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Experimental investigation on effect of EGR on biofuel fueled HCCI engine using external fuel vaporizer- A Technical review | IJSTE JOURNAL VOL 2, ISS 7

Experimental investigation on effect of EGR on biofuel fueled HCCI engine using external fuel vaporizer- A Technical review

The Homogeneous charge compression ignition (HCCI) combustion is an alternative to current engine combustion systems. The research in HCCI is being carried out to use it as a method to reduce emissions and also enhance engine efficiency. HCCI has the potential to nearly eliminate NOx emissions while increasing efficiency as in diesel engine. HCCI adapts a pre mixture of gas-phase fuel and air being burned spontaneously and entirely by an auto ignition process. Homogeneous Charge Compression Ignition (HCCI) engines promises a high thermal efficiency combined with low levels of nitrogen oxides and particulate matter emissions. The purpose of this study is to summarise the effect of alternative fuel when used in the HCCI engine combustion process. Modification of single cylinder diesel engine runs on HCCI mode with diesel and biofuel. Installation of EGR system on HCCI engine. To study the effect of EGR rate on the engine exhaust parameter like nitrogen oxides (NOX), carbon oxides (CO and CO2), particulate matters (PM) and unburnt hydro carbons (UHC) by running the engine on HCCI mode with biofuel.

This Article is Research By Nejal N. PateL, Prof Shyam K.Dabh, Pawan Kishore Jha, Prof. Vivek G. Trivedi and published by IJSTE JOURNAL

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Experimental Analysis of Mechanical Properties in E-Glass Fiber Pipe | IJSTE JOURNAL VOL 2, ISS 8

Experimental Analysis of Mechanical Properties in E-Glass Fiber Pipe

Now a day’s composite material products are gently used in fiber industry and automobile applications. Because of it light weight, Low cost and high strength. There are various varieties of synthetic fibers are the properties were identified. But glass fiber is give high strength in low cost. The fibers it will be mixing resin to get good mechanical properties. In this work use E-glass fiber, Resin and hardener to make a composite fiber pipe. We fabricated a standard test specimen in each E-glass fiber (E-glass fiber, Resin + hardener). There addition of additives has to be done to fabricate composite fiber pipe. Finally Hardener is added improve it hardness separately and tested in Micro Hardness Test, Universal Testing Machine, from analysis we found that composite E-glass fiber, Resin + hardener got better Hardness.

This Article is Research By Muruganantham S, Chandramohan.V, Sankar.N and published by IJSTE JOURNAL

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Experimental Approach for Selection of Tool Steel Using Heat Treatment Process with MTTF and MTBF | IJSTE JOURNAL VOL-2 ISS-8

Experimental Approach for Selection of Tool Steel Using Heat Treatment Process with MTTF and MTBF

Tools steels are generally used in forming process of operation under definite mechanical properties of the sheet metal. At the same time failure of tools steels take place because of many number causes or insufficient material selection criteria. Under this paper we have taken the five samples as punch materials i.e. EN-31, OHNS, D-2, EN-9 and D-3 to find out the different causes of punch failures. Main objective is to study the effect on the hardness of tool steel after heat treatment processes. Also MTBF and MTTF are reliability terms based on methods and procedures for lifecycle predictions for a product. These terms providing a numeric value based on a compilation of data to quantify a failure rate and the resulting time of expected performance. The numeric value can be expressed using any measure of time, but hours is the most common unit in practice. Fracture surface displays typical ductile fracture, and the outer and inner surface of the part punched off is full of little bowings around which there are many micro cracks caused by the stretch stress under biaxial strain/stress state. This survey also helps to find out the failure mode appraisal in inner lower control arm and punch with their preventive methods.

This Article is Research By KIRAN S. PHAD, Prof. Ravindra E. Gite,Prof. Amol L. Khatode,Prof. Dipak S. Bajaj and published by IJSTE JOURNAL

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Distributed Manufacturing #IJSTE JOURNAL#

IJSTE - International Journal of Science Technology and

 Engineering

Subject: 

Distributed Manufacturing

Distributed manufacturing turns on its head the way we make and distribute products. In traditional manufacturing, raw materials are brought together, assembled and fabricated in large centralized factories into identical finished products that are then distributed to the customer. In distributed manufacturing, the raw materials and methods of fabrication are decentralized, and the final product is manufactured very close to the final customer.

In essence, the idea of distributed manufacturing is to replace as much of the material supply chain as possible with digital information. To manufacture a chair, for example, rather than sourcing wood and fabricating it into chairs in a central factory, digital plans for cutting the parts of a chair can be distributed to local manufacturing hubs using computerized cutting tools known as CNC routers. Parts can then be assembled by the consumer or by local fabrication workshops that can turn them into finished products. One company already using this model is the US furniture company AtFAB.

Current uses of distributed manufacturing rely heavily on the DIY “maker movement”, in which enthusiasts use their own local 3D printers and make products out of local materials. There are elements of open-source thinking here, in that consumers can customize products to their own needs and preferences. Instead of being centrally driven, the creative design element can be more crowdsourced; products may take on an evolutionary character as more people get involved in visualizing and producing them.

Distributed manufacturing is expected to enable a more efficient use of resources, with less wasted capacity in centralized factories. It also lowers the barriers to market entry by reducing the amount of capital required to build the first prototypes and products. Importantly, it should reduce the overall environmental impact of manufacturing: digital information is shipped over the web rather than physical products over roads or rails, or on ships; and raw materials are sourced locally, further reducing the amount of energy required for transportation.

If it becomes more widespread, distributed manufacturing will disrupt traditional labour markets and the economics of traditional manufacturing. It does pose risks: it may be more difficult to regulate and control remotely manufactured medical devices, for example, while products such as weapons may be illegal or dangerous. Not everything can be made via distributed manufacturing, and traditional manufacturing and supply chains will still have to be maintained for many of the most important and complex consumer goods.

Distributed manufacturing may encourage broader diversity in objects that are today standardized, such as smartphones and automobiles. Scale is no object: one UK company, Facit Homes, uses personalized designs and 3D printing to create customized houses to suit the consumer. Product features will evolve to serve different markets and geographies, and there will be a rapid proliferation of goods and services to regions of the world not currently well served by traditional manufacturing.

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