Plate Dan Frame

8/11/2019 Plate Dan Frame

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Hot fluid Physical properties

mh 275000 kg/jam 76.38889 kg/s

Thi 35.4 oC Density , r

Tho 32.8 oC Viscosity,m

coolant: Prandtl Number,Pr

mc 24000 kg/jam 6.666667 kg/s Heat Capasity, Cp

Tci 28.8 oC Thermal conductivity

Tco 31.6 oC

Q 796922.979 J/s

2

TLMTD 3.89914515

3

NTU 0.71810612

Ft 0.99872252

4

TM 3.89416406

5

U tebak 2113.01451 Tebak Euy !!!! 2113.014512

2169.07668

6

A 96.85 m2

Duty

Log Mean Temperatur Diffenece

Log Mean Temperatur Correction Factor

Surface Area Required

Based on Coulson and Richardson's Chemical Engineering vol.6

Corrected Log Mean Temperatur Difference

Estimation of U


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Plate Dimension

A efektif 0.65 m2 Pass 1 biasanya 0,03-1,5 m2

P efektif 1.5 m P/L 3 rasio L/P 2 sampai 3

L efektif 0.5 m

Plate spacing 0.0015 m biasanya 1.5-5 mmK Stainless Steel 16.3 Watt/m.K

Plate Thickness 0.0004 m biasanya 0.5-3 mm

Path length 1.5 m

Port Diameter 0.1 m A port 0.00785 m2

No.of Plate 149 149

Channel per pass 74 74 149A Channel 0.00075 m2

Hidraulic Mean D 0.003 m2 biasanya dua kali plate spacing

8

Mash Channel Velocity 1.405943 m/s

Re 5035.812

Nu 136.2177

hp 24751.66 Watt.m-2oC-1

Water Channel Velocity 0.120653 m/s

Re 4.52E+02

Nu 27.73362hp 5454.279 Watt.m-2oC-1

9

Water 8000

Ligth Organic 10000

1/U 0.00047328

U yang baru 2112.9

error 5.4876E-05 0.01%

10

Mash Jf 4.65E-02

Pp 128025.8 N/m2

Number Of Plate

Film Heat Transfer Cofficient

Overall Coefficient

Pressure Drop


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v Port 9.940109

Ppt 62873.12

P Total 190899 N/m2 1.90898956 Bar

27.6875527 Psi

Water Jf 9.59E-02

Pp 23031.79

v Port 0.853022Ppt 470.8827

P Total 23502.68 N/m2 0.23502677 Bar

3.40877514 psi


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ethanol water Mash (11 %-v ethanol, 89%-v water)

???? 995.586 978.97(kg/m3) (Directly)

0.001 7.98E-04 8.20E-04 (Pa.s)

1.37E+01 5.7 6.06E+00

2495.266667 4200 4012.47933J/kg.oC

0.1820 0.59 0.54512 Watt/m.K

error 0.01%

All Physical Properties are taken from Perry's , Mc Cabe and Geankoplis


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Pelat

Channel per pas 73.99263 tebak

No. of Plate 148.9853


Re 5.04E+03

Nu 136.2264921

hp 24753.26179 Watt.m-2oC-1


Re 4.52E+02

Nu 27.7354178

hp 5454.632166 Watt.m-2oC-1

1/U 0.000473

U 2112.963

error 1.53E-08 1.53356E-06 persen

U* 2113.225

delta U 0.068468


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Heat Capacities Ethanol

T Cp

23 0.577

41 0.621

30 0.594111 Cal/gr.C 2495.267 J/Kg.C

miu 1.05 cP 0.00105 Pa.s

Using Regression method :

Viscosities of ethanol

Perhitungan Data FisikHeat Capacities of Ethanol


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Ethanol Water Mash thermal divusivity etha

Pr 15.59542 5.7 6.08E+00

Viscosity,m 0.001 7.98E-04 8.20E-04 Pa.s

Cp 2495.267 4200 4.01E+03 J/kg.K

k 0.16 5.88E-01 5.41E-01 Watt/m.K

Cp 2495.267 4200 4.01E+03

Viscosity, m 0.001 7.98E-04 8.20E-04

k 0.182 5.88E-01 5.43E-01

Pr 13.71026 5.7 6.057416

x Y

Prandtl Number of Mash Thermal


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nol 160 mWatt/m.K 0.16 Watt/m.K

onductivity of Ethanol


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K water pada T =30,2 C

27 47

5


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Correction Factor y=mx+c c=mx1+y1

x y m c

0.063 1 -0.02028 0.998723

1 0.981 54.94737 55.92837

2 0.956 2.939655 6.835314 0.931 1.67188 7.61852

6 0.869 0


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1


mh 275000 kg/jam 76.38889 kg/s






Tco 31.6 oC

Q 796922.979 J/s

2

TLMTD 3.89914515

3

NTU 0.71810612

Ft 0.99872252

4

TM 3.89416406

5

U tebak 2000 Tebak Euy !!!! 2000

1.5

6

A 102.322728 m2


Duty




Estimation of U



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7

Plate Dimension


P efektif 1 m P/L 3 rasio L/P 2 sampai 3

L efektif 0.33333333 m

Plate spacing 0.0015 m biasanya 1.5-5 mmK logam 205 Watt/m.K


Path length 1 m


No.of Plate 186.0413 187

Channel per pass 92.52066 93 187A Channel 0.0005 m2

Hidraulic Mean D 0.003 m2 biasanya dua kali plate spacing

8


Re 6.01E+03

Nu 152.8198

hp 27768.37 Watt.m-2oC-1


Re 5.39E+02

Nu 31.11377hp 6119.041 Watt.m-2oC-1

9

Water 8000

Ligth Organic 10000

1/U 0.00042639

U yang baru 2345.28m2

10

Mash Jf 4.41E-02

Pp 96603.83 N/m2

Pressure Drop

Number Of Plate


Overall Coefficient


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v Port 9.940109

Ppt 62873.12

P Total 159477 N/m2 1.5947696 Bar

Water Jf 9.09E-02

Pp 17378.99

v Port 0.853022Ppt 470.8827

P Total 17849.87 N/m2 0.17849873 Bar


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???? 995.586 978.97(kg/m3) (Directly)

0.001 7.98E-04 8.20E-04 (Pa.s)

1.37E+01 5.7 6.06E+00

2495.266667 4200 4012.47933J/kg.oC

0.1820 0.59 0.54512 Watt/m.K

error U 17.26%

error A 47.55%

error N 28.08%



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1


mh 275000 kg/jam 76.38889 kg/s






Tco 31.6 oC

Q 796922.979 J/s

2

TLMTD 3.89914515

3

NTU 0.71810612

Ft 0.99872252

4

TM 3.89416406

5

U tebak 2797.61265 Tebak Euy !!!! 2797.612647

6

A 73.1500323 m2


Duty




Estimation of U



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7

Plate Dimension


P efektif 1 m P/L 3 rasio L/P 2 sampai 3

L efektif 0.33333333 m

Plate spacing 0.0015 m biasanya 1.5-5 mmK logam 205 Watt/m.K


Path length 1 m


No.of Plate 133.0001 134

Channel per pass 66.00003 67 135A Channel 0.0005 m2

Hidraulic Mean D 0.003 m biasanya dua kali plate spacing

8


Re 8.34E+03

Nu 189.1232

hp 34364.94 Watt.m-2oC-1


Re 7.48E+02

Nu 38.50507hp 7572.664 Watt.m-2oC-1

9

Water 8000

Ligth Organic 10000

1/U 0.0003881

U yang baru 2576.63m2

10

Mash Jf 4.00E-02

Pp 121529 N/m2

Pressure Drop

Number Of Plate


Overall Coefficient


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v Port 9.940109

Ppt 62873.12

P Total 184402.2 N/m2 1.84402165 Bar

Water Jf 8.24E-02

Pp 21863.02

v Port 0.853022Ppt 470.8827

P Total 22333.91 N/m2 0.22333907 Bar


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???? 995.586 978.97(kg/m3) (Directly)

0.001 7.98E-04 8.20E-04 (Pa.s)

1.37E+01 5.7 6.06E+00

2495.266667 4200 4012.47933J/kg.oC

0.1820 0.59 0.54512 Watt/m.K

error U 7.90%

error A 5.48%

error N 8.22%



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Titanium 21

Stainless 16.3 100 CAluminium 205 17 C

Pelat

Channel per pas 73.9926345 tebak

No. of Plate 148.985269


Re 7.55E+03

Nu 177.3049629

hp 32217.49378 Watt.m-2oC-1


Re 6.78E+02

Nu 36.09890518

hp 7099.451352 Watt.m-2oC-1

1/U 0.00039885

U 2507.23204

error 0.00010748 0.010748497 persen

U* 2533.22575

delta U 675.673337


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Plate Dan Frame

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