Optimization of the distribution of compressed natural gas (CNG) refueling stations: Swiss case studies

Frick, M.; Axhausen, Kay W.; Carle, Gian; Wokaun, Alexander

doi:10.1016/j.trd.2006.10.002

Cited by 49 publications

(22 citation statements)

References 5 publications

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“…Traditionally, CH 4 is typically stored as compressed [ 5 ] or liquefied [ 6 ] natural gas, and natural gas adsorption technology (ANG) [ 7 ] is a new CH 4 storage method that can replace these conventional methods. Menon et al.…”

Section: Introductionmentioning

confidence: 99%

Methane Adsorption Properties of Mn‐Modified Graphene: A First‐Principles Study

Zhao

Chen

Song

et al. 2020

Advcd Theory and Sims

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Graphene (GR), as a 2D carbon nanomaterial with high specific surface area, is one of the primary candidates for energy‐storage applications. In this work, the adsorption properties of graphene and Mn‐modified graphene (Mn‐GR) systems for CH4 molecules are investigated, based on first‐principles density functional theory. It is found that intrinsic graphene adsorbs CH4 molecules weakly. The single side can adsorb up to 4 CH4 molecules, and the average adsorption energy is −0.220 eV per CH4. Mn atom modification can significantly improve the adsorption performance of GR system on CH4. The structure with the largest methane storage capacity is that the GR modified by two Mn atoms that are located in the spacer holes on the opposite sides. The system can adsorb 10 CH4 molecules on both sides, the CH4 adsorption amount can reach 32.93 wt%, and the average adsorption energy is −0.402 eV per CH4. The interaction between the Mn atom and graphene is mainly between the d orbital of the Mn atom and the p orbital of the C atom. After the CH4 molecule is adsorbed, charge transfer occurs between Mn atoms and CH4, which results in a Coulomb attraction and enhances the adsorption performance of CH4 molecules.

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Section: Introductionmentioning

confidence: 99%

Methane Adsorption Properties of Mn‐Modified Graphene: A First‐Principles Study

Zhao

Chen

Song

et al. 2020

Advcd Theory and Sims

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“…Research has also been undertaken in relation to the thermodynamic behaviour of the reciprocating compressor in achieving different performance goals for the CNG fuelling station [47,48,49,50]. Frick et al [51] studied the optimization of the distribution of CNG refuelling stations in Switzerland.…”

Section: Introductionmentioning

confidence: 99%

Optimized response to electricity time-of-use tariff of a compressed natural gas fuelling station

et al. 2018

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Compressed natural gas propulsion of vehicles has been shown to have advantages over petrol and diesel propulsion due to lower carbon dioxide emissions as well as the increased durability of vehicle engines. The growth of compressed natural gas as an alternative fuel to petrol and diesel can be accelerated by implementing strategies that result in the economical operation of the distribution infrastructure. Economic scheduling of power consumption is a useful strategy for reducing the cost of energy for both industrial and domestic consumers who operate in time-of-use based electricity pricing environments. In this paper, an optimal energy management strategy is proposed for the operation of a compressed natural gas fuelling station. The compressor energy consumption, being the main component of the total operating cost of the fuelling station, presents a cost saving opportunity through which optimal scheduling of operation can be used to lower cost of operation of the station. The developed model shows potential average savings of 59.3% in daily electricity costs while maximizing compressor life through minimization of compressor cycling.

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“…The ratio of target vehicle tank pressure to the pressure of the storage tank and the evolution of this ratio as the vehicle tank gets filled are shown to have an effect on the vehicle filling time and profile [20]. Further, studies to determine the optimal location of CNG stations in a network that also includes petrol and diesel fuelling stations [21] have been carried out. Kuby [5] took a deeper look at evaluating the location problem for stations serving alternative fuel vehicles (AFVs) by reviewing the state of relevant research work, and thereby concluded that drivers of AFVs exhibit deliberate behaviour in choosing where to refuel within sparse refuelling networks, with convenience weighing more significantly than price.…”

Section: Improving the Cng Station Operation Efficiencymentioning

confidence: 99%

A Hierarchical Optimisation of a Compressed Natural Gas Station for Energy and Fuelling Efficiency under a Demand Response Program

2019

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Compressed natural gas stations serve customers who have chosen compressed natural gas powered vehicles as an alternative to diesel and petrol based ones, for cost or environmental reasons. The interaction between the compressed natural gas station and electricity grid requires an energy management strategy to minimise a significant component of the operating costs of the station where demand response programs exist. Such a strategy when enhanced through integration with a control strategy for optimising gas delivery can raise the appeal of the compressed natural gas, which is associated with reduced criteria air pollutants. A hierarchical operation optimisation approach adopted in this study seeks to achieve energy cost reduction for a compressed natural gas station in a time-of-use electricity tariff environment as well as increase the vehicle fuelling efficiency. This is achieved by optimally controlling the gas dispenser and priority panel valve function under an optimised schedule of compressor operation. The results show that electricity cost savings of up to 60.08% are achieved in the upper layer optimisation while meeting vehicle gas demand over the control horizon. Further, a reduction in filling times by an average of 16.92 s is achieved through a lower layer model predictive control of the pressure-ratio-dependent fuelling process.

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Optimization of the distribution of compressed natural gas (CNG) refueling stations: Swiss case studies

Cited by 49 publications

References 5 publications

Methane Adsorption Properties of Mn‐Modified Graphene: A First‐Principles Study

Methane Adsorption Properties of Mn‐Modified Graphene: A First‐Principles Study

Optimized response to electricity time-of-use tariff of a compressed natural gas fuelling station

A Hierarchical Optimisation of a Compressed Natural Gas Station for Energy and Fuelling Efficiency under a Demand Response Program

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