An energy flow model of an airport terminal’s HVAC system is established in this paper. Based on energy flow model, the exergy efficiency, exergy loss and exergy cost distribution ratio of each component are calculated and analyzed by the energy flow model. Optimization method and exergy balance equations are used to calculate the lowest exergy loss of HVAC system under different operation cond...

The French energy market is highly reliant on nuclear power. Several factors pressure for a phase-out of this technology, but finding an environmentally and economically competitive substitute not easy. Renewable sources are candidate, full deployment in the residential sector could significantly reduce nuclear-based electricity production France. In paper, we assess multicriteria competitivene...

Given the likelihood that carbon-based fuels will continue to play a major role in electricity generation, carbon capture and storage systems will be a necessary part of future generating capacity. With this research project, we aim to develop a framework for quantitative evaluation of existing and proposed carbon-capture technologies. This framework is based on an exergy-based systems analysis...

The solar air collector assisted source heat pump is demonstrated to be an efficient clean heating technology, while the research on its working modes, and corresponding energy, exergy, economic, environmental (4E) analysis insufficient. In this study, a novel triangular (TSAHP) for building proposed, three modes including preheating, series parallel are illustrated. energy model established us...

-This paper reviews some leading novel energy conversion approaches which are aimed at improving power generation efficiency and/or reducing harmful emissions. Some of the concepts used for cycle improvement are higher top temperatures, improved combustion systems, evasion of the Carnot limit by integration with fuel cells and direct nuclear energy conversion to power (the nuclear generator), r...

This work evaluated the possibility of generating electricity from flared gases through application combined power cycle (Organic Rankine and Brayton circle) which was simulated using Aspen Hysys. The data for stimulation obtained literature in terms process plant operating conditions. results simulation were presented material balance, energy costing, sensitivity analysis exergy analysis, is o...

Solar energy is one of the most promising strategies to reduce consumption and emissions pollutions. In this paper, integrating a combined cycle power plant with Parabolic Trough Collector (PTC) evaluated investigated. regard, Qom Combined Cycle Power Plant considered real case study in city. Energy, Exergy, Exergoeconomic, Exergoenvironment, Emergoeconomic, Emergoenvironemntal Analysis as (6E)...

This study is focused on enhancing secondary vapor entrainment and direct-contact condensation in a water jet eductor for the purpose of developing compact, medium-scale desalination system. It encompasses an extended investigation as condenser, or heat exchanger, entrained phase. Exergy study, experimental measurement, computational analysis are primary methodologies employed this work. The ta...

This work applies the second-law analysis of thermodynamics to quantify the exergy destruction of the components of screw liquid chiller, and to identify the potential for each component to contribute to improve the overall energy efficiency of the system. Three screw liquid chiller units were built to demonstrate the feasibility of the model presented herein. Unit A was a 100 RT water-cooled s...

The necessity for decrease in consumption of conventional fuel, related energy and to promote the use of renewable sources such as biofuels, demands for the effective evaluation of the performance of engines based on laws of thermodynamics. Energy, exergy, entropy generation, mean gas temperature and exhaust gas temperature analysis of CI engine using diesel and karanja methyl ester blends at d...