A novel multigeneration system driven by a hybrid biogas-geothermal heat source, Part II: Multi-criteria optimization

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

doi:10.1016/j.enconman.2018.11.035

Cited by 78 publications

(15 citation statements)

References 52 publications

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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%

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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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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“…The interest in the hybridization of geothermal with biomass is limited in the literature. The state-of-the-art studies are limited to those using biomass-sourced heat to supplement the operating enthalpy of low-temperature geothermal [ 4 ], using biomass to compensate for the off-design conditions of a geothermal power plant [ 5 ], and multigeneration biogas–geothermal systems [ 6 ]. When the colocation of geothermal and agricultural lands or forestry are present, either biomass or geothermal is used to boost the performance of the other for actual industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Development and Analysis of the Novel Hybridization of a Single-Flash Geothermal Power Plant with Biomass Driven sCO2-Steam Rankine Combined Cycle

Mutlu

Baker

Kazanç

2021

Entropy

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This study investigates the hybridization scenario of a single-flash geothermal power plant with a biomass-driven sCO2-steam Rankine combined cycle, where a solid local biomass source, olive residue, is used as a fuel. The hybrid power plant is modeled using the simulation software EBSILON®Professional. A topping sCO2 cycle is chosen due to its potential for flexible electricity generation. A synergy between the topping sCO2 and bottoming steam Rankine cycles is achieved by a good temperature match between the coupling heat exchanger, where the waste heat from the topping cycle is utilized in the bottoming cycle. The high-temperature heat addition problem, common in sCO2 cycles, is also eliminated by utilizing the heat in the flue gas in the bottoming cycle. Combined cycle thermal efficiency and a biomass-to-electricity conversion efficiency of 24.9% and 22.4% are achieved, respectively. The corresponding fuel consumption of the hybridized plant is found to be 2.2 kg/s.

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“…The interest in hybridization of geothermal with biomass is limited in the literature. The state-of-the-art studies are limited to those using biomass sourced heat to supplement the operating enthalpy of low temperature geothermal [4], using biomass to compensate for the off-design conditions of a geothermal power plant [5], and multigeneration biogasgeothermal systems [6]. When the colocation of geothermal and agricultural lands or forestry are present, either biomass or geothermal is used to boost the performance of the other for actual industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Development and Analysis of the Novel Hybridization of a Single Flash Geothermal Power Plant with Biomass Driven sCO2-steam Rankine Combined Cycle

Mutlu¹,

Baker²,

Kazanç³

2021

Preprint

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This study investigates the hybridization scenario of a single flash geothermal power plant with a biomass driven sCO2-steam Rankine combined cycle where a solid local biomass source, olive residue, is used as a fuel. The hybrid power plant is modeled using the simulation software EB-SILON®Professional. A topping sCO2 cycle is specifically chosen for its potential for flexible elec-tricity generation. A synergy between the topping sCO2 and bottoming steam Rankine cycles is achieved by a good temperature match between the coupling heat exchanger where the waste heat from the topping cycle is utilized in the bottoming cycle. The high temperature heat addition problem common sCO2 cycles is also eliminated by utilizing the heat in the flue gas in the bottoming cycle. Combined cycle thermal efficiency and biomass to electricity conversion efficiency of 24.9% and 22.4% are achieved, respectively. The corresponding fuel consumption of the hybridized plant is found as 2.2 kg/s.

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A novel multigeneration system driven by a hybrid biogas-geothermal heat source, Part II: Multi-criteria optimization

Cited by 78 publications

References 52 publications

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

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

Development and Analysis of the Novel Hybridization of a Single-Flash Geothermal Power Plant with Biomass Driven sCO2-Steam Rankine Combined Cycle

Development and Analysis of the Novel Hybridization of a Single Flash Geothermal Power Plant with Biomass Driven sCO2-steam Rankine Combined Cycle

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