Energy and exergy analysis of biogas fired regenerative gas turbine cycle with CO2 recirculation for oxy-fuel combustion power generation

Mohammadpour, Mohammadreza; Houshfar, Ehsan; Ashjaee, Mehdi; Mohammadpour, Amirreza

doi:10.1016/j.energy.2020.119687

Cited by 22 publications

(3 citation statements)

References 40 publications

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“…A mixture of CH4 and CO2 will undergo combustion within the biogas engine generator. Equation ( 2) shows the chemical reaction of this process [15]. Coefficients x1 to x8 represents the number of moles for each species, X denotes the molar ratio of CO2 to O2 in the gas mixture, ψp is the primary zone equivalence ratio, and ε is the molar ratio of gas mixture to fuel.…”

Section: Eclipse Simulations and Setup Validationmentioning

confidence: 99%

A Techno-Economic Study of a Net-Zero Renewable Energy Supply for a Farm

Crilly,

Wang,

Huang

2023

Preprint

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This study investigated utilising on-site organic waste from a large-scale dairy farm to provide sustainable electricity and heat. The 600-acre site required 65.2 kWe (electricity) and 9.54 kWth (heat). ECLIPSE software was used to simulate anaerobic digestion (AD) of livestock waste, wheat straw, and barley straw to supply biogas to a cogeneration system. AD produced sufficient biogas to meet all electrical and heating demands from a 100 kWe CHP system, alongside a biogas storage option. The study revealed that a maximum production of 1 MWe can be achieved using four 250 kWe units. Simulations of amine absorption carbon capture demonstrated that 85.1% of the CO2 could be removed from the CHP flue gases. Annual CO2 emissions are calculated by displacing current farm emissions, reducing grid usage, and implementing CCS. This results in a reduction of 117 tCO2e/year, 1692 tCO2e/year, and 6158 tCO2e/year for the 100 kWe, 1 MWe, and 1 MWe with CCS systems respectively. Economic analysis shows that the levelised cost of energy for the 100 kWe and 1 MWe options were £60.41/MWh and £47.34/MWh respectively for a lifetime of 20 years. The respective payback period ranges were calculated to be 1.9-4.4 years and 3.5-10.8 years.

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Section: Eclipse Simulations and Setup Validationmentioning

confidence: 99%

A Techno-Economic Study of a Net-Zero Renewable Energy Supply for a Farm

Crilly,

Wang,

Huang

2023

Preprint

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“…Moreover, they concluded that increasing the turbine inlet temperature and pressure and the temperature of the compressed air and feed water leads to lower CO 2 emissions. Mohammadpour et al [15] performed an energy and exergy (2E) analysis for an oxy-fuel regenerative gas turbine. They considered two distinct streams for CO 2 , including primary and dilution.…”

Section: Introductionmentioning

confidence: 99%

Realistic Energy, Exergy, and Exergoeconomic (3E) Characterization of a Steam Power Plant: Multi-Criteria Optimization Case Study of Mashhad Tous Power Plant

Tavana,

Deymi-Dashtebayaz,

Dadpour

et al. 2023

Water

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This paper presents an in-depth investigation into the performance of Mashhad Tous power plant in Iran, a natural-gas-fueled steam cycle with an output power of 4 × 150 MW. The analyses include energy, exergy, and exergoeconomic. To facilitate the study, a robust code is developed to simulate the thermodynamic topology of the power plant. The fidelity of the simulation is validated using realistic site conditions. The study incorporates three vital decision variables: boiler water mass flow rate, turbine inlet pressure from, and ambient temperature ranging from 90 kg⋅s−1 to 150 kg⋅s−1, 12 MPa to 19 MPa, and 10 °C to 40 °C, respectively. Three different heat loads, including 423 MW, 311 MW, and 214 MW, are used to analyze the performance of the power plant. A Pareto-based multi-criteria optimization intertwined with the technique for order of preference by similarity to the ideal solution (TOPSIS) is used to find the optimum conditions in terms of having the highest work output and exergy efficiency while simultaneously reducing the plant’s total cost. The optimization results demonstrate a 4.28% increase in output at full load (423 MW). Additionally, a 1.52% increase is observed at partial load (311 MW), and there is a notable 16% increase in output at low load (214 MW). These improvements also positively impacted energy efficiency. Specifically, there is a 4% improvement at full load, a 0.9% enhancement at partial load, and a remarkable 5.4% increase in energy efficiency at low load. In terms of costs, substantial reductions of 37% at full load, 31% at partial load, and an impressive 72% at low load are evident.

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“…Further, related studies that approach non-premixed combustion of natural gas and biogas in micro combustors have shown that despite a decrease in methane, the right combination of swirl number and fuel injector diameters can enable adequate performance comparable to natural gas cycles whilst delivering power at low NO emissions [26,27]. New ideas of implementing anaerobic digestion gas in the gas turbine cycle that are reflected in combining gas turbine cycles are also tangible whilst combining the gas turbine cycle with CO 2 recirculation and oxy-fuel combustion in two zone models with potential for carbon capture and storage (CCS) [28], micro turbine coupled with Permanent Magnet Synchronous Generators (PMSG) [29] and combined gas turbines that employ supercritical CO 2 with cooling at the inlet of the compressor [30]. All the above analyses show high possibility of implementation biomass anaerobic digestion gas fueling with great potential of decreasing both emissions and use of fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Gasification and Adiabatic Digestion of Corn for Practical Implementation in Conventional Gas Turbines

Božo¹,

Valera‐Medina

2021

Gases

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Clean, more responsible energy production in gas turbine power plants is a challenge. Interestingly, various alternative sources could be found in agricultural locations with great potential of being transformed from agricultural waste to energy. Corn cob gasification gas could be successfully implemented in gas turbines through co-firing with natural gas. Concurrently, agricultural biogas could also be employed for such a purpose. The technology could be implemented in locations such as Vojvodina, Serbia, which is an agricultural region with great potential for producing biogas from agricultural waste. Therefore, this paper approaches the practical implementation of gas produced by adiabatic corn digestion with CO2 recirculation. Five different cases were assessed. The results are compared to previous analyses that used co-firing of the corn cob gasification gas in representative gas turbine systems. Impacts of the fuel composition on the characteristics of combustion were analyzed using CHEMKIN PRO with GRI–Mech 3.0. Impacts of fuel quality on the power plant performance were analyzed through calculations with a numerical model based on a Brayton cycle of 3.9 MW power output. The application shows acceptable values during co-firing with natural gas without modification of the overall system, with better outlet parameters compared to pure corn gasification gas.

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Energy and exergy analysis of biogas fired regenerative gas turbine cycle with CO2 recirculation for oxy-fuel combustion power generation

Cited by 22 publications

References 40 publications

A Techno-Economic Study of a Net-Zero Renewable Energy Supply for a Farm

A Techno-Economic Study of a Net-Zero Renewable Energy Supply for a Farm

Realistic Energy, Exergy, and Exergoeconomic (3E) Characterization of a Steam Power Plant: Multi-Criteria Optimization Case Study of Mashhad Tous Power Plant

Comparative Analysis of Gasification and Adiabatic Digestion of Corn for Practical Implementation in Conventional Gas Turbines

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