Performance Evaluation of Integrated Energy Systems

Abstract

The current literature on integrated energy systems for various applications is discussed and how energy systems are integrated for multigeneration purposes is explained. Three integrated energy systems, including renewable and non-renewable ones, are considered to enhance the analyses. A micro-gas turbine integrated system is selected as the non-renewable system while biomass and ocean thermal energy conversion based energy systems are considered as the renewable options. Exergy analysis is conducted to determine the irreversibilities in each component and the system performance. Furthermore, economic and environmental impact assessments of the systems are conducted, and the results are presented for each integrated system. The results show that the integrated energy systems have higher exergy efficiency compared to single generation unit and that the integration results in reduction of greenhouse gases emission. The performances of the three systems are compared, and the results show that the choice and benefits of integrated systems strongly depends on the priorities of the designers and engineers.Keywords Energy · Exergy · Efficiency · Integrated energy system IntroductionEnergy use is directly linked to well-being and prosperity across the world. Meeting the growing demand for energy in a safe and environmentally responsible manner is an important challenge. A key driver of energy demand is the human desire to sustain and improve ourselves, our families and our communities. There are around 7 billion people on Earth and population growth will likely lead to an increase in energy demand, which depends on the adequacy of energy resources. Increasing population

Modeling Energy-Efficient Consumption at Industrial Enterprises

“…The first one is a conventional technical and economic method that implies thermodynamic and economic factors to be analyzed successively (Tsatsaronis, 1999). The second one -the thermoeconomic method -is concentrated on thermodynamic and economic factors to be analyzed simultaneously (Querol et al, 2013;Ahmadi et al, 2014). These methods are radically different in the approach to resolving the optimization problem, and, therefore, they can be viewed as two independent techniques.…”