위생설비실험 과제1

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"위생설비실험 과제1"에 대한 내용입니다.

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Example 8-10 Measuring Flow Rate with Orifice Meter

The flow rate or methanol at 20˚C (ρ = 788.4㎏/㎡ and μ = 5.857×10⁻⁴㎏/m‧ s)through a 4㎝-diameter pipe is to be measured with a 3㎝-diameter orifice meter equipped with a mercury manometer across the orifice place, as shown in Fig. If the differential height of pipe and the average flow velocity.

[주어진 조건]
ㆍD = 4㎝(=0.04m)
ㆍd = 3㎝(=0.03m)
ㆍh = 11㎝(=0.11m)
ㆍThe methanol at 20˚C - ρ = 788.4㎏/㎡
- μ = 5.857×10⁻⁴㎏/m‧ s
ㆍThe mercury ρ = 13600㎏/㎡
ㆍThe discharge coefficient of the orifice meter is Cძ = 0.61

[풀이]
β = d/D = 3/4 = 0.75
A = Л‧d²/4 = Л(0.03m)²/4 = 7.069×10⁻⁴㎡
∆p = p₁- p₂= (ρHg - ρmet)g‧h ⟹ The pressure drop across the orifice

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1유체.hwp
Ex 8-10.EES
HW1 유체-1[1]_수정.hwp
Prob 8-125.EES