat transfer model presented in this paper would reflect the heat transfer process of the immersed tube in the fluidized bed combustion boiler.
说明本文所介绍的传热模型在一定程度上反映了沸腾燃烧锅炉内埋管传热过程。
The results of the oxygen transfer ratio test show that the oxygen transfer ratio of pipe-cone shape filter bio-bed can increase by 33.33 %.
通过氧转移效率试验表明,管锥形填料生物床可提高33.33%的氧转移效率。
The results show that the heat transfer coefficient of vapor-liquid-solid three-phase circulating fluidized bed evaporator is 1.5 times of the vapor-liquid two-phase evaporator's.
实验结果表明,汽-液-固三相循环流化床蒸发器具有良好的传热性能,其传热系数是汽液两相流蒸发器传热系数的1.5倍左右;
The result can explain not only the theory of enhancing the heat transfer but also preventing and cleaning the fouling in liquid-solid circulating fluidized bed exchanger heater.
所得的试验结果能够解释液—固流化床换热器的强化传热和防除垢机理。
The radiative heat transfer coefficients of the immersed tude within the operating conditions of the fluidized bed combustion boiler with low grade coal are also discussed.
文中尚对劣质煤沸腾燃烧锅炉中的埋管辐射放热系数进行了讨论。
It is complicated procedures that how to transfer the location of GPS to accurate survey point on sea-bed in geographic coordinate system.
如何将GPS位置实时推算至海底地形点位置、获取海底测点在地理坐标系中的精确位置是一套十分复杂的计算过程。
Fluid bed performs better than fixed bed for the combustion of toluene because of the disturbance and better heat transfer caused by bed materials;
流化床比固定床更有助于甲苯的分解,床料强化了炉内扰动和换热条件,有利于甲苯燃烧;
A new method is developed for measurement of local heat transfer coefficients around horizontal tubes immersed in an aerated vibrated fluidized bed.
提出了测试振动流化床与浸没水平管局部传热系数的新方法,就通气振动流化床与浸没水平管间的局部传热特性进行了实验研究。
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