Hydrogen to link heat and electricity in the transition towards future Smart Energy Systems

Nastasi, Benedetto; Basso, Gianluigi Lo

doi:10.1016/j.energy.2016.03.097

Cited by 207 publications

(68 citation statements)

References 37 publications

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“…Gas hydrates have significant applications, as they are known as potential energy source that will replace fossil fuel [7]. In addition, they can be applied in other areas such as, gas storage and transportation [8,9], sea water desalination [10] and CO 2 capture and sequestration [11]. On the other hand, gas hydrate causes a lot of flow assurance problems.…”

Section: Overview Of Gas Hydrate Formationmentioning

confidence: 99%

Gas Hydrate Formation Phase Boundary Behaviour of Synthetic Natural Gas System of the Keta Basin of Ghana

Broni-Bediako¹,

Amorin²,

Bavoh³

2017

TOPEJ

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Background:Gas hydrates are considered as a major threat to the oil and gas flow assurance industry. At high pressure and low temperature conditions, gas hydrates form in pipelines and production facilities leading to pipeline blockages, high removal cost, environmental hazards and loss of lives. For a successful prevention of gas hydrate formation, predicting the hydrate formation phase boundary of hydrocarbon fluid composition becomes very necessary. Objective and Method:In this study, computer simulation software called PVTSim was used to predict hydrate formation phase boundary of synthetic natural gas composition of the Keta basin of Ghana at pressure and temperature ranges of 43.09 bar -350 bar and 12.87 °C -27.29°Crespectively. The effect of changes in natural gas composition (N 2 and H 2 S) and the presence of four commonly used thermodynamic gas hydrate inhibitors (methanol, ethanol, diethylene glycol and monoethylene glycol) on the hydrate formation phase boundary is also discussed. Prior to the study, the accuracy of PVTSim was validated with the hydrate formation phase data in literature. Results and Conclusion:Results suggested that the hydrate formation phase boundary decreased with increasing N 2 composition and increased with increasing H 2 S composition, suggesting that, the presence of H 2 S increases the threat of hydrate formation. However, a reduction in hydrate formation threat was observed in the presence of all four commonly used gas hydrate thermodynamic inhibitors with methanol demonstrating the highest inhibition effect.

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Section: Overview Of Gas Hydrate Formationmentioning

confidence: 99%

Gas Hydrate Formation Phase Boundary Behaviour of Synthetic Natural Gas System of the Keta Basin of Ghana

Broni-Bediako¹,

Amorin²,

Bavoh³

2017

TOPEJ

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“…This was attributed to the fuel switching directly impacting all medium and high-temperature heat supplies, and indirectly grid electricity savings. Unlike in [67], where electrolyzer heat was recovered to drive adsorption metal hydride heat pipes, and unlike in other distributed PtG deployments, particularly PtG-CHP integrations [123], no heat/material (e.g., oxygen) integration options were reported in [130,131]. In addition, economics were indirectly addressed through primary energy savings rather than monetary metrics.…”

Section: Ptg and District/building Integrationsmentioning

confidence: 99%

“…Nastasi and Lo Basso [67] proposed several electrolytic hydrogen uses in generic national energy systems (Section 3.1.9), as well as in generic district and building environments for application over the next two decades. Hydrogen was blended with natural gas for combustion in CHP units for heat and electricity generation, and in gas engines to drive adsorption heat pumps for heating.…”

Section: Ptg and District/building Integrationsmentioning

confidence: 99%

“…Using a methodology similar to that of [67], De Santoli et al [130] evaluated applications of natural gas-blended electrolytic hydrogen in existing European buildings rather than new constructions, in terms of primary energy savings. The blended hydrogen was employed as a combustion fuel to drive CHP and adsorption gas-driven heat pumps, when building-integrated solar PV and hybrid PV-thermal collector (PVT) modules could not be fitted on roof surfaces.…”

Section: Ptg and District/building Integrationsmentioning

confidence: 99%

“…Nastasi and Lo Basso [67] presented generic, coupled electricity and heat production strategies at national, district and building level that involved the integration of electrolytic hydrogen utilization technologies. PtG aspects focused on hydrogen applications, rather than the planning of PtG implementation details in a specific regional/geographic energy system.…”

Section: Italymentioning

confidence: 99%

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A Review of Projected Power-to-Gas Deployment Scenarios

Eveloy

Gebreegziabher

2018

Energies

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Technical, economic and environmental assessments of projected power-to-gas (PtG) deployment scenarios at distributed-to national-scale are reviewed, as well as their extensions to nuclear-assisted renewable hydrogen. Their collective research trends, outcomes, challenges and limitations are highlighted, leading to suggested future work areas. These studies have focused on the conversion of excess wind and solar photovoltaic electricity in European-based energy systems using low-temperature electrolysis technologies. Synthetic natural gas, either solely or with hydrogen, has been the most frequent PtG product. However, the spectrum of possible deployment scenarios has been incompletely explored to date, in terms of geographical/sectorial application environment, electricity generation technology, and PtG processes, products and their end-uses to meet a given energy system demand portfolio. Suggested areas of focus include PtG deployment scenarios: (i) incorporating concentrated solar-and/or hybrid renewable generation technologies; (ii) for energy systems facing high cooling and/or water desalination/treatment demands; (iii) employing high-temperature and/or hybrid hydrogen production processes; and (iv) involving PtG material/energy integrations with other installations/sectors. In terms of PtG deployment simulation, suggested areas include the use of dynamic and load/utilization factor-dependent performance characteristics, dynamic commodity prices, more systematic comparisons between power-to-what potential deployment options and between product end-uses, more holistic performance criteria, and formal optimizations.

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