1) surface heat transfer coefficient
表面传热系数
1.
Concludes that the ratio of surface heat transfer coefficients under lower air pressure to that under normal air pressure is in direct proportion to 0.
从理论上分析了表面传热系数与气压的关系,实验测试了电加热器在低压与常压下的换热性能,得出以下结论:低压与常压下表面传热系数的比值与气压比值的0。
2.
Analyses the determination of surface heat transfer coefficient, interior building envelope load, air infiltration load, equipment load and heat storage load, etc.
分析了民用建筑舒适性空调负荷计算中表面传热系数、内围护结构负荷、渗透风负荷、设备负荷、蓄热负荷的确定等问题。
3.
Determination of heat transfer coefficient for corrugate pipe heat exchanger is discussed, and the method of separating surface heat transfer coefficient from heat transfer coefficient with genetic algorithm is put forward.
讨论了波纹管换热器传热系数的测定,提出了采用遗传算法将对流表面传热系数从传热系数中分离出来的方法。
2) heat transfer coefficient
表面传热系数
1.
Influence of varied heat transfer coefficient on grinding temperature field;
变化的表面传热系数对磨削温度场的影响
2.
As a result, an integral expression was obtained to calculate the condensation heat transfer coefficient of a single horizontal tube with annular fins.
以Nusselt理论为基础,运用三维坐标建立了肋片侧面的冷凝传热模型,对肋片侧面的冷凝传热机理进行了分析,得出了肋片侧面表面传热系数的积分表达式。
3.
Through analysis, the theoretical solution of the condensation heat transfer coefficient of horizontal tubes with annular fins is obtained.
本文通过理论推导,获得了水平环肋管外冷凝表面传热系数的理论计算公式,然后把理论值与实验值进行了比较。
4) surface heat-transfer coefficient
表面传热系数
1.
In this paper,the heat transfer of swirling impinging jet is numerically simulated,and the effects of injection aperture,injection distance,swirling angular velocity and flow-field distribution characteristics on the surface heat-transfer coefficient and the average heat-transfer effect are analyzed.
采用数值模拟方法模拟了旋转冲击射流的换热过程,分析了换热过程中喷射孔径、喷射间距、旋转角速度以及流场分布特性对冲击射流换热的表面传热系数与平均换热效果的影响。
5) outside film coefficient
外表面传热系数
6) the area coefficient for convection
区域平均表面传热系数
补充资料:辐射传热系数
分子式:
CAS号:
性质:流体对壁面或壁面对流体的辐射传热量以下式来计算:qR=εsCo(T4~Tw4)。qR为辐射传热热流密度,W/m2;εs为发射率;Co为黑体辐射系数,等于5.67×10-3W/m2·K4;T,Tw分别为流体与壁面的热力学温度,K。为了统一形式,将辐射传热公式改写成:hR称为辐射传热系数,单位与对流传热系数相同。
CAS号:
性质:流体对壁面或壁面对流体的辐射传热量以下式来计算:qR=εsCo(T4~Tw4)。qR为辐射传热热流密度,W/m2;εs为发射率;Co为黑体辐射系数,等于5.67×10-3W/m2·K4;T,Tw分别为流体与壁面的热力学温度,K。为了统一形式,将辐射传热公式改写成:hR称为辐射传热系数,单位与对流传热系数相同。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条