Developing the Cost-Estimation Technique When Switching to Best Available Power Technologies

Кондратьева, О. Е.; Roslyakov, P. V.; Skobelev, Dmitry; Гусева, Т. В.; Loktionov, Oleg A.; Åke, Mikaelsson

doi:10.1134/s004060151907005x

Cited by 6 publications

(4 citation statements)

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“…Many countries that relied heavily on coal power plants, such as Russia [15], Poland [16,17], Czechia and Slovakia [18,19] or Balkan countries [20,21], chose to follow this path. The power production sector and the associated renovation activities receive a lot of attention both from governments and researchers [22,23]. Municipal CHPs are under comparable renovation pressure due to municipal air quality, heat production costs and supply reliability and public relations [24,25].…”

Section: Current Situationmentioning

confidence: 99%

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Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Variny¹,

Kšiňanová²

2022

Pol. J. Environ. Stud.

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Repowering of industrial combined heat and power units allows reducing industrial greenhouse gases emissions. An existing industrial unit served as model in the gas turbines-based repowering study, aiming at fuel consumption and carbon dioxide emissions reduction. Following unit's model setup and verification, two conservative repowering options (hot windbox and separate gas turbine + heat recovery steam generator) were assessed from economic, energetic, and environmental point of view, including seasonal impact. Hot windbox option leads to annual power production increase by 14.3% (72.8 GWh/year), accompanied by carbon dioxide emissions reduction by 3.9 % (29.5 ktons/year) compared to the base case. The second option delivered more significant power production increase (+261.9 to +298.6 GWh/year) with CO 2 emissions, either slightly higher (+1.5 %) or modestly lower (-4.0%), than in base case depending on heat recovery efficiency from gas turbine exhaust. Both options show feasible economics with simple payback period as low as four years under favorable combination of fuel and electricity prices and CO 2 costs. External CO 2 emissions change due to the change in unit's power production further reduces the total CO 2 emissions, strongly depending on the applied power production emission factor.

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Section: Current Situationmentioning

confidence: 99%

“…Energetic indicators chosen to document the repowering impact on CHP operation are: net electric efficiency, Equation (22); and cogeneration efficiency, Equation ( 23). (22) where η el is the electric efficiency of CHP, -, P el,CHP,i is the net electric output of CHP, MW, and Q .…”

Section: Energetic and Environmental Evaluationmentioning

confidence: 99%

Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Variny¹,

Kšiňanová²

2022

Pol. J. Environ. Stud.

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“…The tests were performed mainly on a CO2 laser model CHANXAN CW 1325. When performing the experiments, the power was adjusted in the range of 1-150 watts depending on the material used and the speed of movement in the experiments varied in the range of 1-400 mm / sec [3,9,10,11]. The laser used has a wavelength of 10.6 µm and a maximum marking area: 2,5 x 1,3 m, a focal point with a laser size of 100 µm and a water-cooling system, due to the fact that the laser is powerful and requires cooling for its normal operation (Figure 1).…”

Section: Experimental Settingmentioning

confidence: 99%

Marking and Cutting of Non-metallic Products with CO₂ Laser

Долчинков

2022

J. Phys.: Conf. Ser.

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Since the discovery of the laser more than 60 years ago, research has begun on its application in various fields of technology. One of the most commonly used applications of laser technology is the cutting and marking of various materials. And while the use of different metals has been studied and used much better, the use of lasers in non-metallic materials has been studied much less. Research has been conducted with a CO2 laser on various materials -various types of textiles, felt, transparent and opaque Plexiglas and other materials that have wide application in technology and economics. The optimal parameters for performing various operations on this type of materials have been found and are shown in tabular and graphical form. Studies with different power and speed of the laser beam have been made. Based on the obtained results, the relevant conclusions are shown. These materials are widely used in industry, the manufacture of automobiles, aircraft, ships and other vehicles and machinery and the results prove the effectiveness of laser cutting and marking compared to the methods used so far to perform these operations.

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“…When making strategic decisions, the issues of choosing the type of power equipment, the methods of its production and operation are decided solely on the basis of economic parameters: specific capital costs, operating costs, profitability, payback period for a power plant construction project, etc. (Zaichenko and Shterenberg 2017;Butuzov et al, 2018;Ratner and Khrustalev, 2018;Kondrat'eva et al, 2019). The issues of environmental efficiency in this case, as a rule, are not considered, since it is believed that the use of renewable energy sources (RES) in itself automatically leads to an improvement in the environmental situation.…”

Section: Introductionmentioning

confidence: 99%

Strategic Planning of Regional Energy System Based on Life Cycle Assessment Methodology

Iosifov

Khrustalev

Ларин

et al. 2020

IJEEP

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The Krasnodar territory is considered one of most attractive regions in Russia in terms of its climatic characteristics for the development of renewable energy sources. According to the current plans of Russian Ministry of Energy, the cumulative capacity of wind generating facilities in the Krasnodar Territory will reach 405 MW by 2022. It is well known form the literature, the average installed capacity utilization factor of wind turbines currently is about 30%. Comparatively low installed capacity utilization factor of wind parks significantly increases their payback period, thereby reducing commercial attractiveness. However, from an environmental point of view, low installed capacity utilization factor of wind plant can also be a problem: this means that most of the energy and materials spent on the manufacturing of an energy object do not produce a useful output, in other words, wasted. Therefore, a promising way to increase the installed capacity utilization factor of wind and solar plants is the use of energy storage systems. But the production and disposal of chemical energy storage systems is also associated with significant negative environmental effects, therefore, in the case of their large-scale application it is necessary to correctly assess the environmental consequences of this method of increasing the installed capacity utilization factor of wind plants. In this study we evaluate on the basis of the life cycle assessment methodology two possible alternatives: (1) the use of wind parks without energy storage systems, and (2) the production of energy storage systems necessary for the accumulation of electricity produced by wind parks in the Krasnodar Territory, which cannot be supplied to the power system and, hence, is thrown away.

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Developing the Cost-Estimation Technique When Switching to Best Available Power Technologies

Cited by 6 publications

References 1 publication

Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Marking and Cutting of Non-metallic Products with CO₂ Laser

Strategic Planning of Regional Energy System Based on Life Cycle Assessment Methodology

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Developing the Cost-Estimation Technique When Switching to Best Available Power Technologies

Cited by 6 publications

References 1 publication

Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Repowering Industrial Combined Heat and Power Units: a Contribution to Cleaner Energy Production

Marking and Cutting of Non-metallic Products with CO2 Laser

Strategic Planning of Regional Energy System Based on Life Cycle Assessment Methodology

Contact Info

Product

Resources

About

Marking and Cutting of Non-metallic Products with CO₂ Laser