scholarly journals An analysis of the viability of implementing steam screw machines at the facilities of energy generation enterprises to reduce the energy costs for their own need

2019 ◽  
Vol 124 ◽  
pp. 01016 ◽  
Author(s):  
D. S. Balzamov ◽  
I. G. Akhmetova ◽  
E. Y. Balzamova ◽  
G. I. Oykina ◽  
Gelu COMAN
Keyword(s):  
Water Vapor ◽  
Energy Consumption ◽  
Potential Energy ◽  
Energy Generation ◽  
Operating Conditions ◽  
Energy Sources ◽  
Energy Costs ◽  
Factors Affecting ◽  
Urgent Task ◽  
Current Operating

Reducing the energy consumption for the own needs of energy sources is an urgent task that can be solved by organizing our own energy sources by using the potential energy of water vapor in steam screw machines. The article discusses some options for installing steam screw machines at the facilities of generating companies and identifies factors affecting the return on steam screw machines in the current operating conditions.

Behavior and Performance of Refrigerant Mixture HFC125/HC290 in Heat Pumps

2013 ◽  
Author(s):  
Xiaowei Fan ◽  
Fang Wang ◽  
Huifan Zheng ◽  
Xianping Zhang ◽  
Di Xu
Keyword(s):  
Energy Consumption ◽  
Heat Pumps ◽  
Operating Conditions ◽  
Environment Friendly ◽  
Factors Affecting ◽  
Refrigerant Mixture ◽  
Important Direction ◽  
Overall Performance ◽  
And Performance ◽  
Binary Refrigerant

The refrigerant mixtures provide an important direction in selecting new environment-friendly alternative to match the desirable properties with the existing halogenated refrigerants or future use in the new devices, in which, HFCs refrigerants with zero ODP combined with HCs refrigerants with zero ODP and lower GWP are of important value in the fields of application. In the present work, research on HFC125/HC290 (25/75 by mass) binary refrigerant mixture used in heat pumps was carried out, and parameters, factors affecting the performance were investigated, and compared with that of HCFC22 under the same operating conditions. It has been found that the new mixture can improve the actual COP by 2 to 13% and hence it can reduce the energy consumption by 20 to 31.5%. The overall performance has proved that the new refrigerant mixture could be a promising substitute for HCFC22.

scholarly journals Identification of factors affecting sustainable development of renewable energy sources in transport

2019 ◽  
Vol 80 ◽  
pp. 01004
Author(s):  
Leontiy Eder ◽  
Irina Filimonova ◽  
Vasily Nemov ◽  
Anna Komarova ◽  
Vladislav Kozhevin
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Fixed Effects ◽  
Renewable Energy Sources ◽  
Environmental Taxes ◽  
Energy Sources ◽  
Energy Productivity ◽  
Factors Affecting ◽  
Motor Transport ◽  
Knowledge Intensive

At present motor transport is one of the key components of the formation of a long-term policy of sustainable economic development. Analysis of the structure of energy consumption in motor transport is necessary for better understanding of the factors that affect the increase in the share of renewable energy sources in transport and the effectiveness of specific support measures for the transition to vehicles with minimal or no greenhouse gas emissions. Models of pooled regression, regression with random and fixed effects were built in order to reveal the influence of the chosen factors on the share of renewable energy and electricity in the structure of energy consumption by vehicles. The results of evaluation for 31 European countries in the 2005-2017 showed that the criterion, which allows identifying groups of countries, is the volume of environmental transport taxes per vehicle unit. Countries with higher taxation volumes has such influencing factors as Corruption Perceptions Index, Energy productivity, Total environmental taxes per capita and Employment in high- and medium-high technology manufacturing sectors and knowledge-intensive service sectors. Consumption in countries with lower tax differentiation is influenced by index of research intensity, Corruption Perceptions Index and Shares of environmental and labour taxes.

Empirical study on influencing factors of biogas technology adoption in Khyber Pakhtunkhwa, Pakistan

2019 ◽  
Vol 31 (2) ◽  
pp. 308-329 ◽  
Author(s):  
Syed M Amir ◽  
Yonggong Liu ◽  
Ashfaq A Shah ◽  
Umer Khayyam ◽  
Zafar Mahmood
Keyword(s):  
Energy Consumption ◽  
Technology Adoption ◽  
Rural Areas ◽  
Energy Sources ◽  
Consumption Pattern ◽  
Factors Affecting ◽  
Adoption Rate ◽  
Khyber Pakhtunkhwa ◽  
Rural Pakistan ◽  
Biogas Technology

Climate change caused by global warming, and the growing scarcity of nonrenewable energy sources, have driven Pakistan to shift from a traditional energy consumption pattern to a renewable-energy-use pattern. The per capita energy consumption in rural Pakistan is very low, especially in rural areas heavily relying on traditional energy sources. This paper presents the extent of biogas technology adoption by Pakistani rural households and the factors affecting their decision to adopt the technology in three selected districts of Khyber Pakhtunkhwa province. The data were collected by interviewing 480 respondents by using a pretested and designed questionnaire. The results show that the household adoption rate of biogas technologies is low. The factors affecting the adoption decision of households included household income, access to credit, cultivated land area, the number of cattle in the household, education, and family size. The study also found fundamental barriers to the household adoption of biogas technologies, such as a lack of proper technical services by implementing organizations and insufficient governmental support. The authors make recommendations based on the findings to increase the adoption rate of biogas technologies in rural Pakistan.

scholarly journals Identification of factors affecting renewable energy consumption by country groups

2020 ◽  
Vol 157 ◽  
pp. 04033
Author(s):  
Irina Filimonova ◽  
Irina Provornaya ◽  
Vladislav Kozhevin
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
Rapid Development ◽  
Oil Prices ◽  
Energy Resources ◽  
Energy Sources ◽  
Renewable Energy Consumption ◽  
Factors Affecting

The rapid development of renewable energy sources observed in recent years however has a number of limitations for different regions limited by non-price factors such as corruption and opacity of supporting institutions, lack the necessary technology to integrate renewable into the grid, lobbying and support of the interests of the owners of traditional energy sources and others. The article attempts to analyse the factors that affect the consumption of renewable energy sources in three groups of countries, pointing to the greater importance of such indicators as the share of R & d in GDP, the availability of traditional energy resources, oil prices, transparency of institutions for some countries and their lesser importance for others.

scholarly journals Technology to Reduce Energy Costs in the Electric Steel Melting Shop

2020 ◽  
Vol 209 ◽  
pp. 07017
Author(s):  
FA Hoshimov ◽  
I U Rakhmonov ◽  
N N Niyozov
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Textile Industry ◽  
Experimental Studies ◽  
Energy Costs ◽  
Steel Melting ◽  
Electric Steel ◽  
Factors Affecting ◽  
Industrial Enterprises ◽  
Operational Factors

The article proposes a technological scheme of energy consumption for enterprises of the textile industry using technical means. On the basis of experimental studies in the field of energy saving in industrial enterprises, in particular in the tequistine industry, the main criteria for optimizing the whole variety of tasks for energy saving and assessing the corresponding energy indicators of units and enterprises in general are being developed. In addition, methodological foundations of experimental research on energy saving at operating industrial enterprises are being developed, taking into account technological and operational factors affecting energy consumption levels.

scholarly journals On the Possibility of Using Renewable Energy Sources for Operation of Microwave Convective Drying of Grain

2021 ◽  
Vol 295 ◽  
pp. 04004
Author(s):  
Dmitry Budnikov
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Renewable Energy Sources ◽  
Electric Energy ◽  
Convective Drying ◽  
Energy Sources ◽  
Energy Costs ◽  
Agricultural Enterprises ◽  
Installed Capacity ◽  
Energy Equipment

Currently, the power supply of agricultural enterprises should be designed considering not only the required installed capacity but also the peculiarities of production. Thus, the presence of livestock operations implies waste, the disposal of which entails costs. At the same time, feed preparation, including drying of fodder grain is associated with significant energy costs. Thus, the availability of biogas equipment will allow the synthesis of utilization technologies in the form of processing into biogas and the energy supply of equipment to carry out drying. At the same time, attention should be paid to technologies with reduced energy consumption for technological processes. For example, microwave convective or infrared convective drying of grain. These technologies have a reduced energy consumption for moisture removal, but the installed capacity of the equipment is higher than in traditional technologies. This work is aimed at investigating the ratio of heat and electric energy expended in the process of microwave convective drying and the choice of possible renewable energy sources for the implementation of technological operations. Considering that drying of grain is mainly carried out during the harvesting period before storing, it allows considering energy equipment as a source of thermal energy in the cold period, when drying is not required.

scholarly journals Renewable energy sources in the Region of Warmia and Mazury in north-eastern Poland

2020 ◽  
Vol 154 ◽  
pp. 07002
Author(s):  
Janusz Piechocki ◽  
Maciej Neugebauer ◽  
Joanna Hałacz ◽  
Aneta Skotnicka-Siepsiak ◽  
Andrzej Lange
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Energy Use ◽  
Renewable Energy Sources ◽  
Energy Generation ◽  
Energy Sector ◽  
Heat Pumps ◽  
Energy Sources ◽  
Energy Agency ◽  
North Eastern

The region of Warmia and Mazury in Poland is fourth largest voivodeship which occupies 7,7 % of the country’s territory. The Region of Warmia and Mazury in north-eastern Poland is situated at a distance from conventional energy sources. Therefore, the Region is a Polish leader in power generation from renewable energy sources. The structure of electrical grids in the Region of Warmia and Mazury is poorly developed and insufficient. Therefore, electric power infrastructure should be expanded and modernized as part of energy sector development to increase energy efficiency as well as electricity and heat production from renewable energy sources. The Region of Warmia and Mazury is characterized by a considerable discrepancy between energy generation and energy use. It recent years, electricity consumption exceeded energy production more than 10-fold. The region has to purchase energy from external sources and develop new generation methods, in particular those that rely on renewable resources of energy. In Warmia and Mazury, the most popular renewable energy sources include biomass, wind turbines, solar and photovoltaic panels, hydropower, heat pumps and geothermal energy. The region is characterized by distributed energy generation in small polants that carter mostly to local needs. The University of Warmia and Mazury in Olsztyn has developed, in collaboration with the Warmia and Mazury Energy Agency, a renewable energy strategy for 2010-2020 in the Region of Warmia and Mazury. The strategy is consistent with the Polish Energy Policy and the national plan for the use of renewable energy sources. In the region Warmia and Mazury, efforts are being made to generate 14,000 TJ of energy from renewable sources ( approx. 18,4 % of energy consumption in the region) and 1,700 GWh of electricity (approx. 49 % of energy consumption in the region), reduce CO2 emissions in the energy sector by 1,530,000 tons, and the decrease energy consumption per unit of GDP (PLN 1 million) from 1.94 TJ to 1.67 TJ by 2020.

scholarly journals Empirical Research on the Relationship amongst Renewable Energy Consumption, Economic Growth and Foreign Direct Investment in Kazakhstan and Uzbekistan

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 332
Author(s):  
Janusz Grabara ◽  
Arsen Tleppayev ◽  
Malika Dabylova ◽  
Leonardus W. W. Mihardjo ◽  
Zdzisława Dacko-Pikiewicz
Keyword(s):  
Economic Growth ◽  
Foreign Direct Investment ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Direct Investment ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Renewable Energy Consumption ◽  
Integration Test ◽  
The Relationship

In this contemporary era, environmental problems spread at different levels in all countries of the world. Economic growth does not just depend on prioritizing the environment or improving the environmental situation. If the foreign direct investment is directed to the polluting industries, they will increase pollution and damage the environment. The purpose of the study is to consider the relationship between foreign direct investment in Kazakhstan and Uzbekistan and economic growth and renewable energy consumption. The study is based on data obtained from 1992 to 2018. The results show that there is a two-way link between foreign direct investment and renewable energy consumption in the considered two countries. The Granger causality test approach is applied to explore the causal relationship between the variables. The Johansen co-integration test approach is also employed to test for a relationship. The empirical results verify the existence of co-integration between the series. The main factors influencing renewable energy are economic growth and electricity consumption. To reduce dependence on fuel-based energy sources, Kazakhstan and Uzbekistan need to attract energy to renewable energy sources and implement energy efficiency based on rapid progress. This is because renewable energy sources play the role of an engine that stimulates the production process in the economy for all countries.

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