A Study of Factors Affecting National Energy Efficiency

Nevskaya, Marina A.; Raikhlin, Semen M.; Vinogradova, Victoriya V.; Belyaev, Victor V.; Khaikin, Mark M.

doi:10.3390/en16135170

Cited by 15 publications

(8 citation statements)

References 26 publications

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“…The theoretical study of the reliability of mine hoisting plants was carried out using set theory and graph theory. In addition, general probability theory and various methods of mathematical modelling were used [17,18]. Implementation and verification of the constructed mathematical models were performed using the MATLAB.v12 (Natick, MA, USA) software package [19].…”

Section: Methodsmentioning

confidence: 99%

Mathematical Logic Model for Analysing the Controllability of Mining Equipment

Shishkin,

Malozyomov,

Martyushev

et al. 2024

Mathematics

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The issues of the evaluation and prediction of the reliability and testability of mining machinery and equipment are becoming particularly relevant, since the safety of technological processes and human life is reaching a new level of realisation due to changes in mining technology. The work is devoted to the development of a logical model for analysing the controllability of mining equipment. The paper presents a model of reliability of the operation of mining equipment on the example of a mine load and passenger hoist. This generalised model is made in the form of a graph of transitions and supplemented with a system of equations. The model allows for the estimation of the reliability of equipment elements and equipment as a whole. A mathematical and logical model for the calculation of the availability and downtime coefficients of various designs of mining equipment systems is proposed. This model became the basis for the methods to calculate the optimal values of diagnostic depth. At these calculated values, the maximum value of availability factor will be obtained. In this paper, an analytical study was carried out and dependences of the readiness factor of parameters of the investigated system such as the intensity of control of technical systems, intensity of failures, etc., were constructed. The paper proposes a mathematical model to assess the reliability of mine hoisting plants through its integration into the method of improving the reliability of mine hoisting plants.

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Section: Methodsmentioning

confidence: 99%

Mathematical Logic Model for Analysing the Controllability of Mining Equipment

Shishkin,

Malozyomov,

Martyushev

et al. 2024

Mathematics

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“…The "Most likely" is the case scenario that the authors will use for further use in research due to the level of feasibility that is most suitable for economic development. The increase in demand for electricity generation is associated with the optimization of the use of electricity production capacity at existing power plants or the construction of additional power plants [15][16][17]. The "Most likely" is the case scenario that the authors will use for further use in research due to the level of feasibility that is most suitable for economic development.…”

Section: Electricity Consumption Forecasts Under the "Growing Well" G...mentioning

confidence: 99%

Energy Transition in Vietnam: A Strategic Analysis and Forecast

Nguyen,

Ponomarenko,

Nguyen

2024

Sustainability

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Energy landscapes in Asia and other regions are currently undergoing a transformation aimed at increasing the share of clean energy sources. This article analyzes and forecasts the electricity demand in Vietnam, examining existing constraints that necessitate the shift from coal to renewable energy sources. The rapid economic growth in Vietnam is driving a substantial surge in electricity demand, projected to reach 124 thousand MW by 2030 according to the National Electricity Plan, positioning Vietnam second in Southeast Asia. This surge poses a significant challenge to national energy security, given the impracticality of effective coal mining in the country and the imperative to develop renewable energy sources. Anticipating the changes in Vietnam’s energy mix by 2050, this study foresees a substantial reduction in dependence on coal production. Government investment and green energy investment funds such as JETP are strategically directed towards renewable energy sources, including solar, wind, biomass, hydrogen energy, and efficient energy storage technologies. Consequently, this research substantiates the viability of an energy transition from coal to green energy in Vietnam. The article presents an assessment of the rate of replacing coal with renewable energy sources, taking into consideration various scenarios for economic development, energy consumption growth, and the utilization of renewable energy sources.

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“…As industrial production and urbanization are growing, so is the consumption of mineral resources, which leads to growth in the volume of man-made waste and gives rise to environmental problems [1,2]. In the global energy mix, hydrocarbons are continuing to play a dominant role among other energy sources [3,4]. Within the oil and gas industry, the drilling of wells stands out as the primary source of waste generation [5].…”

Section: Introductionmentioning

confidence: 99%

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

Lebedev,

Cherepovitsyn

2024

Resources

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Drilling-waste management is of great importance in the oil and gas industry due to the substantial volume of multi-component waste generated during the production process. Improper waste handling can pose serious environmental risks, including soil and water contamination and the release of harmful chemicals. Failure to properly manage waste can result in large fines and legal consequences, as well as damage to corporate reputation. Proper drilling-waste management is essential to mitigate these risks and ensure the sustainable and responsible operation of oil and gas projects. It involves the use of advanced technologies and best practices to treat and utilize drilling waste in an environmentally safe and cost-effective manner. This article describes a feasibility study of four drilling-waste management options in the context of the Khanty-Mansi Autonomous Okrug of Russia. For ten years of the project life, the NPV under the base scenario is equal to RUB −3374.3 million, under the first scenario is equal to RUB −1466.7 million, under the second scenario is equal to RUB −1666.8 million and under the third scenario is equal to RUB −792.4 million. When considering projects, regardless of oil production, the project under the third scenario pays off in 7.8 years and the NPV is RUB 7.04 million. The MCD and MCV parameters were calculated to be 106 km and 2290 tons, respectively. Furthermore, the study estimates the ecological damage prevented and the environmental effect of each option. Quantitative risk assessments, conducted through sensitivity analysis, reveal that the fourth option, involving the conversion of drilling waste into construction materials, emerges as the most economically feasible. The study also evaluates the interaction between business and government and analyzes the current situation in the sphere of drilling-waste management, concluding with concise recommendations for both companies and official bodies.

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A Study of Factors Affecting National Energy Efficiency

Cited by 15 publications

References 26 publications

Mathematical Logic Model for Analysing the Controllability of Mining Equipment

Mathematical Logic Model for Analysing the Controllability of Mining Equipment

Energy Transition in Vietnam: A Strategic Analysis and Forecast

Waste Management during the Production Drilling Stage in the Oil and Gas Sector: A Feasibility Study

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