scholarly journals Physical Basis of Quasi-optimal Seismoacoustic Pulse Generating for Geophysical Prospecting in Shallow Water and Transit Zones. Part 1. Theoretical foundations

2019 ◽  
pp. 747-755
Author(s):  
Danil S. Kudinov ◽  
Oleg A. Maykov ◽  
Pavel V. Balandin
Keyword(s):  
Alternative Energy ◽  
Seismic Waves ◽  
Raw Materials ◽  
Seismic Source ◽  
Water Area ◽  
Raw Material ◽  
Seismic Exploration ◽  
The Arctic ◽  
Coastal Zones ◽  
Seismic Vibrations

Despite the development of alternative energy, hydrocarbon raw materials is one of the most important energy resources in the world. The discovery of new deposits today is an urgent task. Long-term prospects for the development of seismic exploration are associated with the development of the continental shelf, in particular the Arctic. Also, a large raw material potential is expected from poorly studied territories located on the Arctic coast of the Russian Federation, reef zones of the Persian Gulf states, and in the transit and shallow waters (at a depth of up to 10 meters). The article discusses the theoretical aspects of the excitation of seismic waves in the water, addresses the problems of instrumental implementation of a new source of seismic vibrations that can work: in the water area, in tidal and coastal zones, i.e. produce continuous seismic profiling from the water area to the land. The scientific substantiation of the developed seismic source (SS) design is given

scholarly journals Physical Basis of Quasi-optimal Seismoacoustic Pulse Generating for Geophysical Prospecting in Shallow Water and Transit Zones. Part 2. The Layout of Aqueous Seismic Source and the Results of Experiments

2020 ◽  
pp. 71-78
Author(s):  
Danil S. Kudinov ◽  
Oleg A. Maykov ◽  
Pavel V. Balandin
Keyword(s):  
Seismic Source ◽  
Source Model ◽  
Water Area ◽  
Hydrodynamic Resistance ◽  
Coastal Zones ◽  
Serial Sample ◽  
Seismic Source Model ◽  
Seismic Vibrations ◽  
The Media ◽  
Scientific Substantiation

The article discusses theoretical aspects of seismic wave excitation of in the aquatic environ- ment, addresses the problems of instrumental implementation of a fundamentally new source of seismic vibrations that can work: in the water area, in tidal and coastal zones. The scientific substantiation of the developed seismic source (SS) design is given. The results of the seismic influence simulation of hydrodynamic resistance on the media, as well as the formation of the “added mass” are given. The results were obtained using the developed mathematical model of the motion of the radiating surface. Based on the experimental work, a comparative analysis of the energy efficiency of the developed seismic source model and the serial sample of the VEM-50 "Yenisei" water seismic source was made. Experimental results were obtained at the geophysical well of the test and training area

scholarly journals THE USE OF ENVIRONMENTAL WASTE IN THE ISSUE OF GREEN ECONOMY OF THE REGIONS

2021 ◽  
Author(s):  
M. Opara ◽  
Natalia Azarova
Keyword(s):  
Carbon Dioxide ◽  
Alternative Energy ◽  
Raw Materials ◽  
Human Life ◽  
Raw Material ◽  
Green Economy ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Solid Liquid ◽  
State Of The Environment

Currently, an urgent issue is the preservation of the environment, the cyclical use of waste for the production of new products, the preservation and multiplication of the planet’s natural resources. After all, the quality of life of each person directly depends on the state of the environment and the factors that affect its preservation. These factors are an integral part of the development of a green economy. This article discusses the possibility of producing alternative energy sources, such as biofuels of three generations.The first generation is solid, liquid, and gaseous biofuels. Second-generation fuel is obtained from the biomass of plant and animal material residues, or grown crops. As an example, such a type of fuel as biogas, which consists of carbon dioxide and methane, and with its further processing, namely the separation of carbon dioxide, you can get biomethane. In the same way, such fuels as biodiesel and bioethanol can be obtained from the biological mass. And the most unusual raw material for the production of third-generation fuel is biofuel from algae. Unfortunately, the development of the green economy in Russia is taking slow steps, but at present this issue is being paid more attention. The development of technologies for obtaining alternative energy sources will allow us to produce not only new types of energy, but also to preserve the environment of our priceless planet, through the use of raw materials and waste that are not in demand in everyday human life.

scholarly journals Analysis Critical Control Point (CCP) in Frozen Surimi Production in PT. Bintang Karya Laut, Kabupaten Rembang, Propinsi Jawa Tengah

2020 ◽  
Vol 8 (3) ◽  
pp. 98
Author(s):  
Nur Fais ◽  
Gunanti Mahasri
Keyword(s):  
Production Process ◽  
Raw Materials ◽  
Hazard Analysis ◽  
Control Point ◽  
Frozen Storage ◽  
Water Area ◽  
Raw Material ◽  
Primary Data ◽  
Critical Control Point ◽  
Frozen Surimi

Indonesia has vast water area (5,8 million km2) as well as abundant fisheries production (10,83 million tones in 2010). This needs to be balanced with the proper processing of diversivication, one of wich is surimi. Surimi is intermediet product in the form of minced meat wich has undergone washing, pressing, and freezing. Surimi has inherent limitations prone to degradation affected by characteristics raw material as well as errors in the production process. Hazard analysis critical control point (HACCP) management system can be applied to prevent damage due to improper production process. One of the principles of hazard analysis critical control point (HACCP) is the analysis of the critical control poin (CCP),which focuses on hazard mitigation at the critical point of a production process. The methods used in the field practice is descriptive method. Data collection method involves collecting primary data and secondary. Primary data in the form of interviews, observation, and active participation. Surimi productions process in PT. Bintang Karya Laut consists of the receipt of raw materials, washing I, weeding, washing II, the separation of meat, leaching, filtering and pressing, mixing, printing and packaging, freezing, metal detecting, packing and labeling, and storage of frozen. Frozen surimi production in PT. Bintang Karya Laut is ± 7.500 tons/year of row material 30.000 tons. Based on hazard analysis, critical control point (CCP) on the production process of frozen surimi in PT. Bintang Karya Laut are on the three stages : receipt of raw materials, metal detection, and frozen storage. Problems that become obstacles in the process of analysis critical control point (CCP) in PT. Bintang Karya Laut is the limited tools to detect danger at any point of the critical control point (CCP).

scholarly journals Alpian, Yanciluk, dan Wahyu Supriyati

2020 ◽  
Vol 13 (02) ◽  
pp. 22-31
Author(s):  
Agrienvi
Keyword(s):  
Energy Demand ◽  
Alternative Energy ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Economic Value ◽  
Forest Products ◽  
Raw Material ◽  
Wood Pellets ◽  
Industry Waste ◽  
Simple Technology

Energy demand increase follow to population growth factors, high exploration costs, rising world oil prices andthe difficulty of finding sources of oil reserves. These factors cause the governments of several countries toimmediately produce alternative energy that is renewable and environmentally friendly. Wood pellets are analternative energy source. The availability of raw materials is very easy to obtain. Raw materials for wood pelletsfrom the exploitation waste such as logging residues, branches and twigs, wood industry waste such as scraps,sawdust and bark, agricultural waste such as straw and husks. Waste that is developed into a product will produce ahigher economic value. Making pellets from wood waste is an alternative energy material for meeting people's energyneeds. The opportunity to develop wood pellets as fuel is wide open because of the vast potential of forests inIndonesia and the large amount of waste from forest products, both from timber industry waste and exploitationwaste. Equipment, raw materials and the process of making pellets in a simple manner need to be socialized to thepublic so that they can be applied especially for the utilization of potential waste that can be used as raw material formaking pellets.Keywords : wood pellets, waste, simple technology, renewable energy

scholarly journals Miscanthus plants processing in fuel, energy, chemical and microbiological industries

2019 ◽  
pp. 403-411
Author(s):  
Olga Babich ◽  
Olga Krieger ◽  
Evgeny Chupakhin ◽  
Oksana Kozlova
Keyword(s):  
Alternative Energy ◽  
Plant Biomass ◽  
Raw Materials ◽  
Hydrocarbon Fuel ◽  
Raw Material ◽  
Biomass Combustion ◽  
Alternative Energy Sources ◽  
Miscanthus Giganteus ◽  
Renewable Raw Material ◽  
Physical And Chemical

The increasing shortage of fossil hydrocarbon fuel dictates the need to search for and develop alternative energy sources, including plant biomass. This paper is devoted to the study of the Miscanthus plants biomass potential and the analysis of technologies of its processing into products targeted at bioenergy, chemistry, and microbiology. Miscanthus is a promising renewable raw material to replace wood raw materials for the production of chemical, fuel, energy, and microbiological industries. Miscanthus is characterised by highly productive (up to 40 tons per one hectare of dry matter) C4-photosynthesis. Dry Miscanthus contains 47.1–49.7% carbon, 5.38–5.92% hydrogen, and 41.4–44.6% oxygen. The mineral composition includes K, Cl, N and S, which influence the processes occurring during biomass combustion. The total amount of extractives per dry substance lies in the range of 0.3–2.2 % for different extraction reagents. Miscanthus has optimal properties as an energy source. Miscanthus × giganteus pellets showed the energy value of about 29 kJ/g. For the bioconversion of plants into bioethanol, it is advisable to carry out simultaneous saccharification and fermentation, thus reducing the duration of process steps and energy costs. Miscanthus cellulose is of high quality and can be used for the synthesis of new products. Further research will focus on the selection of rational parameters for processing miscanthus biomass into products with improved physical and chemical characteristics: bioethanol, pellets, industrial cellulose, bacterial cellulose, carbohydrate substrate.

scholarly journals REDUCING TRANSPORTATION EXPENSES FOR COMBINED CARGO TRANSPORTATION IN WAGONS AND CONTAINERS IN THE ARCTIC REGIONS OF RUSSIA

2020 ◽  
Vol 69 (3/2020) ◽  
pp. 88-98
Author(s):  
V. V. Yushchenko ◽  
◽  
V. E. Khrapov ◽  
T. V. Turchaninova ◽  
◽  
...  
Keyword(s):  
Natural Resources ◽  
Transport System ◽  
Production Management ◽  
Raw Materials ◽  
Raw Material ◽  
The Arctic ◽  
Railroad Transport ◽  
Mineral Raw Materials ◽  
Murmansk Region ◽  
Cargo Transportation

The economy of the Murmansk region retains its raw material orientation, as it is justified by the region’s natural resources and industrial potential. Economic activity of mineral-resource enterprises and those mining ores of ferrous and non-ferrous metals is going to remain the dominant sector of the regional economy for a long time due to the geological and economic characteristics and natural and climatic features peculiar to this area. The region is endowed with various natural resources. On the Kola Peninsula there are more than sixty major deposits of various types of mineral raw materials with more than three dozen extractable resources, the most valuable of which include copper-nickel, iron, apatite-nepheline ores and ores of rare metals. Production management and transportation of raw materials require well-developed infrastructure, creating an integrated transport system, that is why it plays a strategic role in the economy of the Murmansk region. It is connected with the fact that the region is predominated by industries focused on producing and delivering considerable volumes of raw materials and metals outside the region. In these circumstances, every enterprise plans and arranges transportation of cargo by various means of transport. Railway transportation plays a significant role as it provides round-the-clock cargo transportation from senders to recipients fulfilling clients transportation requests regardless of weather conditions.Therefore, the important scientific task is analyzing the cargo base and finding solutions for improving the existing and creating new designs of wagons and containers for railroad transportation of cargo, taking into account spatial directions of cargo flows, which is the purpose of this article. The authors have proposed options for modernization of wagons and designs of composite containers that possess scientific novelty, as the current state of the railroad transport system requires modernization.It is impossible to achieve effective economic performance of an enterprise that works in the sphere of mining and processing of mineral raw materials without creating a proper transport component that requires its own development. The implementation of the given proposals will allow the enterprises to increase the volume of cargo transportation which in its turn is going to have a significant impact on socio-economic development of the region.

Improving the quality of low octane hydrocarbon fractions under conditions of catalytic processing on aluminum-silicon catalysts

2020 ◽  
pp. 66-72
Author(s):  
V.O. Yevdokymenko ◽  
◽  
N.Y. Khimach ◽  
T.V. Tkachenko ◽  
D.S. Kamensky ◽  
...  
Keyword(s):  
Alternative Energy ◽  
Alternative Fuels ◽  
Flow Reactor ◽  
Raw Materials ◽  
Thermochemical Treatment ◽  
Raw Material ◽  
Renewable Biomass ◽  
Main Challenge ◽  
Cracking Process ◽  
Catalytic Treatment

The main challenge today is to find new alternative energy sources. Reduction of oil, gas and coal production can be achieved through the rational use of biomass as a raw material for fuels and lubri-cants. Thermochemical treatment of biomass allows to obtain raw materials for a number of process-es, in particular the separation of hydrocarbon components and their catalytic treatment allows to ob-tain alternative components for motor fuels. The main advantage of using hydrocarbon fractions from biomass is that they are completely free of sulfur- or nitrogen-containing compounds that play the role of catalytic poisons. Catalytic studies were performed in a flow reactor at a charged catalyst volume of 30 cm3, a reac-tion zone temperature of 350 ± 5 °C and a pressure of 0.1 MPa. The feedstock was fed to the reaction zone using a pump at a constant rate of 1 h-1. The direction of supply of raw materials from top to bot-tom. In this work it is shown that industrial aluminosilicates are structural compounds (Cat.25, Cat.38, Cat.50, Cat.80) and show catalytic properties in the cracking process, which is reflected in the increase of octane number from 8 to 20 units. The higher their cracking activity, the more gaseous products are formed and the fractional composition changes in the direction of isomeric hydrocarbons, which is confirmed by gas chromatographic analysis. According to the amount of gas phase and the composi-tion of liquid products, it should be noted that the most active catalyst was the sample Cat.25. This effi-ciency is related to the chemical composition and methods of synthesis of the presented catalysts. The latter by their nature contain cations of aluminum (Al3+) and silicon (Si4+), which certainly affects the formation of Bronsted acid centers, which are responsible for the cracking process. In turn, catalysts of the type Cat.1 and Cat.2 with a significant content of aluminum and no catalytic effect can be charac-terized as a mechanical mixture of these basic oxides, and not an aluminosilicate matrix with a certain structure. Based on the obtained results, renewable biomass is a potential source for obtaining hydrocarbon fractions, which after catalytic treatment processes can serve as high-quality high-octane components of alternative fuels.

scholarly journals Briquette Fuel - An Option for Management of Mikania micrantha

2013 ◽  
Vol 14 (1) ◽  
pp. 109-114 ◽  
Author(s):  
Ramesh Man Singh ◽  
Mridaney Sharma Poudel
Keyword(s):  
Alternative Energy ◽  
Raw Materials ◽  
Terrestrial Ecosystem ◽  
Raw Material ◽  
Test Results ◽  
Mikania Micrantha ◽  
Long Run ◽  
Different Types ◽  
Chitwan National Park ◽  
Combustion Tests

Mikania micrantha (mile- a-minute in English) is assessed as one of the six high risks posed IAS in terrestrial ecosystem in Nepal and is as a considered second biggest threat after deforestation to biodiversity conservation. It is becoming pervasive and estimated to have covered over 20% of the Chitwan National Park. A survey was conducted jointly with NTNC, TCN and NAST to establish the estimates of available Mikania biomass raw material. After being cut, it can even regenerate by old rootstocks, runners and suckers. It does not have much use after manual removal. So, using dried biomass for briquetting to get fuel may be an option for its utilization. Different types of briquettes using biomass as well as char were made from its raw materials. Various physical and fuel characteristics of the briquette fuels and combustion tests were performed and studied as an alternative fuel. Different test results show that the use of this weed to produce briquette fuel will generate a potential source of alternative energy and will also help in conserving biodiversity in long run. Nepal Journal of Science and Technology Vol. 14, No. 1 (2013) 109-114 DOI: http://dx.doi.org/10.3126/njst.v14i1.8930

scholarly journals Analisis Produksi Biogas Berdasarkan Bahan Baku Limbah Kotoran Sapi, Serbuk Gergaji, dan Effective Microorganisme-4 (EM4)

2019 ◽  
Vol 7 (2) ◽  
pp. 297
Author(s):  
Mario Dwi Adrianto
Keyword(s):  
Alternative Energy ◽  
Organic Waste ◽  
Biogas Production ◽  
Raw Materials ◽  
Variable Temperature ◽  
Gas Pressure ◽  
Raw Material ◽  
Cow Dung ◽  
Cellulose Content ◽  
Filling Material

Biogas is an alternative energy made from organic waste. Organic waste which is often used as raw material for biogas is cow dung. Cow manure is used as raw material for biogas because the cellulose content in it is quite high and its availability is relatively large. However, if only one material is used, the optimum C / N ratio will not be achieved. If the optimum C / N ratio is achieved, the gas produced in biogas production will also increase. One way to get the optimum C / N ratio is by adding biogas filling material. In this study, variations in the composition of biogas filling materials were carried out, namely (1) cow dung, (2) cow dung and sawdust, and (3) cow dung, sawdust, and EM4. Of the three variations of this filling material, measurements of temperature, gas pressure, and pH will be carried out. The purpose of this study was to determine the effect of the composition of the biogas mixture on the variables of temperature, gas pressure, and pH. The biogas production process were divided into several stages, such as mixing filling material, inputting filling material into the digester, fermentation process, taking the data of observation, and analyzing the data. The results showed that differences in the composition of biogas raw materials affected the variable temperature and gas pressure. As for pH, the composition of the filling material does not have a significant effect.   Keywords: biogas, cow dung, sawdust, EM4

DOI: https://doi.org/10.36873/ae , Alpian, Yanciluk, dan Wahyu Supriyati

2020 ◽  
Vol 13 (02) ◽  
pp. 22-30
Author(s):  
Agrienvi
Keyword(s):  
Alternative Energy ◽  
Raw Materials ◽  
Agricultural Waste ◽  
Forest Products ◽  
Raw Material ◽  
Wood Pellets ◽  
Oil Reserves ◽  
Industry Waste ◽  
Energy Needs ◽  
Simple Technology

ABSTRACTEnergy demand increase follow to population growth factors, high exploration costs, rising world oil prices andthe difficulty of finding sources of oil reserves. These factors cause the governments of several countries to immediatelyproduce alternative energy that is renewable and environmentally friendly. Wood pellets are an alternative energysource. The availability of raw materials is very easy to obtain. Raw materials for wood pellets from the exploitationwaste such as logging residues, branches and twigs, wood industry waste such as scraps, sawdust and bark,agricultural waste such as straw and husks. Waste that is developed into a product will produce a higher economicvalue. Making pellets from wood waste is an alternative energy material for meeting people's energy needs. Theopportunity to develop wood pellets as fuel is wide open because of the vast potential of forests in Indonesia and thelarge amount of waste from forest products, both from timber industry waste and exploitation waste. Equipment, rawmaterials and the process of making pellets in a simple manner need to be socialized to the public so that they can beapplied especially for the utilization of potential waste that can be used as raw material for making pellets.Keywords : wood pellets, waste, simple technology, renewable energy

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