Thermoeconomic Analysis of Biomethane Production Plants: A Dynamic Approach

Cappiello, Francesco Liberato; Cimmino, Luca; Napolitano, Marialuisa; Vicidomini, Maria

doi:10.3390/su14105744

Cited by 12 publications

(4 citation statements)

References 73 publications

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“…The electricity flows shown here regard a single plant with 4 digesters operating with the biogas upgrading unit and the liquefaction cycle. The load of the plant is almost constant due to the possibility of operation in rated conditions, as it is common for optimal management of these technologies [29]. The day shown in figure 4 is a summer day so the electricity demand is met by the PV for large part of the day -5 AM to 5 PM -with a remarkable fraction integrated with the battery in the other hours.…”

Section: Resultsmentioning

confidence: 99%

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Dynamic Analysis of a Power Plant Producing Liquefied Biomethane for Heavy Road Transport

Cimmino

Calise

Cappiello

et al. 2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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In the recent years, European Countries are paying more and more attention to the issue of greenhouse gases emissions due to the road transport sector. In particular, the fuel consumption due to the heavy road transport is one of the most relevant issues both for the weight and the long distances that they cover. In addition, the cost of the natural gas dramatically increased in many European countries due to recent international crisis. Thus, finding alternative ways of producing natural gas from renewable sources would be of great economic and environmental impact for the current global asset. In this work, a dynamic thermoeconomic analysis of a plant producing bio liquefied natural gas (bio-LNG), driven by renewable sources, to meet the fuel demand of a fleet of heavy trucks is proposed. The plant consists of a plug flow reactor digesting the organic fraction of municipal solid wastes in mesophilic conditions. The biogas upgrading model and the biomethane liquefaction models are in detail developed in MATLAB. The whole system is integrated in TRNSYS for dynamic simulation purpose. Then, the bio-LNG is used to meet the fuel demand of heavy trucks which cover relevant distances all over the region of Campania, in the South of Italy. The environmental impact related to the avoided emissions due to the use of bio-LNG is analysed together with the economic feasibility of the proposed system. The results of the thermoeconomic simulation show that the system has high capital costs, close to 85 M€ despite the fundings granted for bioLNG trucks purchasing. However, the fundings for the biomethane production and selling are enough to guarantee a remarkable economic feasibility with a Simple Payback period of less than 2 years and a Net Present Value of 402 M€. Furthermore, the solution proposed is effective for the pathway of the green mobility, with a Primary Energy Saving of 91% and a reduction of CO2 emissions by 86%.

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Section: Resultsmentioning

confidence: 99%

“…In fact, due to the different permeability of the gases, two different streams are obtained, one rich in CH4 (retentate) and one rich in CO2 (permeate) [28]. The detailed model of the system of equations describing the process is discussed in [29].…”

Section: Membrane Separationmentioning

confidence: 99%

Dynamic Analysis of a Power Plant Producing Liquefied Biomethane for Heavy Road Transport

Cimmino

Calise

Cappiello

et al. 2023

36th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems (ECOS 20

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“…The exploitation of biomass as a renewable source is widely investigated in the literature [4]. In fact, biomass can be used to produce biogas by means of the anaerobic digestion process [5], and the biogas may be upgraded into biomethane and injected into the gas grid [6]. Furthermore, digestate is a by-product of the anaerobic digestion process which can be used as a fertilizer in agriculture [7].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Modelling and Energy, Economic, and Environmental Analysis of a Greenhouse Supplied by Renewable Sources

et al. 2023

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This paper regards the design and dynamic modelling of a greenhouse coupled with renewable energy technologies to obtain a hybrid renewable energy plant as an optimal solution in the green farm framework. The considered technologies are PV panels, solar thermal collectors, and a biomass auxiliary heater. The system is also coupled with a pyrogasifier, supplied by wood and agricultural waste in the framework of a biocircular economic approach. To supply the investigated user, with a “green farm” located in Castelvolturno (Naples, South of Italy) reducing the energy consumption and operating costs, all of the main components of the plant were suitably designed. The operation of the designed components was simulated by a dynamic simulation model developed by TRNSYS software and validated by means of the literature results. A comprehensive energy, economic, and environmental analysis of the greenhouse is presented. The main results suggest that the investigated renewable plant reduces the total equivalent CO2 emissions by 148.66 t/y. Considering the current high increases in energy prices as a result of the energy crisis due to the war, the system shows very significant profitability with a simple payback of only 1.7 years.

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“…The system was able to meet the user's demand. Cappiello et al [37] analyzed two technologies for biogas production coupled with PV panels and an ES system. The off-grid arrangement was designed for a sewage sludge treatment plant located in Stuttgart, Germany.…”

Section: Introductionmentioning

confidence: 99%

A Polygeneration System Based on Desiccant Air Conditioning Coupled with an Electrical Storage

2022

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This study presents an extension of a previous paper recently published by the authors. In particular, the current paper focuses on adding electrical storage to a polygeneration system developed for residential applications. Different from the previous work, it aims to design an off-grid facility. The polygeneration plant provides electricity, space heating and cooling, domestic hot water, and freshwater for a single-family dwelling in Almería, Spain. The main system technologies are photovoltaic/thermal collectors, reverse osmosis, and desiccant air conditioning. Lead-acid battery storage was added as a backup for the electrical system. The system was performed in the TRNSYS simulation environment for one year with a 5-min time step. A parametric study was carried out to investigate the grid dependence according to the number of batteries installed. Design optimization was also performed to provide the optimal system configuration for the off-grid case. A solar collector efficiency of 0.55 and a desiccant air-conditioning coefficient of performance of 0.42 were obtained. All demands were fully supplied, and the primary energy saving and CO2 saving achieved 100%. A minimum battery state of charge of 30% was reached for a few hours all year long.

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Thermoeconomic Analysis of Biomethane Production Plants: A Dynamic Approach

Cited by 12 publications

References 73 publications

Dynamic Analysis of a Power Plant Producing Liquefied Biomethane for Heavy Road Transport

Dynamic Analysis of a Power Plant Producing Liquefied Biomethane for Heavy Road Transport

Dynamic Modelling and Energy, Economic, and Environmental Analysis of a Greenhouse Supplied by Renewable Sources

A Polygeneration System Based on Desiccant Air Conditioning Coupled with an Electrical Storage

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