38 research outputs found
A Study on the Performance Analysis of
PIVμ μν μμ§μ§ μνν¨λ€ μ±λ₯ν΄μμ κ΄ν μ°κ΅¬
μ μμ₯μ μμμμ§κ³Ό ν경쑰건μ λ³νμ κ΄κ³μμ΄ νμ μμ ν λ¬Όμ κ³μνμ¬ κ³΅κΈν μ μλλ‘ μ€κ³λμ΄μΌ νλ€. λ°λΌμ μ μ곡μ μ μμ νκ³ μΆ©λΆν μμ λ¬Όμ ν¨μ¨μ μΌλ‘ 곡κΈν μ μλλ‘ λ¨μ곡μ λ€μ μ‘°ν©ν΄μΌ νλ©° μΌλ°μ μΌλ‘ 4κ° λλ κ·Έ μ΄μμ 곡μ μΌλ‘ ꡬμ±λμ΄ μλ€(νΌν, νλ‘νμ±, μΉ¨μ , μ¬κ³Ό κ·Έλ¦¬κ³ μλ
곡μ λ±). κ° λ¨μ 곡μ λ€μ λ°μ νκ² μνΈκ΄λ ¨ λμ΄ μμΌλ―λ‘ κ°λ³κ³΅μ μ μ΄μ μ λ€λ₯Έ 곡μ μ μ΄μ κ³Ό μ 체μμ€μ μν₯μ λ―ΈμΉλ€.
μμ§μ§μμμ νλ‘νμ±μ΄λ λ°λ‘ μμ κΈμνΌν곡μ μμ μμ§μ λ₯Ό κΈμν λΆμ°μν¨ λ¬Όμ μ²μ²ν κ΅λ°μν€λ 곡μ μ΄λ€. νλ‘νμ±κ³΅μ μ μ
μ μνΈκ°μ μ μ΄μ΄ μ΅λλ‘ μ΄λ£¨μ΄μ§λλ‘ μ€κ³ν΄μΌ νλ©° μ΄λ¬ν μ μ΄μ μ 체λ΄μ μλκ²½μ¬(Gκ°)μ λΉλ‘νλ€.
μ΄ μλκ²½μ¬λ μ리νμ λλ κΈ°κ³μ κ΅λ°κΈ°μ μν΄ λ°μνλ€. κ°μ₯ μ΅κ·Όμ μ€κ³λ μλ£λ₯Ό λ°νμΌλ‘ νλ‘νμ±μ λ°©λ²μΌλ‘ λ§μ΄ μ¬μ©λ μμλλ‘ λμ΄ν΄λ³΄λ©΄, 1)κ° λ¨μ΄ μ μ ν λλμ΄μ§ μνλ₯ νλ¦μ κΈ΄ λ κ°λ₯Ό κ°μ§ νλ‘ν λ¬νμ μμ§μΆ κ΅λ°κΈ°, 2)κ° λ¨μ΄ μ μ ν λλμ΄μ§ μνλ₯ νλ¦μ ν¨λ€ν κ΅λ°κΈ°, 3)μν μ°λ₯μμ μ΅μ’
λ¨μ κ΅λ°κΈ°λ₯Ό μ€μΉνλ νΌν©ν, 4)κΈ°ν λ°°νλ¬λ¦° μ°λ₯μμΌλ‘ λλμ΄μ§λ€.
00μ μμ₯ μμ§μ§ νμμ μκΈ°μ 2)μ κ²μ΄λ μ΄ 4λ¨(κ° λ¨μ ꡬλΆμ λͺ¨λ μ 곡μ λ₯λ²½)μ€ 1 λ° 2λ¨λ§ κΈ°μ‘΄μ μ 곡μ λ₯λ²½ ννμμ μ°λ₯μ λλ₯λ²½(SlitλΆ)μΌλ‘ κ°λ.λ체ν νΉμ΄ν νμμ μμ§μ§ νμμ΄λ€.
λ³Έ μ°κ΅¬μ μ°κ΅¬λ°©λ²μ μμ§μ§ λ° κ΅λ°κΈ°λ₯Ό ν¬λͺ
μν¬λ¦΄λ‘ 1/10μ μΆμλͺ¨λΈμ μ μνκ³ κ΅λ°κΈ° 1μ‘°λ₯Ό μμ§μ§ λ¨μλ³λ‘ μ΄λνλ©΄μ νμ μ, ν¨λ€νμ, Slitμ νλ±μ λ³νμμΌ κ°λ©΄μ μ€νμ μννμλ€.
λ³Έ μ°κ΅¬μ λͺ©μ μ 00μ μμ₯ μμ€κ°λ곡μ¬μ λ°λ₯Έ μμ§μ§μ ν λͺ©κ΅¬μ‘° λ³κ²½μ΄ μμ§μ§μ μμ§ν¨μ¨μ μ΄λ€ μν₯μ λ―ΈμΉλμ§ λΆμν΄ λ³΄κ³ κ·Έ κ²°κ³Όλ₯Ό ν λλ‘ νμ¬ μν ν¨λ€ν μμ§κΈ°μ μ€κ³κΈ°μ€μ μ립νμ¬ ν₯νμ μμ μ€λΉμ κ°.λ체μ νμ©νκ³ μ νλλ° κ·Έ λͺ©μ μ΄ μλ€. μ΄ν κ·Έ μ€μ μ°κ΅¬ λ΄μ©μ λ€μκ³Ό κ°λ€.
1)PIVμ μν μμ§μ§λ΄μ μ λνν λΆμ
2)μνν¨λ€(κ΅λ°κΈ°) μ€κ³μμ λΆμ(ν¨λ€μ μ§κ²½, κ°μ, λ©΄μ , νμ μ μ°μΆ)
3)μ°λ₯μ λλ₯λ²½μ SlitλΆμ μ½ν μ£Όμ
μ μ΅μ μ μ£Όμ
μ§μ μ μ λ° Gκ° μΈ‘μ
4)νλ‘νμ λ°©μ§λ₯Ό μν μ°λ₯μ λλ₯λ²½ Slit ν¬κΈ° μ°μΆ λ° λ°°μΉλ°©ν₯ κ²°μ
5)κ΅λ°κΈ°(μν ν¨λ€ν) Gκ°μ μ΄λ‘ μ μ°μΆ κ·Όκ±° νμΈ λ° μ€λ₯μμ KOWACO ChangWon Branch has conducted a new study which aimed to improve flocculation process performance in horizontal paddle mixers. The purposes in this study is to increase the flocculation efficiency by finding significant operating factor affecting flow characteristics.
In the result of this research, the error in equation of G-value estimation and mixer RPM calculation which have been used until quite recently was corrected in mathmatical form. Also, computer program to calculate G-value and RPM was developed and their statistical list was represented.
PIV experimentation was conducted with flocculation model mixers by 1/10 size ratio. Characteristics of all flow fields were examined by several operating conditions with clear description of complex three-dimensional flow fields.Abstract = β
²
Nomenclature = β
³
μ 1μ₯ μλ‘ = 1
1.1 μ°κ΅¬μ λͺ©μ = 2
1.2 μ°κ΅¬λ΄μ© = 4
1.3 μ°κ΅¬λ°©λ² = 5
1.4 κΈ°λν¨κ³Ό = 5
μ 2μ₯ μμ§μ§ Gκ° μ°μ λ° κ²ν = 6
2.1 μλλ ₯ (Pw) λ° Gκ° μ°μΆ = 6
2.2 Gκ° λ° μμλλ ₯ μ°μ μ€λ₯μμ = 16
2.3 Gκ° μ°μ μλκ³μ° νλ‘κ·Έλ¨κ°λ° = 19
2.4 μμ§μ§ λ¨λ³ Gκ° μ‘°κ²¬ν = 21
μ 3μ₯ PIVμ μν μ λν΄μ = 31
3.1 PIVμ κ°μ = 31
3.2 μ€νμ₯μΉ κ΅¬μ± = 38
3.3 μ λμ₯ κ³μΈ‘ κ²°κ³Ό λ° κ²ν = 41
μ 4μ₯ κ²°λ‘ λ° μ μΈ = 108
κ°μ¬μ κΈ = 11
μμΉν΄μκ³Ό μλͺ¨λΈ μ°κ΅¬λ₯Ό ν΅ν RH 곡μ μ€ μ©κ°μ μ λ νμκ³Ό νΌν© κ±°λμ°κ΅¬
νμλ
Όλ¬Έ(μμ¬)--μμΈλνκ΅ λνμ :κΈμ곡νκ³Ό,1999.Maste
μΉ΄μ€μ€μ μ΄λ―Έμ§μ ννμ κ΄ν μ°κ΅¬ : λ³ΈμΈμ λͺ©ν μνμ μ€μ¬μΌλ‘
νμλ
Όλ¬Έ(μμ¬)--μμΈλνκ΅ λνμ :μμνκ³Ό ννμ 곡,1997.Maste
μ첨νμΌμλ°μκ³Ό CHβμ COβκ°μ§λ°μμμ μ μ©μ μν λ©μ‘°ν¬λ¬μ€ λ¬Όμ§μ λ΄μ§λ κ³ λΆμ° Ni μ΄λ§€μ κ°λ°
Thesis(doctoral)--μμΈλνκ΅ λνμ :μμ©ννλΆ,2004.Docto
RH 곡μ μμ μ λ μμμ ν¬ν¨ν νν λ°μ 곡μ λͺ¨λΈ κ°λ°
Thesis (doctoral)--μμΈλνκ΅ λνμ :μ¬λ£κ³΅νλΆ,2002.Docto