Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201702
Sanjay D. Nikhade, S. Kongre, S. Thakre, S. Khandare
This paper presents a combined experimental and Computational Fluid Dynamics (CFD) simulation of Micro wind Turbine with 2.28 meters rotor Diameter is performed using the FLUENT 16.2 WORKBENCH. A Micro Horizontal Axis Three Blade Wind Turbine was designed, developed and tested for power performance on new airfoil AFN2016 Designed. The three blades were fabricated from glass fiber with a rotor swept area of 3.14 sq.m for the 1-meter length of the blade and angle of attack experimentally determined to be 5o.The blade is designed for tip speed ratio (TSR) of 7. The power out measured for wind speed from 3.0m/s to 9.0 m/s. The comparison of the CFD and experimental results on the relationship between the power obtained and the wind speed of the wind turbine at the wind from 3-9 m/s. It can be clearly seen that the experimental data match quite well again with the numerical analysis and they both demonstrated that the power of wind turbine increasing with wind speed increases.
{"title":"Comparison of Computational Fluid Dynamics and Experimental Power Output of a Micro Horizontal-Axis Wind Turbine","authors":"Sanjay D. Nikhade, S. Kongre, S. Thakre, S. Khandare","doi":"10.21013/JTE.ICSESD201702","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201702","url":null,"abstract":"This paper presents a combined experimental and Computational Fluid Dynamics (CFD) simulation of Micro wind Turbine with 2.28 meters rotor Diameter is performed using the FLUENT 16.2 WORKBENCH. A Micro Horizontal Axis Three Blade Wind Turbine was designed, developed and tested for power performance on new airfoil AFN2016 Designed. The three blades were fabricated from glass fiber with a rotor swept area of 3.14 sq.m for the 1-meter length of the blade and angle of attack experimentally determined to be 5o.The blade is designed for tip speed ratio (TSR) of 7. The power out measured for wind speed from 3.0m/s to 9.0 m/s. The comparison of the CFD and experimental results on the relationship between the power obtained and the wind speed of the wind turbine at the wind from 3-9 m/s. It can be clearly seen that the experimental data match quite well again with the numerical analysis and they both demonstrated that the power of wind turbine increasing with wind speed increases.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130197838","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201734
Irena Lysoňková, J. Novotný, J. Cais, Š. Michna
In this article is described the creation nanocomposite coating. It is PTFE coating with the addition of particles based on titanium dioxide on the size „nano“. Working with nanoparticles is demanding not only of safety, preparing particles of a size „nano“ and their subsequent uniform deployment in coating (partiles of this size tend to influence the electrostatic forces of aggregation). In the first part of the paper it is thus described a suitable nanoparticles percentages concentration relative to the total content solution. Further described herein is a coating technology, Further disclosed herein is coating technology since, without scattering particles during coating are prone to stick to the bottom of the coating vessel. To evaluate the appropriate distribution of particles of mountings was used a scanning electron microscope and EDS analysis.
{"title":"Extended of Durability Molds for Production Tires with New Types of Coatings","authors":"Irena Lysoňková, J. Novotný, J. Cais, Š. Michna","doi":"10.21013/JTE.ICSESD201734","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201734","url":null,"abstract":"In this article is described the creation nanocomposite coating. It is PTFE coating with the addition of particles based on titanium dioxide on the size „nano“. Working with nanoparticles is demanding not only of safety, preparing particles of a size „nano“ and their subsequent uniform deployment in coating (partiles of this size tend to influence the electrostatic forces of aggregation). In the first part of the paper it is thus described a suitable nanoparticles percentages concentration relative to the total content solution. Further described herein is a coating technology, Further disclosed herein is coating technology since, without scattering particles during coating are prone to stick to the bottom of the coating vessel. To evaluate the appropriate distribution of particles of mountings was used a scanning electron microscope and EDS analysis.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122876315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201703
Anagha Pathak, Kiran Deshpande, S. Jadkar
There is a huge potential to deploy solar thermal energy in process heat applications in industrial sectors. Around 50 % of industrial heat demand is less than 250 °C which can be addressed through solar energy. The heat energy requirement of industries like automobile, auto ancillary, metal processing, food and beverages, textile, chemical, pharmaceuticals, paper and pulp, hospitality, and educational institutes etc. can be partially met with solar hybridization based solutions. The automobile industry is one of the large consumers of fossil fuel energy in the world. The automobile industry is major economic growth driver of India and has its 60 % fuel dependence on electricity and remaining on oil based products. With abundant area available on roof top, and need for medium temperature operation makes this sector most suitable for substitution of fossil fuel with renewable solar energy. Auto sector has requirement of heat in the temperature range of 80-140 oC or steam up to 2 bar pressure for various processes like component washing, degreasing, drying, boiler feed water preheating, LPG vaporization and cooling. This paper discusses use of solar energy through seamless integration with existing heat source for a few processes involved in automobile industries. Integration of the concentrated solar thermal technology (CST) with the existing heating system is discussed with a case study for commonly used processes in auto industry such as component washing, degreasing and phosphating. The present study is undertaken in a leading automobile plant in India. Component cleaning, degreasing and phosphating are important processes which are carried out in multiple water tanks of varying temperatures. Temperatures of tanks are maintained by electrical heaters which consumes substantial amount of electricity. Non-imaging solar collectors, also known as compound parabolic concentrators (CPC) are used for generation of hot water at required process temperature. The CPC are non-tracking collectors which concentrate diffuse and beam radiation to generate hot water at required temperature. The solar heat generation plant consists of CPC collectors, circulation pump and water storage tank with controls. The heat gained by solar collectors is transferred through the storage tank to the process. An electric heater is switched on automatically when the desired temperature cannot be reached during lower radiation level or during non-sunny hours/days. This solar heating system is designed with CPC collectors that generate process heating water as high as 90OC. It also seamlessly integrates with the existing system without compromising on its reliability, while reducing electricity consumption drastically. The system is commissioned in April, 2013 and since then it has saved ~ 1,75,000 units of electricity/year and in turn 164 MT of emission of CO2 annually.
{"title":"Application of Solar Thermal Energy for Medium Temperature Heating in Automobile Industry","authors":"Anagha Pathak, Kiran Deshpande, S. Jadkar","doi":"10.21013/JTE.ICSESD201703","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201703","url":null,"abstract":"There is a huge potential to deploy solar thermal energy in process heat applications in industrial sectors. Around 50 % of industrial heat demand is less than 250 °C which can be addressed through solar energy. The heat energy requirement of industries like automobile, auto ancillary, metal processing, food and beverages, textile, chemical, pharmaceuticals, paper and pulp, hospitality, and educational institutes etc. can be partially met with solar hybridization based solutions. The automobile industry is one of the large consumers of fossil fuel energy in the world. The automobile industry is major economic growth driver of India and has its 60 % fuel dependence on electricity and remaining on oil based products. With abundant area available on roof top, and need for medium temperature operation makes this sector most suitable for substitution of fossil fuel with renewable solar energy. Auto sector has requirement of heat in the temperature range of 80-140 oC or steam up to 2 bar pressure for various processes like component washing, degreasing, drying, boiler feed water preheating, LPG vaporization and cooling. This paper discusses use of solar energy through seamless integration with existing heat source for a few processes involved in automobile industries. Integration of the concentrated solar thermal technology (CST) with the existing heating system is discussed with a case study for commonly used processes in auto industry such as component washing, degreasing and phosphating. The present study is undertaken in a leading automobile plant in India. Component cleaning, degreasing and phosphating are important processes which are carried out in multiple water tanks of varying temperatures. Temperatures of tanks are maintained by electrical heaters which consumes substantial amount of electricity. Non-imaging solar collectors, also known as compound parabolic concentrators (CPC) are used for generation of hot water at required process temperature. The CPC are non-tracking collectors which concentrate diffuse and beam radiation to generate hot water at required temperature. The solar heat generation plant consists of CPC collectors, circulation pump and water storage tank with controls. The heat gained by solar collectors is transferred through the storage tank to the process. An electric heater is switched on automatically when the desired temperature cannot be reached during lower radiation level or during non-sunny hours/days. This solar heating system is designed with CPC collectors that generate process heating water as high as 90OC. It also seamlessly integrates with the existing system without compromising on its reliability, while reducing electricity consumption drastically. The system is commissioned in April, 2013 and since then it has saved ~ 1,75,000 units of electricity/year and in turn 164 MT of emission of CO2 annually.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/jte.ICSESD201729
Anil B. Onkar, G. Dhomane, R. Moharil
Engineering based on basic principle of combustion process ,associated thermodynamics,& basic engineering principles involved in optimization of heat rate and in-house auxiliary consumption as energy input (i.e. coal consumption & in-house auxiliary consumption).Strong theme behind this paper is actual implementation of academic knowledge with practical working experience in thermal power plant .whole paper is associated with reduction of coal, electrical energy input spent on in-house auxiliaries which ultimately reduces greenhouse emission & helps to maintain environment by upgrading knowledge & working experience of Engineer working with TPP.
{"title":"Energy Environment Interaction Analysis in Thermal Power Plant: A Case Study of TPP with Energy Audit Approach in Indian Scenario","authors":"Anil B. Onkar, G. Dhomane, R. Moharil","doi":"10.21013/jte.ICSESD201729","DOIUrl":"https://doi.org/10.21013/jte.ICSESD201729","url":null,"abstract":"Engineering based on basic principle of combustion process ,associated thermodynamics,& basic engineering principles involved in optimization of heat rate and in-house auxiliary consumption as energy input (i.e. coal consumption & in-house auxiliary consumption).Strong theme behind this paper is actual implementation of academic knowledge with practical working experience in thermal power plant .whole paper is associated with reduction of coal, electrical energy input spent on in-house auxiliaries which ultimately reduces greenhouse emission & helps to maintain environment by upgrading knowledge & working experience of Engineer working with TPP.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115488992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201728
S. Deshmukh, Sagar Charthal
Wind energy is the kinetic energy associated with movement of large masses of air. These motions result from uneven heating of atmosphere by sun creating temperature, density, pressure differences. It is an indirect form of solar energy The device used to convert kinetic energy of wind into electrical power is called a wind turbine. Vertical Axis wind power generators, represent a very promising future for wind power generation. In present study an attempt is made to utilize at low velocity wind below 4m/s for useful power generation using magnetic levitation for vertical axis wind turbine (VAWT) termed as Maglev turbine. A single large Maglev turbine can give output more than conventional horizontal axis wind turbine (HAWT). The rotor that is designed to harness enough air to rotate the shaft at low and high wind speeds while keeping the centre of mass closer to the base of yielding stability due to Maglev effect. The efficiency of turbine is increased by replacing the conventional bearings by magnets in repulsion; the magnetic levitation helps the turbine to spin at much faster rate as it eliminates the stresses on the shaft of turbine. The major components are placed at the ground level which ensures the safety of turbine.
{"title":"Design and Development of Vertical Axis Wind Turbine","authors":"S. Deshmukh, Sagar Charthal","doi":"10.21013/JTE.ICSESD201728","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201728","url":null,"abstract":"Wind energy is the kinetic energy associated with movement of large masses of air. These motions result from uneven heating of atmosphere by sun creating temperature, density, pressure differences. It is an indirect form of solar energy The device used to convert kinetic energy of wind into electrical power is called a wind turbine. Vertical Axis wind power generators, represent a very promising future for wind power generation. In present study an attempt is made to utilize at low velocity wind below 4m/s for useful power generation using magnetic levitation for vertical axis wind turbine (VAWT) termed as Maglev turbine. A single large Maglev turbine can give output more than conventional horizontal axis wind turbine (HAWT). The rotor that is designed to harness enough air to rotate the shaft at low and high wind speeds while keeping the centre of mass closer to the base of yielding stability due to Maglev effect. The efficiency of turbine is increased by replacing the conventional bearings by magnets in repulsion; the magnetic levitation helps the turbine to spin at much faster rate as it eliminates the stresses on the shaft of turbine. The major components are placed at the ground level which ensures the safety of turbine.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126104598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201715
Ram Vighe
Reinforced concrete bridges may have various systems: Beam (with simply supported or continuous beams), Frame, Arch, or combined of it.. Beam reinforced concrete bridges are the most common type, Spans with plate structure are generally used to cover gaps of 6–18 m. Ribbed spans with main beams supporting the plate of .The bridge floor are used to cover gaps of more than 12m. For gaps of more than 40 m, beam spans frequently have box shaped cross sections. Arch systems are most appropriate for bridges on stable soil. The spans of beam-type reinforced concrete bridges are up to 200 m; those of archer in forced concrete bridges, up to 300 m. The main advantages of reinforced concrete bridges are durability and relatively low maintenance cost. Precast reinforced-concrete bridges, using finished plant-Manufactured components, are the type primarily built in the USSR. Methods of suspension assembly of spans and delivery of precast components to local areas by ships are extremely efficient in the construction of large reinforced-concrete bridges.
{"title":"A Unique Design of R.C.C. Bridge on Godavari River at Sironcha Dist. Gadchiroli -India","authors":"Ram Vighe","doi":"10.21013/JTE.ICSESD201715","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201715","url":null,"abstract":"Reinforced concrete bridges may have various systems: Beam (with simply supported or continuous beams), Frame, Arch, or combined of it.. Beam reinforced concrete bridges are the most common type, Spans with plate structure are generally used to cover gaps of 6–18 m. Ribbed spans with main beams supporting the plate of .The bridge floor are used to cover gaps of more than 12m. For gaps of more than 40 m, beam spans frequently have box shaped cross sections. Arch systems are most appropriate for bridges on stable soil. The spans of beam-type reinforced concrete bridges are up to 200 m; those of archer in forced concrete bridges, up to 300 m. The main advantages of reinforced concrete bridges are durability and relatively low maintenance cost. Precast reinforced-concrete bridges, using finished plant-Manufactured components, are the type primarily built in the USSR. Methods of suspension assembly of spans and delivery of precast components to local areas by ships are extremely efficient in the construction of large reinforced-concrete bridges.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130101660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/jte.ICSESD201730
Kuśmierczak Sylvia, Naprstkova Natasa
Aluminum alloys are frequently subjected to machining process and for this process is important their machinability, which depends on many factors. The Faculty of Production Technology and Management is often asked by companies with a request to solve a specific technical tasks. One of these tasks was the analysis of one specific aluminum alloy bath with worsened machinability. The rods from this alloy exhibited against assumption significantly worse chips during machining. That meant, of course, bad situation in area of machining tools. At the faculty were done analysis that could contribute to identifying the cause of the worsened machinability.
{"title":"Selected Al Alloy and Analyses of its Decrease Machinability","authors":"Kuśmierczak Sylvia, Naprstkova Natasa","doi":"10.21013/jte.ICSESD201730","DOIUrl":"https://doi.org/10.21013/jte.ICSESD201730","url":null,"abstract":"Aluminum alloys are frequently subjected to machining process and for this process is important their machinability, which depends on many factors. The Faculty of Production Technology and Management is often asked by companies with a request to solve a specific technical tasks. One of these tasks was the analysis of one specific aluminum alloy bath with worsened machinability. The rods from this alloy exhibited against assumption significantly worse chips during machining. That meant, of course, bad situation in area of machining tools. At the faculty were done analysis that could contribute to identifying the cause of the worsened machinability.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123407986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201735
Hemant Nandanpawar
Transport sector is one of the largest contributors of energy related greenhouse gas (GHG) emissions globally and is expected to grow 50 percent by 2050. Controlling GHG emission growth of transport sector is necessary in view of limiting the global temperature increase to below 2 degrees Celsius, agreed under Paris Agreement, to avoid extreme Climate Change effects. Further analysis reflects that Electric Vehicles (EV) have great role to play in limiting transport sector emissions. In view of various environmental, climate change and human health related benefits, electric vehicles (EV) is witnessing an increasing trend across the globe, specifically in the developed nations. However, the economics of electric vehicles as well as the physical issues such as charging infrastructure, dependence on grid connected power etc. put a constraint on the fast growth of such vehicles in both, developing and developed economies. Although the Asian developing economies typically have highest growth rate in terms of vehicles usage but due to economic or physical challenges they are unable to deploy the electric vehicles at a swift pace. The principle advantage of battery based electric vehicles is that they are zero-emission at point-of-use. It provides local environmental benefits including cleaner air and reduced noise in urban areas. Overall, EV contributes for the sustainable development of the transport sector and many developed countries have adopted such vehicles on a large scale. Global EV sales were 462,000 during 2015 and it is estimated that EVs will constitute 35% (41 million) of new car sales by 2040. According to the IEA estimates, the US (39%), Japan (16%) and China (12%) are currently the prominent EV stock holding markets globally. This paper includes discussion on various socio economic and environmental benefits of the electric vehicles along with the challenges of its promotion in the developing economies. Further, the paper will also cover the various models for socializing electric vehicles and better adoption as well as policy and other enablers that are crucial for its promotion.
{"title":"Electric Vehicles for Low Carbon Sustainable Development of Transport sector of Developing Asia","authors":"Hemant Nandanpawar","doi":"10.21013/JTE.ICSESD201735","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201735","url":null,"abstract":"Transport sector is one of the largest contributors of energy related greenhouse gas (GHG) emissions globally and is expected to grow 50 percent by 2050. Controlling GHG emission growth of transport sector is necessary in view of limiting the global temperature increase to below 2 degrees Celsius, agreed under Paris Agreement, to avoid extreme Climate Change effects. Further analysis reflects that Electric Vehicles (EV) have great role to play in limiting transport sector emissions. In view of various environmental, climate change and human health related benefits, electric vehicles (EV) is witnessing an increasing trend across the globe, specifically in the developed nations. However, the economics of electric vehicles as well as the physical issues such as charging infrastructure, dependence on grid connected power etc. put a constraint on the fast growth of such vehicles in both, developing and developed economies. Although the Asian developing economies typically have highest growth rate in terms of vehicles usage but due to economic or physical challenges they are unable to deploy the electric vehicles at a swift pace. The principle advantage of battery based electric vehicles is that they are zero-emission at point-of-use. It provides local environmental benefits including cleaner air and reduced noise in urban areas. Overall, EV contributes for the sustainable development of the transport sector and many developed countries have adopted such vehicles on a large scale. Global EV sales were 462,000 during 2015 and it is estimated that EVs will constitute 35% (41 million) of new car sales by 2040. According to the IEA estimates, the US (39%), Japan (16%) and China (12%) are currently the prominent EV stock holding markets globally. This paper includes discussion on various socio economic and environmental benefits of the electric vehicles along with the challenges of its promotion in the developing economies. Further, the paper will also cover the various models for socializing electric vehicles and better adoption as well as policy and other enablers that are crucial for its promotion.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124057254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/JTE.ICSESD201709
J. Saturwar, D. Chaudhari
With the growth in digital world, it is becoming more important to find a method to protect the security of digital media. An image watermarking model based on visual secret sharing (VSS) is proposed for protection of ownership. In the embedding phase, the watermark is first divided by VSS into two parts, a hiding watermark and a secret watermark. Then only the hiding watermark is embedded into the original image and the secret watermark is reserved for watermark extracting by the owner. In the extracting phase, the hiding watermark is extracted from the watermarked image first and then directly superimposed on the secret watermark to recover the watermark information. Digital watermarking has been proposed as a possible brick of such protection systems. However, application of watermarking for multimedia content protection in realistic scenarios poses several security issues. A digital watermarking technique is used to generate meaningful shares. The secret image shares are watermarked with different cover images and are transmitted. At the receiving side, the cover images are extracted from the shares and stacked one by one which reveals the secret image progressively. Digital watermarking using visual cryptography provides improved security for encrypting secret images.
{"title":"Performance Evaluation of watermarking Schemes to Decide Meaningful Number of Shares","authors":"J. Saturwar, D. Chaudhari","doi":"10.21013/JTE.ICSESD201709","DOIUrl":"https://doi.org/10.21013/JTE.ICSESD201709","url":null,"abstract":"With the growth in digital world, it is becoming more important to find a method to protect the security of digital media. An image watermarking model based on visual secret sharing (VSS) is proposed for protection of ownership. In the embedding phase, the watermark is first divided by VSS into two parts, a hiding watermark and a secret watermark. Then only the hiding watermark is embedded into the original image and the secret watermark is reserved for watermark extracting by the owner. In the extracting phase, the hiding watermark is extracted from the watermarked image first and then directly superimposed on the secret watermark to recover the watermark information. Digital watermarking has been proposed as a possible brick of such protection systems. However, application of watermarking for multimedia content protection in realistic scenarios poses several security issues. A digital watermarking technique is used to generate meaningful shares. The secret image shares are watermarked with different cover images and are transmitted. At the receiving side, the cover images are extracted from the shares and stacked one by one which reveals the secret image progressively. Digital watermarking using visual cryptography provides improved security for encrypting secret images.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125953227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-07-10DOI: 10.21013/jte.ICSESD201722
Satish Bahale, A. Shende
Tapping operation which refers to production of internal threads forms an integral part of any machine shop and it is intended to provide semi permanent fastening to the components of product so as to lend themselves for repairs and replacements. Though various methods of internal threading are available such as internal threading by milling, grinding or forming but internal threading by metal cutting which employs a tapping tool is indeed the mostly used for products where accuracy forms the base of evaluation. Last few decades have seen the growth of automobile industries and has resulted in development of its allied operations of which tapping is one of the crucial operation performed. The conventional tapping operation which surely involves rotating the tool and feeding past the pre drilled hole to create the contours called as internal threads and this is followed by withdrawal of tapping tool by reversing it with aid of rotational energy. The present paper attempts to design and analyze a tapping tool which will have no requirement of reversing of tool at the end of cutting operation which is essentially done by changing the design of conventional solid tap. The solid tapping tool is divided into two parts along the longitudinal axis and a mechanism is prompted to give the two parts actuation which would shrink at the end of cutting operation to be dragged out of hole without damaging the machined surface and providing the diametrical flexibility to engulf other diameters to be machined. This tapping tool with diametrical flexibility is designed in CAD tool named as CATIA V5 and efficiently analyzed by using FEA technique which is the working phenomenon for ANSYS.
{"title":"Computer Aided Design and Analysis of Tapping Tool with Diametrical flexibility","authors":"Satish Bahale, A. Shende","doi":"10.21013/jte.ICSESD201722","DOIUrl":"https://doi.org/10.21013/jte.ICSESD201722","url":null,"abstract":"Tapping operation which refers to production of internal threads forms an integral part of any machine shop and it is intended to provide semi permanent fastening to the components of product so as to lend themselves for repairs and replacements. Though various methods of internal threading are available such as internal threading by milling, grinding or forming but internal threading by metal cutting which employs a tapping tool is indeed the mostly used for products where accuracy forms the base of evaluation. Last few decades have seen the growth of automobile industries and has resulted in development of its allied operations of which tapping is one of the crucial operation performed. The conventional tapping operation which surely involves rotating the tool and feeding past the pre drilled hole to create the contours called as internal threads and this is followed by withdrawal of tapping tool by reversing it with aid of rotational energy. The present paper attempts to design and analyze a tapping tool which will have no requirement of reversing of tool at the end of cutting operation which is essentially done by changing the design of conventional solid tap. The solid tapping tool is divided into two parts along the longitudinal axis and a mechanism is prompted to give the two parts actuation which would shrink at the end of cutting operation to be dragged out of hole without damaging the machined surface and providing the diametrical flexibility to engulf other diameters to be machined. This tapping tool with diametrical flexibility is designed in CAD tool named as CATIA V5 and efficiently analyzed by using FEA technique which is the working phenomenon for ANSYS.","PeriodicalId":269688,"journal":{"name":"IRA-International Journal of Technology & Engineering","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133740035","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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