# Class37_Ex5 - 8.8“ According to ﬁre reguiations in a...

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Unformatted text preview: 8.8“ According to ﬁre reguiations in a town. the pressure drop in a commercial steel bulimia] pipe must not exceed 1.0 psi per 150 ft of pipe for ﬂowrmes up to sea galfmin. 1f the water Lem. permure is above 50‘“ F. can a 6—in-diameter pipe be used? I Defermfne Me pressure dmp m a 61%. a/Mcafer pipe. oghtigwﬁ \$+g+iz+f££L 7770.: f V1 "‘ _. _____ _, 5 ﬁg”; .. {5—1; J were 1‘ MW), 4 ' _¥ Fram 7215/98.!) 5 = 0.000151% me ﬁrst} 3-8 = ﬁgs/ﬁg) = 3x10 The laryaﬂ ff; WW occur wH/J ME Jamar?! TC; 1" | Whr'éh acoumfwﬁ‘b M1" ¢md//f3~ff R3; ‘3’” 1’4ny 1/. \\ Since #29 mom?) 0? waffr wafﬂe: 4 ME {PW/05mm Pa dear-meg we came/er {he wéfan’ can? "‘ 71’5”? +5” From Taéfe W, m’ﬂ'ﬁ t5” =51: 5913/79"; and ﬁAWH/‘E T ﬂka . . 3 ”11 Q 5(500ﬁ’mé3‘353mm)(23!’7£ )(IEI Err-3,) : 5.67:? Mm! K-‘lé and 53:31.. I J V5 W fC-EML Thus) . if! .5 Re=¥e:( 67: (£ZH):2:01XIUS M‘wxfﬁ 4. . 5 .. . Hence, wrlh RFZJWD and § =3xia" we oéfam {mm Eyﬁzg F -= 0.018 Therefarel From 57:03! Mwm (mm (5.57;!)1 {F {ﬁﬂz-HJ l—FLlﬁﬂ : 2.79 "H so #144 “5' 1 11‘! If”?!- :. (2.79H){62.If%) : 158\$ .WE"): [,1]?ij 3-],13/05; ﬂ 6:1aadfam91‘f’r pipe wuﬁm/xyM/y mm #34); 7%? til/0W0! faaprr'pwwﬂ 725st mg, 4 My: Map 541:»;le dredﬂhe— minim”? dr'amer’er can :99 = +0 be D : 0,513 H :2: 5,37th ...
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