scholarly journals ANALYSIS OF TECHNOLOGICAL SCHEMES OF ELECTRIC ENERGY GENERATION BY ALTERNATIVE ENERGY SOURCES

Author(s):  
A.M. Chernyuk ◽  
◽  
I.G. Kirisov ◽  
I.V. Suk ◽  
E.N. Karlova ◽  
...  
2008 ◽  
Vol 62 (4) ◽  
pp. 223-232
Author(s):  
Vladimir Valent ◽  
Milorad Krgovic ◽  
Marina Krsikapa ◽  
Srecko Nikolic

The available worldwide energy sources are presented. The applications of energy over the next period are considered in this study. The applications and the importance of alternative energy sources is reviewed. The emphasis is put on the necessity of developing new technologies and rationalization of energy use. The data regarding heat and electric energy, along with water applications in cellulose and paper industry are also given.


Author(s):  
Alexandru CRISTEA ◽  
Roxana MARE

The food eaten by people in their daily life must be preserved in good conditions. Therefore and for a better environment protection, the classical refrigeration systems that use a refrigerant had been removed and a solar thermo-electric cooler based on alternative energy sources was adopted. The solar energy was used in order to produce electrical energy, while the thermo-electric energy was responsible for the thermal transfer between the cooling room and the TEC modules, significantly reducing the temperature of the cold room and food products, respectively. The operation of the solar refrigerator was observed during the time of cooling one kilogram of pork meat and one litre of milk. In the case of cooling meat, the minimum temperature achieved was 1.8 ºC, respective 0.2 ºC when refrigerating milk. Considering the food refrigeration rated optimum temperature (0-4 ºC), the analysis of the experimental results highlighted the possibility of preserving meat and liquids in proper conditions by using a solar thermo-electric refrigerator, which is an ecological equipment with the pollution rate extremely low, almost null.


2020 ◽  
Vol 16 (5) ◽  
pp. 885-904
Author(s):  
M.E. Frai

Subject. The article discusses limited sources of energy nowadays and an ongoing survey of new ones. I focus on fuel and energy complexes worldwide and in Russia. Objectives. The study is to analyze the future use of alternative energy sources in the fuel and energy complex nationwide and worldwide. I review the existing energy sources of the fuel and energy complex in the global and regional markets, specifically the alternative ones. Methods. The study relies upon methods of statistics, analysis and systems approach. Results. The article demonstrates that the fuel and energy complex strongly depends on the current situation in the energy resource market, which is difficult to forecast. If we continue relying on traditional energy resources, we get exposed to some risks affecting the sustainable development of the economy. Russia should diversify the power engineering sector by developing alternative energy sources. The article sets forth the economic rationale for alternative sources and key steps Russia shall make. Conclusions and Relevance. Considering the current situation in the energy balance, alternative energy is what any advanced society seeks for, being supported by manufacturers, governmental institutions, and researchers, though low profitability and high infrastructure costs impede its development. In Russia, these challenges are even more palpable. However, even now Russia is able to find alternative energy solutions. In addition to advantages of alternative energy, which is globally proclaimed, they will also help Russia diversify and update the economic system.


2006 ◽  
Vol 5 (3) ◽  
pp. 471-486
Author(s):  
Andrius Plepys ◽  
Jean-Philippe Boutin ◽  
Giulia Gervasoni ◽  
Robert Hlep ◽  
Kristin Seyboth ◽  
...  

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