Techno-environmental assessment and machine learning-based optimization of a novel dual-source multi-generation energy system

Javaherian, Amirreza; Ghasemzadeh, Nima; Javanshir, Nima; Yari, Mortaza; Vajdi, Mohammad; Nami, Hossein

doi:10.1016/j.psep.2023.06.025

Cited by 14 publications

(7 citation statements)

References 71 publications

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“…The primary motivation is to actively contribute to the reduction of carbon emissions. In this study, the evaluation of carbon dioxide emissions (measured in kilograms) per unit of energy production was performed using the following equation, reflecting a conscientious effort to assess and minimize the environmental impact of the multigeneration system (Javaherian et al, 2023).…”

Section: Environmental Impact Analysismentioning

confidence: 99%

“…NPV serves as a crucial metric in determining the profitability of the system throughout the project's lifetime. By considering the present value of future cash flows and accounting for the time value of money, NPV provides valuable insight into the economic feasibility and financial sustainability of the multigeneration system (Ebrahimi-Moghadam et al; Javaherian et al, 2023).…”

Section: Major Performance Of the Multigeneration Cyclementioning

confidence: 99%

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A biogas-fired cogeneration (cooling and power) system combined with biomethane facilities: 3E evaluation, sensitivity analyses and optimization

Gholizadeh,

Ghiasirad,

Rostami

et al. 2024

Environ Dev Sustain

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The increasing demand for power and cooling generation presents a dual challenge: an unavoidable increase in carbon emissions from fossil fuel combustion and the associated difficulties in meeting the escalating investment requirements for power plant generation. As a result, there is an urgent call for the advancement of innovative cycles that not only improve performance, but also play a role in mitigating carbon emissions. This study presents a novel approach to biogas-powered cogeneration with the objective of concurrently producing electricity and cooling while utilizing heat from liquefied natural gas. The primary objective is to achieve a reduction in carbon emissions compared to similar existing work. The innovative system combines an open-loop Brayton cycle (gas turbine cycle) powered by biogas, a closed-loop Brayton cycle, a liquefied natural gas open power generation cycle, and a dual-stage combined cooling and power unit consisting of an organic Rankine cycle integrated with an ejector refrigeration cycle. A thermodynamic and economic analysis was conducted to assess the performance of the current study in comparison to previous models. To achieve optimum conditions, a comprehensive multi-objective optimization has been used, taking into account crucial decision variables, energy and exergy indicators, the carbon emission per energy ratio of the product, and the overall cost of the unit product. The results obtained underscore the environmental superiority of this system over other proposals. In the most optimal state, this system demonstrates a remarkable 48% reduction in carbon emissions. Optimization reveals that the developed unit can generate 1860 kW of net electricity and 427.3 kW of cooling. Achieving an energetic efficiency of 80.79%, an exergetic efficiency of 41.5%, a carbon emission per energy ratio of product of 9.902 kg/kW per day, and a unit cost of products of 9.816 $/GJ. In particular, the energy efficiency of the integrated gas turbine closed-loop Brayton cycle system experiences a remarkable 71.17% improvement under optimal conditions. Among the various components of the developed cogeneration system, the combustion chamber contributes the most to the overall exergy destruction rate, closely followed by the condenser, the first heat exchanger of the liquefied natural gas power system. Proposed CCP system fueled by biogas and LNG. Graphical abstract

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Section: Environmental Impact Analysismentioning

confidence: 99%

Section: Major Performance Of the Multigeneration Cyclementioning

confidence: 99%

A biogas-fired cogeneration (cooling and power) system combined with biomethane facilities: 3E evaluation, sensitivity analyses and optimization

Gholizadeh,

Ghiasirad,

Rostami

et al. 2024

Environ Dev Sustain

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“…The chemical reaction in the gas turbine combustion chamber, which is the main part of the proposed system, can be expressed based on the fuel-air ratio as follows [2,20]:…”

Section: Combustion Chambermentioning

confidence: 99%

Using Green Energy Sources in Trigeneration Systems to Reduce Environmental Pollutants: Thermodynamic and Environmental Evaluation

Ghasemzadeh,

Sharafi Laleh,

Soltani

et al. 2023

Sustainability

Self Cite

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With rising electricity demand and environmental concerns, renewable energy is increasingly important. Geothermal power plants offer an opportunity to utilize natural energy sources advantageously. These systems can be coupled with other power cycles, like gas Brayton cycles, to maximize their potential output. Biogas is considered a viable replacement for fossil fuels such as natural gas to further mitigate pollutant gas emissions. In this paper, a biogas-fueled gas turbine coupled with a double-expansion geothermal cycle is proposed that uses, for heat recovery, combustion product gases to run a Kalina cycle. After heating the geothermal fluid twice for double expansion, the product hot gases also heat water in a domestic water heater. Also, three thermoelectric generators are utilized to increase the overall output. Using the geothermal cycle’s waste heat, a humidifier–dehumidifier desalination unit is considered for freshwater production. Green energy, freshwater, and heat are the system’s products, all of which are useful. The proposed system is examined from a thermodynamic perspective using EES V.10.561 (Engineering Equation Solver) software. For the considered input parameters, energy and exergy efficiencies of 36% and 44% are achieved.

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“…In addition, achieving high rate chemical recovery needs the addition of acidic reagents. Indeed, in order to obtain a diluted cleaning solution, cleaning chemicals can be added and/or the reverse osmosis process can be employed 24 .…”

Section: Introductionmentioning

confidence: 99%

Technical and financial feasibility of a chemicals recovery and energy and water production from a dairy wastewater treatment plant

Basem,

Jasim,

Ghodratallah

et al. 2024

Sci Rep

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Due to the high volume of wastewater produced from dairy factories, it is necessary to integrate a water recovery process with the treatment plant. Today, bipolar membrane electrodialysis units (BMEUs) are increasingly developed for wastewater treatment and reutilizing. This article aims to develop and evaluate (technical and cost analyses) a combined BMEU/batch reverse osmosis unit (BROU) process for the recovery of chemicals and water from the dairy wastewater plant. The combined BROU/BMEU process is able to simultaneously produce water and strong base-acid, and reduce power consumption due to the injection of concentrated feed flow into the BMEU. A comprehensive comparative analysis on the performances of two combined and stand-alone BMEU configurations are developed. The proposed combined technology for dairy factory wastewater treatment is designed on a new structure and configuration that can address superior cost analysis compared to similar technologies. Further, the optimal values of permeate flux and current density as two vital and influencing parameters on the performance of the studied dairy wastewater treatment process were calculated and discussed. From the outcomes, the total cost of production in the combined configuration has been reduced by approximately 26% compared to the stand-alone configuration. Increasing the feed concentration rate using the batch reverse osmosis process for the dairy wastewater treatment process can be an ideal solution from an economic point of view. Moreover, point (current density, feed concentration rate, total unit cost) = $$\left(328.9, 7, 14.37\right)$$ 328.9 , 7 , 14.37 can be considered as an optimal point for the economic performance of the studied wastewater treatment process.

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Techno-environmental assessment and machine learning-based optimization of a novel dual-source multi-generation energy system

Cited by 14 publications

References 71 publications

A biogas-fired cogeneration (cooling and power) system combined with biomethane facilities: 3E evaluation, sensitivity analyses and optimization

A biogas-fired cogeneration (cooling and power) system combined with biomethane facilities: 3E evaluation, sensitivity analyses and optimization

Using Green Energy Sources in Trigeneration Systems to Reduce Environmental Pollutants: Thermodynamic and Environmental Evaluation

Technical and financial feasibility of a chemicals recovery and energy and water production from a dairy wastewater treatment plant

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