The development, state-of-the-art and application of exergy concept to sustainability are discussed. Thermodynamic indicators, based on exergy, are proposed for the design and optimisation of energy systems. Efficiency of energy systems is determined using energy and exergy. This paper presents a methodology study of thermodynamic indicators for integrated sustainability assessment and its application to geotechnic system analysis. Information, obtained from thermodynamic indicators, is proposed to be used for managing the natural resources and reducing the environmental degradation caused by interaction between an energy system and environment. Life cycle analysis on the basis of exergy flow calculations is considered for assessment of total environmental impact on all stages of energy system life cycle. Integrated exergetic assessment, based on exergy analysis and thermoeconomics, is recommended for comparisons of alternative technical solutions and decision making for energy system design. Application of thermoeconomics to sustainable buildings is examined.
展开▼
