欢迎访问《农业工程》杂志社！ 关键词： 太阳能；热利用系统；建筑一体化[gap=252]Key words： Solar energy，Heat utilization system，Integration of building
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However, with the lower load factor, engine speed is limited to the minimum speed run, part of the system for the heat is wasted, a lower utilization.
但随着负荷率的降低，发动机转速被限制在最小转速下运行，系统的一部分供热量被浪费，一次能利用率降低。
With the waste heat being put to use the energy utilization rate of the whole system can surpass 80%.
加上利用的余热，整个系统的能量利用率可以超过80 %。
This paper makes an approach to technological process for and solution of problems in utilization of plenty of waste heat generated after adjustment of roasting and acid making cooling system.
探讨了焙烧、制酸冷却系统调整后，产生的大量热能回收利用的工艺、流程及存在问题的解决方案。
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