scholarly journals The Status and Future Prospects of Hydropower for Sustainable Water and Energy Development in Tanzania

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Baraka Kichonge
Keyword(s):  
Water Resources ◽  
Geographical Location ◽  
Electrical Energy ◽  
Clean Energy ◽  
Energy Development ◽  
Small Hydropower ◽  
The Status ◽  
Hydropower Resource ◽  
Growing Economy ◽  
End Use

Tanzania is among the countries with the fastest growing economy in Africa and therefore the need for affordable, clean, and most importantly sustainable electrical energy to meet her ever growing demands is pressing. In recent years, the country’s electricity needs have been largely dominated by thermal generations despite the fact that Tanzania is gifted with huge hydropower resource potential approximated at 38,000 MW with only a very small portion exploited to date. However, the exploited potential is expected to grow by commissioning of identified large and medium-scale hydropower projects with a total installed capacity of 4,765 MW currently under various stages of implementation. Moreover, the geographical location of Tanzania has several benefits to support development of small hydropower projects essential for appropriate utilization of available water resources as a way of mitigating climate challenges effects. Over the last decade, the country electricity demand along with end-use of energy has witnessed significant increases as economic development spreads towards achieving Vision 2025 goals. Proposed hydropower developments are projected to have enormous benefits in the acceleration of economic growth while contributing to greenhouse gas emissions reduction. In this paper, hydropower, which is one of the domestic options for clean energy development path, its present and future potential status, and water resources are explored based on a comprehensive review of energy sector relevant documents and polices.

Research of the Status of Electrical Energy in Energy Consumption in China

2014 ◽  
Vol 701-702 ◽  
pp. 1369-1375 ◽  
Author(s):  
Yong Li Wang ◽  
Dan Shi ◽  
Li Shan Fan ◽  
Ji Qiong Han
Keyword(s):  
Energy Consumption ◽  
Electrical Energy ◽  
Energy Status ◽  
Consumption Structure ◽  
The Status ◽  
Final Energy Consumption ◽  
End Use ◽  
Save Energy ◽  
Structure Research

Nowadays, energy consumption has been to be one of the biggest problems in China. It is very important to increase proportion of electric power among the end-use energy market for optimization of end-use energy consumption structure. Research on the status of electrical energy in energy consumption for China is a critical method to improve its development. In this paper, it analyses the electrical energy status in the industry energy consumption from 1995 to 2010. Secondly, status of electrical energy in the final energy consumption has been researched deeply. Finally, it analyses the role of electrical energy in energy consumption according to the curve of data from 1995 to 2010, gives some suggestions for optimization of the energy consumption structure so that save energy.

Hydrogen Storage in Magnesium-Based Alloys

MRS Bulletin ◽  
1999 ◽  
Vol 24 (11) ◽  
pp. 40-44 ◽  
Author(s):  
R.B. Schwarz
Keyword(s):  
Energy Density ◽  
Hydrogen Storage ◽  
Alternative Energy ◽  
Distribution Systems ◽  
Electrical Energy ◽  
Clean Energy ◽  
Energy System ◽  
Liquid Hydrogen ◽  
Rechargeable Batteries ◽  
Oil Crisis

Magnesium can reversibly store about 7.7 wt% hydrogen, equivalent to more than twice the density of liquid hydrogen. This high storage capacity, coupled with a low price, suggests that magnesium and magnesium alloys could be advantageous for use in battery electrodes and gaseous-hydrogen storage systems. The use of a hydrogen-storage medium based on magnesium, combined with a fuel cell to convert the hydrogen into electrical energy, is an attractive proposition for a clean transportation system. However, the advent of such a system will require further research into magnesium-based alloys that form less stable hydrides and proton-conducting membranes that can raise the operating temperature of the current fuel cells.Following the U.S. oil crisis of 1974, research into alternative energy-storage and distribution systems was vigorously pursued. The controlled oxidation of hydrogen to form water was proposed as a clean energy system, creating a need for light and safe hydrogen-storage media. Extensive research was done on inter-metallic alloys, which can store hydrogen at densities of about 1500 cm3-H2 gas/ cm3-hydride, higher than the storage density achieved in liquid hydrogen (784 cm3/cm3 at –273°C) or in pressure tanks (˜200 cm3/cm3 at 200 atm). The interest in metal hydrides accelerated following the development of portable electronic devices (video cameras, cellular phones, laptop computers, tools, etc.), which created a consumer market for compact, rechargeable batteries. Initially, nickel-cadmium batteries fulfilled this need, but their relatively low energy density and the toxicity of cadmium helped to drive the development of higher-energy-density, less toxic, rechargeable batteries.

Past participles of strong verbs in Jutland Danish: A real-time study of regionalization and standardization

2012 ◽  
Vol 35 (2) ◽  
pp. 169-195 ◽  
Author(s):  
Torben Juel Jensen ◽  
Marie Maegaard
Keyword(s):  
Real Time ◽  
Geographical Location ◽  
Past Participle ◽  
Time Study ◽  
The Past ◽  
Time Period ◽  
The Status ◽  
Standardization Process ◽  
Large Corpus ◽  
Strong Verbs

The article presents a real-time study of standardization and regionalization processes with respect to the use of past participles of strong verbs in the western part of Denmark. Analyses of a large corpus of recordings of informants from two localities show that the use of the dialectalenform of the past participle suffix has been in decline during the last 30 years. Theenforms are replaced by three other forms, one of which is (partly) dialectal, one regional and one standard Danish. The study indicates that a regionalization process has taken place prior to the time period studied, but that it has now been overtaken by a Copenhagen-based standardization process. The study also shows interesting differences between the two localities, arguably due to the geographical location and size, and to the status of the different participle forms in the traditional local dialects.

scholarly journals ECOLOGICAL STATE OF THE ILI BASIN GEOSYSTEMS

2021 ◽  
Vol 74 (2) ◽  
pp. 78-85
Author(s):  
T. A. Bazarbayeva ◽  
◽  
B.D. Rakhyshova ◽  
A. A. Oshakbay ◽  
◽  
...  
Keyword(s):  
Water Resources ◽  
River Water ◽  
Rapid Development ◽  
Geographical Location ◽  
Mineral Fertilizers ◽  
Chemical Studies ◽  
Spring Flow ◽  
Ili River Basin ◽  
Definition Of

The article considers the geo-ecological situation of the Ili basin. The definition of the physical and geographical location, topography, soil and vegetation of the region was given. It was determined that the management of the efficient use of water resources in the Ili river basin depends primarily on the water resources of the rivers entering the basin and the level of Lake Balkhash. Factors determining the spring flow of the Ili River are shown. Due to the development of the middle reaches of the Ili River, the whole river ecosystem, rice fields and shangel massifs, excessive use of mineral fertilizers and chemicals has led to a decrease in the quality of river water. In addition to the shortage of water resources, anthropogenic measures related to the rapid development of agriculture affect the quality of river water. Physical and chemical studies of water samples taken from the Ili River were carried out. It was clearly observed that the content of trace elements of zinc, lead and iron in water is higher than the approved maximum allowable concentration. According to the results of the study, the effect of micronutrients on the human body was considered.

scholarly journals Affective power of vandalism: youth vandal practices within the concept of affective labor

2019 ◽  
Author(s):  
Irina A. Simonova
Keyword(s):  
Young People ◽  
Urban Space ◽  
Geographical Location ◽  
Actor Network Theory ◽  
Russian Science ◽  
Affective Labor ◽  
The Status ◽  
Social Topology ◽  
The City ◽  
Space Occupation

The purpose of the article is an adaptation of the affective labor concept as a method for analyzing vandalism among young people. The article examines youth vandalism as a form of affective labor and identifies two types of effects. The first type deals with the experiences of the vandals themselves which cause the new subjectivity and collectivity; the second type refers to the effects experienced by the users of vandal-altered spaces: they begin to feel differently because the damage can seriously change the status, value, user qualities of the urban environment and the emotions it induces on inhabitants. The paper analyzes youth vandalism as a strategy which not only transforms the urban space visually (physically) but also consciously constructs the affects transforming the subjectivity of young people, social positions and community forms of both the vandals themselves and the users of the city. This approach, reflecting the strategic nature of the young people’s vandal activity, shows that vandal practice should be understood as the practice of space occupation, its appropriation, its de- and reconstruction and should be based on social topology and general ideas of actor-network theory. The socio-philosophical conclusions in the paper are illustrated by the results of interviews involving 17 participants from 7 youth communities conducted in summer and autumn 2017 in Yekaterinburg. The photographs of the damaged urban spaces in various city districts were also taken; the data were mapped, and the photo database was marked according to geographical location and types of damaged buildings. This helped to draw certain conclusions about the youth vandalism phenomenon. The article outlines the prospects for the use of the proposed methodology in the analysis of vandal damage and in urban vandalism prevention activities. Acknowledgement. The research is funded by the Russian Science Foundation (project no. 17-18-01278).

scholarly journals The Global Survey of the Electrical Energy Distribution System: A Review

2019 ◽  
Vol 9 (4) ◽  
pp. 2247 ◽  
Author(s):  
Archana Sudhakar Talhar ◽  
Sanjay B. Bodkhe
Keyword(s):  
Renewable Energy ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Electrical Energy ◽  
Clean Energy ◽  
Central Intelligence Agency ◽  
Energy Sources ◽  
Power Sources ◽  
Energy Scenario ◽  
The World

This paper gives a review of energy scenario in India and other countries. Today’s demand of the world is to minimize greenhouse gas emissions, during the production of electricity. Henceforth over the world, the production of electrical power is changing by introducing abundantly available renewable energy sources like sun and wind. But, because of the intermittent nature of sustainable power sources, the electrical power network faces many problems, during the transmission and distribution of electricity. For resolving these issues, Electrical Energy Storage (EES) is acknowledged as supporting technology. This paper discusses about the world electrical energy scenario with top renowned developed countries in power generation and consumption. Contribution of traditional power sources changed after the introduction of renewable energy sources like sun and wind. Worldwide Agencies are formed like International Energy Agency (IEA), The Central Intelligence Agency, (CIS) etc. The main aim of these agencies is to provide reliable, affordable and clean energy. This paper will discuss about the regulatory authority and government policies/incentives taken by different countries.  At the end of this paper, author focuses on obstacles in implementation, development and benefits of renewable energy.

Use of Nuclear Energy and Sustainable Development

2014 ◽  
Vol 1070-1072 ◽  
pp. 353-356
Author(s):  
Fang Chen ◽  
Qiang Yao
Keyword(s):  
Sustainable Development ◽  
Nuclear Power ◽  
Nuclear Energy ◽  
Energy Use ◽  
Clean Energy ◽  
Human Society ◽  
Plant Safety ◽  
The Status ◽  
Nuclear Power Plant Safety ◽  
Safety Operation

Nuclear energy as a clean energy, with the gradual depletion of traditional energy, is particularly important. In this paper, the status of the application of nuclear technology was reviewed. And problems during the use of nuclear energy were addressed, including environmental issue generated by radioactive mineral extraction, radwaste disposal, nuclear power plant safety operation. Although, there are still some problems in the process of nuclear energy use, undeniably nuclear energy is still the hope for the future of human society. Therefore, the technical and management improvement can achieve sustainable development of nuclear energy, in order to ensure the safety of human energy use and sustainability.

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