scholarly journals Synthesis of Aluminum Foam and Its Application in reducing Noise Pollution in a Gas Power Plant Under Construction

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Majid Sarmadi ◽  
Parvin Nassiri ◽  
Fatemeh Razavian ◽  
Behnoush Khoshmanesh
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Aluminum Foam ◽  
Noise Pollution ◽  
Steel Plates ◽  
Noise Sources ◽  
Duct Wall ◽  
Exhaust Duct ◽  
Gas Power Plant ◽  
Under Construction

: The noise pollution is among the major challenges of installing the equipment and development of industries. Controlling produced noise in small power plants is a necessity for its development. The present study was conducted to predict the reduction of exhaust noise pollution in a 25 MW gas power plant using the synthesized aluminum foam in a gas power plant under the construction. The noise pollution was measured in a similar gas power plant to predict noise sources in the Tarasht gas power plant. One centimeter thick aluminum foam was synthesized with an average size of about 300 - 500 µm and a porosity of 90%. The impedance tube was used to determine the sound absorption coefficient of aluminum foam. Then, the sound pressure level was predicted by ANSYS software before and after applying aluminum foam in a simulated environment on the exhaust duct wall. Results showed that with the 10 cm of thick insulation layer includes punctuating stainless steel plates, refractory fabric, and closed-cell aluminum foam at high frequency, at least an 8 dB reduction in the noise pollution was obtained the exhaust duct wall compared to the duct wall without the aluminum foam. Aluminum foam can be used as a suitable sound insulator in the power plant industry. Furthermore, it has various advantages over other insulators, such as the resistance to moisture, heat, and vibration attenuation due to noise, proper high rigidity at a low weight, and most importantly, less environmental pollution.

scholarly journals Assessment on Energy Conversion Efficiency and GHG Emissions Rate for Coal, Natural Gas and Biomass Power Plant in Malaysia

2021 ◽  
Vol 87 (2) ◽  
pp. 145-153
Author(s):  
Radin Diana R. Ahmad ◽  
Tiong Sieh Kiong ◽  
Sazalina Zakaria ◽  
Ahmad Rosly Abbas ◽  
Chen Chai Phing ◽  
...  
Keyword(s):  
Power Plant ◽  
Natural Gas ◽  
Energy Conversion ◽  
Conversion Efficiency ◽  
Power Plants ◽  
Emission Rate ◽  
Energy Conversion Efficiency ◽  
Combined Cycle ◽  
Gas Power Plant ◽  
Biomass Power Plant

Three different power plants have been assessed in terms of energy conversion efficiency and GHGs emission rate. The power plants are coal power plant, natural gas power plant and biomass power plant. The assessments are made by collecting fuels consumption data and generated electricity data of each power plant. In addition to the data collection, observation on operational practices have also been carried out. The energy conversion efficiency and the GHGs emission rate for all power plants are recorded to be lower than the typical values proposed by the literature. The biomass power plant recorded the lowest energy conversion efficiency at 6.47 %. Meanwhile, the natural gas power plant utilizing the combined cycle gas turbine technology recorded the highest overall energy conversion efficiency at 48.35 % and rated to emit GHGs at 0.32 kg CO2e per kWh.

scholarly journals Global risk from the atmospheric dispersion of radionuclides by nuclear power plant accidents in the coming decades

2013 ◽  
Vol 13 (11) ◽  
pp. 30287-30309 ◽  
Author(s):  
T. Christoudias ◽  
Y. Proestos ◽  
J. Lelieveld
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
General Circulation ◽  
Nuclear Power ◽  
Power Plants ◽  
Atmospheric Dispersion ◽  
Circulation Model ◽  
Global Risk ◽  
The Usa ◽  
Under Construction

Abstract. We estimate the global risk from the release and atmospheric dispersion of radionuclides from nuclear power plant accidents using the EMAC atmospheric chemistry–general circulation model. We included all nuclear reactors that are currently operational, under construction and planned or proposed. We implemented constant continuous emissions from each location in the model and simulated atmospheric transport and removal via dry and wet deposition processes over 20 yr (2010–2030), driven by boundary conditions based on the IPCC A2 future emissions scenario. We present global overall and seasonal risk maps for potential surface layer concentrations and ground deposition of radionuclides, and estimate potential dosages to humans from the inhalation and the exposure to ground deposited radionuclides. We find that the risk of harmful doses due to inhalation is typically highest during boreal winter due to relatively shallow boundary layer development and reduced mixing. Based on the continued operation of the current nuclear power plants, we calculate that the risk of radioactive contamination to the citizens of the USA will remain to be highest worldwide, followed by India and France. By including stations under construction and those that are planned and proposed our results suggest that the risk will become highest in China, followed by India and the USA.

Marine steam-gas semi-closed cycle power plant for peak loads

2021 ◽  
Vol 2 ◽  
pp. 21-25
Author(s):  
Vladimir Baranovsky ◽  
Maxim Lipatov
Keyword(s):  
Diesel Engine ◽  
Power Plant ◽  
Power Plants ◽  
High Efficiency ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Closed Cycle ◽  
Peak Loads ◽  
Wide Range ◽  
Gas Power Plant

A wide range of efficient gas turbine engines has been developed at UEC NPO Saturn, Russia. Those engines can be successfully used for developing a marine steam-gas semi-closed cycle power plant to compensate peak loads on ships and vessels. This compact steam-gas power plant will demonstrate high efficiency which doesn’t change significantly depending on the load when compared to conventional steam-gas power plants. Also, this solution can possibly change the diesel engine prevalence among marine power plants.

Modeling of integrated solar combined cycle power plant (ISCC) of Hassi R'mel, Algeria

2019 ◽  
Vol 14 (3) ◽  
pp. 505-526 ◽  
Author(s):  
Nedjma Abdelhafidi ◽  
Nour El Islam Bachari ◽  
Zohra Abdelhafidi ◽  
Ali Cheknane ◽  
Abdelmotaleb Mokhnache ◽  
...  
Keyword(s):  
Power Plant ◽  
Solar Energy ◽  
Power Plants ◽  
Meteorological Data ◽  
Combined Cycle ◽  
Plant Responses ◽  
Content Type ◽  
Low Wind Speed ◽  
Gas Power Plant ◽  
Solar Electricity

Purpose Integrated solar combined cycle (ISCC) using parabolic trough collector (PTC) technology is a new power plant that has been installed in few countries to benefit from the use of hybrid solar-gas systems. The purpose of this paper is to investigate the challenges in modeling the thermal output of the hybrid solar-gas power plant and to analyze the factors that influence them. Design/methodology/approach To validate the proposal, a study was conducted on a test stand in situ and based on the statistical analysis of meteorological data of the year 2017. Such data have been brought from Abener hybrid solar-gas central of Hassi R’mel and used as an input of our model. Findings The proposal made by the authors has been simulated using MATLAB environment. The simulation results show that the net solar electricity reaches 18 per cent in June, 15 per cent in March and September, while it cannot exceed 8 per cent in December. Moreover, it shows that the power plant responses sensibly to solar energy, where the electricity output increases accordingly to the solar radiation increase. This increase in efficiency results in better economic utilization of the solar PTC equipment in such kind of hybrid solar-gas power plant. Practical implications The obtained results would be expected to provide the possibility for designing other power plants in Algeria when such conditions are met (high DNI, low wind speed, water and natural-gas availability). Originality/value This paper presents a new model able to predict the thermal solar energy and the net solar-electricity efficiency of such kind solar hybrid power plant.

scholarly journals POTENSI PEMANFAATAN CO2 DAN HIDROGEN SEBAGAI BAHAN BAKAR ALTERNATIF DI INDONESIA

2020 ◽  
Vol 16 (1) ◽  
pp. 31-38
Author(s):  
Tata Sutardi ◽  
Abdul Hamid Budiman
Keyword(s):  
Power Plant ◽  
Power Plants ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Geothermal Power Plant ◽  
Green House ◽  
Green House Gas ◽  
Geothermal Power ◽  
Gas Power Plant ◽  
Intensive Development

Indonesia has various types of energy sources, either from conventional energy sources or from newand renewable energy sources. Currently, Indonesia has a program to construct of 35 GW of coal-firedpower plant, as well as an intensive development of Geothermal power plant, since it's reserve isabundant. The construction of these types of power plants has a potency to increase Green House Gas(GHG) production, and therefore it necessarily needs to be anticipated. In 2018, there was 543 millionton of CO2 produced in Indonesia and about a half sourced from power generation sectors. Referring tothe ratio of 1 to 1.5 of CO2 converted with the process of hydrogenation, this indicates a promisingamount of methanol can be obtained. However, there are some challenges need to be overcome toachieve this beneficiary. This paper encloses a description of each challenge, with the main descriptionis on the potency of implementation in Indonesia. Some models from existing development aredescribed, to identify the process of development. This information can be used as a consideration forthe implementation in Indonesia.Keywords: CO2 utilization, Metanol formation, Hydrogen, Green House Gas, Geothermal power plant,Gas power plant

scholarly journals Transformation of coal-fired power plants on steam-gas power plants

Paliva ◽  
2021 ◽  
pp. 102-106
Author(s):  
Ondřej Hlaváček ◽  
Tomáš Hlinčík
Keyword(s):  
Power Plant ◽  
Energy Production ◽  
Power Plants ◽  
Lower Amount ◽  
The Czech Republic ◽  
Change Policy ◽  
Mate Change ◽  
Reduce Emissions ◽  
Gas Power Plant ◽  
The Eu

Currently in the EU there are bigger tendencies to reduce emissions of carbon dioxide and phasing out of coal mining and combustion. There are some possibilities to transform current coal-fired power plant to steam-gas one. The advantages of steam-gas power plant are lower amount of emissions and higher efficiency unlike coal-fired one and stability of energy production unlike wind and solar one. The article focuses on principle, description and ad-vantages of steam-gas power plant. It also mentions and compares methods of transformation current coal-fired power plant to steam-gas one. Finally, the possible expansion of these power plant in the Czech Republic is discussed, with regard to economic aspects and EU cli-mate change policy.

scholarly journals Optimization Simulation, Using Steel Plant Off-Gas for Power Generation: A Life-Cycle Cost Analysis Approach

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 2884 ◽  
Author(s):  
Yang-Kon Kim ◽  
Eul-Bum Lee
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Life Cycle Cost ◽  
Power Plants ◽  
Capital Expenditure ◽  
Thermodynamic Simulation ◽  
Cost Savings ◽  
Greenhouse Gas Mitigation ◽  
Potential Cost ◽  
Gas Power Plant

This research aims to contribute to the international desires of greenhouse gas mitigation through a study on the optimization of 100 MW off-gas power plants’ subcritical steam cycle, operating in conjunction with steel plants. The performance and fiscal efficiency of the off-gas power plants are based on data collected from Krakatau Steel plants in Indonesia, simulated and analyzed through thermodynamic simulation model (PEPSE). The three scenarios simulated for comparison are: (1) 100 MW off-gas power plant as-is operation, (2) 100 MW off-gas power plant optimized, and (3) 100 MW cogeneration off-gas power plant. The optimization of the off-gas power plant and use of steam extraction was found to have a 45 M and 26 M USD savings in comparison to the base power plant, assuming a 5.5% discount rate and 400 Million USD capital expenditure. The theoretical findings are of use to academia and industry in providing proof of potential cost-savings of integrating off-gas into existing power generation operations.

scholarly journals FUNDING AND FINANCE ISSUES RELATED TO THE DECOMMISSIONING OF BRAZILIAN NPPS

2021 ◽  
Vol 8 (3A) ◽  
Author(s):  
Daniel Artur Pinheiro Palma ◽  
Anna Leticia Barbosa De Souza ◽  
Amir Zacarias Mesquita
Keyword(s):  
Power Generation ◽  
Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Industrial Sector ◽  
Regulatory Body ◽  
Operating Life ◽  
The Subject ◽  
Under Construction ◽  
Finite Arithmetic

It has been a consensus in the Academy that, for a nation to grow and develop in economic terms, an adequate supply of power should be available to provide its industrial sector as well as the needs of its people. Brazil did in the past make the decision to use the power generated from a nuclear source in its power generation matrix. The country today has two nuclear power plants in operation, Angra I and Angra II, with a third plant currently under construction, Angra III. The Angra I facility is nearly 40 years old and, should this country not manage to extend its lease of life, it should be decommissioned and taken apart, as provisioned for in prevailing legislation. In order to face the decommissioning costs of a nuclear power generation facility a sizeable amount of financial resources should be available to implement the decommissioning plan the operator is required to submit to the regulatory body. As the expected operating life of a nuclear power plant is of 40 years, some extensions were added to it to see the facilities go through successive and different governments and economic plans. This work studies some of the economic and financial aspects that go into the decommissioning of the Angra I power plant, pursuant to the IAEA documents published on the subject, covering different scenarios for yearly interest and the manner of the deposits, such as those of an uniform series of deposits and those of a growing and finite arithmetic progression.

Fuzzy multi-objective decision making approach for nuclear power plant installation

2020 ◽  
Vol 39 (5) ◽  
pp. 6339-6350
Author(s):  
Esra Çakır ◽  
Ziya Ulukan
Keyword(s):  
Linear Programming ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Energy Supply ◽  
Energy Demand ◽  
Nuclear Power ◽  
Power Plants ◽  
Total Duration ◽  
Objective Functions ◽  
Multi Objective

Due to the increase in energy demand, many countries suffer from energy poverty because of insufficient and expensive energy supply. Plans to use alternative power like nuclear power for electricity generation are being revived among developing countries. Decisions for installation of power plants need to be based on careful assessment of future energy supply and demand, economic and financial implications and requirements for technology transfer. Since the problem involves many vague parameters, a fuzzy model should be an appropriate approach for dealing with this problem. This study develops a Fuzzy Multi-Objective Linear Programming (FMOLP) model for solving the nuclear power plant installation problem in fuzzy environment. FMOLP approach is recommended for cases where the objective functions are imprecise and can only be stated within a certain threshold level. The proposed model attempts to minimize total duration time, total cost and maximize the total crash time of the installation project. By using FMOLP, the weighted additive technique can also be applied in order to transform the model into Fuzzy Multiple Weighted-Objective Linear Programming (FMWOLP) to control the objective values such that all decision makers target on each criterion can be met. The optimum solution with the achievement level for both of the models (FMOLP and FMWOLP) are compared with each other. FMWOLP results in better performance as the overall degree of satisfaction depends on the weight given to the objective functions. A numerical example demonstrates the feasibility of applying the proposed models to nuclear power plant installation problem.

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