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Comparative analysis of supercritical CO2 Brayton cycles with simple and partial cooling configurations
(International Journal on Energy Conversion, 2020-09)
The theoretical analysis of the thermodynamic cycles and the physical processes that occur in a cyclical way has improved the knowledge needed to improve the energy efficiency and the performance of the energy transfer ...
Exergy, economic, and life-cycle assessment of orc system for waste heat recovery in a natural gas internal combustion engine
(Resources, 2020-01-01)
In this article, an organic Rankine cycle (ORC) was integrated into a 2-MW natural gas engine to evaluate the possibility of generating electricity by recovering the engine’s exhaust heat. The operational and design variables ...
Gestión del capital intelectual en la dirección de programa de ingeniería civil de la Unefa núcleo TáchiraIntellectual capital management in the direction of the civil engineering program of the Unefa núcleo Táchira
(Revista Aglala, 2020-12-17)
La gestión de intangibles en las organizaciones es un activo que está siendo perdido por organizaciones pequeñas y medianas, es por ello que el propósito de esta investigación fue describir las experiencias de los actores ...
Computational fluid dynamics analysis of combined cycle power plant heat exchanger with OpenFOAM® software
(International Review on Modelling and Simulations, 2020-10)
The heat exchangers application in combined cycle power plants is a key aspect in the thermal and fluid mechanics sciences due to their elevated functionality in industrial processes related to the quality and the efficiency ...
Exhaust gas heat exchanger design based on the engine backpressure and heat rate criteria
(International Review of Mechanical Engineering, 2020-10)
The use of shell and tube heat exchangers for waste heat recovery has shown excellent results in increasing engine performance, as well as offering a large surface area for small volumes, ease of cleaning, good mechanical ...
Sensitivity analysis applied to the thermodynamic diagnosis of combustion in a diesel engine with DIAGNO-DIESEL® software
(International Review of Mechanical Engineering, 2020-06)
At present, in order to mitigate the environmental impact of internal combustion machines and to increase their efficiency, it is necessary to carry out thermodynamic studies to predict their mechanical, thermal, and ...
A comparative study of the energy, exergetic and thermo-economic performance of a novelty combined Brayton S-CO2-ORC configurations as bottoming cycles
(Heliyon, 2020-07-14)
This paper presents a comparative study on the energy, exergetic and thermo-economic performance of a novelty thermal power system integrated by a supercritical CO2 Brayton cycle, and a recuperative organic Rankine cycle ...
CFD study of industrial safety valves in a virtual environment with OpenFOAM® software
(International Review of Mechanical Engineering, 2020-11-30)
Numerical advances in the numerical analysis of safety valves have enabled the development of approximated predictions related to the hydraulic behavior of turbulent flows, which influence the mechanical behavior of the ...
Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis
(Applied Sciences, 2020-06-27)
This investigation shows a traditional and advanced exergetic assessment of a waste heat recovery system based on recuperative ORC (organic Rankine cycle) as bottoming cycle of a 2 MW natural gas internal combustion engine. ...
Parametric analysis CFD of the hydraulic performance of a centrifugal pump with applications to the dredging industry
(Journal of Engineering Science and Technology Review, 2020-06-20)
The present study aims to use the analysis of CFD in a centrifugal dredge pump, to predict by mathematical correlations
the effect that changes in the main variables of the dredging process would have on the behavior and ...
