8_43 - \Threaded 180 8.43 Water at 40° F flows through...

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Unformatted text preview: \Threaded 180% 8.43 Water at 40° F flows through the coils of the heat ex~ “3mm bend changer as shown in Fig. P843 at a rate ol’ 0.9 gal/min. Deter— mine the pressure drop between the inlet and outlet of the hori— zontal device. 2 ( ) a \ 0.5-in. copper pipe (drawn tubing) i FIGURE P8. 43 %+%/g+zl 341+§¥fiz+zl +(fé' +21HL3)7Y721 wficre Z,‘ 21 V=l/,=Vz—-%— (09%)(23LSXI w—m_)___(6os) #47? 777 1,744) US fl-f2=(;£+g}g)29v1wfifih 8(129—{0 =/2H - (I) and Z/Q‘; 7(/.5) =/0.5 (see fab/e 8.2) 9/30) _% g; %%%§%mfi= /.2.X/0"¥ (see 746/6 8,/) 0.5 and Re =19 - Maxi” = 3690 (See 756/9 3.; Hence, from Fig. 8.!{3 f: 0.04! 4M, 79‘0”? £7. 0) - 2 M slaw 50:;W)elm-wow?) [9. #3 or fi"fz= 1/6. 8% = 0.325% 8"3‘7 ...
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