«Undeserved Profit» Problem on Modern Russia’s Resource Markets

10.12737/3652 ◽  
2014 ◽  
Vol 2 (2) ◽  
pp. 34-37
Author(s):  
Соловьев ◽  
S. Solovev ◽  
Белов ◽  
Dmitriy Belov ◽  
Протасьев ◽  
...  

One of the main problems at commercial accounting of resources (natural gas, electric energy, heat, water) is discrepancy of registered volumes (quantity) of delivered (supplied) and consumed (paid) resource. Stated treats not only a resource, but also an accounting of deliveries related to any kind of goods which quantity is defined and considered by means of measuring tools (packaging of loose products, supply of gasoline from a plant at a gas station, its further realization to consumers, etc.). It is accepted to call a discrepancy of specified volumes as imbalance. Its consequence is either an incomplete settlement of consumers with a supplier (supplier’s damage and consumers’ “undeserved profit”), or, on the contrary, consumers’ overpayment for delivered resource (supplier’s “undeserved profit” and consumers’ damage). Therefore, the resource imbalance can be classified as one of the most important economic indicators of any resource supplying process since the economic efficiency of activity of companies and organizations delivering and realizing resources to consumers depends directly on the resource imbalance value.

2013 ◽  
Vol 308 ◽  
pp. 159-164 ◽  
Author(s):  
Jozef Žarnovský ◽  
Viera Petková ◽  
Róbert Drlička ◽  
Jozef Dobránsky

The most serious sources of the air pollution are the studied company compressor stations of the transit system equipped with the number of gas turbine. [1] Pipeline parts have smaller degree of importance and gas boiler and emergency resources of thermal and electric energy have minimum influence. These sources emit into atmosphere mainly nitrogen oxide, carbon monoxide, paraffine with the exception of the methane and unburned rest of the fuel. In comparison with these emissions are emissions of sulfur dioxide and the solid contaminations substances minimal, insignificant. Along with reduction of transit performance deploys the company in recent time significantly more energy effective power units for transit of natural gas. These drive units are mainly gas turbines burning part of transported natural gas. [2] Russian natural gas is used as a fuel which in comparison with the others kinds of fuels contains only little amount of sulfur and contain almost no As, Na and heavy metals. The main parts of combustions are CO2, CO, NOx which are products of burning and N2, O2, untouched atmosphere elements. CO and NOx are considered to be harmful substances.


Energies ◽  
2019 ◽  
Vol 12 (11) ◽  
pp. 2165 ◽  
Author(s):  
Charles Kagiri ◽  
Lijun Zhang ◽  
Xiaohua Xia

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.


Author(s):  
Y. Tsujikawa ◽  
K. Kaneko ◽  
S. Fujii

In the course of the worldwide efforts to suppress the global warming, the saving energy becomes more important. Recently, the LNG (liquefied natural gas) terminals in our country have received more than 50 million tons of LNG per year. Therefore, the utilization of the cryogenic exergy in connection with the regasification of LNG gains more and more importance. The aim of this paper is the recovery of the energy consumed in liquefaction using the MGT (Mirror Gas Turbine), which is a kind of new combined cycle of a conventional gas turbine worked as a topping cycle and TG (inverted Brayton cycle) as a bottoming cycle. The optimum characteristics have been calculated and it is shown that this cycle is superior to the current-use gasification systems in employing seawater heats in terms of thermal efficiency and specific output. In the present cycle, the cold of LNG is used to cool the exhaust gas from a turbine of TG, and then the exergy of the liquefied natural gas is transformed to electric energy with a very high efficiency. The main feature of this new concept is the removal of an evaporation system using seawater.


Author(s):  
F. V. Kozak ◽  
T. V. Dikun ◽  
L. I. Gaeva ◽  
Y. M. Demyanchuk

Natural gas (methane) is widely used in the world as an alternative to the use ofliquid petroleum fuels. This makes it possible to reduce the harmfulness of emissions into theatmosphere, cheapen the use of motor vehicles, and extend the life of engines. This is especiallytrue for Ukraine with its powerful network of AGNKS. However, natural gas, despite itssignificant reserves, is an exhaustive resource, like oil. And so its value is constantly increasing.An alternative is to use biogas - a product of recycling biowaste of various origins. However, thecomposition of biogas is significantly different from natural gas. For its use, additional cleaningis required from the ballast components or, alternatively, as a fuel, a mixture of biogas andnatural gas.The prospects of using biogas in the composition of the mixture with natural gas, changesin fuel characteristics and their estimated value depending on the percentage content of thecomponents are analyzed.


2015 ◽  
Vol 11 (1) ◽  
pp. 69-75
Author(s):  
Martin Pitoňák ◽  
Milan Valuch

Abstract The aim of this paper is to point out the advantage of Cost Benefit Analysis (CBA) and its economic indicators to assess a rehabilitation of bridges. The paper includes short example of assessment of the project economic efficiency in which economic indicators are applied in order to evaluate of two technology project variants of bridge object rehabilitation. It quantifies and compares the economic results of alternative 1 with the monolithic prestress construction and alternative 2, with the composite steel - concrete bridge. The contribution reflects the current practice of economic analysis recommended by the Ministry of Transport, Construction and Regional Development.


Energies ◽  
2021 ◽  
Vol 14 (21) ◽  
pp. 6869
Author(s):  
Piotr Kułyk ◽  
Łukasz Augustowski

The research was a response to the search for alternative energy sources and the assessment of their profitability and legitimacy of use. The assessment used combined energy sources in the form of wind, solar, and natural gas energy. The research was carried out in various locations with varying degrees of sunlight and in various wind zones, which was motivated by the adopted strategy of increasing the importance of non-conventional energy sources and reducing greenhouse gas emissions. The evaluation was performed using the Homer Grid software. The studies showed the justification for the use of hybrid energy sources, combining renewable and non-renewable sources, at the current stage of development. In the conditions of the Lubuskie Voivodeship, the level of insolation was more important than the more favourable wind zone in such a model. Higher economic efficiency of the hybrid model was obtained in the southern location, with slightly less favourable conditions for wind installations. At the same time, the investments were economically profitable and allowed for their return in the perspective of at least eleven years, even at current prices.


2020 ◽  
Vol 3 (2) ◽  
pp. 196
Author(s):  
Stepan Garo Akterian

The evaluation is related to two installations for water-steam distillation in a capacity of around 10 t rose flowers in case of 24-hour operation. It was specified that the specific consumptions per 1 kg processed rose flowers are as follow: 4 kg/kg for steam, 8 MJ/kg for heat energy, 0.26 kg/kg for natural gas (PNG, CNG), 0.28 kg/kg for LPG, 0.31 kg/k g for fuel oil, 0.90 kg/kg for wood pellets, 1.54 kg/kg for wood chips, 107 kJ/kg for electric energy, 10 L/kg for cooling water and 4.2 L/kg for tap water. The specific consumptions per 1 kg produced rose oil are about 14 t/kg for steam, 29 GJ/kg for heat energy, 914 kg/kg for natural gas, 982 kg/kg for LPG, 1080 kg/kg for fuel oil, 3196 kg/kg for wood pellets, 16301 kg/kg for wood chips. The costed shares related to the price of 1 kg rose oil are as follow: 21.4 % in case of using fuel oil, 13.9 % for LPG, 9.9 % for PNG, 9.7 % for CNG, 7 % for wood pellets, 4 % for wood chips; 0.32 % for tap water, 0.17 % for electrical energy.


Author(s):  
A.L. Chaika ◽  
A.G. Cherniatevych ◽  
A.A. Sokhatsky ◽  
A.A. Moskalina ◽  
T.S. Golub ◽  
...  

The aim of the work is to study the effect of pulverized coal (PCI) on the energy indicators of the technological system of steel production «blast furnace-oxygen converter». The analysis of energy use in the technological system for the best actual periods of operation of the blast furnace (BF) using only natural gas, pulverized coal and co-injection of pulverized coal with natural gas is performed. It is shown that the technology of using PCI improves technical and economic indicators and has a positive effect on the distribution of exergic flows, exergic efficiency and environmental indicators in the system «blast furnace-oxygen converter». Comparative heat and energy and exergy analysis of actual pulverized coal consumption in the amount of 135 kg/t of pig iron compared to blowing only natural gas in the amount of 35 m3/t of pig iron showed that pulverized coal leads to a decrease in coke consumption by ~ 25% due to pulverized pulverized coal. An exergetic analysis of the predicted converter heats showed that the injection of pulverized coal to the pulpwood leads to a decrease in the total exergy supplied by ~7%, and in the case of co-application of pulverized coal with natural gas, the exergy decreases by ~ 2%. Analysis of the exergy balance of converter melting showed that a change in the consumption of pulverized coal and natural gas in the blast furnace production slightly affects the change in the exergic efficiency (up to 0.4%). In general, it is shown that the technology of using PCI improves technical and economic indicators and positively affects the distribution of exergic flows, exergic efficiency and environmental indicators in the blast furnace – oxygen converter system.


Author(s):  
Kovalenko Viktor

To determine the efficiency of biogas use in the existing industrial enterprises of the metallurgical industry of Ukraine and Zaporizhia region, in particular, the basic economic indicators of conversion of standard furnace equipment to biogas mixtures from various derivatives and sources available in the region are calculated. The technical feasibility and economic feasibility of using biogas mixtures as an alternative fuel for energy supply of thermal and heating furnaces of industrial enterprises on the example of a real object are determined. It is shown that to use low-calorie fuel in power equipment, taking into account its quality indicators, it is expedient both separately and in combination with traditional energy sources. It is revealed that the economic indicators of projects for the introduction of biogas technologies at metallurgical enterprises differ depending on many initial conditions, such as: sources of origin and chemical composition of biogas; characteristics of power equipment that is converted to such fuel; the proportion of natural gas substitution in the fuel mixture; etc. Based on the trend of constant growth in the cost of traditional energy resources, the introduction and use of their alternative and renewable counterparts in energy-intensive metallurgical enterprises is relevant and, with the right approach, cost-effective Keywords: energy efficiency, biogas technologies, biogas, natural gas, purification, enrichment, industrial furnaces, economic feasibility


Sign in / Sign up

Export Citation Format

Share Document