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。
Heat exergy loss and exergy efficiency of heat exchangers are analyzed.
对换热器的热量(火用)损失和(火用)效率进行了分析。
The results show, when heating, the primary energy ratio of GEHP is 1.76 and exergy efficiency is 29.12%.
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%。
By means of the calculation and ana lysis, a certain ways to raise exergy efficiency are pointed out as well.
通过计算和分析，指出了提高(火用)效率的某些途径。
The exergy efficiency of the new combined cycle is 2.3 percentage points higher than that of the reference cycle.
新循环的(火用)效率与参比循环相比提高了2.3个百分点。
Combustion reactions in a gas turbine are processes of high irreversibility, and therefore of lowe exergy efficiency.
燃气轮机中的燃烧反应是一种高度不可逆的过程，因此效率较低。
The gas engine with higher efficiency should be selected to raise the exergy efficiency of gas engine-driven heat pump.
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。
Exergy efficiency of a heat carrier boiler and its system has been analyzed, which gives the approach to make use of energy.
分别对钢瓶热载体烤漆系统和热载体炉进行了(火用)分析，为能源的综合利用以及提高能源利用率指明了方向。
The comparison between thermal efficiency and exergy efficiency of natural gas combustion and utilization process is introduced.
介绍了天然气燃烧利用过程的热效率与炯效率的比较。
The theory of the maximal exergy efficiency analysis was discussed and the design formulae of the different design methods were deduced.
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 key for increasing exergy efficiency of heat medium heater is to reduce the lost of exergy during combustion and heat transfer period.
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 relation between profit rate and exergy efficiency is discussed and the characteristic of profit rate versus exergy efficiency is loop-shaped.
讨论了利润率和效率之间的关系，其特性关系为扭叶型。
The exergy efficiency of indirect evaporative cooler is defined based on analyzing the thermodynamic performance of heat and mass transfer process.
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。
Following an analysis of its exergy efficiency, it is pointed out that natural gas can not be rationally utilized by such a way of energy consumption.
通过分析其效率，指出这种用能方式没有充分合理地利用天然气，提出了热能梯级利用的参考建议。
Such a cycle enjoys a significant enhancement in specific power, thermal efficiency and exergy efficiency as compared with a simple cycle gas turbine.
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。
At last, it is found that there exist optimal consumer temperatures, which can achieve double-maximum profit rate and double-maximum exergy efficiency.
最后发现分别存在最佳用户侧温度使得利润率和效率取得双重最大值。
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%.
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；
Results show that the air temperature difference, thermal and exergy efficiency increase with incident solar intensity increasing, but the electrical efficiency decreases.
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。
Then the steam extraction coefficients can be got by solving the equation, furthermore the exergy efficiency of the heaters. So the calculation procedure can be simplified.
解该矩阵方程可得到符合平衡关系的各级回热加热器抽汽系数，并在此基础上求得各级加热器的效率，从而简化了运用分析方法求解抽汽系数的过程。
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.
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。
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.
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。
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.
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 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.
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。
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.
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。
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.
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。
The results show that the efficiency of exergy utilization of this cycle is much superior to that of the Rankine cycle at the same border conditions of both heat and cooling sources.
结果表明，在相同的热源和冷源边界条件下，这一循环的利用效率远高于水蒸汽朗肯循环。
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%.
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%。
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.
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.
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。
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