!8!# Cheaper Jump Starter !8!# Yamaha Keyboard Sustain Pedal Right Now
Monday, August 29, 2011
Tuesday, August 23, 2011
An Investigation of PV Powered Brushless DC Motors for Solar Pumping: An autonomous and elegant integration of electric motor and pump for use with a solar domestic hot water system
!±8±An Investigation of PV Powered Brushless DC Motors for Solar Pumping: An autonomous and elegant integration of electric motor and pump for use with a solar domestic hot water system
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Price : $59.23
Post Date : Aug 24, 2011 00:42:09
Usually ships in 1-2 business days
Typical solar domestic hot water systems use a liquid working fluid to transfer heat from the solar collectors to the hot water storage tank. This book presents the results of a detailed investigation of a unique design and integration of electric motor and pump to circulate the liquid working fluid. The motor's energy source is electricity that is generated from the sun by a photovoltaic module, creating an autonomous heating system. The design under review is a brushless DC motor that utilizes the magnet of a "mag-drive" pump as its rotor. This motor and pump technology, and integrated design results in both increased component utilization and increased reliability. The power switching devices of the motor perform commutation and maintain the photovoltaic module at the maximum power point. The pump magnet acts as the magnetic coupling and the motor rotor. Increased reliability is achieved through the use of solid state power electronics for commutation and the replacement of a dynamic pump seal with a static O-ring seal. This investigation reviews each major component's characteristics under a variety of conditions to identify appropriate design choices and areas for improvement.
Coupon Onkyo Tx-sr608 Receiver Single Cup Keurig Compare !8!# Hydra Rib Basketball Goal Best
Saturday, August 20, 2011
Topsflo TS5 15PV Solar DC Circulation Pump
!±8± Topsflo TS5 15PV Solar DC Circulation Pump
This long life brushless pump is highly energy efficient, and runs easily directly from a small PV panel, making it a great match with any Heliatos Solar Water Heater System.Features of this product include:-A soft start at low in-rush current-Minimum start-up power requirement less than 2 Watts-Durable permanent magnetic rotor/impeller and ceramic shaft-Protection against water leakage in drive circuitry, excessive temperatures, and circuitry load (pump will automatically slow or stop)-Whisper-quiet operation: 45 dB from 1 m distance-Excellent flow rate: about 11.5 liters/minute
Tuesday, August 16, 2011
Saturday, August 13, 2011
SHURflo 2088-422-444 2.8 Classic Series Potable Water Pump
!±8± SHURflo 2088-422-444 2.8 Classic Series Potable Water Pump
Shurflo potable water pumps are designed and constructed to deliver high performance, reliability and serviceability. These potable water self-priming pumps employ three independent pumping chambers to lift water up to 12 feet. They provide smooth flow and operate quietly. All Shurflo pumps have a built-in check valve that is rated to 200 PSI which prevents backflow into the tank, and contain an adjustable switch. This water pump can even run dry without damage! Comes wtih a 2 year limited warranty, and can be mounted in any position. UL, CSA and IAPMO apply to some models.
Wednesday, August 10, 2011
Monday, August 8, 2011
Friday, August 5, 2011
Kyoto Solar Cascading Fountain Kit
!±8± Kyoto Solar Cascading Fountain Kit
Post Date : Aug 06, 2011 05:00:55 | Usually ships in 1-2 business days
This solar powered 4 Tier fountain is made of natural terracotta and creates a relaxing outdoor environment with the soothing sound of natural running water. For garden, patio or balcony use, this cascading water feature constantly recycles the same water and requires no wiring or electricity.
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Landscape Lighting Transformers Quickly Shopping Diaper Size !8!# Zico Pure Coconut Water Top Quality
Wednesday, August 3, 2011
Monday, August 1, 2011
3 Watt Solar Powered Water Fountain Pump
!±8± 3 Watt Solar Powered Water Fountain Pump
Post Date : Aug 01, 2011 17:08:14 | Usually ships in 1-2 business days
- 1pcs 3W Amorphous Solar Panel
- 12-20 DC Brushless Pump
- 10 Feet Cable
- Aluminum Frame with plastic spike set fountain head (5 pcs)
- Control housing with Lead-acid battery. 12V-4AH fountain light . 3 white LED