build your own solarpowered water pumping stattion外语英文电子书

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1、January/February2005BackwoodsHomeMagazineBuildyourownsolar-poweredwaterpumpingstationByJeffreyR.Yago,P.E.,CEMnthelastissue,therewasanexcellentarticlebyDorothyIAinsworthonwaterpumpingusingmechanicalwindmills.InthisissueIwilladdressanotherformof“free”waterpu

2、mping.Therearemanyremoteapplicationswhereasolar-poweredwaterpumpismorecosteffectivethaninstallingacon-ventionalgrid-connectedACpump.Irecentlydesignedasolar-poweredpumpingsystemforalocalfarmerwantingtopumpwaterfromalakeuptoawateringtroughforcattleinadistant

3、fencedfield.Wehavealsodesignedlargersystemstopumpdirectlyfromdrilledwellsuptoele-vatedstoragetanks,whichprovidegravity-fedwaterbackdowntoLocalresidentsenjoyingthe“solarwatersupply”remoteranchbuildings.attheopentopdrinkingtank.Basicsystemdescriptionofelectr

4、icalpower.Unfortunately,westorientationduringinitialsetupthisalsousuallymeansaverylowtoachievethebestoverallyear-roundThesesolarapplicationsmadeeco-flowrate,sohavingastoragetankorperformance.Formostapplicationsnomicsensebecausethelocationwasopentroughisess

5、ential.thetiltwillbeequaltoyourlatitude.tooremotetorunalongpowerline.AlthoughtheflowratecanbelessAsolar-poweredwatersystemisonethanonegallonperminute(GPM)forPumpcontrolleroftheeasiestsolarpowersystemstothesmallerpumpsizes,thissmallYoursolarpoweredpumpingsy

6、s-install,sinceyouwillnotneedabat-flowwillbefairlyconstantthrough-temshouldincludeapumpcontrollerteryorbatterychargingequipment.outthesolarday(9AMto3PMforsuchastheoneinthephotoonpageWhenthesunisshining,thesystemmostlocations).Thislowflowrate37.Althoughitis

7、possibletoconnectispumping,whenthesunisnotshin-canstillprovideover350gallonsofthepumpleadsdirectlytotheoutputing,thesystemisoff—simple.waterperdayfromallbutthedeepestterminalsofthesolarmodule,acon-Byaddingastoragetankandwellapplications.trollerprovidesmuch

8、betterpumpincreasingthesizeofthepumpingAsolarmodulecanbemountedperformanceandstart/stopcontrol.Itsystem,excesspumpedwatercanbealmostanywhere,butshouldfaceinawillalsoavoidtryingtooperatethestored,whichcanconti