Google Tech Talks August 3, 2007 ABSTRACT Case study of two googlers who had solar panels installed at their houses. Why? What the issues are? What the process is. How to size the system. How to place the system. How to predict your production. Energy conservation. How well did it work. System measurements. Credits: Speaker:Hy Murveit, Speaker:David Talkin, Speaker:Kurt Newick
Tuesday, December 27, 2011
Tuesday, December 20, 2011
Yamaha EF1000iS 1,000 Watt 50cc OHV 4-Stroke Gas Powered Portable Inverter Generator (CARB Compliant)
!±8±Yamaha EF1000iS 1,000 Watt 50cc OHV 4-Stroke Gas Powered Portable Inverter Generator (CARB Compliant)
Brand : YamahaRate :
Price : $791.10
Post Date : Dec 20, 2011 22:18:45
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The Yamaha EF1000iS inverter generator offers the ultimate in lightweight portable electricity. The EF1000iS and its inverter system features Pulse Width Modulation (PWM), delivering clean power so you can use it confidently for powering computers, solid-state appliances with built-in computer functions or microcomputer-controlled power tools. Other features include a lightweight, easy-to-carry design, Noise Block Acoustically designed sound reduction system and an extended run time. The EF1000iS is definitely a powerhouse performer at your fingertips. Engine: Yamaha OHV, HP: 2.2, Rated Watts: 900, Rated Watts LP: N/A, Rated Watts NG: N/A, Surge Watts: 1,000, Surge Watts LP: N/A, Surge Watts NG: N/A, Run Time: 12 Hours at 1/4 Load, Receptacles (qty.): 1, Noise Level (dB): 57, Fuel Type: Gasoline, Fuel Capacity (gal.): .66, Start Type: Recoil, Dimensions L x W x H (in.): 17 23/32 x 9 13/32 x 14 29/32
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Monday, December 12, 2011
JET Savonius Transverse Horizontal Axis Under Water Turbine (THAUWT)
JET Savonius Transverse Horizontal Axis Under Water Turbine (THAUWT). Double concave walls of each scoop of the new invented JET Savonius Turbine formed accelerating channel. By rotation the fluid flow is forcing radial, but passing inter walls (JET) channel the fluid is redirecting tangentially and forming the periphery JET stream. Because of the JETchannels big part of the fluid pressure over the rotor scoops is redirected into JET force (enhancing overall turbine performance) and also due to the channels the inductive scoop trailing edge losses of energy are vastly decreased. Owing to the mentioned above, the JET rotors (non-propeller) are about two and more times more efficient in comparison to the conventional rotors. Such JET turbines are described in the patent descriptions BG110 251/2008 and BG 110 340/2009 Based on new invented ROTOJET fluid kinetic energy converters we are developing number of wind and hydrokinetic JET rotor designs for river/canal/tidal applications. Each of them is full scalable. JET rotor/blades concept require new line of airfoil / hydrofoil cross section, new plan form, new pitch and twist designs, new hub etc. In addition we have developed complete new ROTOJET power system "flow - blade - rotor - drive train - electric generator - power controller/inverter" . ROTOJET power system design is easy tailored to the specific flow conditions (velocity, turbulence etc.) to achieve much better system capacity factor. Our aim is to manufacture basic ...
Thursday, December 8, 2011
Champion Honda Generator.avi
This is a video which compares the performance of the Champion model 73531i, 2000 watt max inverter generator with the 2000i Honda. Honda produces a very reliable machine. Champion produces a cost effective version which I recently purchased. Following RVnet.com forums, there is much discussion comparing the two products. Since I had access to the Honda, I decided to make a small video comparing the 2. The price of the Champion is nearly 1/2 that of the Honda. The sound produced from both are very similar. The Honda can produce slightly more power over the running Watts of 1600 to a max of 2000 for a period of 30 minutes per the manual and does just that. The champion goes into overload. However, everything under 1600 Watts is a go. For the money, you can buy 2 Champions with a parallel cable and get 2 times the power for nearly the same price as the Honda. This is a comparison of a non-scientific nature and for information purposes only. Both products are very good.
Thursday, December 1, 2011
My own solar system: Installing solar panels at my house
Google Tech Talks August 3, 2007 ABSTRACT Case study of two googlers who had solar panels installed at their houses. Why? What the issues are? What the process is. How to size the system. How to place the system. How to predict your production. Energy conservation. How well did it work. System measurements. Credits: Speaker:Hy Murveit, Speaker:David Talkin, Speaker:Kurt Newick
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