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<br />r. . ". \ <br />U U';' J '1': <br /> <br />EXam~le: As.ume that a canal four milee long carri~s 10 <br /> <br />eee. ft. of ~ter And ~e a surfaoe width of 15 f~At. WhPt ie <br /> <br />the final temperature of the vater if the initial tem?srature 1e <br /> <br /> <br />40Gr, the air temperature is 200F and the v1nd velooit1 1s 5 milea <br /> <br />]lllr hour. <br /> <br />V:: 5 x 5280 = 7.333 <br />3600 <br /> <br />f- 1.75+(0.25 x 7.33) = 3.58 <br />L = 4 x 5280:: 21120. <br />b = 15 ft. 5 = 1.00 <br />M ~ 10 x 62.4 x 3600 :: 2.246.400 Ib./hr. <br /> <br />fbl = 3.58 x 1~ x 21120. <br />iii5" 2.24 ,400. <br /> <br />= <br /> <br />l,la4.144 <br />2,2 6.400 <br /> <br />:: 0.50487 <br />e -~l = 0.6036 <br /> <br />and <br /> <br />OL = 20 + (40-20) 0.6036 = 20 + 12.07 <br /> <br />32.07 OF. <br /> <br />, <br />.,\ <br /> <br />7 <br />