Analysis of component operation in power-to-gas-to-power installations

Kotowicz, J.; Węcel, Daniel; Jurczyk, Michał

doi:10.1016/j.apenergy.2018.02.050

Cited by 56 publications

(37 citation statements)

References 32 publications

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“…The obtained auxiliary power index values are relatively high, because the auxiliary devices were designed for cooperation with a fuel cell with twice higher power. In the case of cooperation with such a fuel cell, the own needs index may even decrease below 10% [6]. In the case of using a fuel cell as an autonomous source of electricity it is necessary to supply power to auxiliary devices.…”

Section: Test Facilitymentioning

confidence: 99%

“…The possibility of choosing different types of cells, with powers ranging from a few watts to even megawatts, allows using them in power supply systems of different kinds [3,4]. They can operate in individual power supply systems and can be connected to the power grid [5,6]. Hydrogen fuel cells do not have to work continuously, and they react quickly to load changes [7].…”

Section: Introductionmentioning

confidence: 99%

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Measurements Based Analysis of the Proton Exchange Membrane Fuel Cell Operation in Transient State and Power of Own Needs

Wilk

Węcel

2020

Energies

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Currently, fuel cells are increasingly used in industrial installations, means of transport, and household applications as a source of electricity and heat. The paper presents the results of experimental tests of a Proton Exchange Membrane Fuel Cell (PEMFC) at variable load, which characterizes the cell’s operation in real installations. A detailed analysis of the power needed for operation fuel cell auxiliary devices (own needs power) was carried out. An analysis of net and gross efficiency was carried out in various operating conditions of the device. The measurements made show changes in the performance of the fuel cell during step changing or smooth changing of an electric load. Load was carried out as a change in the current or a change in the resistance of the receiver. The analysis covered the times of reaching steady states and the efficiency of the fuel cell system taking into account auxiliary devices. In the final part of the article, an analysis was made of the influence of the fuel cell duration of use on obtained parameters. The analysis of the measurement results will allow determination of the possibility of using fuel cells in installations with a rapidly changing load profile and indicate possible solutions to improve the performance of the installation.

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Section: Test Facilitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measurements Based Analysis of the Proton Exchange Membrane Fuel Cell Operation in Transient State and Power of Own Needs

Wilk

Węcel

2020

Energies

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“…The economics of the PtG systems has been recently analysed [6,11] and some simplified methodologies for determining the price ratio of the electric energy sales to the purchase price of the electricity to make the H 2 production technology applied to PtG economically attractive have been recently presented [12]. Some works have included both a techno-economic [13] and a life cycle assessment to determine the performance, levelised cost and value of PtG plants purchasing electricity and selling SNG to the market, depending on the system configuration under a specific regulatory context [14].…”

Section: Introductionmentioning

confidence: 99%

Techno-economic feasibility of power to gas–oxy-fuel boiler hybrid system under uncertainty

Bailera

Hanak

Lisbona

et al. 2019

International Journal of Hydrogen Energy

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One of the main challenges associated with utilisation of the renewable energy is the need for energy storage to handle its intermittent nature. Power-toGas (PtG) represents a promising option to foster the conversion of renewable electricity into energy carriers that may attend electrical, thermal, or mechanical needs on-demand. This work aimed to incorporate a stochastic approach (Artificial Neural Network combined with Monte Carlo simulations) into the thermodynamic and economic analysis of the PtG process hybridized with an oxy-fuel boiler (modelled in Aspen Plus ®). Such approach generated probability density curves for the key techno-economic performance indicators of the PtG process. Results showed that the mean utilisation of electricity from RES, accounting for the chemical energy in SNG and heat from methanators, reached 62.6%. Besides, the probability that the discounted cash flow is positive was estimated to be only 13.4%, under the set of conditions considered in the work. This work also showed that in order to make the mean net present value positive, subsidies of 68 V/MW el h are required (with respect to the electricity consumed by PtG process from RES). This figure is similar to the financial aids received by other technologies in the current economic environment.

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“…The possibility of choosing different types of cells, with powers ranging from a few watts to even megawatts, allows using them in power supply systems of different kinds [2,3]. They can operate in individual power supply systems and can be connected to the power grid [4,5]. Hydrogen fuel cells do not have to work continuously and react quickly to load changes [6].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Proton Exchange Membrane Fuel Cell in transient operation

Wilk

Węcel

2019

E3S Web Conf.

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Currently, fuel cells are increasingly used in industrial installations, means of transport and household applications as a source of electricity and heat. The paper presents the results of experimental tests of PEMFC at variable load, which characterizes the cell's operation in real installations. The measurements made show changes in the performance of the fuel cell during step changing or smooth changing of an electric load. Load was carried out as a change in the current or a change in the resistance of the receiver. The analysis covered the times of reaching steady states and the efficiencyof the fuel cell system taking into account additional devices. The analysis of the measurement results will allow determining the possibility of using fuel cells in installations with a rapidly changingload profile and indicate possible solutions to improve the performance of the installation.

show abstract

Analysis of component operation in power-to-gas-to-power installations

Cited by 56 publications

References 32 publications

Measurements Based Analysis of the Proton Exchange Membrane Fuel Cell Operation in Transient State and Power of Own Needs

Measurements Based Analysis of the Proton Exchange Membrane Fuel Cell Operation in Transient State and Power of Own Needs

Techno-economic feasibility of power to gas–oxy-fuel boiler hybrid system under uncertainty

Analysis of the Proton Exchange Membrane Fuel Cell in transient operation

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