07-08-2012, 08:28 PM
i am sukumaran.. i need a ppt on green electronics
07-08-2012, 08:28 PM
i am sukumaran.. i need a ppt on green electronics
07-08-2012, 09:28 PM
please send the report. i am waited for your file.
08-08-2012, 10:14 AM
to get information about the topic " green electronics " full report ppt and related topic refer the link bellow
https://seminarproject.net/Thread-green-electronics https://seminarproject.net/Thread-green-...ics--28191
16-05-2013, 12:46 PM
GREEN ELECTRONICS GREEN ELECTRONICS.pptx (Size: 143.23 KB / Downloads: 42) BASIC AIM Green Electronics focuses on elimination of harmful chemicals, elements and components, recycling of electronic products at end of life. INTRODUCTION Electronics has made life easier for us. Certain materials in the electronic goods and products are toxic and harmful to the nature and the humans especially. Green Electronics focuses on the elimination of these harmful and toxic chemicals and elements from the products and, recycling the electronic items at the end of their life. Among the harmful chemicals are – Lead, Cadmium, Mercury, Polybrominated Diphenyls Ethers (PBDE). Many Parliaments of the different countries has passed the legislation to restrict the use of Lead and other harmful materials for the manufacture of electronic products. SUBSTITUTE FOR LEAD? 90% of all Electronic goods and products are made up of LEAD. Efforts are being made to find feasible and cost-effective ways for producing lead-free products . Many of these electronic components are highly toxic. Toxic materials and emissions contaminate the air and water resources. Semiconductors are the basis of all the electronic components and lead is the glue that binds all the semiconductor devices to make them work efficiently. Lead alloy solders help to transfer data from your computer. Earlier, lead was even used in paints, ceramic glazes and plumbing solders. But now its been discarded due to its poisoning effects. FACT : One Billion Pounds of lead are contained in obsolete computers in the US alone. IMPORTANT CONCLUSION :This means we have to recycle computers as fast as we make them and too efficiency. So at the end of this session it can be inferred that tough Lead is an important element for the electronic industry, but its replacement is quite difficult and a tedious task for researchers and engineers. Why LEAD is used in Electronic Components? Points to why LEAD is used in Electronic Components and Devices : To Meet Performance Requirement in a cost efficient manner. Lead can be easily Remoulded and Refined. Lead has Highest Recycling Rate of all the industrial metals in the world. Natural Properties : Low Melting Point High Strength Ductility Fatigue Resistance High Thermal Cycling Joint Integrity Corrosion Resistant Malleability Long Life Lead is essential to the production of many highly technical products, from foetal monitors to fibre optics. It plays a vital role in space exploration, energy conservation and telecommunications. INCINERATION Incineration basically entails to destroying the e-waste including computers and other electronic devices and components by burning. Incineration is particularly dangerous because of the variety of different substances found together in electro scrap. The burning of these components results into high concentrations of metals, including heavy metals, in the slag, fly ash, flue gas and filter cake. 90% of cadmium results into fly ash and 70% of mercury results into filter cake. Some of the electro scrap can also be sent to cement kilns for use as an alternative to fuel. |
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