Biomass Attributes, Handling, and Processing Issues for Large Power Plants

2010 ◽  
Author(s):  
Daniel Mahr
Keyword(s):  
Solid Fuel ◽  
Power Plants ◽  
Electrical Energy ◽  
Power Industry ◽  
Large Power ◽  
Economy Of Scale ◽  
On Demand ◽  
Sustainable Environment ◽  
The Cost ◽  
Conflicting Goals

The power industry is confronting challenges with seemingly conflicting goals. Large, solid fuel power plants provide the reliability and flexibility utilities require for baseload, cycling, and on-demand situations. They provide the economy of scale needed to minimize the cost of production. Consumers/industry rely on affordable, dependable electrical energy. It’s an important part of our economy and our daily lifestyle. Reducing emission levels and conserving our finite resources are key components for achieving a sustainable environment.

scholarly journals Prioritizing Energy Sources to Generate Electricity (Application of Fuzzy Logic)

2015 ◽  
Vol 10 (2) ◽  
pp. 414-421
Author(s):  
Bahareh Hashemlou ◽  
Hossein Sadeghi ◽  
Arashk Masaeli ◽  
Mohammadhadi Hajian ◽  
Shima Javaheri
Keyword(s):  
Natural Gas ◽  
Energy Demand ◽  
Power Plants ◽  
Fossil Fuels ◽  
Electrical Energy ◽  
Electricity Production ◽  
Fuzzy Preference Relations ◽  
Safety And Reliability ◽  
The Cost ◽  
Day By Day

Organizations, institutions, and different sectors of manufacturing, services and agriculture are constantly making decisions. Each of the aforementioned sectors, have strategies, tactics, and various functions that play a basic role in reaching the objectives. On the other hand, energy demand in developing countries is increasing day by day. The exact calculation of the cost per unit of electricity generated by power plants is not easy. Therefore, this study according to four sources of natural gas, nuclear energy, renewable energy and other fossil fuels other than natural gas that are used in a variety of electricity production plants is trying to clarify the ranking of generation electricity approach using "fuzzy preference relations" analysis. Accordingly, three models were used and the results showed that natural gas, with regard to the four criteria of low investment cost, low power, lack of pollution and the safety and reliability of electrical energy has priority over other alternatives. Full preferred model results also suggested that the energy of natural gas, renewable energies, nuclear and other fossil fuels should be considered in a priority for power generation. Sensitivity analysis results moreover demonstrated that the above models are not affected by the threshold values ​​and the full stability of the models is observed.

scholarly journals Pengaruh Susut Energi (Losses) Pada Jaringan Distribusi (Studi Kasus: di PT. Krakatau Daya listrik)

2020 ◽  
Vol 12 (2) ◽  
pp. 80-89
Author(s):  
Desmira Desmira
Keyword(s):  
Energy Loss ◽  
Power Plants ◽  
Voltage Drop ◽  
Electrical Energy ◽  
Work Related ◽  
Distribution Process ◽  
The Cost ◽  
Selection Stage ◽  
A Company ◽  
Research Stage

PT. Krakatau Daya Listrik is a company that distributes electricity. In the distribution process of electricity distribution from generators to consumers, there is an inconsistency with the data on electrical energy supplied from power plants to the energy that is consumed. consumers are also the background of this research. The research objective is how much energy losses (losses) in the conductor that flows from the generator to the maximum and minimum consumer consumption during 2018. This research method is 1. Preparation stage by identifying problems with energy loss (Losess), 2. Pre-Research Stage This stage is looking for reference sources that will be used either from books, internet, thesis results or practical work related to the theme taken namely energy loss, 3. Data Selection Stage This stage is data collection in accordance with the targets and objectives of this study. The results of the study were the minimum losses recorded during 2018, which was (-2.041%), and the maximum value was (1.588%). The conclusion of this research is that the smaller the size of the carrier, it means that the lower the cost of distribution. And if the smaller the size that is on the conductor, it means that the voltage drop and the average total value of distribution losses per year will be even greater.

scholarly journals Low Cost Automatic Street Light Control System With and Without Relay

2019 ◽  
Vol 8 (3) ◽  
pp. 3790-3794
Keyword(s):  
Control System ◽  
Power Plants ◽  
Low Cost ◽  
Modern Society ◽  
Electrical Energy ◽  
Modern Technology ◽  
Light Control ◽  
Utility Companies ◽  
Set Up ◽  
The Cost

modern society entirely depends on electricity for daily life. It has become the key component for modern technology, without electricity most of the equipments which we are using daily will not work at all. Internet is our gateway for knowledge and we also depend on it a lot to get the things which are surrounding us very easily. Under this situation we are not using proper electrical energy in case of street lights. Street lights are perfect solution for night base loads at most of the utility companies during 1930’s were seeking for night timed base loads especially coal based power plants. In India approximately 40 million street lights are there which will generates a total demand of 4000 MW. The cost required to satisfy this demand will also very high. In most of the places maintenance of street lights is very poor. Even though several technologies have used to automatic control of street light but they may turn into several failures because of high cost, improper maintenance, environmental effects on the components or some other major issues. In this paper a low cost maintenance free automatic street light control system is proposed which can be used with relay al well as without relay by using basic electronics components. A small experimental set up has done in laboratory and it can be concluded that the street light automatically turns on and off depends on the darkness of the environment. It can be implemented anywhere irrespective of environmental conditions without any maintenance

ELECTRICITY MARKET OF REGIONS OF UKRAINE IN THE CONTEXT OF MODERNIZATION CHANGES

2017 ◽  
Author(s):  
Serhii Pysanko ◽  
◽  
Roman Romanyuk ◽  
Olena Pavlova ◽  
Kostiantyn Pavlov ◽  
...  
Keyword(s):  
Power Systems ◽  
Electric Power ◽  
Electricity Market ◽  
Power Plants ◽  
Raw Materials ◽  
Thermal Power ◽  
Electric Power Industry ◽  
Energy System ◽  
Power Industry ◽  
Large Power

Electricity market of regions and Ukraine in the context of modernization changes The article considers the importance, structure and electricity in the fuel and energy complex of the country and regions. It was found that in the production of electricity used (TPP), hydraulic (HPP) and hydroaccumulative (PSP), nuclear (NPP) stations. The connection of electric power industry with industry is shown. The largest power plants of the regions of Ukraine were inspected. The mechanism of operation of condensing and thermal power plants is clarified. The defining principles of development and location of electric power of Ukraine are noted. The place and role of nuclear power plants in ensuring the principles of energy security of the country are described. The peculiarities of the problem of the electric power industry are highlighted, which are primarily the use of low-risk nuclear reactors, as well as the still current import of uranium ores as raw materials from Russia. Utilization of NPP waste remains an unresolved problem. Large power plants have been structured into integrated power systems, which locally form a unified state energy system. Alternative power plants are listed as centers of economic electricity, their advantages in comparison with traditional types of energy are highlighted, and the disadvantages are also emphasized.

On the prospect of introduction of plasma ignition in power boilers

2019 ◽  
Vol 12 (1) ◽  
pp. 22-28
Author(s):  
V. Ye. Mikhailov ◽  
S. P. Kolpakov ◽  
L. A. Khomenok ◽  
N. S. Shestakov
Keyword(s):  
Russian Federation ◽  
Solid Fuel ◽  
Power Plants ◽  
Thermal Power ◽  
Fuel Oil ◽  
Solid Fuels ◽  
Thermal Power Plants ◽  
Plasma Ignition ◽  
The Russian Federation ◽  
Capital Construction

One of the most important issues for modern domestic power industry is the creation and further widespread introduction of solid propellant energy units for super-critical steam parameters with high efficiency (43–46%) and improved environmental parameters. This will significantly reduce the use of natural gas.At the same time, one of the major drawbacks of the operation of pulverized coal power units is the need to use a significant amount of fuel oil during start-up and shutdown of boilers to stabilize the burning of the coal torch in the variable boiler operating modes.In this regard, solid fuel TPPs need to be provided with fuel oil facilities, with all the associated problems to ensure the performance (heating of fuel oil in winter), reliability and safety. All of the above problems increase both the TPP capital construction costs, and the electricity generating cost.A practical solution to the above problems at present is the use of a plasma technology for coal torch ignition based on thermochemical preparation of fuel for combustion. The materials of the developments of JSC “NPO CKTI” on application of plasmatrons in boilers of thermal power plants at metallurgical complexes of the Russian Federation are also considered.Plasma ignition systems for solid fuels in boilers were developed by Russian specialists and were introduced at a number of coal-fi red power plants in the Russian Federation, Mongolia, North Korea, and Kazakhstan. Plasma ignition of solid fuels is widely used in China for almost 30% of power boilers.The introduction of plasma-energy technologies will improve the energy efficiency of domestic solid-fuel thermal power plants and can be widely implemented in the modernization of boilers.During the construction of new TPPs, the construction of fuel oil facilities can be abandoned altogether, which will reduce the capital costs of the construction of thermal power plants, reduce the construction footprint, and increase the TPP safety.

Renovating the View of Cost Sharing for the Underground Low Voltage Cable Projects in Hanoi

2019 ◽  
Vol 35 (5E) ◽  
Author(s):  
Pham Thi Thu Ha ◽  
Phan Dieu Huong
Keyword(s):  
Willingness To Pay ◽  
Cost Sharing ◽  
Low Voltage ◽  
Power Grid ◽  
Field Studies ◽  
Power Industry ◽  
Well Field ◽  
The Subject ◽  
Sharing Responsibility ◽  
The Cost

Underground power grid projects in Hanoi is so urgent that it requires immediate implementation. To synchronously and quickly implement the underground power grid projects, people in charge should not follow the outdated perspectives of just including the power industry, but also need to call for the support and cost sharing responsibility from consumers. This paper aims at approaching the subject both from the producers and consumers’ perspectives to together sharing the cost of putting the power grid underground not only in Hanoi but other metropolitans in Vietnam as well. Field studies (including 104 families) at Hoan Kiem District, Hanoi and CBA method were applied to investigate the willingness to pay (WTP) level of consumers to share the cost with the power industry for the underground power grid projects in Hanoi. The overview of the results shows that cost for the underground power grid in Hoan Kiem District ranging from 30,000 VND/household/month to 46,000VND/household/month. On the other hand, the willingness to pay of a typical household of four people within Hoan Kiem District ranges from 17,000VND/month to 24,000VND/month, with the most favorable method of annual payment within a detailed timeline.

Waste minimization program in Shuaiba Industrial Area

1999 ◽  
Vol 39 (10-11) ◽  
pp. 289-295
Author(s):  
Saleh Al-Muzaini
Keyword(s):  
Solid Waste ◽  
Power Plants ◽  
Large Scale ◽  
Industrial Area ◽  
Waste Minimization ◽  
Regulatory Body ◽  
Eastern Sector ◽  
Western Sector ◽  
Petroleum Companies ◽  
The Cost

The Shuaiba Industrial Area (SIA) is located about 50 km south of Kuwait City. It accommodates most of the large-scale industries in Kuwait. The total area of the SIA (both eastern and western sectors) is about 22.98 million m2. Fifteen plants are located in the eastern sector and 23 in the western sector, including two petrochemical companies, three refineries, two power plants, a melamine company, an industrial gas corporation, a paper products company and, two steam electricity generating stations, in addition to several other industries. Therefore, only 30 percent of the land in the SIA's eastern sector and 70 percent of land in the SIA's western sector is available for future expansion. Presently, industries in the SIA generate approximately 204,000 t of solid waste. With future development in the industries in the SIA, the estimated quantities will reach 240,000 t. The Shuaiba Area Authority (SAA), a governmental regulatory body responsible for planning and development in the SIA, has recognized the problem of solid waste and has developed an industrial waste minimization program. This program would help to reduce the quantity of waste generated within the SIA and thereby reduce the cost of waste management. This paper presents a description of the waste minimization program and how it is to be implemented by major petroleum companies. The protocols employed in the waste minimization program are detailed.

scholarly journals Emerging Energy Harvesting Technology for Electro/Photo-Catalytic Water Splitting Application

Catalysts ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 142
Author(s):  
Jianfei Tang ◽  
Tianle Liu ◽  
Sijia Miao ◽  
Yuljae Cho
Keyword(s):  
Energy Harvesting ◽  
Water Splitting ◽  
Social Impact ◽  
Electrical Energy ◽  
Future Research ◽  
Daily Lives ◽  
Energy Applications ◽  
Sustainable Environment ◽  
Energy Technologies ◽  
Splitting System

In recent years, we have experienced extreme climate changes due to the global warming, continuously impacting and changing our daily lives. To build a sustainable environment and society, various energy technologies have been developed and introduced. Among them, energy harvesting, converting ambient environmental energy into electrical energy, has emerged as one of the promising technologies for a variety of energy applications. In particular, a photo (electro) catalytic water splitting system, coupled with emerging energy harvesting technology, has demonstrated high device performance, demonstrating its great social impact for the development of the new water splitting system. In this review article, we introduce and discuss in detail the emerging energy-harvesting technology for photo (electro) catalytic water splitting applications. The article includes fundamentals of photocatalytic and electrocatalytic water splitting and water splitting applications coupled with the emerging energy-harvesting technologies using piezoelectric, piezo-phototronic, pyroelectric, triboelectric, and photovoltaic effects. We comprehensively deal with different mechanisms in water splitting processes with respect to the energy harvesting processes and their effect on the water splitting systems. Lastly, new opportunities in energy harvesting-assisted water splitting are introduced together with future research directions that need to be investigated for further development of new types of water splitting systems.

scholarly journals Analytical Approach to Sampling Estimation of Underwater Tunnels Using Mechanical Profiling Sonars

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1900
Author(s):  
Vitor Augusto Machado Jorge ◽  
Pedro Daniel de Cerqueira Gava ◽  
Juan Ramon Belchior de França Silva ◽  
Thais Mancilha ◽  
Waldir Vieira ◽  
...  
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Hydroelectric Power ◽  
Large Power ◽  
Unmanned Underwater Vehicles ◽  
Power House ◽  
Simulated Environment ◽  
Sonar Sensor ◽  
Power Plant Operation ◽  
Plant Power

Hydroelectric power plants often make use of tunnels to redirect the flow of water to the plant power house. Such tunnels are often flooded and can span considerable distances. Periodical inspections of such tunnels are highly desirable since a tunnel collapse will be catastrophic, disrupting the power plant operation. In many cases, the use of Unmanned Underwater Vehicles (UUVs) equipped with mechanical profiling sonars is a suitable and affordable way to gather data to generate 3D mapping of flooded tunnels. In this paper, we study the resolution of 3D tunnel maps generated by one or more mechanical profiling sonars working in tandem, considering synchronization and occlusion problems. The article derives the analytical equations to estimate the sampling of the underwater tunnels using mechanical profiling sonars (scanning sonars). Experiments in a simulated environment using up to four sensors simultaneously are presented. We also report experimental results obtained by a UUV inside a large power plant tunnel, together with a first map of this environment using a single sonar sensor.

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