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Free Energy Efficiency Kit for Sempra energy customers
2012-01-30 21:45:00 http://sdge.com/energy-kit-requ-est-form This Freè? Stuff ?Tìmès . ©om feed should only be read in feed readers, on the ¥¥©Freestuff Timesemail list, or the ??FST Google Gadget.?©? Any other use is copyright infringe ? ment and should be reported.?© ©¥??
By: Free Stuff Times
Heat Pump Efficiency in Minneapolis, MN
2012-01-26 16:18:00 All the time I have people asking me about heat pumps. I usually discourage them in my region as not being cost effective (my clientele are rarely in the top 10% of earners). I believe most of the hype comes from the merchants and the government agencies who are too often swayed without really stud
VFD & Energy Saving-3: Efficiency of a VFD
2012-01-19 19:19:00 Dear all,I have a confusion related to the efficiency of a Frequency drive (ABB ACS 800).The manufacturer says that its efficiency is 98 % but the approach I am using to find the efficiency is as System Description: 6.3 KV comes from the Grid 1. Transformer (Convert 6.3 KV to 690 V and this volta
Adiabatic Efficiency of Pneumatic Compressors
2012-01-12 11:32:00 What is adiabatic efficiency of pneumatic compressors? How to measure it?
Efficiency Curve of Centrifugal Pumps for Different Specific Gravity Liquid
2012-01-11 06:49:00 For same flow conditions, is efficiency curve od centrifugal pump varies with specifica gravity? Since Centrifugal pumps are constant head machines, the Capacity-Flow curve would be same for different Specific Gravity liquids. Waht about efficiency curve. Will it be same for different liquids of di
29% Off a Sunforce 80-Watt High-Efficiency Polycrystalline Solar Panel
2012-01-09 09:00:00 List Price: $699.99Deal Price: $499.95You Save: $200.04 (29%)The Sunforce 39810 80-Watt High-Efficiency Polycrystalline Solar Panel Module provides the power you need, while helping you save money and protect the environment. This panel is ideal for homes, cabins, remote power, back-up power, and 12-Volt battery charging. This panel comes with compatible wiring, accessories and a voltage tester to help you start producing up to 80 watts of clean, free power in all weather conditions.Expires Jan 25, 2012
Combined Cycle Efficiency (or heat rate) According to Ambient Temperature
2012-01-04 06:25:00 If possible, I hope to know the reason why the efficiency(or heat rate) of Combined cycle gas turbine power plant is the highest(or lowest in the heat rate) in ISO temperature 59 F, 15℃ and why it becomes lower(or higher in the heat rate) at higher temperature. I would very much more appreciat
Free Cybersecurity, Storage Efficiency, and Exadata For Dummies Books
2011-12-29 13:33:00 dlt.com/library/whitepaper/cybe-rsecurity-for-dummies-request-f-or-book dlt.com/library/whitepaper/stor-age-efficiency-for-dummies-requ-est-for-book dlt.com/library/whitepaper/exad-ata-for-dummies-request-for-boo-k -Agency name required for all 3 Free Stuff Times . C om feed should only be reâd in feed readers, on the ©Freètuff Times ©e mail list, or the © FST Google Gadget. Any other| use| is |©opyright infringement and should be reported.©©©
By: Free Stuff Times
Scientists Create First Solar Cell With Over 100% Quantum Efficiency
2011-12-19 16:49:00 From Engadget: Researchers over at the National Renewable Energy Lab have reportedly made the first solar cell with an external quantum efficiency over 100 percent. Quantum efficiency relates to the number of electrons-per-second flowing in a solar cell circuit, divided by the number of
Efficiency and Performance of an AC Unit
2011-12-19 13:54:00 Dear All As a requirement for choosing an effient airconditioning type/ model I usually review the COP and EER along with the electrical requirement of the unit. Obviously nowadays we are dealing with inverter types, however I would like to ask you what further parameters one should note in order t
Reactive Lighting Brings Safety, Efficiency, And The WOW Factor To Your Sta
2011-12-06 20:45:00 Traditional staircase lighting fails to impress functionally. Even when lit with a fancy chandelier from an arched ceiling, which basement and attic stairs seldom deserve, the light cast may not be the safest. But the Web's famous gadget hacker from Manitoba, Canada, Alan Parekh, has developed a complete kit for safe, energy-efficient, and versatile LED stair lighting that can express your individual style as well.
Efficiency of Steam Turbine With and Without Extractions?
2011-12-04 07:23:00 I want to know the effects of extraction on efficiency of steam turbine. How much will be the difference in efficiency of steam turbine if we run the turbine with extractions and without extractions?
Recovery Efficiency of AC Recovery Machine
2011-11-16 14:50:00 Does any one know the method of how to measure the recovery efficieny of AC Recovery machine that is used to recovery and recharge refrigerant gas (R134 A) from the car ac system. Regards Vijay
Reciprocating vs Centrifugal Compressor Efficiency
2011-11-16 05:14:00 i'm looking for the comparison between reciprocating and centrifugal compressor efficiencies. The efficiency which i got from specification sheets is for reciprocating is volumetric efficiency and for centrifugal compressor is adiabatic and polytropic. I want to know about overall efficiency of bo
Free Energy Efficiency Kit for Duke Energy customers
2011-11-16 02:03:00 http://www.myenergykit.org/ -it includes: a Compact fluorescent lightbulb, Low flow showerhead, Night light, Faucet aerators, Water flow meter bag, Glow ring toy, hot water gauge card, teflon tape, and a booklet -OH, NC, and SC only ¥This Freè? Stuff ?Tìmès . ©om feed should only be read in feed readers, on the ¥¥©Freestuff Timesemail list, or ...
By: Free Stuff Times
Solar Efficiency Mapping for Roofs
2011-10-27 19:58:00 = Solar Efficiency Mapping for Roofs = (Image Credit: University of Gothenburg) Solar cells are being more commonly utilized in both commercial and industrial structures as a means to reduce energy costs. However, not all buildings in a site are created equal in terms of solar panel suitabil
13th Based on energy efficiency.
2011-07-01 10:41:00 19th Put the Fun in the list. But take a look at the latest technologies and ideas to develop. Want to make a dramatic statement about architecture? Children's pool, a slide and a few children. The draft pool is accessible for the entire look and try what you can do really ... Further information is good for read:7th Do you know what you want. Interview several candidates and refer to the philosophy of their building. In temperate climates, where there are never too hot... These are products based on water-based solvents or products. Think about what best meets your needs. Surfaces must be free of pollution, contamination, foreign material, biological, salt, plaster, etc.... adapt in this way, based on the pool Toronto. Adapt in this way, based on the pool Toronto. He has also created a beautiful landscape around the pool and...
The correlation between scoring margins and player offensive efficiency
2011-04-06 16:06:00 Way back on December 1, 2010 Loyola was 7-0 and Butler was coming to play the Ramblers at the Gentile Center. There was a lot of hope in Rogers Park that Loyola would shake off its status as a lower division member of the Horizon League and start challenging the big boys.Well, for 40 minutes the Ramblers did it. They traded punches with Butler until the final possessions and ended up falling 65-63. In just a 57 possession game it was quite the performance. Afterwards though there were a lot of questions about how Brad Stevens contained the Loyola offense. The bright, young coach talked about how stopping Geoff McCammon was the key to Loyola's offense and winning the basketball...
What is a Gasoline Engine Driven Generator's Average Efficiency?
2011-01-20 23:49:00 what is the average efficiency of a modern 4 cycle gasoline engine driven generator. For example a 10KW rated gen-set. If I were to put 1 BTU equivalent of gasoline into the tank, waste 60%-80% of that through mechanical and heat loss in the engine, and then spin the generator with the remaining, wh
European OEMs in the Dark About New Motor Efficiency Laws
2011-01-19 14:30:00 Up to a third of Europe's OEMs are in danger of being left behind when looming regulation takes effect. According to The Manufacturer, nearly a third of OEMs are unaware that legislation mandating minimum motor efficiency levels will go into effect all throughout the EU starting in June 2011.
Dunk Porn: LeBron's Max Efficiency
2010-11-07 21:33:00 LeBron forces a turnover and takes it downcourt himself for a pretty slam.
Northwestern QB Dan Persa leads nation in Pass Efficiency
2010-09-13 22:14:00 I know it's only week two of college football. And both of Northwestern's first two terrible opponents are TERRIBLE. Especially Illinois State, who gave up 547 yards passing in week one to a bad FCS team, but the numbers are the numbers. And NU QB Dan Persa rested for pretty much the entire second half Saturday, so he didn't exactly have a chance to further augment his prestigious numbers. NU Head Coach Pat Fitzgerald often likes to say "stats are for losers." He said it again Saturday, but maybe he'll change his mind if someone informs him of this. After completing 19 of 21 passes for 222 yards and three touchdowns in his first career start at Vanderbilt, Persa's...
Facebook tips for more efficiency and ?fun?
2010-08-09 12:54:00 Since there are more than 500 million users at Facebook, that social network is the place to be meet most your friends. The last years the whole Internet is becoming more social and most new or existing services are providing social features which connect them to social sites like Facebook or Twitter. This article is ...
Notebook and other small devices? power supply efficiency
2010-04-15 15:53:00 Green IT is a big topic, that’s why more and more computer power supplies get a 80 PLUS label for showing off their superior efficiency. But if you every decide to run a Intel Atom based PC, use a PicoPSU, just power your notebook or charge your phone, you won’t really find out how efficient the power ...
Lamborghini?s future to include less weight, more efficiency, no force indu
2010-03-30 11:10:00 Times are changing pretty fast for a lot of carmakers, and tougher standards and regulations require more research into less exciting areas than some car fans might like. Lamborghini is no exception, as the flamboyant Italian supercar manufacturer has started taking measures to reduce its CO2 emissions and to cut back on weight. Now, being asked ...Post published on Rpmgo.comLamborghini’s future to include less weight, more efficiency, no force induction and no manualsRelated posts:Lamborghini will decrease weight rather than increase power in its future models The horse power race has been going on for...Lamborghini wants to develop a material stronger than carbon fiber Nowadays, carbon fiber is one of the best materials...Volvo C30 Efficiency takes only 4.5 l/100 km Volvo announced that it will be introducing a series...
By: RPMGO.com
GPS, Cameras To Improve Snowplow Efficiency
2009-11-14 15:58:00 Winter is, sadly, coming soon. Mayor Daley, after getting his proverbial butt spanked last year for cutbacks to snow removal because of budget deficits....
Portland Eco-Districts, OLED Lighting, Efficiency First, + Sustainable Path
2009-09-19 11:00:00 The green case for city living. Sustainable cities are the solution. A major price drop for solar panels. Panels of OLED lights fascinate designers. Interest in sustainable buidling grows. Portland establishes eco-districts to reduce GHGs. New green buildings put efficiency and environment first. The two different paths toward sustainability. Off-the-grid and self-reliant new homesteaders. The business of sustainability. Congratulations to Ben and Aaron for each winning a copy of the Earth DVD in our recent contest. Also, follow @jetsongreen on Twitter for more news, links, and commentary.
By: Jetson Green
New Gasoline-Diesel Mixture to Raise Efficiency and Lower Emissions without
2009-09-17 03:59:00 Both gasoline engines and diesel engines have their advantages over the other when it comes to certain applications. However, they both also suffer from drawbacks that some people find too difficult to live with. This may all change though, as a new gasoline-diesel mixture is being researched and tested that promises to bring the best of both worlds into the hands of the consumer.
Carbon Nanotubes Used to Build a Near-Ideal Efficiency Solar Cell
2009-09-15 16:16:00 From Gizmag Emerging Technology Magazine: Today's photovoltaic technology, while certainly promising, offers very poor efficiency because of inherent issues in its working mechanism. Using carbon nanotubes, however, Cornell University researchers now hope to lead the way to the nex
Prius 6-Door Limo Goes To Great Lengths For Hybrid Efficiency
2009-09-07 02:00:00 Coming after the innovative yet outrageous Prius Hearse, the Prius Limo stretches the concept of hybrid efficiency to new heights... or should we say, lengths.
Increasing the Efficiency of an Old Boiler
2009-09-04 15:38:00 Problem: I have a boiler that I use to circulate an antifreeze mixture through tubing that is in the concrete of my car wash bay floors. This boiler is 20+ years old and not nearly as efficient as it could be. During the harsh winter months here in Michigan, I see an increase of around $2500/month i
Tetris players found to have greater brain efficiency, thicker cortex and b
2009-09-02 23:05:00 From Engadget: You just knew all that Tetris playing you did as a kid yesterday was good for you, huh? A new study published by the big thinkers at Mind Research Network has found that "practicing Tetris" can actually improve brain efficiency and lead to a thicker cortex in other a
From speed comes efficiency?
2009-08-26 23:06:00 The annual Isle of Man TT Has spawned a new class This year, the Manx government added a futuristic new event to the June race schedule. The TTXGP, for "Tourist Trophy eXtreme Grand Prix," was billed as the first zero-emissions motorcycle race. All of us here know that there is no such
improving the efficiency of electric hybrid bike
2009-08-26 18:28:00 i am going to design a electric hybrid bike with improved efficiency wih existing one....... in that the shoock obsorbs and seats are designed in electrical design likewise copper coil wounded outside as a spring and inside with permanant magnet it should design with high flux density and improved n
Inverter Efficiency Errors
2009-08-23 05:04:00 Before I start, for those who have posted that it is cheaper to go out and buy an inverter rather build your own, it entirely depends on which part of the world you live in. The total cost of parts for a 2000 Watt Sine wave inverter outside of "developed" nations is roughly $30.00 USD. We are do
New 5-Stroke Engine to Boost Efficiency and Reduce Emissions
2009-08-23 00:54:00 Our four stroke engines have been around for a very long time and while many small changes have been made to them over those many years, the basic principal of operation has remained the same. Now, a new engine design that uses an additional stroke may be taking over the number 1 position when it comes to small powerplants.
A New Approach to Improve Diesel Engine Efficiency
2009-07-30 21:01:00 A New Approach to Improve Diesel Engine Efficiency Diesel Engines play an important role as Prime mover for various Stationary and Mobile Equipment for many Decades. It is being manufactured right from little horse power to more than hundred thousand horse power. There is no alternative for
NDT % vs. Joint Efficiency - ASME B.31.1
2009-07-29 16:38:00 The Question is How we can determinate the % of NDT for welds when the Factor E is different than 1 (Full NDT according with Table 136.4 ASME B31.1). But for Random per example with E 0.85, whats the % to be used, 10%, 20%,15%..........???? What is the way to determinate the minimun random
US Vehicle Efficiency Hardly Changed Since Model T
2009-07-24 14:56:00 From New Scientist - Online News: The average fuel efficiency of the US vehicle fleet has risen by just 3 miles per gallon since the days of the Ford Model T, and has barely shifted at all since 1991. Those are the conclusions reached by Michael Sivak and Omer Tsimhoni at the Un
Rock The Bike utilizes power efficiency of JBL PRX series Loudspeakers to d
2009-07-20 10:30:00 In a highly creative and environmentally forward-thinking application of JBL PRX portable loudspeakers, Rock the Bike, a designer and manufacturer of bicycles with an eye on raising the awareness of the ?bike culture,? has employed PRX loudspeakers at several of its live music events, which are run on human power generated on bicycles. For its ...
By: Gadget Mania
How to Calculate the Efficiency of Cooling Tower
2009-07-14 14:52:00 I have all the necessary data with me to find the efficiency of cooling tower. I used the following formula to find out the efficiency of cooling tower but i think it may lead to wrong answer...kindly help me out Efficiency = (Inlet Temp - Outlet Temp) / (Inlet Temp - Wet bulb temp of air)
Calculating Cooling Tower Efficiency
2009-07-14 14:52:00 I have all the necessary data with me to find the efficiency of cooling tower. I used the following formula to find out the efficiency of cooling tower but i think it may lead to wrong answer...kindly help me out Efficiency = (Inlet Temp - Outlet Temp) / (Inlet Temp - Wet bulb temp of a
Efficiency of 5 to 10 kw gasoline generators for home use
2009-07-13 03:23:00 For 100% efficient conversion you should get 38 kwh per gal of gasoline from these things. Anyone run a test on these small generators? Commercially generated power in the US goes from 10 to 40 cents/kwh, so these small inefficient engine/generators should cost more per kwh than this.
Efficiency of 5 to 10 KW Gasoline Generators for Residential Use
2009-07-13 03:23:00 For 100% efficient conversion you should get 38 kwh per gal of gasoline from these things. Anyone run a test on these small generators? Commercially generated power in the US goes from 10 to 40 cents/kwh, so these small inefficient engine/generators should cost more per kwh than this.
Money To Burn: CL & P, UI Have Millions In Energy-Efficiency Funds To Offer
2009-07-06 04:56:00 Image by 80sAustin via Flickr By LYNN DOAN, The Hartford Courant Late last year, Connecticut Light & Power Co. was desperate for energy conservation money. Several programs it runs for the state, which pay for power-saving improvements from lightbulbs in homes to tinted windows in office parks, were oversubscribed. The company had promised $10 million it didn’t have ...
By: News for Greens
condensor vacuum limits turbine cycle efficiency or not
2009-06-18 09:11:00 More the condensor vacuum more the turbine output & more efficiency or is there any limit.
Turbine Efficiency
2009-06-18 09:11:00 More the condensor vacuum more the turbine output & more efficiency or is there any limit.
Combustion Efficiency and Room Ventilation
2009-06-17 20:17:00 dear sir, I want to know what is the air:fuel(diesel) ratio for best combustion efficiency?Secondly how to calculate heat dissipated from engine and generator to calculate the fresh air and exhaust air required by allowing 6 deg.c. rise in room temprature than atmospheric tempr
Do High-efficiency Motors Save Energy?
2009-06-17 14:16:00 Motor efficiency is not a single number; it depends on how the motor is used. Most efficiencies are measured at 75% output. What if the motor is used at 50% output? Or 90%? Or what if the load is highly variable? Part of the energy savings comes from reduced motor slip — but this actually rais
DIY Solar Charger Wins United States Of Efficiency Contest
2009-06-16 20:14:00 Jerome Kelty of Boulder County, CO was so concerned about how much carbon dioxide was being released into the air simply by the charging of iPhones® and iPod Touches®, that he decided to build his own solar charger for them and a range of other devices with USB ports. He won a new 'green' Mac computer, and you win his DIY instructions for the solar charger! |
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