Carbon Dioxide Plume Geothermal (CPG) System-A New Approach for Enhancing Geothermal Energy Production and Deployment of CCUS on Large Scale in India

Gupta, Nandlal; Vashistha, Manvendra

doi:10.1016/j.egypro.2016.11.216

Cited by 17 publications

(3 citation statements)

References 20 publications

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“…However, some researchers have primarily focused on investigating the feasibility of CPG systems in India and Germany. Gupta and Vashistha [37] discussed the technical and economic advantages of CPG systems in India, while McDonnell et al [38] conducted a comprehensive feasibility study in Germany. The findings unveiled the significant geothermal potential in India, the economic competitiveness of geothermal energy compared to other renewable sources, and the scalability and capability of CPG systems to deliver a stable power supply.…”

Section: Overview Of Past Research On Cpg Studiesmentioning

confidence: 99%

“…The critical temperature (T critical = 31.03 • C) and critical pressure (P critical = 71.778 bar) of CO 2 ensure that it remains a supercritical fluid. Supercritical fluid is a single phase that can continuously transform from gas to liquid and vice versa with no phase boundaries [37]. Its volume is significantly smaller than its volume as a gas at the surface and can shrink to 2.7 m 3 at a depth of 2 km, making it an attractive option for large-scale storage.…”

Section: Co 2 -Based Geothermal Systemsmentioning

confidence: 99%

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Geothermal Solutions for Urban Energy Challenges: A Focus on CO2 Plume Geothermal Systems

Antoneas,

Koronaki

2024

Energies

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The utilization of geological formations, distinguished by natural porosity and permeability and protected by low-permeability caprock, has emerged as an effective strategy for carbon dioxide (CO2) storage. This method significantly contributes to mitigating anthropogenic greenhouse gas emissions and addressing the challenges of climate change. Recent research has unveiled the potential of CO2 to enhance geothermal heat energy extraction in geothermal reservoirs by acting as a subsurface heat exchange fluid. This review paper explores the viability of CO2 in augmenting geothermal heat energy extraction, comparing it to conventional water-based geothermal systems. Special emphasis is placed on CO2 plume geothermal (CPG) systems, characterized by rapid deployment and long-term utilization of geothermal energy resources. With the overarching objective of establishing net-zero energy communities, the analysis of such systems offers a comprehensive understanding of their features, providing a fresh perspective on extracted energy within the context of energy supply in integrated, sustainable energy in built systems. Notably, these systems demonstrate efficacy in meeting the power requirements of an energy community, spanning both distinct heating and electricity needs. However, the key challenge lies in selecting suitable locations. This scientific review aims to comprehend the characteristics of CPG under specific temperature and pressure conditions while optimizing subsurface permeability. This insight is pivotal for identifying future locations for CPG operations with the intent of powering small energy communities.

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Section: Overview Of Past Research On Cpg Studiesmentioning

confidence: 99%

Section: Co 2 -Based Geothermal Systemsmentioning

confidence: 99%

Geothermal Solutions for Urban Energy Challenges: A Focus on CO2 Plume Geothermal Systems

Antoneas,

Koronaki

2024

Energies

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“…Garapati et al [13] also demonstrate that the combination of a CPG system with other heat sources can result in a promising hybrid concept for power generation. Next to the promising system characteristic itself, CPG systems might be a favourable technology within a future context of carbon capture and storage (CCS) [14] and in a carbon capture utilisation and sequestration/storage (CCUS) economy [15].…”

mentioning

confidence: 99%

CO2 Plume Geothermal (CPG) Systems for Combined Heat and Power Production: an Evaluation of Various Plant Configurations

2022

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CO2 Plume Geothermal (CPG) systems are a promising concept for utilising petrothermal resources in the context of a future carbon capture utilisation and sequestration economy. Petrothermal geothermal energy has a tremendous worldwide potential for decarbonising both the power and heating sectors. This paper investigates three potential CPG configurations for combined heating and power generation (CHP). The present work examines scenarios with reservoir depths of 4 km and 5 km, as well as required district heating system (DHS) supply temperatures of 70°C and 90°C. The results reveal that a two-staged serial CHP concept eventuates in the highest achievable net power output. For a thermosiphon system, the relative net power reduction by the CHP option compared with a sole power generation system is significantly lower than for a pumped system. The net power reduction for pumped systems lies between 62.6% and 22.9%. For a thermosiphon system with a depth of 5 km and a required DHS supply temperature of 70°C, the achievable net power by the most beneficial CHP option is even 9.2% higher than for sole power generation systems. The second law efficiency for the sole power generation concepts are in a range between 33.0% and 43.0%. The second law efficiency can increase up to 63.0% in the case of a CHP application. Thus, the combined heat and power generation can significantly increase the overall second law efficiency of a CPG system. The evaluation of the achievable revenues demonstrates that a CHP application might improve the economic performance of both thermosiphon and pumped CPG systems. However, the minimum heat revenue required for compensating the power reduction increases with higher electricity revenues. In summary, the results of this work provide valuable insights for the potential development of CPG systems for CHP applications and their economic feasibility.

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The co-movements between geothermal energy usage and CO2 emissions through high and low frequency cycles

Bilgili

Kuşkaya

Gençoğlu

et al. 2020

Environ Sci Pollut Res

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Carbon Dioxide Plume Geothermal (CPG) System-A New Approach for Enhancing Geothermal Energy Production and Deployment of CCUS on Large Scale in India

Cited by 17 publications

References 20 publications

Geothermal Solutions for Urban Energy Challenges: A Focus on CO2 Plume Geothermal Systems

Geothermal Solutions for Urban Energy Challenges: A Focus on CO2 Plume Geothermal Systems

CO2 Plume Geothermal (CPG) Systems for Combined Heat and Power Production: an Evaluation of Various Plant Configurations

The co-movements between geothermal energy usage and CO2 emissions through high and low frequency cycles

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