同程与异程采暖系统在节能方面的比较

利用对比沿程水头损失及局部水头损失的方法，分析了同程系统和异程系统的总体能耗，得到同程系统的能耗小于异程系统的结论，并进一步推广同程系统的使用，以达到节能的目的。

Comparison of the energy saving in direct return heating system and reverse return heating system

Based on the comparison of the head losses along the way and the method of partial head losses,the author analyzes the total energy consumption of the direct return system and reverse return system,gets the conclude that the energy consumption of the direct return system is less than the energy consumption of the reverse return system,and further promote the application of the direct return system,so as to reach the goal of energy saving.