1) convection features
传热特点
1.
The analysis of the convection features of radiant floor heat and its arrangement lead to the conclusion that the development of radiant floor heat in place of traditional way reprensents the direction in which heat supply goes in our country.
通过对地面辐射供暖的传热特点、铺设方式等进行分析,认为发展地面辐射供暖方式代替传统供暖方式是我国供暖事业发展的必然趋势。
2) characteristic of heat transfer model
传热模型特点
3) heat transfer pinch point
传热窄点
1.
The research on heat transfer pinch point (between refrigerant and heat-transfer fluid) was carried out in a condenser with air-conditioning operation to investigate the change in temperature difference from condenser inlet to outlet and to avoid the occurrence of pinch point.
为了揭示15种常用非共沸制冷剂在空调工况下冷凝器中的传热窄点特征,探明它们和换热流体间温差的沿程变化规律,以及如何防止传热窄点的产生,进行了相应的理论分析。
2.
To reveal heat transfer pinch point characters of zeotropic refrigerants in evaporator with air-conditioning operation,understand the rule of temperature difference(between refrigerant and heat-transfer fluid)changing and avoid the pinch point,some researches were carried out.
为了揭示15种常用非共沸制冷剂在空调工况下蒸发器中的传热窄点特征,探明它们和换热流体间温差的沿程变化规律,以及如何防止传热窄点的产生进行了理论分析,建立了制冷剂的蒸发换热模型,明确了蒸发过程中传热窄点产生的条件,并根据标准的空调工况确定了15种制冷剂的蒸发物性参数;然后,利用制冷剂状态方程得到蒸发过程中温度与焓值的对应关系,并分段计算了焓随温度的变化率进而得到15种制冷剂蒸发过程中发生传热窄点现象的机率;以R409A和R407D为例,计算了制冷剂和换热流体在蒸发过程中的温度分布;最后针对2种可能发生传热窄点现象的制冷剂给出了换热流体温差控制范围。
3.
This paper proposes a method, which is based on heat transfer pinch point, for the selection of zeo-tropic mixtures to be used in the same work condition.
为了解决多种非共沸工质的优选问题,提出了一种基于传热窄点的分析方法。
4) hot spot of medium
传媒热点
5) characteristic of force transmission
传力特点
6) infectious feature
传染特点
1.
In the light of the infectious features of SARS virus and corresponding measures that should be taken by the people, this paper sets up two mathematical models for its infection, one of which is continuous type model and the other of which is discrete type model.
针对SARS病毒的传染特点与人们采取的应对手段,对其建立了连续型与离散型两种传染的数学模型。
补充资料：传热
分子式：
CAS号：
性质：见热传递
CAS号：
性质：见热传递
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