回收矿井余热的水源热泵技术是一种把低品位热能转化为高品位热能的一种新型节能环保技术。
Water source heat pump of mine waste heat recovery is a new type of high grade energy saving technology, which pump low-grade heat into high-grate thermal energy.
为了充分发挥热声发动机可利用低品位热能的优势，进一步降低系统的起振温度对热声热机的应用具有重要意义。
In order to take full use of energy of low quality, further decreasing onset - temperature of thermoacoustic engines may be an effective approach.
冷凝式锅炉的热效率提高潜力主要取决于燃料种类、锅炉本体的排烟温度、工艺流体的温度、所需的低品位热能的数量、过量空气系数等。
The potential for efficiency improvement depends mainly on the fuel type fired, the exit flue-gas temperature, the process fluid temperature, the low-level heat required, and the excess air etc.
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