Increasing Thermal Efficiency: Methods, Case Studies, and Integration of Heat Exchangers with Renewable Energy Sources and Heat Pumps for Desalination

K Osintsev, S Aliukov, S Kuskarbekova, T Tarasova… - Energies, 2023 - mdpi.com
The article presents an overview of modern analytical methods and experimental studies on
the use of heat exchangers as part of different schemes, as well as technologies that …

Study of the piston secondary movement on the tribological performance of a single cylinder low-displacement diesel engine

JD Forero, GV Ochoa, WP Alvarado - Lubricants, 2020 - mdpi.com
The present study aims to analyze the secondary movement of the piston considering the
deformations present in the piston skirt, the hydrodynamic lubrication, and the effects of the …

Thermo-economic and sustainability assessment of two solar organic Rankine cycles in the United States

GV Ochoa, MV Chamorro, OC Silvera - Sustainable Energy Technologies …, 2022 - Elsevier
The use of renewable energy sources such as solar is being considered as a viable option
to produce thermal heat for electric power generation. In this manuscript, a comparative …

Experimental assessment of combustion performance in low-displacement stationary engines operating with biodiesel blends and hydroxy

D Mendoza-Casseres, G Valencia-Ochoa… - Thermal Science and …, 2021 - Elsevier
The global energy demand has motivated the investigation of profitable and environmentally
friendly fuels. In the present study, the effect of hydroxy gas in blends of Karanja biodiesel …

A comparative review of ORC and R-ORC technologies in terms of energy, exergy, and economic performance

S Damarseckin, SYJ Kane, A Atiz, M Karakilcik… - Heliyon, 2024 - cell.com
ABSTRACT This review examines Organic Rankine Cycle (ORC) technology, which
generates electricity using organic fluids at low temperature ranges. To enhance the …

Energy, exergy, and environmental assessment of a small-scale solar organic Rankine cycle using different organic fluids

GP Piñerez, GV Ochoa, J Duarte-Forero - Heliyon, 2021 - cell.com
This article presents an energetic, exergetic, and environmental (3E) analysis of a solar
powered simple Rankine Organic Cycle (ORC). The ORC is simulated using three organic …

Integrated geothermal energy systems for small-scale combined heat and power production: energy and economic investigation

P Morrone, A Algieri - Applied Sciences, 2020 - mdpi.com
Featured Application A geothermal integrated energy system for combined heat and power
production in a commercial centre is proposed. The suggested apparatus can be adopted …

Exergoeconomic and environmental analysis and Multi-objective optimization of a new regenerative gas turbine combined cycle

A Baghernejad, A Anvari-Moghaddam - Applied Sciences, 2021 - mdpi.com
Combined cycle systems have an important role in power generation. In the present study,
three different configurations of combined Brayton and Rankine cycle system are studied …

Thermoeconomic analysis of a combined supercritical CO2 reheating under different configurations of Organic Rankine cycle ORC as a bottoming cycle

GV Ochoa, JD Forero, JP Rojas - Heliyon, 2022 - cell.com
Supercritical Brayton cycles have been considered as one of the technologies that present
high thermal efficiencies in a wide range of energy conversion systems. Also, these systems …

Effect of the geometric profile of top ring on the tribological characteristics of a low-displacement diesel engine

J Duarte Forero, G Valencia Ochoa, J Piero Rojas - Lubricants, 2020 - mdpi.com
The present study aims to analyze the influence of the geometric profile of the compression
ring on the tribological properties of the lubricant. Additionally, the influence of the rotation …