摘要
在考虑了冷却水入口水温的变化对加热器整体传热系数的影响基础上,利用效能—传热单元数法(ε-NTU法),建立了能量平衡方程和加热器的传热效能方程,从而解出了加热器出口水温,最后得到了加热器端差变工况时的基准值。
Considering the effect of the variety of cooling water inlet temperature on integral heat transfer coefficient K of heater, the energy balance equation and heater＂ heat transfer coefficient equation was built by using ε-NTU efficiency-heat transfer method, thus the effluent temperature of heater was obtained and the reference value was finally made for off-design characteristic of heater terminal difference.
出处
《热力透平》
2007年第4期222-224,240,共4页
Thermal Turbine
关键词
端差
传热系数
基准值
terminal temperature difference
heat transfer coefficient
reference value
