Optimal cost and design of an underground gas storage by ANFIS

Jelušič, Primož; Kravanja, Stojan; Žlender, Bojan

doi:10.1016/j.jngse.2018.11.003

“…We present a continuation of earlier research in which non-linear programming (NLP) optimization of a single gas cavern was described by Kravanja and Žlender (2010) and later extended to optimization of an entire UGS with any number of caverns by Žlender and Kravanja (2011), and to the optimization in different rock environments by Kravanja and Žlender (2012) and Jelušič et al (2019). The latter reference introduced a prediction of the minimal investment costs for the UGSs, with capacities from 10 to 100 million m 3 of natural gas, with the help of an adaptive network based fuzzy inference system (ANFIS).…”

Section: Discussionmentioning

confidence: 94%

Sustainability Profit Generated by the Optimization of Continuous Beams

Žula¹,

Kravanja²

2020

2nd International Conference on : Technologies &Amp; Business Models for Circular Economy: Conference Proceedings

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The 2 nd International Conference on Technologies & Business Models for Circular Economy (TBMCE) was devoted to presentations of circular economy concepts, technologies and methodologies that contribute to the shift of business entities and society as a whole to a more responsible, circular management of resources. In the framework of TBMCE 2019, we presented the Strategic Research and Innovative Partnership -Network for the Transition to Circular Economy (SRIP-CE) as a platform for establishing a successful long-term public-private partnership. The conference program included panel discussions, plenary and keynote sessions, oral and poster presentations on the following topics: Sustainable energy, Biomass and alternative raw materials, Circular business models, Secondary raw materials and functional materials, ICT in Circular Economy, Processes and technologies. TBMCE 2019 was organized by Faculty of Chemistry and Chemical Engineering, University of Maribor and held in Portorož, Slovenia at the Grand Hotel Bernardin from October 24th to October 25th, 2019. The event was under the patronage of Ministry of Economic Development and Technology.

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“…According to Žlender and Kravanja (2011) and Jelušič et al (2019), four of the most important risks which may occur during the construction/operation of an LRC and UGS can be prevented by four geomechanical constraints: the strength of the rock mass is sufficient, uplift of the rock above the cavern is prevented, collapse of the rock between the caverns is prevented and deformations of the concrete wall and steel lining are limited (large deformations or destruction of the steel lining are prevented); see also Kravanja and Žula (2018). These constraints were derived from a series of the finite element method (FEM) analyses using the Hoek-Brown failure criterion; see Hoek et al (2002).…”

Section: Discussionmentioning

confidence: 99%

“…( 1) -( 4). The safety factor against rock uplift above the cavern SFup must be, according to Žlender and Kravanja (2011) and Jelušič et al (2019), greater than a defined minimal value SFup,min, see Eq.…”

Section: Safety Factorsmentioning

confidence: 99%

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Foundry Wastes as a Potential Precursor in Alkali Activation Technology

Horvat¹,

Pavlin²,

Ducman³

2020

2nd International Conference on : Technologies &Amp; Business Models for Circular Economy: Conference Proceedings

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The 2 nd International Conference on Technologies & Business Models for Circular Economy (TBMCE) was devoted to presentations of circular economy concepts, technologies and methodologies that contribute to the shift of business entities and society as a whole to a more responsible, circular management of resources. In the framework of TBMCE 2019, we presented the Strategic Research and Innovative Partnership -Network for the Transition to Circular Economy (SRIP-CE) as a platform for establishing a successful long-term public-private partnership. The conference program included panel discussions, plenary and keynote sessions, oral and poster presentations on the following topics: Sustainable energy, Biomass and alternative raw materials, Circular business models, Secondary raw materials and functional materials, ICT in Circular Economy, Processes and technologies. TBMCE 2019 was organized by Faculty of Chemistry and Chemical Engineering, University of Maribor and held in Portorož, Slovenia at the Grand Hotel Bernardin from October 24th to October 25th, 2019. The event was under the patronage of Ministry of Economic Development and Technology.

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“…In the near past, some investigations have been carried out in the field of optimization of underground gas storages. For example, the optimization of a single gas cavern with non-linear programming (NLP) was introduced by (Kravanja & Žlender, 2010), the optimization of any number of caverns in the UGS was later presented by (Žlender & Kravanja, 2011), while the optimization in different rock environments was reported by (Kravanja & Žlender, 2012) and (Jelušič et al, 2019). The latter reference introduced a prediction of the minimal investment costs using an adaptive network based fuzzy inference system (ANFIS) for the UGSs with capacities from 10 to 100 million m 3 of natural gas.…”

Section: Topology Optimizationmentioning

confidence: 99%

3rd International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings

2022

0

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In recent years great attention has been placed by the building sector on alkali-activated technology based on metakaolin, fly ash and ground granulated blast furnace slag (GGBFS), but also on emerging precursors such as by-products from non-ferrous metallurgy. The present work focuses on the development of alkali-activated binders from two slags, one from primary and one from secondary copper production, which were finely milled, blended with GGBFS, and activated with K-based alkali silicate solution with a 1.7 SiO2/K2O molar ratio. The aggregate to paste mass ratio was 2. The mixtures were cast, and cured for a designated time at room temperature and 60% RH. The so-obtained paving blocks were then tested in accordance with European standard for concrete paving blocks. The following properties were measured: splitting tensile strength, abrasion resistance, slip and skid resistance, resistance to freeze-thaw and resistance to freeze-thaw in the presence of de-icing salts. Their properties were compared to those of commercially available concrete paving blocks, and it was found that the performance of the alkali-activated pavers was generally comparable with the concrete pavers, while certain properties (e.g., abrasion resistance, freeze-thaw resistance and freeze-thaw resistance in presence of de-icing salts) were considerably better. 2 3 RD INTERNATIONAL CONFERENCE ON TECHNOLOGIES & BUSINESS MODELS FOR CIRCULAR ECONOMY: CONFERENCE PROCEEDINGS.

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Optimal cost and design of an underground gas storage by ANFIS

Cited by 25 publications

References 30 publications

Sustainability Profit Generated by the Optimization of Continuous Beams

Sustainability Profit Generated by the Optimization of Continuous Beams

Foundry Wastes as a Potential Precursor in Alkali Activation Technology

3rd International Conference on Technologies & Business Models for Circular Economy: Conference Proceedings

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