| Show IRRIGATION BY fly J ELECTRICITY Electrical R Review Irrigation ton as ns usually thought of e consists In conducting con con- ducting to the arid arM district water r from a distance either cither through pipes or by means of or canals canals and there big ing It H. There Thero Is Js however another l method thod of Irrigation which ma may be applicable when the he section to be watered is Js too far from front th running streams Such a n system was ed cut sonic some years ago In a paper by F. F E E. E TIn before the tho American Society of of Civil Engineers This Is the Civi HY at Ontario Cat Cal Cal The Tho striking feature of oC th tIme the Ontario system Is that II instead of oC transportIng transport transport- Ing water to tho the dry section ecton water Is used to generate electrical which is Itself transported port d or rather rathel transmitted to various points throughout the tobe be watered and anc there used to operate pumps which draw the lie water from rein underground sources Such un n arrangement ar ar- ar- ar can be adopted only where there is Js an underground n ur of water sufficiently Jal large Jarge for e or the tho pur- pur pur pose Moreover an electric le system probably would bo be more expensive to Install except where the lie physical l ai uhf dlf- of constructing a canal cabal ar mire ure ver very gl great t or the time distance through which th the water is Js conducted Is itself great greaL But lut there are alC no Iselt many such situations to which lh ih water vatel is is conducted only at s a prohibitive co cost coat If If I on the tho other othel h hand nd Is t a waterpower not too far awa away the thie dee clec- 1 irrigating A 5 system mIgi might 1 clec- clec b be I i LUL lin me nO CI s between the lie wat water r and the time farms of not much Importance and th the cost are Ie of or running a power lint line Is n than that lint of or building an canal Time The electrical canal power ma may i l 1 conducted c over o a a. small wh wire un url hill and 11 down with wih equal equa Ca facility ll water vater wat r must bo bum led Jed In a largo large d ditch ch built bulit lul nearly nearl level e or ol clue eln dich ex x pensive pipes P tr ti-tr le I S. S J. J j. j l 1 |
