第一种是自行改进设计的绕丝针翅管。
The first tube was winded pin-fin tube which was improved and self-designed.
本文采用Fluent对针翅管换热器进行了数值模拟研究。
The heat exchangers with pin finned tube have been simulated by means of FLUENT.
介绍了新研制的一种新型换热元件—针翅管的结构及其强化传热原理。
This paper introduces the structure and the intensified heat-transfer mechanism of pin-finned tube, a recently developed new type heat-exchanging element.
采用实验研究的方法，分别对针翅管，平直翅片管和光管在同一风洞实验台上进行了实验。
This paper studies the pin-fin tube, smooth tube and finned tube on the same wind channel test apparatus through experimental method.
单管的实验研究证实，选用合理的绊条扰流结构，可使环翅管的绕流阻力降低40％，换热增强10％。
An experimental investigation showed that compared with a general external fins pipe, the new way can reduce the drag more than 40% and enhance the heat transfer about 10% meanwhile.
由于针翅管换热器内部结构的复杂性，以往的研究大都集中在实验研究上，在数值模拟方面的研究较匮乏。
Because of the complicated configuration of the heat exchangers with pin finned tube, previous studies focused on their experiments and there are no many researches on their numerical simulations.
本文最后对采用针翅管的传热设备的实测数据进行分析来说明采用针翅管作为对流受热面所取得的实际效果。
Finally, this paper analyses the data which are measured in new heating transfer appliance with the pin fins tubes and explains the effect of using the pin fins tubes for convection heating surface.
HIMOD系列旗舰型采用了交互“V型”盘管，采用了带内螺纹的铜管及冲缝型翅片，比采用传统式盘管的机组有更高的传热效率。
HIMOD flagship series USES interactive "type v" coil, the internal thread copper tube and punched slotted fin, and heat transfer efficiency is higher than the traditional coil unit.
盘管的标准型式均为铜管串铝翅片结构，采用机械胀管。表冷段设计有倾斜式排水盘，保证彻底排尽水盘中的凝水。
All standard coils are mechanically expanded copper pipes plus aluminum fins. The surface cooling section is equipped with a pitched discharge coil to ensure complete discharge of condensed water.
然后通过三种限制条件对不同翅片间距、不同管排数和不同管数下的换热板芯的传热性能进行了比较。
The comparison of heat transfer performance with three different fin spacing, three different Numbers of tube rows and three different Numbers of tubes under three constraints is carried out.
为了考察这类翅片的性能特征，对9种不同几何参数的单排肋管式换热器样件在吸风式直流热风洞内进行了实验。
To investigate the performance characteristics of these fins, 9 single row finned tube heat exchangers sample were tested in a suction opened circuit thermal wind tunnel for a number of geometers.
山东大学能源与动力工程学院做过一些相关的研究工作，主要是单管翅片间浓度场和速度场的研究。
Some research about the concentration and velocity between two adjacent fins has been observed by researchers of Energy Source and Power Engeering School of Shandong University.
通过实测的运行数据，对板翅式换热器和管式换热器的性能进行了对比。
Comparation on the performances of the plate-fin and tube heat exchanger is made according to the base datas from power plant.
在实验范围内，花瓣管翅片高度的增加、翅间距的减少都有利于传热强化性能的提高。
Within the range of experiment, increasing fin height or decreasing spacing of fins of petal-shaped fin tube is helpful to improve the performance of heat transfer enhancement.
禾谷缢管蚜无翅蚜对小麦挥发物的嗅觉反应多强于有翅蚜。
Olfactory responses ofR. wadi apteral to wheat plant volatiles were higher than alate.
目前热回收器的类型有板翅式、管式、热管式及转轮式等热回收器。
At present, the types of heat recoverer have the plate heat recoverer, the tubular heat recoverer, the heat pipe heat recoverer and the rotary heat recoverer.
第二部分为比较传统的管翅式换热器和微通道换热器在压缩冷凝机组中的应用。
Part Two compares the traditional tube-fin heat exchanger and the microchannel heat exchanger used in compressor condensing unit.
矩形翅片椭圆管，即双排管是直接空冷凝汽器的一种基本换热元件。
The elliptical tube with rectangular plate fin, which is usually called double row tube, is one kind of basic heat exchange element for direct air cooled condensers.
扩头蔡白蚁生殖蚁的侧输卵管直径与长度的比例和输精管直径与长度的比例明显大于黑翅土白蚁（P<0.01）。
The ratio of the diameter and length of the lateral oviduct and seminal duct of reproductive individuals in T. ampliceps was larger than in O. formosanus (P<0.01).
然而翅片高度、翅片夹角和管排间距则对翅片管的散热性能影响很大，分别存在最优的几何尺寸。
However the fin height, fin Angle and distance of finned tube have the large influence to the finned tube heat, all of them exist the optimal geometrical dimensions.
模拟结果表明，热管的管径，管长，管间距和翅片结构均影响热管换热器的换热效率和压力降。
The simulation results indicated that heat pipe diameter, pipe length, tube pitch and fin structure had influence on the efficiency and pressure drop of heat pipe exchanger.
每个管从而形成了各单项分泌细胞的分泌物小型水库，小说在社会膜翅目腺体分泌的结构性安排。
Each duct thus forms a miniature reservoir for the secretions of each single secretory cells, a novel structural arrangement in exocrine glands of social Hymenoptera.
H型鳍片管换热器是一种新的翅片型式的换热器，具有较高的强化传热能力和优良的不积灰性能，其应用日趋增多。
So it has great practical significance to study the heat transfer and friction characteristics of the H-type finned tube heat exchanger.
运 噪资管采用新型翅片资资， 资特殊防资资理，大大降低资阻， 少资机消耗；
The coil features a new type of specially processed antirust fins which can greatly reduce air resistance and motor power consumption.
通过实测的运行数据，对板翅式换热器和管式换热器的性能进行了对比。
Evaluation methods to heat transfer enhancement performance in shell of shell and tube heat exchanger;
通过实测的运行数据，对板翅式换热器和管式换热器的性能进行了对比。
Evaluation methods to heat transfer enhancement performance in shell of shell and tube heat exchanger;
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