Heat Balance of Rotary Dryer

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This is one sheet in my Rotary Dryer Spreadsheet to calculate heat balance of Rotary Dryer. Anyone interested to get the original version (xls format), please don't be hesitate to contact me at 08170891531.

Transcript of Heat Balance of Rotary Dryer

Page 1: Heat Balance of Rotary Dryer

a. Menghitung entalpi aliran 1, H1 pada T = 30.000oC

H2O Kayum, kg 20877.100 20877.100n, mol 1158551.609H -3.3116E+08 -1.1729E+08H1, kJ/hr -4.484527E+08

b. Entalpi yang dibawa aliran 2 (gas pemanas), H2 pada T = 1021 CKomponen n (mol) Hi (kJ/hr)N2 1104134.344 3.4397E+07O2 31384.727 1.1269E+06SO2 581.791 -1.4364E+05CO2 230292.353 -7.9269E+07H2O 134054.391 -2.7276E+07H2 -7.1165E+07

c. Menghitung temperatur pengeringan solidAir yang teruapkan = 18030.223 kg = 1000567.299 moldilakukan perhitungan Vapor Liquid Equilibrium (VLE) untuk komponen air.Nilai V/F = mol air teruapkan / mol air mula-mula 0.864Setelah trial & errordiperoleh T = 101.748 C 374.898 Kdengan P = 108.276 kPa 15.700 psia

Komponen zi A B CH2O 1.000 65.930 -7227.000 0.000

D E F ln Pv-7.177 0.000 2.000 4.684

Komponen Pv (kPa) Ki yi xi

H2O 108.176 0.999 1.000 1.001

d. Menghitung entalpi aliran 4, H4

H4 = Hairtakteruapkan+kayu pada T 101.748 CH2O Kayu

m, kg 2846.877 20877.100n, mol 157984.310Hi -4.4244E+07 -1.1549E+08H4, kJ/hr -1.5974E+08

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Page 2: Heat Balance of Rotary Dryer

e. Menghitung entalpi aliran 3, H3 dan temperaturnyaH3 = (H1 + H2) - H4H4 = Hairtakteruapkan+kayu

H3balance = -3.5988E+08 kJ

Dengan trial & error , diperoleh temperatur aliran 3 = 91.355 CKomponen n (mol) Hi (kJ/hr)

N2 1104134.344 2.1306E+06O2 31384.727 6.1419E+04SO2 581.791 -1.7118E+05CO2 230292.353 -9.0047E+07H2O 1134621.690 -2.7185E+08H3calculated -3.5988E+08

H1 H2 H3calculated H4

-4.4845E+08 -7.1165E+07 -3.5988E+08 -1.5974E+08Total -5.1962E+08 Total -5.196139E+08

Entalpi Masuk (kJ/hr) Entalpi Keluar (kJ/hr)Neraca Panas pada Rotary Dryer

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