Supercapacitors by Recycling Technologies: Economic and Environmental Aspects

2020 ◽  
pp. 74-83
Keyword(s):  
Metal Oxides ◽  
Manganese Dioxide ◽  
Specific Capacitance ◽  
Storage Systems ◽  
Low Cost ◽  
Electrical Energy ◽  
Energy Generation ◽  
Cobalt Oxides ◽  
Environmental Aspects ◽  
And Storage

Nowadays, mankind is in urgent need of energy generation and storage systems. The supercapacitor is one of the important types of storage systems. The high cost of obtaining capacitor electrodes is the reason behind the researchers’ attempts to find low-cost sources. The researchers have prepared a variety of single component and hybrid electrodes by recycling various environmental wastes. The obtained materials exhibited excellent behavior in the storage of electrical energy. In this paper, we reviewed various methods of some metal oxides (such as manganese and cobalt oxides) and carbon nanosphere from environmental wastes. For example, nanoflower manganese dioxide was prepared by electrodeposition of a solution prepared from the dry batteries and gave a specific capacitance of 208.5 F/g. Carbon nanosphere was also prepared by recycling agricultural palm leaves residues and gave a specific capacitance of 309 F/g.

HOUSEHOLD WATER BALANCE AND ASSESSMENT OF WATER VOLUME FOR IRRIGATION IN AGRO LANDSCAPES OF THE KYZYLSU-YUZHNAYA BASIN

2020 ◽  
pp. 102-109
Author(s):  
D.KH. DOMULLODZHANOV ◽  
◽  
R. RAHMATILLOEV
Keyword(s):  
Water Balance ◽  
River Basin ◽  
Water Use ◽  
Storage Systems ◽  
Low Cost ◽  
Field Studies ◽  
Water Volume ◽  
Land Productivity ◽  
Household Water ◽  
And Storage

The article presents the results of the field studies and observations that carried out on the territory of the hilly, low-mountain and foothill agro landscapes of the Kyzylsu-yuzhnaya (Kyzylsu-Southern) River Basin of Tajikistan. Taking into account the high-altitude location of households and the amount of precipitation in the river basin, the annual volumes of water accumulated with the use of low-cost systems of collection and storage of precipitation have been clarified. The amount of water accumulated in the precipitation collection and storage systems has been established, the volume of water used for communal and domestic needs,the watering of livestock and the amount of water that can be used to irrigate crops in the have been determined. Possible areas of irrigation of household plots depending on the different availability of precipitation have been determined. It has been established that in wet years (with precipitation of about 10%) the amount of water collected using drip irrigation will be sufficient for irrigation of 0.13 hectares, and in dry years (with 90% of precipitation) it will be possible to irrigate only 0.03 ha of the household plot. On the basis of the basin, the total area of irrigation in wet years can be 4497 ha, and in dry years only 1087 ha. Taking into account the forecasts of population growth by 2030 and an increase in the number of households, the total area of irrigation of farmlands in wet years may reach 5703 hectares,and in dry years – 1379 hectares. Growing crops on household plots under irrigation contributes to a significant increase in land productivity and increases the efficiency of water use of the Kyzylsu-yuzhnaya basin.

Energy Conservation and Storage Systems

2002 ◽  
Vol 20 (5) ◽  
pp. 391-399 ◽  
Author(s):  
Ayhan Demirbaş
Keyword(s):  
Energy Management ◽  
Thermal Energy ◽  
Waste Heat ◽  
Storage Systems ◽  
Electrical Energy ◽  
Thermal Storage ◽  
Energy Costs ◽  
Thermal Battery ◽  
Storage Technology ◽  
And Storage

In response to increasing electrical energy costs and the desire for better lad management, thermal storage technology has recently been developed. Storage of thermal energy in the form of sensible and latent heat has become an important aspect of energy management with the emphasis on efficient use and conservation of the waste heat and solar energy in industry and buildings. Thermal storage has been characterized as a kind of thermal battery.

scholarly journals Optimal Management of Mobile Energy Generation and Storage Systems

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 203890-203900
Author(s):  
Sarra Samara ◽  
Mostafa F. Shaaban ◽  
Ahmed H. Osman
Keyword(s):  
Storage Systems ◽  
Energy Generation ◽  
Optimal Management ◽  
And Storage

scholarly journals Assessment of Efficiency of Array of Wave Energy Converters using Mike21-Bw Model, Near Bhagvati Bandar

2019 ◽  
Vol 8 (2) ◽  
pp. 3563-3569
Keyword(s):  
Wave Energy ◽  
Carbon Emission ◽  
Numerical Models ◽  
Low Cost ◽  
Wave Model ◽  
Electrical Energy ◽  
Energy Generation ◽  
Low Carbon ◽  
Ocean Wave Energy ◽  
Numerical Model Experiments

The world we live in is becoming more and more dependent on electrical energy and shortage of energy is bound to happen in the nearest future. India is the third largest in terms of power generation. Global warming and climate changes are the biggest challenge faced by mankind. Use of energy resources which are renewable and green that is producing low carbon emission is the need of the day. India has invested heavily on wind energy and solar energy. Ocean wave energy generation is renewable process with minimal carbon emission as well as less land requirement. India has a long coastline and has a tremendous scope for generation of wave energy along its coastline. Wave Energy Converter (WEC) is the device used in the wave energy extraction. For making the wave energy conversion feasible, the efficiency of a WEC is required to be assessed. For the design of WEC and assessment of its efficiency numerical models are very much useful giving the flexibility of assessing a number of alternatives at a relatively low cost. An attempt is made in this paper to estimate efficiency of an array of WECs using the Boussinesq Wave Model, namely the mathematical model MIKE21-BW. A site at Bhagvati Bandar, which is identified as hotspot for wave energy generation is considered for the installation of WECs. Numerical model experiments were carried out to find optimal configuration of an array of WECs and the findings are presented in this paper.

scholarly journals Atomic layer deposition for electrochemical energy generation and storage systems

2012 ◽  
Vol 30 (1) ◽  
pp. 010803 ◽  
Author(s):  
Qing Peng ◽  
Jay S. Lewis ◽  
Paul G. Hoertz ◽  
Jeffrey T. Glass ◽  
Gregory N. Parsons
Keyword(s):  
Atomic Layer Deposition ◽  
Storage Systems ◽  
Atomic Layer ◽  
Energy Generation ◽  
Layer Deposition ◽  
And Storage ◽  
Electrochemical Energy
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