POTENSI LIMBAH PADI SEBAGAI SUMBER ENERGI ALTERNATIF DI PROVINSI SULAWESI TENGGARA

Potentials of Rice Waste as Alternative Energy Sources in Southeast Sulawesi Province. The purpose of this study is to analyze the energy potential of rice processing waste (rice straw and rice husk) in the province of Southeast Sulawesi. Grain production data used the results of the Central Statistics Agency of Southeast Sulawesi publication as well as the Central Statistics Agency of the Regency / municipality of Southeast Sulawesi. To determine the pattern of utilization of rice processing waste at the farm level, the research team conducted a survey in several locations that produce rice in Southeast Sulawesi Province. The data used for analysis were grain production in 2010 – 2018. Based on the grain production, rice straw and rice husk production were calculated, then the energy potential of the two rice processing wastes can be determined. The results of the analysis show that the average production of rice straw was 823, 665 tons; rice husk was 119,289 tons, estimated energy potential of rice straw = 9,600GJ / year and rice husk = 1,700 GJ /year

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CFD researched on rice husk gasification in a pilot fixed bed up-draft system

Science and Technology Development Journal ◽

10.32508/stdj.v19i3.571 ◽

2016 ◽

Vol 19 (3) ◽

pp. 96-109

Author(s):

Phung Thi Kim Le ◽

Viet Tan Tran ◽

Thien Luu Minh Nguyen ◽

Viet Vuong Pham ◽

Truc Thanh Nguyen ◽

...

Keyword(s):

Mathematical Modeling ◽

Rice Husk ◽

Alternative Energy ◽

Fossil Fuels ◽

Fixed Bed ◽

Steam Gasification ◽

Actual Process ◽

Ansys Fluent ◽

Alternative Energy Sources ◽

Gasification Process

Finding alternative energy sources for fossil fuels was a global matter of concern, especially in developing countries. Rice husk, an abundant biomass in Viet Nam, was used to partially replace fossil fuels by gasification process. The study was conducted on the pilot plant fixed bed up-draft gasifier with two kind of gasification agents, pure air and air-steam mixture. Mathematical modeling and computer simulations were also used to describe and optimize the gasification processes. Mathematical modeling was based on Computational Fluid Dynamics method and simulation was carried by using Ansys Fluent software. Changes in outlet composition of syngas components (CO, CO2, CH4, H2O, H2) and temperature of process, in relation with ratio of steam in gasification agents, were presented. Obtained results indicated concentration of CH4, H2 in outlet was increased significantly when using air-steam gasification agents than pure air. The discrepancies among the gasification agents were determined to improve the actual process.

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Harnessing Nigeria’s abundant solar energy potential using the DESERTEC model

Journal of Energy in Southern Africa ◽

10.17159/2413-3051/2016/v26i3a2148 ◽

2015 ◽

Vol 26 (3) ◽

pp. 105-110 ◽

Cited By ~ 1

Author(s):

Udochukwu B. Akuru ◽

Ogbonnaya I. Okoro ◽

Chibuike F. Maduko

Keyword(s):

Renewable Energy ◽

Solar Energy ◽

Alternative Energy ◽

Renewable Energy Resources ◽

Energy Potential ◽

Transmission Grid ◽

Alternative Energy Sources ◽

The North ◽

Energy Needs ◽

Fact Finding

The DESERTEC project, a European Union (EU) initiative to harness solar energy by means of Concentrated Solar Power (CSP) from Africa for use in Europe, shows the enormous potential that exists in alternative energy sources for the sub-region once there is political will. The Trans-Mediterranean Renewable Energy Corporation (TREC), a network of scientists and politicians who have taken it upon themselves to solve Europe’s energy problem using sun from Africa, conducted three studies which evaluated the potential of renewable energy resources in the Middle East and North Africa (MENA), the expected needs for water and power in EU-MENA between now and 2050 and issues relating to the construction of an electricity transmission grid connecting the EU and MENA (EU-MENA-Connection), with a formula to turn the North African desert sun into electricity and transport same to Europe. This paper harnesses the TREC fact-finding studies in order to estimate how much the same ideas can be applied in many other parts of the world, Nigeria in particular. Investigation reveals that this association exists with huge potentials for an energy-starved country like Nigeria in harnessing her abundant hot sun in the north, which could go a long way in meeting the energy needs in that part of the country and beyond. Other benefits include unlimited supplies of clean electricity, agricultural gains, and creation of new industries, new jobs and new sources of income.

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Advantages of biomass compared to traditional fuels

Bioeconomics and agrarian business ◽

10.31548/bioeconomy2020.02.096 ◽

2020 ◽

Vol 11 (2) ◽

pp. 96-104

Author(s):

L. Stepasyuk ◽

◽

O. Nahorna ◽

Keyword(s):

Natural Gas ◽

Alternative Energy ◽

Oil And Gas ◽

Private Enterprise ◽

Renewable Energy Sources ◽

Developed Countries ◽

Energy Sources ◽

Energy Potential ◽

Alternative Energy Sources ◽

The Developed Countries

Given Ukraine's high dependence on imported energy, primarily natural gas, and the availability of great biomass potential, it has been proven that bioenergy is one of the strategic directions of the sector's development in renewable energy sources. It is determined that the pace of bioenergy development in Ukraine still lags significantly behind European ones. It is established, that in the developed countries of the world use of biomass as a source of energy continues to play an important role because of a significant increase in prices for oil and gas, as well as the growing demand for protection of the environment. Therefore, the introduction of modern technologies for continuous energy production from biomass is an important condition for the solution of problems of supply of energy and prevent degradation of the environment. The possibility of using biofuels in the Kyiv region is proved, the investment attractiveness of this region as a source of thermal energy is revealed. The methodical approach to estimating the theoretical potential of waste due to the use of alternative energy sources is substantiated. The theoretical energy potential of the biomass of by-products of agricultural crops of private enterprise "Sosnova" was assessed, which made it possible to determine the prospects of an agricultural enterprise in the energy supply of the Kyiv region at the expense of biofuels. According to the generally accepted method, the theoretical energy potential of straw and vegetable waste of private enterprise "Sosnova" was calculated, which in the market turnover in 2019 amounted to 8392 tons of oil equivalent. It was determined that the predominant type of biomass in the studied enterprise were corn stalks and wheat straw. On the example of the object of the school, which is located near the investigated enterprise, the calculation of savings on heating by replacing the traditional type of fuel (natural gas) with biofuel. The calculations show that due to biofuels the company can provide 28% of the school's need for the heating season. The savings will be - 60.6 thousand UAH and its use allow you to save about 43% of fuel annually.

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Regional Disparities and Features of Solar and Wind Energy Potential of Bulgaria

International Journal of Operations Management ◽

10.18775/ijom.2757-0509.2020.15.4001 ◽

2021 ◽

Vol 1 (5) ◽

pp. 7-11

Author(s):

Georgi Belev

Keyword(s):

Renewable Energy ◽

Wind Energy ◽

Alternative Energy ◽

New Technologies ◽

Global Climate ◽

Renewable Energy Sources ◽

Energy Sources ◽

Energy Potential ◽

Alternative Energy Sources ◽

Wind Energy Potential

Global climate fluctuations and projections of deteriorating sustainable human development since the beginning of the 21st century have highlighted the need to look for alternative energy sources to carbon fuels. The utilization of solar and wind energy has become a challenge for engineers and technologists to develop new technologies for more efficient development of renewable energy sources. The purpose of this paper is to present the territorial features in the utilization of renewable energy sources – solar radiation and wind in Bulgaria. The study focuses on the regional features of the solar- and wind energy potential. Based on statistical data, the utilization of the RES potential is considered through a review of the installed capacities

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The current status, challenges and prospects of using biomass energy in Ethiopia

Biotechnology for Biofuels ◽

10.1186/s13068-021-02060-3 ◽

2021 ◽

Vol 14 (1) ◽

Author(s):

Natei Ermias Benti ◽

Gamachis Sakata Gurmesa ◽

Tegenu Argaw ◽

Abreham Berta Aneseyee ◽

Solomon Gunta ◽

...

Keyword(s):

Renewable Energy ◽

Alternative Energy ◽

Negative Impact ◽

Biomass Energy ◽

Current Status ◽

Energy Sources ◽

Energy Potential ◽

Alternative Energy Sources ◽

Socioeconomic System ◽

Biomass Availability

AbstractDespite enormous challenges in accessing sustainable energy supplies and advanced energy technologies, Ethiopia has one of the world's fastest growing economies. The development of renewable energy technology and the building of a green legacy in the country are being prioritized. The total installed capacity for electricity generation in Ethiopia is 4324.3 MW as on October, 2018. Renewable energy accounts for 96.5% of total generation; however, despite the county's enormous biomass energy potential, only 0.58% of power is generated using biomass. Ethiopia has surplus woody biomass, crop residue and animal dung resources which comprise about 141.8 million metric tons of biomass availability per year. At present the exploited potential is about 71.9 million metric tons per year. This review paper provides an in-depth assessment of Ethiopia's biomass energy availability, potential, challenges, and prospects. The findings show that, despite Ethiopia's vast biomass resource potential, the current use of modern energy from biomass is still limited. As a result, this study supports the use of biomass-based alternative energy sources without having a negative impact on the socioeconomic system or jeopardizing food security or the environment. This finding also shows the challenges, opportunities and possible solutions to tackle the problem to expand alternative energy sources. The most effective techniques for producing and utilizing alternate energy sources were also explored. Moreover, some perspectives are given based on the challenges of using efficient energy production and sustainable uses of biomass energy in Ethiopia as it could be also implemented in other developing countries. We believe that the information in this review will shed light on the current and future prospects of biomass energy deployment in Ethiopia.

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Identifikasi Daerah Prospek Panas Bumi dengan Menggunakan Teknik Pengindraan Jauh (Studi Kasus: Kecamatan Cisurupan, Kabupaten Garut)

REKA GEOMATIKA ◽

10.26760/jrg.v2018i1.2661 ◽

2019 ◽

Vol 2018 (1) ◽

Author(s):

Hary Nugroho ◽

Mohamad Farhan Fadhilah

Keyword(s):

Remote Sensing ◽

Brightness Temperature ◽

Geothermal Energy ◽

Energy Demand ◽

Alternative Energy ◽

Geological Structure ◽

Energy Sources ◽

Energy Potential ◽

Alternative Energy Sources ◽

Sensing Technology

ABSTRAKPertambahan jumlah penduduk mengakibatkan meningkatnya kebutuhan akan energi. Sumber energi dari fosil semakin hari semakin menipis sehingga perlu ada upaya pencarian energi terbarukan. Salah satu potensi energi terbarukan yang banyak tersebar di Indonesia adalah energi panas bumi. Indonesia memiliki 40% potensi energi panas bumi dunia. Umumnya daerah prospek panas bumi berada pada daerah vulkanik yang dikelilingi oleh vegetasi rapat. Salah satu cara untuk mengetahui lokasinya adalah menggunakan metode pengindraan jauh. Teknologi pengindraan jauh ini dapat digunakan pada tahap awal identifikasi yang selanjutnya dapat didalami menggunakan teknik geofisika dan geokimia. Citra pengindraan jauh yang digunakan dilakukan analisis melalui suhu kecerahan atau brightness temperature untuk selanjutnya diintegrasikan dengan data kelurusan, struktur geologi, dan manifestasi panas bumi. Hasil dari penelitian ini menunjukkan bahwa daerah prospek panas bumi terletak di kawasan Gunung Papandayan yang mencakup Desa Sirnajaya, Karamatwangi, Cisurupan, Cisero, Cidatar, Sukatani, Cipaganti, dan Sukawargi. Daerah prospek terletak di dataran tinggi dengan suhu kecerahan yang beragam antara 12,8°C-42,8°C.Kata kunci: panas bumi, pengindraan jauh, suhu kecerahan, manifestasiABSTRACTPopulation growth has resulted in increased energy demand. Energy sources from fossils will soon run out, so we need renewable alternative energy sources. One of the potential renewable energy that is widely spread in Indonesia is geothermal energy. Indonesia has 40% of the world's geothermal energy potential. Generally, geothermal prospect areas are in volcanic areas surrounded by dense vegetation. How to find out the location, one of which is the application of remote sensing methods. This remote sensing technology can be used at the initial stage of identification which can then be explored using geophysical and geochemical techniques. The image was processed and analyzed to obtain brightness temperature. These results were then integrated with geological structure, and geothermal manifestations. The prospect area obtained is located in the area of Mount Papandayan which includes the villages of Sirnajaya, Karamatwangi, Cisurupan, Cisero, Cidatar, Sukatani, Cipaganti, and Sukawargi. This region is located in the highlands with brightness temperature varying between 12.8°C-42.8°C.Keywords: geothermal, remote sensing, brightness temperature, manifestation

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Vegetable Oils – as Pure Power Source in Agricultural Farms with Positive Impact on the Environment

Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca Agriculture ◽

10.15835/buasvmcn-agr:4257 ◽

1970 ◽

Vol 66 (1) ◽

Author(s):

Paul GĂGEANU ◽

Anişoara PĂUN ◽

Valentin VLĂDUŢ ◽

Aurel DANCIU

Keyword(s):

Alternative Energy ◽

Positive Impact ◽

High Energy ◽

Energy Potential ◽

Arable Crops ◽

Alternative Energy Sources ◽

Good Account ◽

Agricultural Potential ◽

Energy Expectation ◽

Current Energy

Turning to good account the agricultural potential by encouraging alternative crops of technical plants, such as rape, aiming to provide an alternative energy source of fuel for tractors and self-propelled agricultural machines, represents a current energy expectation with extensive perspectives of development in the field cropping from Romania. During the last years the cropping of plants with a high energy potential: rape, soy beans, sunflower, sugar sorghum etc. on larger and larger surfaces has known an outstanding proportion, most of all that after EU negotiations and the implementation of the Community acquits that refers to arable crops (cereals, oil-bearing plants, protein crops, etc.) each EU-member country received a quota from the overall surface that is lower than the existing one, and thus important surfaces remained that may be used, as such, for the cropping of plants with a high energy potential aiming to assure the required energy for their own consumption in farms, micro-farms etc. (alternative energy sources). In opposition to conventional fuels, “biodiesel” has a reduced content of sulphur, its presence in the air generating acid rains. “Biodiesel” does not contain aromatic matters either, such as benzene. During “biodiesel” burning carbon dioxide is generated, however, no toxic pollutants.

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Impact of selected teleconnection pattern on solar energy potential in different climatic zones of Nigeria

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/1216/1/012002 ◽

2022 ◽

Vol 1216 (1) ◽

pp. 012002

Author(s):

O F Awe ◽

S T Ogunjo ◽

A B Rabiu ◽

O J Ajanaku ◽

I D Ijila

Keyword(s):

Solar Energy ◽

Alternative Energy ◽

Teleconnection Pattern ◽

Energy Potential ◽

Climatic Zones ◽

Teleconnection Patterns ◽

Climatic Regions ◽

Alternative Energy Sources ◽

Long Run ◽

The Impact

Abstract Meeting the energy demands and sustainable development goals in Nigeria requires investigation of potentials of alternative energy sources and possible challenges to their reliability. In this study, we investigated the impact of four (4) teleconnection patterns on the solar energy potential within different climatic zones of Nigeria. Our results indicate that there are weak and insignificant correlation between the studied teleconnection patterns and solar energy potential on the long run. However, monthly analysis suggests significant correlation values between all the teleconnection patterns studied and solar energy production within all the climatic regions of the country. Therefore, it is important to consider the role of teleconnection pattern in energy planning and forecasting within the region.

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Effect of Bio-activator Addition and Stirring on Biogas Production from Rice Husks and Cow Dung

E3S Web of Conferences ◽

10.1051/e3sconf/20187307015 ◽

2018 ◽

Vol 73 ◽

pp. 07015

Author(s):

Lando Asiyanthi Tabran ◽

Arifin Abdul Nasser ◽

Nurhayati

Keyword(s):

Rice Husk ◽

Alternative Energy ◽

Biogas Production ◽

Milling Process ◽

Cow Dung ◽

Rice Husks ◽

Energy Potential ◽

Alternative Source ◽

Rate Of Increase ◽

Rice Milling

Indonesia as the world’s third-largest paddy producer generates abundant agricultural wastes. Approximately, 20% of those wastes obtained in the rice milling process are rice husks that have not been fully utilized. Rice husks contain cellulose, hemicellulose, and lignin. Therefore, it can be used as an alternative source of energy. In addition, an increase in the cattle population has increased the waste produced. Disposal of livestock manure, that has not been handled properly, has caused environmental pollution. The abundance of cow dung is an energy potential which is very beneficial for the community. Therefore, rice husk, cow dung, and bio-activator EM-4 were used as the main material in this study. The objectives of this study were to analyze the volume of biogas produced from (1) each composition of rice husk and cow dung, (2) addition of bio-activator EM-4, and (3) the amount of stirring in the digester. The ratio of rice husk and cow dung waste is 70%: 30% with a solid and water ratio of 10%: 90% and 20%:80%. The addition of EM-4 and stirring frequency is made with various composition aimed to accelerate the rate of increase in biogas, which can be used as alternative energy in society.

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