A novel multigeneration system driven by a hybrid biogas-geothermal heat source, Part I: Thermodynamic modeling

Rostamzadeh, Hadi; Gargari, Saeed Ghavami; Namin, Amin Shekari; Ghaebi, Hadi

doi:10.1016/j.enconman.2018.08.088

Cited by 76 publications

(7 citation statements)

References 32 publications

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“…The thermoeconomic analysis showed a 15% decrease in energy efficiency with a 200 K increase in the temperature. Rostamzadeha et al 88 also conducted a study on a multi‐generation technology driven by a biogas‐geothermal hybrid system as a heat source, where they performed a comparison to the single‐generation system, which showed a considerable improvement in the thermal efficiency up to 62.3%. Moreover, the multi‐generation system produced an overall heating power of 538.1 kW, a cooling capacity of 1799 kW, a net output power of 443.4 kW, a mass flow rate of produced hydrogen 0.26 kg/s, and 367.9 L/h of freshwater.…”

Section: Energy Analysis Of Biogas‐fueled Systemmentioning

confidence: 99%

A conceptual review of sustainable electrical power generation from biogas

Abanades

Abbaspour

Ahmadi

et al. 2021

Energy Science & Engineering

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High‐energy demand with rapid industrialization and mechanization combined with environmental pollution due to the burning of fossil fuels has driven a shift toward renewable energy. Biogas derived from biomass is a potential renewable energy source that can be used in different sectors such as transportation sector, electricity generation, heat production, combined heat and power (CHP) systems, and fuel cells. Moreover, the upgraded biogas can be applied as transportation fuel via an internal combustion chamber (for internal combustion engine (ICE) vehicles), and electricity station (for electric vehicles). In the present work, a conceptual review of biogas‐based electrical power production systems is presented. It is clear that the conventional types of biomass contain a high amount of pollutants and unwanted constituents, which lower the lower heating value (LHV) of biogas fuel. Moreover, the energy and exergy efficiencies of biogas applications are influenced by these components. Consequently, several biogas‐upgrading technologies have been elaborated to increase the LHV of biogas fuel by removing biogas pollutants. So, the energy and exergy analyses of biogas‐driven plants are discussed in this regard. Also, the economic analysis of biogas‐fueled systems is measured through the connection between biogas production, purchased electrical power, and selling of an additional amount of biogas. Biogas represents an important source of renewable energy as shown before, and it helps in waste management and W‐to‐E (waste to energy) conversion, which allows utilizing huge amounts of wastes instead of disposal or landfill procedures. However, handling of biogas from production to utilization has an impact on the environment. Therefore, the assessment of the environmental impacts of biogas plants is presented. In addition, a combination of the biogas energy with other sources, especially renewable energy sources (eg, solar‐biogas, geothermal‐biogas, wind‐biogas, CHP, CCHP, and concentrated photovoltaic‐biogas), and reusing waste energy for other tasks (eg, employing the waste heat from a gas turbine) are examined.

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Section: Energy Analysis Of Biogas‐fueled Systemmentioning

confidence: 99%

A conceptual review of sustainable electrical power generation from biogas

Abanades

Abbaspour

Ahmadi

et al. 2021

Energy Science & Engineering

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“…A CSP system and a biogas boiler, according to the availability of solar energy, feed a steam turbine for electricity production. The steam turbine, regulated by a PID control, can heat the anaerobic digester at the constant temperature of 35 • C with a maximum daily fluctuation of 0.8 • C. In recent works, Rostamzadeh et al [171,172] proposed and simulated a multigeneration system driven by a hybrid biogas-geothermal heat source for heating, cooling, electric power, hydrogen and freshwater production. The plant proposed is shown in Figure 15.…”

Section: Solar Thermal Energymentioning

confidence: 99%

“…Furthermore, the economic drawbacks of each individual heat source are solved. In the first part of [171], the results show an overall production capacity for heating, cooling, net output power, hydrogen and freshwater of 538.1 kW, 1799 kW, 443.4 kW, 0.2583 kg/s and 367.92 L/h, respectively. Thermal efficiency, exergy efficiency and total exergy destruction are equal to 62.28%, 74.9% and 2036.19 kW, respectively.…”

Section: Solar Thermal Energymentioning

confidence: 99%

A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies

et al. 2021

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Anaerobic Digestion (AD) is a well-established process that is becoming increasingly popular, especially as a technology for organic waste treatment; the process produces biogas, which can be upgraded to biomethane, which can be used in the transport sector or injected into the natural gas grid. Considering the sensitivity of Anaerobic Digestion to several process parameters, mathematical modeling and numerical simulations can be useful to improve both design and control of the process. Therefore, several different modeling approaches were presented in the literature, aiming at providing suitable tools for the design and simulation of these systems. The purpose of this study is to analyze the recent advancements in the biomethane production from different points of view. Special attention is paid to the integration of this technology with additional renewable energy sources, such as solar, geothermal and wind, aimed at achieving a fully renewable biomethane production. In this case, auxiliary heat may be provided by solar thermal or geothermal energy, while wind or photovoltaic plants can provide auxiliary electricity. Recent advancements in plants design, biomethane production and mathematical modeling are shown in the paper, and the main challenges that these fields must face with are discussed. Considering the increasing interest of industries, public policy makers and researchers in this field, the efficiency and profitability such hybrid renewable solutions for biomethane production are expected to significantly improve in the next future, provided that suitable subsidies and funding policies are implemented to support their development.

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“…Consequently, a mathematical model was introduced, and the exergy analysis and the optimization evaluation were performed; the results indicated that the exergy efficiency can be increased to 26.25%. Rostamzadeh et al 137 presented a thermodynamic analysis of a hybrid renewable energy system. The recommended system employed a hybrid biogas-geothermal heat source to provide heating and cooling as well as the production of hydrogen and freshwater.…”

Section: Figure 10mentioning

confidence: 99%

Geothermal energy use in hydrogen production: A review

et al. 2019

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Summary The major logics resulting in hydrogen production can be mentioned as fossil fuel depletion and climate change. In this way, hydrogen is produced with the help of numerous processes based on traditional and alternative energy resources like coal, natural gas, wind, solar, biomass, and geothermal energy. Over the past decade, the attention of research institutions and industry has been drawn to hydrogen, inspired by developments in renewable energies. Hydrogen production can be considered as an exceptional choice to make complete utilization of the renewable energy. Among diverse technologies, hydrogen production based on geothermal energy offers great promise. In this paper, initially a concise summary of present and advancing hydrogen production technologies is presented, and secondarily a comprehensive review of research associated with hydrogen production based on geothermal energy is provided. Thirdly, the process descriptions of geothermal‐assisted hydrogen production coupled with its technical, economic, and environmental aspects are addressed. Finally, comparative assessments of costs and environmental aspects related to hydrogen production based on different energy sources have been performed. In accordance with the results, the geothermal‐assisted hydrogen production cost based on electrolysis is competitively lower than other sources like wind, solar thermal coupled with natural gas, solar PV, and grid. Also, the same behavior can be seen for geothermal‐assisted hydrogen production cost based on thermochemical process.

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A novel multigeneration system driven by a hybrid biogas-geothermal heat source, Part I: Thermodynamic modeling

Cited by 76 publications

References 32 publications

A conceptual review of sustainable electrical power generation from biogas

A conceptual review of sustainable electrical power generation from biogas

A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies

Geothermal energy use in hydrogen production: A review

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