结果表明，提高对流传热系数是提高膜蒸馏热效率和渗透通量的关键。
It appears that improvement of convective heat transfer is very important for enhancement of flux and heat efficiency.
分析了影响管式加热炉热效率的因素，主要包括过剩空气系数、不完全燃烧、排烟温度等。
Influencing factors on heat efficiency of tubular heaters are analyzed, which mainly include excess air factor, imperfect combustion and exhaust temperature.
维持过剩空气系数在最优值附近，能够有效提高常压加热炉的热效率。
It can improve thermal efficiency effectively by keeping excess air coefficient at optimal value.
应用推荐