scholarly journals Conversion of Biomass of Bagasse to Syngas Through Downdraft Gasification

2018 ◽  
Vol 7 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Maryudi Maryudi ◽  
Agus Aktawan ◽  
Siti Salamah
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Energy Demand ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Reserves ◽  
Gasification Process ◽  
Gas Fuel ◽  
Gasification Products ◽  
Gasification Technology

National energy demand has been fulfilled by non-renewable energy sources, such as natural gas, petroleum, coal and so on. However, non-renewable energy reserves deplete increasingly which can cause an energy crisis. Conversion of biomass into energy becomes one of the solutions to overcome it. Indonesia has an enormous biomass potential especially from sugarcane plantation. Sugarcane plantations produce waste of bagasse abundantly. Commonly bagasse is utilized as energy source by conventional combustion.  This research studies the utilization of bagasse as energy source by gasification technology to produce gas fuel. The gasification model used in this research is downdraft gasifier equipped with cyclone to separate gas with solid or liquid gasification products. The result has shown  that gasification of bagasse has produced flammable syngas. The increase of bagasse weight increases the amount of syngas of gasification process. Carbon monoxide is the greatest content of syngas, while a few amount of H2, CH4 are also detected. Bagasse through gasification process is very potential source of alternative energy, since it is derived from waste and a cheap material.

scholarly journals PENGARUH LAJU ALIR UDARA DAN WAKTU PROSES GASIFIKASI TERHADAP GAS PRODUCER LIMBAH TANGKAI DAUN TEMBAKAU MENGGUNAKAN GASIFIER TIPE DOWNDRAFT

2017 ◽  
Vol 5 (2) ◽  
pp. 45-53 ◽  
Author(s):  
Endang Suhendi ◽  
Gilang Umar Paradise ◽  
Idham Priandana
Keyword(s):  
Renewable Energy ◽  
Waste Treatment ◽  
Renewable Energy Sources ◽  
Thermochemical Conversion ◽  
Energy Sources ◽  
Tobacco Leaf ◽  
Gasification Process ◽  
Treatment Technologies ◽  
Gas Fuel ◽  
Gasification Technology

The continued development of industry and agriculture along with unutilized of industrial and agricultural wastes properly, the waste will only be garbage which can be an interference to environment. Is required to have waste treatment technologies that are effective, efficient and environmentally friendly to utilize the waste into renewable energy sources. The way of handling this waste is to use gasification technology. Gasification is a method of thermochemical conversion of solid fuels into the syngas gas fuel in the gasifier container by supplying a gasification agent such as steam, air and others. The purpose of this research is to determine the effect of air flow rate and the time of gasification process for tobacco leaf stalks waste againts to the composition and the components of syngas. This research is conducted using a gasifier with a capacity of 2.5 kg. The research procedures are drying, crushing, sizing, gasification process, and analysis of gas compositions. The result of this research has proven that tobacco leaf stalks waste has potential to be renewable energy sources which can produce syngas using gasification process. The concentration of syngas (CO, H2 and CH4) which is the highest obtained at variation of Q = 3 m3 / h in minutes 30 with syngas concentration of 2.27% vol CH4, CO gas amounted to 7.17% vol and H2 gas amounted to 5.79 % vol.

scholarly journals Design of Renewable Energy System for a House in St. John’s, Canada

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Uday Khadodra ◽  
Md Habibur Rahaman ◽  
Mohsin Jamil
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Energy Demand ◽  
System Modeling ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Solar Irradiation ◽  
Zero Energy ◽  
Zero Energy Building ◽  
Utility Companies

During this period of rising energy demand, utility companies are at a certain point in time, unable to satisfy the overall requirements of their entire consumer population. During this kind of situation, the system, which is, at a micro-scale, can also refer to a zero-energy building, which can also be very prominent in solving this problem. Another thing is that cries of non-renewable energy sources and most of the utility companies are majorly dependent on that kind of energy source, and it keeps along with issues of global warming. A renewable energy-based power system can solve this issue.  In this paper, the solution to this problem by introducing the microscale installation of a renewable energy source at the residential level has been presented. For that here, the area selected for this project is located in St. John's, Newfoundland and Labrador, CANADA. Newfoundland is an island; hence, the proposed system would be beneficial here. Building this kind of system is the process of designing, selecting, and calculating the energy demand of equipment and, at last, synchronizing it with the grid to make it as zero energy building. This process depends upon a range of variables, including geographical location, load requirement, and solar irradiation. The required demand, system modeling, simulation, and techno-economic analysis are carried out by BEopt, HOEMR, and MATLAB software.

scholarly journals Investigation of Biofuel as a Potential Renewable Energy Source

Atmosphere ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1289
Author(s):  
M. Anwar H. Khan ◽  
Sophia Bonifacio ◽  
Joanna Clowes ◽  
Amy Foulds ◽  
Rayne Holland ◽  
...  
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Demand ◽  
Fossil Fuels ◽  
Renewable Energy Sources ◽  
Production Costs ◽  
Biofuel Production ◽  
Aviation Industry ◽  
The Impact

An accelerating global energy demand, paired with the harmful environmental effects of fossil fuels, has triggered the search for alternative, renewable energy sources. Biofuels are arguably a potential renewable energy source in the transportation industry as they can be used within current infrastructures and require less technological advances than other renewable alternatives, such as electric vehicles and nuclear power. The literature suggests biofuels can negatively impact food security and production; however, this is dependent on the type of feedstock used in biofuel production. Advanced biofuels, derived from inedible biomass, are heavily favoured but require further research and development to reach their full commercial potential. Replacing fossil fuels by biofuels can substantially reduce particulate matter (PM), carbon monoxide (CO) emissions, but simultaneously increase emissions of nitrogen oxides (NOx), acetaldehyde (CH3CHO) and peroxyacetyl nitrate (PAN), resulting in debates concerning the way biofuels should be implemented. The potential biofuel blends (FT-SPK, HEFA-SPK, ATJ-SPK and HFS-SIP) and their use as an alternative to kerosene-type fuels in the aviation industry have also been assessed. Although these fuels are currently more costly than conventional aviation fuels, possible reduction in production costs has been reported as a potential solution. A preliminary study shows that i-butanol emissions (1.8 Tg/year) as a biofuel can increase ozone levels by up to 6% in the upper troposphere, highlighting a potential climate impact. However, a larger number of studies will be needed to assess the practicalities and associated cost of using the biofuel in existing vehicles, particularly in terms of identifying any modifications to existing engine infrastructure, the impact of biofuel emissions, and their chemistry on the climate and human health, to fully determine their suitability as a potential renewable energy source.

scholarly journals Reviewing Usage, Potentials, and Limitations of Renewable Energy Sources

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2906 ◽  
Author(s):  
George E. Halkos ◽  
Eleni-Christina Gkampoura
Keyword(s):  
Climate Change ◽  
Energy Source ◽  
Renewable Energy ◽  
Energy Demand ◽  
Renewable Energy Sources ◽  
International Energy Agency ◽  
High Energy ◽  
Energy Sources ◽  
Energy Agency ◽  
Address Climate Change

The world’s ever-increasing population, combined with economic and technological growth and a new, modern way of life, has led to high energy demand and consumption. Fossil fuels have been the main energy source for many years, but their use has many negative impacts on the environment. This has made the transition to renewable energy sources necessary in order to address climate change and meet the 1.5 °C goal. This paper is a review of the different types of renewables, their potentials and limitations, and their connection to climate change, economic growth, and human health. It also examines consumers’ willingness to pay for renewables in different countries, based on the existing literature. IEA (International Energy Agency) data are analyzed, concerning renewables’ current use, the evolution of their usage, and forecasts about their future usage. Finally, policies and strategies are recommended in order to address climate change and fully integrate renewables as a sustainable energy source.

UNBRIDGEABLE GAP BETWEEN TRANSPORT POLICY AND PRACTICE IN HUNGARY / VENGRIJOS TRANSPORTO TOLITIKOS IR PRAKTIKOS TOTRŪKIS

2012 ◽  
Vol 20 (2) ◽  
pp. 104-109 ◽  
Author(s):  
Gabor Szendro ◽  
Maria Csete ◽  
Adam Torok
Keyword(s):  
Renewable Energy ◽  
Energy Demand ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Transport Sector ◽  
Energy Sources ◽  
Policy And Practice ◽  
Additional Tool ◽  
Alternative Energy Sources ◽  
Energy Share

Due to the increasing energy demand and mobility of the human population and in order to pursue sustainable development and decrease fossil fuel dependency there is a major need to use alternative energy sources. Nowadays the 20-20-20 policy is under revision. It has become clear that the transport sector on the EU level will not be able to meet the goal of 20% usage of renewable energy sources by 2020. Our paper investigates the possibilities of Hungary for reaching 10% of renewable energy sources in transport sector. Our research indicates that blending bioethanol and biodiesel with conventional fuels is not sufficient not provide an effective and alternative way to fulfill 10% part of transport-related energy demand. Further efforts are needed that can only be done by deep analysis of the current situation and active participationin policymaking as an additional tool of reaching the target: changing our social behaviour. Furthermore, our investigationshows that this general problem can occur not only in Hungary but in those European countries that targeted the 10% renewable energy share in their transport sector. Santrauka Dėl vis kylančio energijos poreikio ir gyventojų mobilumo bei siekiant įgyvendinti tvariosios plėtros principus, sumažinti priklausomybę nuo iškastinio kuro, didėja būtinumas naudoti alternatyviuosius energijos išteklius. Svarbu konkrečiau apibrėžti projekto „20–20–20“ tikslus. Akivaizdu, Europos Sąjungos lygiu transporto sektoriui nepavyks įgyvendinti, kad iki 2020 m. atsinaujinantys šaltiniai būtų naudojami 20 proc. Nagrinėjamos Vengrijos transporto sektoriaus galimybės alternatyviuosius energijos šaltinius naudoti 10 proc. Atlikus tyrimus nustatyta, kad maišyti bioetanolį ir biodyzeliną su įprastiniu kuru nėra pakankama priemonė, kad taptų efektyvia alternatyva ir transportui būtinos energijos poreikį patenkintų 10 proc. Būtinos tolesnės pastangos, dalyvaujant suinteresuotosioms šalims, išsamiai analizuoti esamą situaciją ir keisti socialinę elgseną, kad tai taptų papildoma priemone siekiant tikslo. Nustatyta, kad ši bendrojo pobūdžio problema gali kilti ne tik Vengrijoje, bet ir tose Europos šalyse, kuriose užsibrėžta atsinaujinančius šaltinius transporto srityje naudoti 10 proc.

scholarly journals Solar Park: The Next Generation Energy Source in Bangladesh

2020 ◽  
pp. 9-19
Author(s):  
Zafrin Ahmed Liza ◽  
Mohammad Rakibul Islam
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Solar Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Vital Role ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Current Scenario ◽  
Different Sources

The continuous depletion of fossil fuel reserves and threats on climate change makes it essential for searching alternative energy sources. Renewable energy can play a vital role in this regard. Solar energy is the most promising renewable energy source available so far. In this paper, the availability of solar energy in Bangladesh and the prospects of solar photovoltaic based power generation are discussed. Analysis for different sources of solar energy is revealed. Especially the current scenario and prospect of Solar Park is investigated. And the result shows that according to the future plan, Solar Park is going to hold the largest share among all the renewable energy sources. According to the Renewable Energy Master Database, the total renewable energy capacity including all categories is about 2.4 GW. Among these, solar park projects are the main contributors in terms of capacity which is 2,110.56 MW.

A Green Hybrid Solar Cell and Fuel Cell Power Plant Generating Electricity and Water

2009 ◽  
Author(s):  
Hassan Moghbelli ◽  
Robert Vartanian
Keyword(s):  
Energy Source ◽  
Global Warming ◽  
Renewable Energy ◽  
Power Plant ◽  
Natural Gas ◽  
Solar Energy ◽  
Fossil Fuel ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Gas Fuel

One major problem in the world is global warming that is now in the concern of some countries. Most countries are working on the usage of renewable energy sources such as solar energy, clean fuels like hydrogen and also increasing the efficiency of fossil fuel plant to help the global warming effect. Countries having high potential of solar energy and also natural gas as a source of hydrogen can use the finding of this research by developing usage of the solar energy converters and natural gas fuel cells for electric power plants. This paper discusses hybridization of renewable solar energy source with high efficient and clean usage of natural gas fossil fuel. Other aspects of this hybrid power plant is using the renewable energy sources as a reliable power supply with stand alone and grid connected capability which can increase network power quality. This paper also discusses the hybridization of solar energy as a renewable energy source and natural gas fuel cells as a fossil fuel and also improvement of power plant efficiency by using power electronics technology and electric energy storages.

scholarly journals Gasification of Oil Palm Shells and Empty Fruit Bunches to Produce Gas Fuel

2020 ◽  
Vol 849 ◽  
pp. 3-7
Author(s):  
Agus Aktawan ◽  
Maryudi ◽  
Siti Salamah ◽  
Erna Astuti
Keyword(s):  
Renewable Energy ◽  
Oil Palm ◽  
Point Of View ◽  
Release Time ◽  
Renewable Energy Resources ◽  
Empty Fruit Bunches ◽  
Gasification Process ◽  
Energy Needs ◽  
Gas Fuel ◽  
Gasification Technology

National energy needs have been met by non-renewable energy resources, such as natural gas, petroleum, coal and so on. However, non-renewable energy reserves are depleting and there will be an energy crisis. Conversion of biomass into energy is one solution to overcome this. Indonesia, with its biodiversity, has enormous biomass potential, especially from oil palm plantations and also sugar cane plantations. From the oil palm plantation point of view, oil palm shells and oil palm empty fruit bunches are side products. These wastes can be treated with gasification technology to produce gas fuel. The gasification tool model used in this study is a downdraft gasifier equipped with a cyclone to separate gases with solids or liquids resulting from the gasification process. The results of the gasification process show that the more feeds are introduced, the more syngas is produced during the gasification process. The more feeds, the longer the syngas release time. The two variables have a correlation, that is, between the weight of syngas and the time for syngas removal to increase in line with the addition of the amount of feed entered. Syngas analysis of oil palm empty fruit bunches contains 4.959% H2 and 5.759% CO. Whereas the analysis of syngas of oil palm shells contained 2.524% H2, 6.391% CO, and 0.895% CH4.

scholarly journals The Perspectives And Roles of Renewable Energy Sources in the Economic Development of Peripheral Areas of Hungary

2013 ◽  
Vol 2 (1) ◽  
pp. 43-46
Author(s):  
Adrienn Nagy ◽  
Kitti Kollár ◽  
László Péli
Keyword(s):  
Economic Development ◽  
Renewable Energy ◽  
Energy Demand ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Modern World ◽  
Energy Potential ◽  
Alternative Energy Sources ◽  
Peripheral Areas

Abstract The everyday use of renewable energy sources is necessary and indispensable in today’s modern world, partly because of the difficult handling of environmental problems caused by the increasing use of fossil energy sources, and partly because of the still increasing energy demand. Concerning alternative energy sources, Hungary has great potential in geothermal energy, which can mean a breakout especially for the peripheral, disadvantaged micro-regions while developing their future strategies. This was the motivation of our research. In our study, we intended to highlight the economic development perspectives of the Hungarian micro-regions lagging behind regarding the renewable energy potential.

Hydrogen energy cycle: An overview

2005 ◽  
Vol 20 (12) ◽  
pp. 3180-3187 ◽  
Author(s):  
Jim Ohi
Keyword(s):  
Energy Source ◽  
Renewable Energy ◽  
Alternative Energy ◽  
Renewable Energy Sources ◽  
Hydrogen Energy ◽  
Hydrogen Economy ◽  
Public Attention ◽  
Point Of Use ◽  
Emerging Trends ◽  
Energy Cycle

This overview will describe briefly key segments of the hydrogen energy cycle from production using various feedstocks to its end use in fuel cells to generate electrical and thermal energy. The paper will also discuss the larger societal context, the so-called “hydrogen economy,” in which such production and use of hydrogen may take place. Although most of the public attention on hydrogen has been focused on its potential as an alternative energy source to petroleum and other fossil fuels, a hydrogen economy will encompass much more than a substitution of one energy source by another. Widespread use of hydrogen as an energy carrier can transform our society in much the same way that personal computing technologies have. This transforming power arises from the unique capability of hydrogen to link renewable energy resources and zero-emission energy conversion technologies. Hydrogen can be produced from locally available renewable resources, such as solar, wind, biomass, and water, and converted to electricity or fuel at or near the point of use with only heat and water vapor as “emissions.” Hydrogen also lies at the confluence of two emerging trends that will shape our energy future during the first quarter of this century: greater reliance on renewable energy sources and the shift from large, centralized power plants to smaller, decentralized facilities located at or near the point of use. This paper describes these emerging trends and the role of hydrogen in linking them in a way that could transform our society.

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