了解火用的概念及其计算。
计算了一次蒸汽经减温减压后的火用损失。
The exergy loss of primary steam after temperature and pressure reduction is calculated.
结果表明(火用)损失和化学反应及传热速率成正相关。
The results show that the exergy loss is directly proportional to the rates of chemical reaction and heat transfer.
早期热经济学优化主要着眼于直接计算输入到系统的火用。
Previous works on thermo economic optimization mainly focus on directly calculating exergy input into the system.
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.
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.
分析表明，传热不可逆损失是火用损失的主要部分，占40%。
Further, the exergy analysis reveals that the irreversibility of heat transfer (40 percent) is the major source of exergy destruction.
最后对压载水加热处理法进行了(火用)分析，探讨了其优越性。
Then, the heat treatment method of the ships' ballast water was analyzed through exergy analysis, and its advantage was discussed.
指出了最大(火用)损设备，并提出了减少(火用)损的有效措施。
The maximum loss in exergy is pointed out and the effective measures to keep exergy from losing have been proposed.
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.
能量平衡和火用分析结果表明，该系统的燃料利用率可达86%以上。
An energy and exergy analysis shows that the overall fuel utilization efficiency of the proposed cogeneration system is more than 86%.
本文运用热力学和传递过程的理论，对流体流动过程进行了(火用)分析。
By applying the thermodynamic principles and transfer theories, the exergy analysis of flow of fluids is made.
根据某化肥厂合成氨系统中的低温甲醇洗工段的工艺，建立了(火用)分析模型。
A model of exergy analysis was established for rectisol section in the ammonia syn - thesis system of a chemical fertilizer plant.
单耗分析是在火用分析和火用经济学的基础上所设计的能量系统分析的理论和方法。
The unit consumption analysis is a theory and method of energy system analysis designed on the basis of exergy analysis and economics.
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%.
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.
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.
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).
为了充分利用液氢的低温火用，在氢能燃气轮机循环中附加了一个空气预冷器和氢气透平。
To fully utilize the low temperature exergy of liquid hydrogen, installed additionally in a hydrogen energy based gas turbine cycle is an air precooler and hydrogen turbine.
论文对透平制冷装置分别进行了热力分析和(火用)分析，从而得出如何获得最佳制冷效果。
Both thermodynamics analysis and exergy analysis of the refrigeration circle in turbine-compressor are accomplished in this paper, which leads to how to acquire the best effect of refrigeration.
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%.
阐述了钢铁工业特别是炼铁系统开展（火用）分析的意义，并建立了工序的（火用）分析模型。
The meaning of exergy analysis in iron &steel industry, especially in the system of ironmaking is represented and the exergy analysis model of process is established.
在已有的过程系统能量结构模型和（火用）经济模型的基础上，提出了一个系统的优化综合方法。
In this paper, based on the pre-established process energy structure model and process exergoeconomic model, a systematic optimization synthesis procedure is advanced.
为了提高对某热力厂室内蒸汽管网的监测和管理，以火用分析方法为基础，建立蒸汽管网的数学模型。
Aimed at effectively monitoring and managing indoor steam pipe network in thermal plant, mathematic model of steam pipe was constructed which based on exergy analysis method.
应用热力学第二定律对排气能量传递和转化进行分析，提出以(火用)差函数作为排气有用能的评价参数。
Exergy difference function (EDF) has been introduced as a merit parameter in the analysis of the transmission and transformation of available energy retained in the exhaust gases.
本文列出了换热器、加热器、冷却器等各类换热设备进行简化(火用)分析和精细(火用)分析的计算式。
This article lists the simple and fine Exergie analysis calculation formulas of heat exchangers, heaters. cooling devices and other heat exchange units.
利用热力学第二定律建立的火用分析方法，对核动力装置中主要的热量传递、作功与受功过程的不可逆性进行了分析。
Using the exergy based on the second law of thermodynamics, the irreversibility during the important heat transfer as well as input and output power processes inside a NPP are analysed.
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.
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.
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.
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