scholarly journals Determination of the Electrical Energy Potential of Sawdust and its Products

2021 ◽  
Vol 10 (2) ◽  
pp. 021-027

Sawdust is often used as fuel for basic domestic needs like cooking, heating etc, with the application of the right technological procedure, the chemical energy in sawdust can be converted to electrical energy. sawdust is a usually a waste from timber processing industries and can pollute the environment if not properly disposed or utilized. Electricity can be generated from sawdust directly and sawdust can be processed into other products such as sawdust briquettes, pyrolysis oil, bioethanol and producer gas which can all be used to produce electricity using either a coal based thermal plant, oil based thermal plant and gas depending on the most suitable and efficient. As the calorific value of sawdust is dependent on the moisture content of the wood and the type of wood used, hence average calorific value of sawdust was used for this research work. In this study, the heat contents of sawdust and its various products were considered as fuels for divers power plants that is most suitable accordingly. This paper uses mathematical analysis to determine the amount of electrical energy produced from sawdust and it’s products. Sawdust briquettes was found to be the most efficient in terms of output power when a coal based thermal plant is utilized, the next being the utilization of a plain sawdust as fuel for a coal based thermal plant, the most optimal for the generation of electrical energy among the derivative of sawdust was pyrolysis oil being used as fuel in an oil based thermal plant.

Author(s):  
Augusto César de Mendonça Brasil

This chapter presents in a consolidated manner the step-by-step methodology to estimate the electrical energy potential of industrial wood residues considering the dependency of the efficiency of the power plants with their size. A function of the overall efficiency with power was obtained from a best curve fit of real data both taken from the literature and from Brazilian biomass-fired power plants. The methodology was applied to the determination of the electrical energy potential of wood industry residues in the State of Pará (data collected in 2004). Two cases were analyzed: one where a constant electrical efficiency of 25% was considered (independently of the amount of residues generated) and another where the proposed function of efficiency with power was used. Results show that in the State of Pará, the existent 675 sawmills generated 2.95 × 106 t in dry basis. When the dependency of efficiency with plant size is not considered, the electrical energy potential and average installed power (3140.4 GWh and 2 MWe) are overestimated in comparison to the herein proposed methodology (1868.8 GWh and 1 MWe). The present methodology, considering the efficiency as a function of the power, results in an average efficiency of 12.3% (lower than 25%).


Author(s):  
Anggara Trisna Nugraha ◽  
Dadang Priyambodo

The need for electrical energy in Indonesia continues to increase every year. In line with the increase in the electrification ratio to 100% in 2050, the demand for electrical energy is projected to reach 7 times, namely 1,611 TWh. To meet electricity needs, the government has created a 35 GW program, but one of the largest contributors to power generation fuel is coal with a share of 58% or around 50 GW which is estimated to be exhausted within the next 68 years. For this reason, innovations are needed in terms of fulfilling electrical energy by utilizing renewable energy potential, one of which is hydro energy, which is 45,379 MW from a total resource of 75,091 MW. Therefore, from this potential, innovations related to renewable energy have been created, namely the Hybrid Portable Underwater Turbine Hydro and Solar Energy hybrid power plant. This power plant uses an undersea current as a propulsion which is hybridized with solar power to increase the production of electrical energy. This power plant has the advantage that there is an Underwater turbine design that is resistant to underwater flow and a water flow direction to increase the work efficiency of the underwater turbine. From the test results, the portable Underwater turbine hydro produces 950 W in a day. Solar panels produce 65.6 Watts a day. The total hybrid that can be produced is 1.02 kW a day. In its implementation it can supply loads of up to 900 (VA) such as lamps, fans, TV, etc. This hybrid power plant can be a solution to help meet electricity needs in the area around Dusun Dongol, Sidoarjo through alternative electrical energy innovations.


Author(s):  
Ankit Jain ◽  
Amitesh Paul ◽  
G.L. Selokar

Desiccant cooling technology can be used to solve a variety of building comfort, quality and energy related issues. The main objective of my research work was to assess the feasibilities of utilization of solar energy for regeneration of desiccant wheel by hot air provided by solar air heater. It will help in saving electrical energy for regeneration of desiccant wheel.


Author(s):  
José Manuel Zapien-Rodríguez ◽  
Edgardo Abdiel Escoto-Sotelo ◽  
Francisco Augusto Núñez-Pérez

The energy reform promotes the use of renewable energies to face the reduction of fossil energy consumption. Michoacán is a state where agriculture proliferates, counting on a diversity of climates that favors the cultivation of a significant variety of fruits, in addition that its harvest area is abundant. On many occasions the waste generated from the harvest represents a problem for the farmers, because the volume is too much and they do not know what to do, unfortunately they opt by the illegal burning. However, biomass can be used as fuel with high thermal outputs, with a lower cost than other fuels, which represents an alternative for many industries that require combustion in their processes. Michoacán stands out continuously at the first places in the production of diverse fruts at national level, but its residues are used only for cattle consumption, so this research work not only takes into account the net harvest, it also makes an estimate of effective waste that can be considered biomass available for use in thermal processes, indicating according to its calorific value the energy potential wasted until the moment.


2015 ◽  
Vol 19 (3) ◽  
pp. 771-780 ◽  
Author(s):  
Zihnija Hasovic ◽  
Boris Cosic ◽  
Adisa Omerbegovic-Arapovic ◽  
Neven Duic

This paper investigates current and planned investments in new power plants in Bosnia and Herzegovina and impact of these investments on the energy sector, CO2 emission and internationally committed targets for electricity from renewable sources up to year 2020. Bosnia and Herzegovina possesses strong renewable energy potential, in particular hydro and biomass. However, the majority of energy production is conducted in outdated power plants and based on fossil fuels, resulting in environment pollution. New major investments The Stanari Thermal plant (300 MW) and the investment in Block 7 (450 MW) at the Thermal Plant Tuzla are again focused on fossil fuels. The power sector is also highly dependent on the hydrology as 54% of current capacities are based on large hydro power. In order to investigate how the energy system of Bosnia and Herzegovina will be affected by these investments and hydrology, the EnergyPLAN model was used. Based on the foreseen demand for year 2020 several power plants construction and hydrology scenarios have been modelled to cover a range of possibilities that may occur. This includes export orientation of Stanari plant, impact of wet, dry and average year, delayed construction of Tuzla Block 7, constrained construction of hydro power plants, and retirement of thermal units. It can be concluded that energy system can be significantly affected by delayed investments but in order to comply with renewables targets Bosnia and Herzegovina will need to explore the power production from other renewable energy sources as well.


2017 ◽  
Vol 21 (5) ◽  
pp. 1893-1903 ◽  
Author(s):  
Radoje Vujadinovic ◽  
Esad Tombarevic ◽  
Uros Karadzic

Investments in energy sector are usually long term processes both in construction and exploitation phase, and therefore require many conditions to be satisfied, mostly from legislative and technical sector. While the legislative can change in accordance with economy activities in the country, technical data (on-site measurements) which are the main base for energy facility design, need to be reliable as much as possible. Wind energy has a significant global potential which exceeds the world?s electrical energy consumptions. This paper presents the estimation of wind energy potentials in Montenegro, based on all previous available studies in this field. The wind energy potential in Montenegro is based on a combination of 3-D numerical simulations of wind fields on the entire territory, and comprehensive on-site measurements. The preliminary studies show that there is a potential of areas with high and mean values of a capacity factor about 400 MW, and annual production of 900 GWh of electric energy. The share of wind parks in the total installed power in Montenegro is planned to be about 8%, while an adequate ratio of wind parks in an annual production from renewable sources (large hydro power plants are included here) is estimated to be 11.4%. The paper presents the current state of art in the field of building of wind parks in Montenegro. A particular attention was paid to the legislation framework and strategic documents in the energy area in Montenegro.


2020 ◽  
Vol 8 (3) ◽  
pp. 42
Author(s):  
Igbo Micheal Elem ◽  
Chikeleze Praise Chukwuemeka ◽  
Augustine Ike Onyia ◽  
Igbo Nkechinyere Elem ◽  
Eze Calister Ngozi ◽  
...  

Author(s):  
Welly Yandi ◽  
Wahri Sunanda ◽  
Nada Fitsa Alfazumi

The Waste Power Plant is one of the power plants with a new renewable energy concept that utilizes waste as fuel. The processing of waste into electrical energy is carried out in two ways: the thermal conversion process and the biological conversion process to find the potential for waste that can be used as fuel to generate electricity. The analysis is needed, especially for Pangkalpinang, which currently has a lot of unprocessed waste. This research was conducted through calculations using several formulas that have been used in previous studies. From these results, the potential waste in 2015 is 97.25 tons/day and produces energy of 18548.10 MWh/year, and in 2020, it was about 186.57 tons/day and produced energy of 35547.18 MWh/year. The projection calculations are carried out to determine the potential for 2021 to 2030. Waste as much as 182523 tons/day in2021 can produce energy of as much as 34776.11 MWh/year. And in 2030, the amount of waste as much as 218132 tons/day can generate an energy potential of 41560.69 MWh/year.


2014 ◽  
Vol 12 (1) ◽  
pp. 62-64
Author(s):  
Budi Prijo Sembodo ◽  
Rony Haendra Fora ◽  
Sri Widyastuti

Wind Power Plants convert wind energy into electrical energy using wind turbines orwindmills. The problem is when in season Mitra wind / west season , fishermen catching crabs cannot directly capture crabs . The process can wait for days , until the right time to spread the net.When should wait for the weather improves fuel becomes a major problem . Fishermen do nothave the ability to purchase fuel in bulk .Results KKN PPM Theme : minimation   fuel problem ,known as fossil fuels , the use of the traditional mindset change boat engine oil into the enginefueled with energy saving environmentally friendly energy alternatives that are cheaper , achievededucation for sustainable development , economic improvement occurred residents by selling theproducts of wind energy boat engine. Method in empowerment , operational steps to correct theproblem, the volume of work in the form of JKEM and the total volume of work


2014 ◽  
Vol 699 ◽  
pp. 595-600
Author(s):  
Muhammad Anshar ◽  
Farid Nasir Ani ◽  
Ab Saman Kader

Studies on the potential of plastic solid waste (PSW) as a fuel supplement for power plant was conducted to determine the potential energy and economic value in Indonesia. In analyzing the potential energy and economic value of PSW, 15 cities provinces having municipal solid waste production of greater than 1,000 tons/day were selected. The study showed that with the total potential of PSW of around 693 tons/day, the electrical energy potential available is around 7,987 MWh/day. The PSW equivalent with coal is approximately 1,065 tons/day, and its equivalent to the oil is around 593 tons/day. In conclusion, the PSW is an environmental pollution material but have the energy and economic potential to be used as a fuel supplement for the power plants. Thereby, it can save the use of coal by means co-combustion with PSW and at the same time be able overcome the environmental problems caused by pollution PSW in Indonesia.


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