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Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry

Orjuela Abril, Martha Sofia ; Torregroza Espinosa, Ana Carolina; Duarte Forero, Jorge (Sustainability (Switzerland), 2023-03-24)

This research studies the current state of the Colombian industrial sector, which is focused on self-generation processes. The study’s objective is to search for viable technological strategies that strengthen this ...
Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis

Cárdenas-Gutiérrez, Javier Alfonso; Valencia Ochoa, Guillermo; Duarte Forero, Jorge (Applied SciencesSuiza, 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. ...
Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids

Valencia, Guillermo; Rojas Suárez, Jhan Piero; Acevedo Peñaloza, Carlos Humberto (Applied SciencesPekin , China, 2019-10-25)

This paper presents a thermo-economic analysis of a simple organic Rankine cycle (SORC) as a waste heat recovery (WHR) systems of a 2 MW stationary gas engine evaluating different working fluids. Initially, a systematic ...
Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine

Valencia, Guillermo; Acevedo Peñaloza, Carlos Humberto; Duarte Forero, Jorge (EnergiesSuiza, 2019-10-31)

To contribute to the economic viability of waste heat recovery systems application based on the organic Rankine cycle (ORC) under real operation condition of natural gas engines, this article presents a thermoeconomic ...

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Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry
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Orjuela Abril, Martha Sofia | 2023-03-24

This research studies the current state of the Colombian industrial sector, which is focused on self-generation processes. The study’s objective is to search for viable technological strategies that strengthen this particular sector’s competitiveness and sustainable development. The analysis shows that internal combustion engines represent 49% of the technologies used for self-generation. The main fuel used in the sector is natural gas, with a percentage of 56%. The lack of strategies for the use of residual heat and technological inefficiencies caused a loss of 36% in the energy used in the Colombian industrial sector. Thermoelectric generators are a feasible way to recover energy from exhaust gases in engines used for self-generation. Additionally, they allow a 4% reduction in fuel consumption and an improvement in the engine’s energy efficiency. The use of hydrogen as fuel allows a 30% reduction in polluting emissions, such as CO2 , CO, HC, and particulate matter. Hydrogen production processes, such as water electrolysis, allow the participation of Colombia’s solar energy potential, leading to sustainable hydrogen production, efficiency (60–80%), and a lower economic cost. In general, the application of thermoelectric generators and the use of hydrogen gas allow the improvement of the Colombian industrial sector’s environmental, social, and economic aspects due to greater competitiveness and the reduction in emissions and operating costs.

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Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis
...
Cárdenas-Gutiérrez, Javier Alfonso | 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. The advanced exergetic evaluation divides the study into two groups, the avoidable and unavoidable group and the endogenous and exogenous group. The first group provides information on the efficiency improvement potential of the components, and the second group determines the interaction between the components. A sensitivity analysis was achieved to assess the effect of condensing temperature, evaporator pinch, and pressure ratio with net power, thermal efficiencies, and exergetic efficiency for pentane, hexane, and octane as organic working fluids, where pentane obtained better energy and exergetic results. Furthermore, an advanced exergetic analysis showed that the components that had possibilities of improvement were the evaporator (19.14 kW) and the turbine (8.35 kW). Therefore, through the application of advanced exergetic analysis, strategies and opportunities for growth in the thermodynamic performance of the system can be identified through the avoidable percentage of destruction of exergy in components.

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Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids
...
Valencia, Guillermo | 2019-10-25

This paper presents a thermo-economic analysis of a simple organic Rankine cycle (SORC) as a waste heat recovery (WHR) systems of a 2 MW stationary gas engine evaluating different working fluids. Initially, a systematic methodology was implemented to select three organic fluids according to environmental and safety criteria, as well as critical system operational conditions. Then, thermodynamic, exergy, and exergo-economic models of the system were developed under certain defined considerations, and a set of parametric studies are presented considering key variables of the system such as pump efficiency, turbine efficiency, pinch point condenser, and evaporator. The results show the influence of these variables on the combined power of the system (gas engine plus ORC), ORC exergetic efficiency, specific fuel consumption (∆BSFC), and exergo indicators such as the payback period (PBP), levelized cost of energy (LCOE), and the specific investment cost (SIC). The results revealed that heat transfer equipment had the highest exergy destruction cost rates representing 81.25% of the total system cost. On the other hand, sensitivity analyses showed that acetone presented better energetic and exergetic performance when the efficiency of the turbine, evaporator, and condenser pinch point was increased. However, toluene was the fluid with the best results when pump efficiency was increased. In terms of the cost of exergy destroyed by equipment, the results revealed that acetone was the working fluid that positively impacted cost reduction when pump efficiency was improved; and toluene, when turbine efficiency was increased. Finally, the evaporator and condenser pinch point increased all the economic indicators of the system. In this sense, the working fluid with the best performance in economic terms was acetone, when the efficiency of the turbine, pinch condenser, and pinch evaporator was enhanced

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Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine
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Valencia, Guillermo | 2019-10-31

To contribute to the economic viability of waste heat recovery systems application based on the organic Rankine cycle (ORC) under real operation condition of natural gas engines, this article presents a thermoeconomic optimization results using the particle swarm optimization (PSO) algorithm of a simple ORC (SORC), regenerative ORC (RORC), and double-stage ORC (DORC) integrated to a GE Jenbacher engine type 6, which have not been reported in the literature. Thermoeconomic modeling was proposed for the studied configurations to integrate the exergetic analysis with economic considerations, allowing to reduce the thermoeconomic indicators that most influence the cash flow of the project. The greatest opportunities for improvement were obtained for the DORC, where the results for maximizing net power allowed the maximum value of 99.52 kW, with 85% and 80% efficiencies in the pump and turbine, respectively, while the pinch point temperatures of the evaporator and condenser must be 35 and 16 ◦C. This study serves as a guide for future research focused on the thermoeconomic performance optimization of an ORC integrated into a natural gas engine.

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Browsing by Subject "waste heat recovery"

Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry

Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis

Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids

Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine

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Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry

Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis

Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids

Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine

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Browsing by Subject "waste heat recovery"

Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry ﻿

Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis ﻿

Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids ﻿

Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine ﻿

Envíos recientes

Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry

Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis

Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids

Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine

Portales Institucionales

Innovative Technology Strategies for the Sustainable Development of Self-Produced Energy in the Colombian Industry

Regenerative organic rankine cycle as bottoming cycle of an industrial gas engine traditional and advanced exergetic analysis

Thermoeconomic modelling and parametric study of a simple ORC for the recovery of waste heat in a 2 MW gas engine under different working fluids

Thermoeconomic optimization with PSO algorithm of waste heat recovery systems based on organic Rankine cycle system for a natural gas engine