因此在部分负荷较低的情况下，燃气机单级离心泵的一次能源利用率较低。
Therefore, in the lower part load, the gas engine heat pump at a lower energy efficiency.
基于工程实践参数，定量比较了城市污水源热泵与其他冷热源的一次能源利用率。
Study on key sectors of applying untreatment sewage water of city using as cool and heat sources;
烟气余热回收系统不仅降低了直燃机排烟温度，还提高了夏季直燃机的一次能源利用率。
The recovery system of residual heat from flue gas can reduce the flue gas temperature of direct-fired machine and increase the primary energy utilization rate of direct-fired machine in summer.
烟气余热回收系统不仅降低了直燃机排烟温度，还提高了夏季直燃机的一次能源利用率。
The recovery system of residual heat from flue gas can reduce the flue gas temperature of direct-fired machine and increase the primary energy utilization ra...
结果表明：燃气机热泵在供热时的一次能源利用率为1.76，(火用)效率为29.12%。
The results show, when heating, the primary energy ratio of GEHP is 1.76 and exergy efficiency is 29.12%.
对燃气机热泵的热力学第一定律、分析和能级平衡理论分析结果表明：其一次能源利用率可达1。
Results of the first law thermodynamics analysis, exergy analysis and energy grade theory show that the primary energy ratio of GEHP is 1.
分析了燃气机热泵系统的工作原理，给出了其一次能源利用率的计算式，指出了影响一次能源利用率的因素。
This paper analyzes the working principle of gas engine-driven heat pump system, presents the equation of primary energy ratio, and points out its influencing factors.
冷热电联产(CCHP)技术可提高一次能源的利用率，降低环境污染。
The technology of combined cold, heat and power (CCHP) could improve primary energy utilization efficiency, and reduce environmental pollution.
冷热电联产(CCHP)技术可提高一次能源的利用率，降低环境污染。
The technology of combined cold, heat and power (CCHP) could improve primary energy utilization efficiency, and reduce environmental pollution.
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