为提高燃气机热泵的火用效率，应选用效率高的燃气发动机。
The gas engine with higher efficiency should be selected to raise the exergy efficiency of gas engine-driven heat pump.
该循环的比功、热效率、火用效率均较简单循环燃气轮机有很大提高。
Such a cycle enjoys a significant enhancement in specific power, thermal efficiency and exergy efficiency as compared with a simple cycle gas turbine.
火用评价结果表明，该系统稳定性好，运行成本低，年平均火用效率高，值得推广。
The result of exergy analysis shows that the TSHS runs at a steady course with low cost and high mean annual efficiency, which is worth promoting.
根据间接蒸发冷却过程的热力学特性，定义了间接蒸发冷却器的火用效率计算公式。
The exergy efficiency of indirect evaporative cooler is defined based on analyzing the thermodynamic performance of heat and mass transfer process.
结果表明，在较低的热源温度下，系统的热效率和火用效率可以达到30 %以上；
The results of the investigation show that under a relatively low heat source temperature the thermal and exergy efficiency of the system may attain in excess of 30%.
热效率和火用效率达不到设计值的原因，一是排烟温度超过设计值，二是空气系数偏高。
The low efficiency is caused by the rejection temperature exceeding the design value and the high air coefficient (oxygen content).
本文建立了喷流式换热器的火用效率计算模型，并通过实例计算，分析了各运行参数对喷流式换热器火用效率的影响。
The paper founded the efficiency computing model of jet heat exchanger and analyzed the effect of operating parameters on efficiency of jet heat exchanger by the calculation of examples.
对中冷再热注蒸汽燃气轮机(STIG)循环火用分析结果表明：中冷再热stig循环比简单STIG循环的火用效率显著提高。
The exergy analysis of an intercooled reheat steam injected gas turbine cycle has shown that such a cycle has a significantly higher exergy efficiency as compared with a simple STIG cycle.
指出为取得较高的（火用）效率，传热单元数和水当量比应仔细选择，它们有一最佳值。
The results show that in order to obtain higher exergy efficiency number of transfer unit(NTU)and capacitance ratio should be selected carefully for they have optimum values.
提高热媒炉(火用)效率的关键是降低燃烧过程和传热过程的炯损失。
The key for increasing exergy efficiency of heat medium heater is to reduce the lost of exergy during combustion and heat transfer period.
新循环的(火用)效率与参比循环相比提高了2.3个百分点。
The exergy efficiency of the new combined cycle is 2.3 percentage points higher than that of the reference cycle.
提出了全天最佳进口温度和全天最大(火用)效率的概念并结合实例作了计算。
The optimum entrance temperature for the whole day is defined, at which the exergy efficiency of the whole day is maximum through continuously regulating the entrance mass flow rates.
通过计算和分析，指出了提高(火用)效率的某些途径。
By means of the calculation and ana lysis, a certain ways to raise exergy efficiency are pointed out as well.
本文采用“（火用）效率”这一概念对莎中热电站从英周引进的SK15HE 热电联供装置的热能分级利用进行了分析。
This paper analyzes the stage-by-stage thermal energy utilization of the SK15HE cogeneration plant(imported from England)of Shazhong Thermal PowerStation by using the"exergy efficiency"concept.
通过(火用)平衡与热平衡的对比分析和热效率与(火用)效率的分析计算，论述了(火用)平衡能更科学、更准确地反映轮窑实际用能状况。
Through analysis and calculation of heat efficiency and Exergy efficiency, the paper proves this Exergy theory is far more accurate to reflect the actual feature of energy using.
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%.
结果表明，压缩机（火用）损失接近系统总输入（火用）的50%，床层（火用）损失接近30%，冷却器（火用）损失为9。 39%，废气带走的（火用）为5。 73%； 总（火用）效率为8。 51%。
It is showed that the exergy loss ofthe compressure is nearly50% of total input exergy and the bed column almost30% the coler 9.39% the waste gas 5.73% the total energy efficiency is only8.51%.
总结了各种换热器性能评价方法，讨论了间接蒸发冷却换热器的(火用)效率分析计算方法。
Evaluation methods for heat exchanger are discussed, especially for indirect evaporative air cooler. The calculation methods of exergy effectiveness and exergy efficiency ratio are researched.
结果表明：随着入射光强度的增加，空气进出口温差、热和（火用）效率是增大的，而电效率则有所降低。
Results show that the air temperature difference, thermal and exergy efficiency increase with incident solar intensity increasing, but the electrical efficiency decreases.
对半导体多级制冷器不同的设计方法作了介绍，提出了最大（火用）效率分析的设计方案，导出了各种设计方案的设计公式。
The theory of the maximal exergy efficiency analysis was discussed and the design formulae of the different design methods were deduced.
对换热器的热量(火用)损失和(火用)效率进行了分析。
Heat exergy loss and exergy efficiency of heat exchangers are analyzed.
在能量转移系统中，应该采用容积膨胀减压方式减少减压环节的可用能损失；合理利用低温排气的冷量火用可以提高气动发动机能量转移系统的总能量效率。
The expander can reduce exergy loss in pressure reducing process, and the utilization of cryogenic exergy of air-powered engine exhaust is useful to improve the total energy efficiency.
对天然气供热模式的热效率火、用效率及成本进行了分析。
The heat efficiency, exergy efficiency and cost of the natural gas...
对天然气供热模式的热效率火、用效率及成本进行了分析。
The heat efficiency, exergy efficiency and cost of the natural gas...
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