Power-to-Gas integration in the Transition towards Future Urban Energy Systems

Nastasi, Benedetto; Basso, Gianluigi Lo

doi:10.1016/j.ijhydene.2017.07.149

Cited by 77 publications

(28 citation statements)

References 49 publications

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“…These electrolytic hydrogen uses reduced the need for additional renewable power plants. Nastasi and Lo Basso [131] extended their heat provision strategies to different temperature levels in existing building mixes based in Rome, Berlin, and Copenhagen, for renewable electricity generation shares of 25-50% representative of the next two decades. The building energy models were characterized by different power-to-heat ratios and heat consumptions at each temperature level.…”

Section: Ptg and District/building Integrationsmentioning

confidence: 99%

“…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%

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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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Section: Ptg and District/building Integrationsmentioning

confidence: 99%

Section: Ptg and District/building Integrationsmentioning

confidence: 99%

A Review of Projected Power-to-Gas Deployment Scenarios

Eveloy

Gebreegziabher

2018

Energies

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“…In this work, the energy generation resources for supplying heat or electricity are assumed to be unidirectional components. A renewable energy source is also considered, particularly with respect to electricity generation, because this resource is expected to be widely used to reduce the primary energy consumption, as shown in [26]. Furthermore, in [27], the excess electricity due to generation of this resource could be converted to heat.…”

Section: Multi-energy System Overviewmentioning

confidence: 99%

A Multi-Energy System Expansion Planning Method Using a Linearized Load-Energy Curve: A Case Study in South Korea

Park

Kim

et al. 2017

Energies

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Multi-energy systems can integrate heat and electrical energy efficiently, using resources such as cogeneration. In order to meet energy demand cost-effectively in a multi-energy system, adopting appropriate energy resources at the right time is of great importance. In this paper, we propose an expansion planning method for a multi-energy system that supplies heat and electrical energy. The proposed approach formulates expansion planning as a mixed integer linear programming (MILP) problem. The objective is to minimize the sum of the annualized cost of the multi-energy system. The candidate resources that constitute the cost of the multi-energy system are fuel-based power generators, heat-only boilers, a combined heat and power (CHP) unit, energy storage resources, and a renewable electrical power source. We use a load-energy curve, instead of a load-duration curve, for constructing the optimization model, which is subsequently linearized using a Douglas-Peucker algorithm. The residual load-energy curve, for utilizing the renewable electrical power source, is also linearized. This study demonstrates the effectiveness of the proposed method through a comparison with a conventional linearization method. In addition, we evaluate the cost and planning schedules of different case studies, according to the configuration of resources in the multi-energy system.

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“…Conversion to mechanical power of thermal waste energy or heat, produced in plants that use fuels from waste, biofuels or solar energy, is particularly convenient for economic and environmental reasons [1]. Similar plants, having nominal sizes between 10 and 300 kW, are particularly interesting because they are able to exploit small energy resources and to easily integrate them into distributed generation systems, in which intelligent management amalgams and organizes the availability of multiple heterogeneous sources.…”

Section: Introductionmentioning

confidence: 99%

Possibility of employing a small power tangential flow turbine prototype in a micro solar concentration plant

Amelio¹,

Barbarelli²,

Rovense³

et al. 2017

IJHT

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This article describes a hypothetical use in a micro solar plant of a small power tangential flow turbine prototype, built and tested at the Department of Mechanical, Energy and Management Engineering (DIMEG) of the University of Calabria. The turbine prototype has the ability to recover efficiently energy from small sources, better than other turbines of the same size, in a wide set of operating conditions and power operations, having the possibility to regulate the flow rate without excessive losses. The micro solar powered central unit is conceived with Parabolic Trough Collectors (PTCs): the vapor pressure analysis extends from 5 to 25 bar, while the inlet turbine temperatures considered are included in the range from 180 to 283 °C. Steam pressure at the turbine discharge has been set to 1 bar, simplifying so the plant complexity and making possible CHP generation. The solar field has been dimensioned, for each of the cases examined, in relation to the rated operating temperature and steam flow rate supplying the turbine. Finally, the last 25 bar configuration has been analyzed in more detail by extrapolating the annual energy output and the average efficiency of the overall cycle, also considering the cogeneration contribution.

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Power-to-Gas integration in the Transition towards Future Urban Energy Systems

Cited by 77 publications

References 49 publications

A Review of Projected Power-to-Gas Deployment Scenarios

A Review of Projected Power-to-Gas Deployment Scenarios

A Multi-Energy System Expansion Planning Method Using a Linearized Load-Energy Curve: A Case Study in South Korea

Possibility of employing a small power tangential flow turbine prototype in a micro solar concentration plant

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