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

!: Promotion 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 Right now

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Post Date : Jan 24, 2012 00:27:43
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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.

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Japan Declares Emergency After Devastating Earthquake Nuclear-Alex Jones Tv 1/2

!: Japan Declares Emergency After Devastating Earthquake Nuclear-Alex Jones Tv 1/2

Paul Joseph Watson www.infowars.com March 11, 2011 The horrifying consequences of the biggest earthquake to hit Japan since records began "are only just beginning to be discovered, with the tsunami that followed causing massive devastation and engulfing cities and airports, leading to the declaration of a nuclear emergency at the Fukushima No. 1 nuclear plant after efforts to cool the reactor cores failed malfunctioning. The magnitude quake that struck 8.9 Japan's north eastern coast this morning sent 30 foot high waves sweeping through impacted areas and the death toll is climbing by the hour. But an even greater tragedy could be imminent after Japanese authorities declared a nuclear emergency following technicians ' failure to pump water to cool a nuclear reactor plant located in the town ofOkuma. "The operator of the Fukushima No. 1 nuclear plant reported an abnormality Friday following a powerful earthquake which hit a wide area in northeastern Japan including Fukushima Prefecture, the industry ministry said," reports Kyodo Wire. "The system to cool reactor cores in case of emergency stopped at the No. 1 and No. 2 reactors of the plant operated by Tokyo Electric Power Co., it said." NHK Broadcasting reports that all six reactors shut down immediately following the earthquake, but that electrical problems prevented cooler pumps in reactor #1 from functioning. Emergency cooling systems were successfully activated for reactor #2, but presumably failed for reactor #1. Under ...

Japan Declares Emergency After Devastating Earthquake Nuclear-Alex Jones Tv 1/2

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10sec 1G Auto AWD DSM 10.3@132mph Going for a ride in the little auto on Snow tires ECMLink V3

!: 10sec 1G Auto AWD DSM 10.3@132mph Going for a ride in the little auto on Snow tires ECMLink V3

Combo as of now: -FP68HTA Turbo looks just like a EvoIII16g -ER 2.3 (Eagle Wiseco) 9.0 -HKS 272 (old School ) -Stock EVO beehive springs -light ER head port work -ETS race FMIC -ER Cold air intake -FIC 1650cc injectors -DSM Link V3 Speed Density Omni 4 bar map -255hp fuel pump with a 255hp inline -Ported EVOIII O2 Housing -FP Race Exhaust Manifold -3in Down Pipe only -Stock Intake manifold -Internal WG FP HTA Green spiking 33psi holding 30psi -E98 Fuel -Electric water pump -Half radiator -2400lbs 2570 with me in it. - English Racing Built Auto Transmission with Stock Converter

10sec 1G Auto AWD DSM 10.3@132mph Going for a ride in the little auto on Snow tires ECMLink V3

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