Variable Speed Blowers are built for optimal service life., AMETEK Technical Indust Designed for Gas-Fired Burner Systems: Nautilair® 7.6" (192mm) variable speed blowers for gas-fired burner systems incorporate brushless DC motors to enable reliable performance in excess of 20,000 hours with minimal maintenance. These pre-mix burner blowers are designed to deliver a measured air/fuel mixture to optimize combustion and reduce nitrous oxide and carbon monoxide emissions. Applications include commercial and residential boilers, water heaters, furnaces, foodservice equipment, kilns, and fuel cells, among others. They offer practical alternatives to conventional fixed speed or two-speed blowers, intake damper systems on fixed speed blowers, or inverter-driven variable speed blowers. When used with a modulating gas valve, these compact, lightweight, rugged, versatile, and high-speed solutions can satisfy a wide range of system designs. Onboard IntelliGen(TM) controller electronics integrate a factory-programmed digital signal processor (DSP).
The Wood 103 | Otherpower This page is all about a rather silly, quick project where in about 1 day I built a small wind generator using the following items, and nothing else.... (1) Wood (2) Copper wire (3) Surplus Neodymium magnets (4) Dirt (5) 10" piece of 3/8" steel shaft (6) Two bolts, but these are optional. ...and that's all, unless we count glue, and linseed oil which I used for finishing. Pictured above is one of the magnets I used. Above you can see the armature for the alternator. Pictured above you see the wooden pillow block bearings. The stator, on which the coils are wound was cut from two pieces of 2" X 4" lumber. I dragged a magnet around in the dirt of my driveway, so that it would attract the magnetite sand. The dirt was mixed with epoxy, so that I had a thick paste. The completed alternator! To stay with the "style" of the project I decided to build the whole windmill out of wood, it's a fairly simple design and should be self explanatory. The prop is wooden, made from 1" X 4" lumber.
Industrial Supply Parabolic solar oven The idea is that if the parabola is cut symmetrically along 8 radial directions and flattened out, then it would appear like an 16-petalled flower. So once you have the petals made of any flexible material you can bend them in the shape of a parabola. I used 5 mm thick plywood. I think you can use a thinner plywood, but then you'll need to add a stronger structure to stiffen the parabola. I used this publication to calculate the dimensions of the petals. Here is a google spreadsheet with everything you need (you can download it to modify it). modify the focal length of the parabola modify the number of petals choose the length of the petals I've also included a petal in svg that I created using Inkscape. Once you've cut the petals, drill holes every 20 cm along the sides of the petals so that you attach them together with the plastic cable ties.
Pulse Output WattNode AC Electric Power and Energy Meter The WattNode Pulse is a true RMS AC watt-hour transducer with pulse output (solid state relay closure) proportional to kWh consumed. The WattNode provides accurate measurement at low cost to meet your needs for sub-metering, net-metering, energy management, and performance contracting applications. The complete Pulse Output family measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations. Diagnostic LEDs Our diagnostic LEDs provide a per-phase indication of power (green flashing) and negative power (red flashing) to help troubleshoot connection problems, like swapped CTs, or excessive line voltage. Advanced Output Capabilities are available as factory options: Standard output provides pulses on one terminal for positive energy and on another terminal for negative energy. Key Features and Benefits Pulse output: Compatible with energy management systems and data loggers. Safety Note
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