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 ...

In today’s scenario, ensuring sustainability of energy system particularly in the field power generation is a major concern, and this regard, exergy analysis widely accepted tool. For purpose, first, comprehensive performance carried out between two gas turbine plants, i.e., GT2 (case I) GT1 II) using various parameters. Further, evaluation three cases; I), CCPP III) different indicators such a...

The aim of this study is to analyze the exergetic, environmental, and economic impact electrification a bio-refinery plant, considering application Mechanical Vapor Compression (MVC) conventional water–ethanol distillation column in context bioethanol production. process was implemented AspenPlus® Aspen Exchange Design Rating (EDR) simulation environments, where sensitivity analysis also carrie...

This research investigates the effects of a synthetic diesel-like fuel (Fischer-Tropsch diesel) and biofuels (ethanol biodiesel) blends on energy-exergy efficiencies gaseous exhaust emissions characteristics compression ignition engine. Two alternative fuels denoted as E15B35FTD50 (15% ethanol, 35% biodiesel, 50% Fischer-Tropsch E15B35D50 were experimentally studied single-cylinder diesel engin...

In this paper we undertake the theoretical analysis of a two-stage semiconductor thermoelectric module (TEM) which contains an arbitrary and different number of thermocouples, n1 and n2, in each stage (pyramid-styled TEM). The analysis is based on a dimensionless entropy balance set of equations. We study the effects of n1 and n2, the flowing electric currents through each stage, the applied te...

This research presents the energy, exergy, economic, and environmental assessment, multi-objective optimization of a flash-binary geothermal CCHP cycle. A sensitivity analysis production well inlet temperature cooling to power flow ratio on exergetic, parameters was conducted. Furthermore, effects inflation rate plant working hours economic were investigated. Results showed that increasing harm...