FUNDAMENTAL OF THERMODYNAMIC CONSISTENCY OF EXERGY FUNCTIONS

ZHENG Danxing; WU Xianghong; ZHENG Dashan

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FUNDAMENTAL OF THERMODYNAMIC CONSISTENCY OF EXERGY FUNCTIONS

更新时间：2025-12-10

- FUNDAMENTAL OF THERMODYNAMIC CONSISTENCY OF EXERGY FUNCTIONS
- CIESC Journal Issue 7, (2002)
- 作者机构：
  
  北京化工大学化学工程学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 July 2002，
  
  Published：25 July 2002
- 稿件说明：
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ZHENG Danxing, WU Xianghong, ZHENG Dashan. FUNDAMENTAL OF THERMODYNAMIC CONSISTENCY OF EXERGY FUNCTIONS[J]. CIESC Journal, 2002, (7).
DOI：

ZHENG Danxing, WU Xianghong, ZHENG Dashan. FUNDAMENTAL OF THERMODYNAMIC CONSISTENCY OF EXERGY FUNCTIONS[J]. CIESC Journal, 2002, (7). DOI：

摘要

近年来

随着国家能源利用技术、环境保护技术水平的提高

作为一个重要而有效的理论工具

火用分析方法已经从一般的过程能量分析发展到过程经济评价甚至过程的环境影响评价

即所谓过程可持续性评价的定量化分析 .给出了体现热力学一致性的火用函数普遍化基础表述及计算原理

强调火用分析采用合理的环境参考态模型、统一的热力学标准性质数据以及适宜的热力学模型的重要性 .基于ISO 136 0 0系列能源系统标准(1999～ )的概念和IUPAC的化学热力学标准压力的规定

基于国际上具有权威性的最新化合物标准生成Gibbs函数数据等修正了龟山等人提出的热力学平衡环境参考态模型 .修正模型由 2 98.15K和 1bar下的大气圈、水圈和地壳岩石圈中的选定基准物体系所组成 .提出了一个包含 80种常见化学元素标准火用数据体系 .另外

给出的氨水均相混合物计算实例表明

物质标准火用的数值是混合物火用函数的最主要构成

其数值处理中的微小偏差都会对火用函数计算结果产生很大影响.

Abstract

Exergy analysis has been extended from general energy analysis to thermoeconomic analysis and environmental analysis

i.e.

sustainability analysis.Some fundamental studies of exergy analysis become more important.This research emphasizes the importance of the strict concept of standard state and the new values of standard thermodynamic properties.Based on the concept from the ISO 13600 series standards of the technical energy system

the IUPAC’s rule about thermochemical standard properties

and the up-to-date and authoritative data of the Gibbs free energy of standard formation

the model of environmental-reference-state by Kameyama et al is modified

which consists of selected standard compounds at 298.15K and 1bar in the atmosphere

hydrosphere or geosphere.A new data system of the element standard exergy involving 80 kinds of ordinary elements is proposed.In addition

the example of a homogenous liquid mixture of ammonia and water given in the paper suggests that standard exergy is the principal value of exergy function of the mixture.

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