本文还对热泵干燥、电加热干燥、蒸汽加热干燥的一次能源消耗和能源费用进行了比较和经济评价。
The primary energy consumption and the energy cost of the heat pump dryer are compared with those of electrical heating dryer and steam-heating dryer and their economic evaluations are carried out.
不同室外温度下的燃气机热泵热负荷、供热量、发动机的余热量、系统一次能耗的变化关系。
Different outdoor temperature of the gas engine heat pump under the heat load for the heat, heat the remainder of the engine, the system changes in a power relationship.
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.
根据上海地区的气候条件和能源价格，燃气机热泵比电动热泵能节约至少23%的一次能源和11.3%的运行费用。
Based on the climate and energy price in Shanghai, gas engine driven heat pump can save about 23% primary energy and 11.3% running cost.
还表明应以整个供热系统的供热系数和一次能源利用系数来衡量各热泵系统的能量利用性。
The results also make it clear that heating coefficient and primary energy efficiency of whole heating system should be adopted to evaluate the energy utilization of each heat pump system.
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%.
进而对以燃煤锅炉为辅助热源的太阳能直接供暖系统与水源热泵的一次能源消耗进行了对比分析。
The primary energy consumption of a DSHS with a coal-fired boiler supplement source is compared with that of a WSHP.
指出在额定工况下，直燃机一次能效率要高于风冷热泵。
It is stated that the primary energy efficiency of DFAC is higher than ASHP under the rating condition.
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.
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;
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;
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