scholarly journals Environment Protection by Using a Solar Thermo-Electric Refrigerator for Cooling

2012 ◽  
Vol 69 (2) ◽  
Author(s):  
Alexandru CRISTEA ◽  
Roxana MARE
Keyword(s):  
Alternative Energy ◽  
Electric Energy ◽  
Electrical Energy ◽  
Energy Sources ◽  
Environment Protection ◽  
Optimum Temperature ◽  
Thermo Electric ◽  
Thermal Transfer ◽  
Alternative Energy Sources ◽  
Cold Room

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.

scholarly journals Aplikasi Tenaga Surya sebagai Sumber Energi Alternatif

2021 ◽  
Vol 4 (1) ◽  
pp. 43
Author(s):  
Nur - Hayati
Keyword(s):  
Data Collection ◽  
Community Service ◽  
Alternative Energy ◽  
Solar Power ◽  
Electrical Energy ◽  
Energy Sources ◽  
Solar Panels ◽  
Service Program ◽  
Alternative Energy Sources

This community service program aims to utilize solar power as a source of electrical energy to replace the PLN electricity source at Bopongan RT 04 Padukuhan Kauman, Tamanan, Banguntapan, Bantul. The method of implementing this abdimas begins with data collection of residents 'houses that have not yet been supplied with electricity from PLN, then socialization is carried out about the theory of solar panels to residents and ends with the installation of solar panels in residents' homes. The results of the Community Service were quite satisfying, namely residents who had not yet received PLN electricity were able to enjoy lighting with alternative energy sources.

scholarly journals Energy potentials worldwide and their importance in cellulose and paper industry

2008 ◽  
Vol 62 (4) ◽  
pp. 223-232
Author(s):  
Vladimir Valent ◽  
Milorad Krgovic ◽  
Marina Krsikapa ◽  
Srecko Nikolic
Keyword(s):  
Alternative Energy ◽  
Energy Use ◽  
New Technologies ◽  
Paper Industry ◽  
Electric Energy ◽  
Energy Sources ◽  
Alternative Energy Sources

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.

scholarly journals Pengujian Alat Modifikasi Alternator Mobil Menjadi Listrik Rumah

2019 ◽  
Vol 11 (1) ◽  
pp. 28-32
Author(s):  
Naufal Noverdi ◽  
Eka Sunitra ◽  
Maimuzar Maimuzar
Keyword(s):  
Coming Out ◽  
Alternative Energy ◽  
Mechanical Energy ◽  
Electrical Power ◽  
Electrical Energy ◽  
Energy Sources ◽  
Optimum Conditions ◽  
Fossil Energy ◽  
Final Project ◽  
Alternative Energy Sources

This paper discusses the use of alternator cars into home electricity. This paper aims to overcome the energy crisis by reducing dependence on fossil energy sources by utilizing alternative energy sources or by developing technology in the form of alternator modifications, and also from this paper we can find out the optimum conditions of rotation and generating electricity. The workings of this alternator modification tool so as to produce electrical power that is using a motor as a drive connected to the alternator produced mechanical energy converted into electrical energy and from this alternator a voltage of 12 volts comes out and goes into travo to increase the voltage to 220 Volts. From the results of the testing of this final project, the effect of rotation on the production of electrical energy coming out on this alternator modification tool is if the rotation produced is high then the power output is also good and if the rotation is slowed the power coming out will also be small. The optimum condition of this test is at 1600rpm. Key words: keywords are written in 5 words which should be a subset of paper titles, written using lowercase letters except for abbreviations, and separated by comma punctuation for between words.

scholarly journals ASSESSMENT OF THE NEGATIVE IMPACT ON THE ENVIRONMENT OF ALTERNATIVE ENERGY SOURCES

2021 ◽  
pp. 75-78
Author(s):  
PALINA PAVLOVNA PROTSENKO ◽  
◽  
TATIANA ANDREEVNA NIKOLAEVA ◽  
Keyword(s):  
Alternative Energy ◽  
Negative Impact ◽  
Electrical Energy ◽  
Environmental Problems ◽  
Energy Sources ◽  
Alternative Energy Sources

In the presented study, the task was set to analyze the environmental problems that arise during the production of electrical energy from alternative energy sources.

The development of alternative energy sources: Prospects in Russia and the world

2020 ◽  
Vol 16 (5) ◽  
pp. 885-904
Author(s):  
M.E. Frai
Keyword(s):  
Alternative Energy ◽  
Systems Approach ◽  
Energy Resource ◽  
Current Situation ◽  
Energy Sources ◽  
The Sustainable Development ◽  
Energy Complex ◽  
Alternative Energy Sources ◽  
Governmental Institutions ◽  
Key Steps

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.

ALTERNATIVE ENERGY SOURCES IN TRANSITION COUNTRIES. THE CASE OF BIO-ENERGY IN THE UKRAINE

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