Resource efficiency analysis is an important tool in the chemical sector to evaluate performance of new process concepts. However, such does not account for renewability and circularity resources. Therefore, a resource use analysis, including those two aspects, proposed this paper. A indicator recovery were calculated as measure circularity, respectively. In addition, was determined at differen...

The purpose of this study is to comparatively evaluate four types of advanced conceptual power plants based on coal. With efficiency, costof-electricity, and emissions as main criteria, the evaluation was made under consistent design conditions and economic assumptions. The plants considered are a supercritical steam power plant (SC 580◦C), an indirectly coal-fired power system (HIPPS), an adva...

The analysis of complex thermodynamic systems with exergetic and 2nd law methods is continually performed for various fields of engineering. This also applies to environmental control systems (ECS) of aircraft. This paper focuses on methods of exergy and energy analysis applied to ECS. It gives a survey of the published material and identifies the state of the art. Furthermore, this analysis in...

Due to the necessity of using highly efficient power generation systems to reduce fuel consumption and air pollution, the integration of different energy systems is promising modification to achieve higher efficiency. In this paper, the integration of an Internal Reforming Solid Oxide Fuel Cell (IRSOFC)-Gas Turbine (GT)-Organic Rankine Cycle (ORC) system has been proposed. In this regard, therm...

The use of air-source heat pumps (ASHP) is increasing to meet the energy needs residential buildings, and manufacturers equipment have permanently expanded range work improved efficiency in very adverse outdoor air conditions. However, time a wide different technologies, problem using ASHP, from techno-economic point view, constantly present. Exergetic exergoeconomic cost no longer provide suff...

The most widespread approaches to the study of thermal systems involve iterative implementation following steps: thermodynamics, heat and mass transfer, hydrodynamics, economics ecology. Such methodology cannot combine economic, environmental thermodynamic aspects from beginning analysis. It does not provide information concerning only external, but also internal, caused by inefficiencies syste...

This paper deals with the key aspects of exergy analysis H2O/LiBr absorption refrigeration cycles where, instead agreement, disparity opinion exists among researchers. As a result, comparisons literature are often difficult or meaningless. Based on an in-depth review, issues highlighted were: a) identification dead state, b) calculation currents, and c) definition efficiency devices overall sys...

Cogeneration and trigeneration systems have been broadly employed as part of the strategies oriented toward rational energy use. The assessment these must include simultaneous considerations costs, irreversibility, losses, their causes. This work presents a step-by-step thermoeconomic analysis microcogeneration unit, composed an internal combustion engine ammonia-water single-effect absorption ...