Green computing (2)
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Green computing (2)



GREEN COMPUTING is a doc which is made to make some awareness to this world. Even technology can be harmful when it gets older.

GREEN COMPUTING is a doc which is made to make some awareness to this world. Even technology can be harmful when it gets older.




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Green computing (2) Green computing (2) Document Transcript

  • GREEN COMPUTING References [1] DIVYA S, "GREEN COMPUTING," "technogreen" 2013. Green computing or green IT, refers to environmentally sustainable computing or IT. In the article Harnessing Green IT: Principles and Practices, San Murugesan defines the field of green computing as "the study and practice of designing, manufacturing, using, and disposing of computers, servers, and associated subsystems—such as monitors, printers, storage devices, and networking and communications systems — efficiently and effectively with minimal or no impact on the environment. The goals of green computing are similar to green chemistry; reduce the use of hazardous materials, maximize energy efficiency during the product's lifetime, and promote the recyclability or biodegradability of defunct products and factory waste. Research continues into key areas such as making the use of computers as energy-efficient as possible, and designing algorithms and systems for efficiency-related computer technologies. The term "technology" refers to the application of knowledge for practical purposes. The field of "green technology" encompasses a continuously evolving group of methods and materials, from techniques for generating energy to non-toxic cleaning products. The present expectation is that this field will bring innovation and changes in daily life of similar magnitude to the "information technology" explosion over the last two decades. In these early stages, it is impossible to predict what "green technology" may eventually encompass. The goals that inform developments in this rapidly growing field include: Sustainability - meeting the needs of
  • society in ways that can continue indefinitely into the future without damaging or depleting natural resources. In short, meeting present needs without compromising the ability of future generations to meet their own needs. "Cradle to cradle" design - ending the "cradle to grave" cycle of manufactured products, by creating products that can be fully reclaimed or re-used. WHAT IS COMPUTING? GREEN • Green computing or green IT, refers to environmentally sustainable computing or IT. • It is "the study and practice of Designing, Manufacturing, Using, and Disposing of computers, servers, and associated subsystems efficiently and effectively with minimal or no impact on the environment. WHY GO FOR COMPUTING? GREEN • Today, the main problem of the world is Global warming. • The atmosphere is becoming hot & is causing many problems to living organisms. • Computers also play a major role in polluting the world. How Computing Environment Harm • Increase in power, cooling and space for data centre. • 2007-$4.5 billion of electricity • 2011-$7.4 billion of electricity(25 power plants) • 2011-Double CO2 output ( 62 million metric tons) ORGIN: • In 1992, the U.S. Environmental Protection Agency launched Energy Star, a voluntary labelling program which is designed to promote and recognize energyefficiency in monitors, climate control equipment, and other technologies. – Saved $14 billion in energy costs in 2006 alone. – Widespread adoption of sleep mode
  • • EPEAT is focused on promoting energy efficient products. ROAD TO COMPUTING: GREEN • Green Use • Green Disposal • Green Design • Green Manufacturing APPROACHES TO GREEN COMPUTING: DISPLAY: • LCD displays: use a CCF bulb • LED displays: use an array of LEDs • LCD monitors uses 3 times less when active, and 10 times less energy when in sleep mode. • LCDs are up to 66% more energy efficient. • LCDs are also smaller in size and weight. • 21" CRT typically uses more than 120W. IT EQUIPMENT RECYCLING: • If you can extend the working life of your IT products, you reduce the environmental consequences of mining, manufacture, packaging, shipping and disposal. • Many organizations, including some manufacturers themselves, are willing to take equipment back and recycle the components into new products. • m Remote Conferencing & Telecommuting Strategies: Given recent jumps in fuel costs and greater awareness of harm caused by greenhouse gas emissions, many companies wish to reduce travel to cut costs and decrease negative impact on the environment. The initiatives in this study consist of the following: • Remote Conferencing & Collaboration. • Video-conferencing and teleconferencing.
  • INDUSTRIAL IMPLEMENTATION: • Their “Plant a tree for me” project can offset a customer’s carbon emissions for only three dollars. • Blackle(74~59 wt)(saves 750mw) • Fit-PC(compact, quiet and green) CAUSES FOR GREEN IT: • Use lot of Electricity • Zonbu Computer • Creates lots of toxic waste • Sunray thin client • Impact of Electricity to the Environment • Impact of Toxic waste to the Environment ENERGY USAGE PROFILE (EUP): • CPU uses 120 Watts • CRT uses 150 Watts – 8 hours of usage, 5 days a week = 562 kWatts STEPS BY DELL: • Their free world-wide product recycling program allows user to properly dispose their product safely. • if the computer is left on all the time without proper power saver modes, this can lead to 1,600 KWatts • Energy use comes from
  • – electrical current to run the CPU, motherboard, memory consumer electronics device, including cables. When disposed off improperly, these materials contain elements that work their way into our water table. The elements are also rendered non-reusable as they are blended in with other waste and lost. – running the fan and spinning the disk(s) – monitor (CRTs consume more power than any other computer component) – printers TOXICITY: • Metals like Lead, Mercury, Cadmium, Hexavalent Chromium, Plastics, tin, copper, carbon and aluminum • Iron, Silicon, Lithium, Zinc, Gold, Sulphur E-WASTE: • Electronic waste (eWaste) is one of the most controllable pieces of the waste stream. Recycling eWaste is easy; recycling eWaste normally and ethically takes a bit more work. • What is electronic waste? Any cell phone, computer, monitor, printer, CD, battery, television or other business or APPROACHES TO GREEN COMPUTING: • Algorithmic Efficiency • Power Management • Video Card • Telecommuting REDUCING ENERGY CONSUMPTION: • Turn off the computer when not in use, even if just for an hour • Turn off the monitor when not in use (as opposed to running a screen saver) • Use power saver mode
  • – in power saver mode, the top item is not necessary, but screen savers use as much electricity as any normal processing, and the screen saver is not necessary on a flat panel display • Use motherboard video output - typically low 3D performance and low power. • Select a CPU based on low idle power, average wastage or performance per watt. REFURBISH: • • Use hardware/software with the Energy Star label – Energy Star is a “seal of approval” by the Energy Star organization of the government (the EPA) • Don’t print unless necessary and you are ready • Use LCDs instead of CRTs as they are more power efficient. VIDEO CARD: A fast CPU may be the largest power consumer in a computer. Energy efficient display options include: • No video card - use a shared terminal, shared thin client, or desktop sharing software if display required. rather than discarding your computer when the next generation is released, just get a new CPU and memory chips – upgrade rather than replace while you will still be discarded some components, you will retain most of the computer system (e.g., monitor, the system unit housing, cables) RECYCLE: • Computer monitors (CRTs) contain an average of 4 lbs. of lead, a lot of reusable glass, chromium and mercury. All of these elements can be extracted and reused. For example, a recycler can takes the glass from old monitors, and sends them to manufacturing for use on flat screen monitors and TVs. • CDs/DVDs contain gold, glass, plastic, nickel and other elements that are completely recoverable and reusable.
  • • Batteries – everything from the batteries that power your phone, laptop, and mouse can be recycled, whether singleuse or rechargeable. • Time-Based Power over Ethernet (Poe) • Wi-Fi Scheduler • Share Port • LCD Standby GREEN WEB SURFING: • Power Saving by Hard Drives Hibernation • Smart FAN ADVANTAGES: • BEING GREEN WITH YAHOO GREENER FIREFOX SURFING Both green computing and hardware disposal focus on being green to help have less of an impact on our environment. • Recycling like NewTech disassembles and reuses parts from old computers to build new, better ones, without just dumping them in a landfill. CONCLUSION: GREEN TECHNOLOGIES: • Power Saving by Link Status • Power Saving by Cable Length • Green computing can lead to a lot of energy savings, reduction in emission of co2 & CFC’s which leads to environment protection. • It also leads to serious cost savings overtime.