Primary Energy Sources of Electric Power in China

1989 ◽  
Vol 7 (5) ◽  
pp. 317-327
Author(s):  
David Denny

Electrical generation, 938 Mw, now predominantly (62%) from coal with hydro- at 29% and oil and natural gas at 9%, is expected to grow to 255,000 Mw by the year 2000. Coal will contribute 67%, oil and gas 4%, hydro- 27% and nuclear 2%. There are small, local sources of energy for power generation: geothermal, tidal and wind. Development will be affected by the availability of resources and the extent to which foreign participation is sought.

2018 ◽  
Vol 192 ◽  
pp. 03018
Author(s):  
Teerapat Laiwatthanaphaisarn ◽  
Amata Anantpinijwatna

Current world energy consumption is likely to increase over time. This is due to the growth of industry and transportation. The most important and most used energy sources are crude oil and natural gas. The consumption of energy is increasing continuously due to the economic expansion of the world fleet. At present, prices of primary energy sources such as oil and natural gas tend to increase. In addition, oil and gas are limited and likely to run out in the future. Currently, research and research on alternative energy is ongoing. To find the best alternative energy to replace in the future. Dimethyl ether is a substance that can be used as a substitute for liquefied petroleum gas (LPG) because of its similar physical properties. Most of them are used as fuel in vehicles. In addition, dimethyl ether is easier to liquefy than liquefied petroleum gas, giving advantages in terms of storage and transport, and a higher cetane value that can be used in the vehicle. Dimethyl ether is a substance that will burn completely. Dimethyl ether production has a wide variety of options. If the best option is difficult to analyse because of the complexity of the solution. Superstructure analysis will help to find alternatives for the production of dimethyl ether. Superstructure will identify the most economical alternative. The mathematical model is applied to the existing production process and new alternatives. In this work, the alternatives to produce dimethyl ether are displayed and the optimum alternative are chosen.


2014 ◽  
Vol 21 (2) ◽  
pp. 327-336 ◽  
Author(s):  
Robert Kasperek ◽  
Mirosław Wiatkowski

Abstract Adopted in 2009, the Directive of the European Parliament and of the Council on the promotion of the use of energy from renewable sources sets out the rules for how Poland is to achieve the 15% target of total primary energy from renewables by 2020. However, there are fears that the goals set out in this Directive may not be met. The share of Renewable Energy Sources (RES) in national energy consumption (150 TWh) is estimated at 8.6 TWh in 2009 and 12 TWh in 2011 (5.7 and 8% respectively). The level of RES in Poland until 2005 was approx. 7.2%. The analysis of RES technologies currently in use in Poland shows that in terms of the share in the total capacity, the 750 hydro-electric power plants which are currently in operation (with the overall capacity of almost 0.95 GW) are second only to wind power stations (2 GW). The authors have studied the Nysa Klodzka River in terms of possible locations for hydro-electric facilities. Eight locations have been identified where power plants might be constructed with installed capacities ranging from 319 to 1717 kW. The expected total annual electric power generation of these locations would stand at approx. 37.5 GWh.


2021 ◽  
Author(s):  
Stefan Ladage ◽  
Martin Blumenberg ◽  
Dieter Franke ◽  
Andreas Bahr ◽  
Rüdiger Lutz ◽  
...  

Abstract Methane emissions along the natural gas supply chain are critical for the climate benefit achievable by fuel switching from coal to natural gas in the electric power sector. For Germany, one of the world’s largest primary energy consumers, we conducted fleet-conversion modelling taking domestic and export country specific emissions in the natural gas and coal chains into account. Methane leakage rates below 4.9 % (GWP20; immediate 4.1 %) in the natural gas supply chain lead to overall reduction of greenhouse gas emissions by fuel shifting from lignite and hard coal to natural gas. Reported supply chain methane emissions for Germany’s natural gas mix are with < < 1 % leakage rates well below this Germany-specific break-even leakage rate. Even a potential supply by U.S.-American liquefied natural gas to Germany would not exceed this critical rate. Supply chain emission scenarios demonstrate that a complete shift to natural gas would emit 30–55 % less greenhouse gases than from the coal mix. However, further abating supply chain methane emissions in the oil and gas sector should remain a prime effort, when considering natural gas as bridge fuel on the path to achieve the Paris climate goals.


Catalysts ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 944
Author(s):  
Anil C. Banerjee

Methane (the major component of natural gas) is one of the main energy sources for gas-powered turbines for power generation, and transport vehicles [...]


2021 ◽  
Vol 144 ◽  
pp. 14-21
Author(s):  
Vladimir P. Polevanov ◽  

The growth in primary energy consumption in 2019 by 1.3% was provided by renewable energy sources and natural gas, which together provided 75% of the increase. China in the period 2010–2020 held a leading position in the growth of demand for energy resources, but according to forecasts, India will join it in the current decade.


Author(s):  
Viacheslav Olegovich Mosalygin ◽  

For more than 15 years, a significant part of the budget revenues of the Russian Federation have been tax revenues from the sale of hydrocarbons, in particular oil and natural gas. Despite the desire of our government to minimize its dependence on oil and gas revenues, the government continues to implement measures to encourage both small and large companies by providing some tax-related benefits, thereby encouraging the fields to further develop and expand.


2012 ◽  
Vol 1 (4) ◽  
pp. 321 ◽  
Author(s):  
Kamran Yousaf Awan ◽  
Abdul Rashid

Electricity is a basic need of the modern world. It is impossible for an economy to sustain without electricity. Pakistan, despite having the enormous energy resources, is facing acute shortage of Electricity. The Countrys electricity demand is rising at the rate of 11% annually, while incremental rate of production is fairly flat. Presently, only 15055MW of Electric Power is being generated while peak demand has reached up to 23953MW. Therefore, nation has to strive for meeting the deficiency of 8899 MW. Installed Power Generation Capacity of Pakistan is approximately 19,855 MW among which 67.2% is generated from thermal sources (oil and gas), 29.4% from hydel, 3.3% from nuclear and 0.1% from coal. Due to increased cost of petroleum products, slow development of hydel and nuclear power generation and negligible development of coal power generation, Country is facing severe electricity crisis. This article provides the overview of electricity shortage, problems associated with energy-mix used for power generation and root causes of electricity shortage in Pakistan. It also highlights the importance and availability of Pakistans indigenous energy resources, which can be economically used for electric power generation.


2017 ◽  
Vol 89 (10) ◽  
pp. 1521-1534
Author(s):  
Michail V. Alfimov ◽  
Vladimir F. Razumov

AbstractIn this study, we discussed the state-of-art in global energy industry in a historical retrospective and the forecast of its development for the next 25 years. At least in the nearest quarter of a century, the main source of primary energy will remain the chemical energy of different hydrocarbon fuels, including natural gas, coal, oil, and biofuels. In this context, of current importance becomes the problem of more rational utilization of produced energy. We analyzed the basic physical constraints that define a maximum efficiency of energy conversion and utiliztion of primary energy sources.


2014 ◽  
Vol 29 (4) ◽  
Author(s):  
Ellen Webb ◽  
Sheila Bushkin-Bedient ◽  
Amanda Cheng ◽  
Christopher D. Kassotis ◽  
Victoria Balise ◽  
...  

AbstractUnconventional oil and gas (UOG) operations have the potential to increase air and water pollution in communities located near UOG operations. Every stage of UOG operation from well construction to extraction, operations, transportation, and distribution can lead to air and water contamination. Hundreds of chemicals are associated with the process of unconventional oil and natural gas production. In this work, we review the scientific literature providing evidence that adult and early life exposure to chemicals associated with UOG operations can result in adverse reproductive health and developmental effects in humans. Volatile organic compounds (VOCs) [including benzene, toluene, ethyl benzene, and xylene (BTEX) and formaldehyde] and heavy metals (including arsenic, cadmium and lead) are just a few of the known contributors to reduced air and water quality that pose a threat to human developmental and reproductive health. The developing fetus is particularly sensitive to environmental factors, which include air and water pollution. Research shows that there are critical windows of vulnerability during prenatal and early postnatal development, during which chemical exposures can cause potentially permanent damage to the growing embryo and fetus. Many of the air and water pollutants found near UOG operation sites are recognized as being developmental and reproductive toxicants; therefore there is a compelling need to increase our knowledge of the potential health consequences for adults, infants, and children from these chemicals through rapid and thorough health research investigation.


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