This document summarizes the parameters for operating a rotary dryer, including mass flow rates of wood and hot gas, temperatures, heat load, dryer dimensions, slope, flight height, time of passage for wood, number of flights, and power requirements. The rotary dryer is designed to dry 41754.2 kg/hr of wood with hot gas at 1021°C entering and 91.35°C exiting, providing a heat load of 288710443.5 kJ/hr to the 1.8997m diameter, 166.4304m long dryer running at 4 revolutions per minute.

1. Rotary Dryer (RD)
Parameter Operasi :
Laju alir massa kayu (Fs) = 41754.2 kg/jam 91859.24 lb/jam
Massa jenis kayu kering = 33.1 lb/ft3 531.3223345 kg/m3
Diameter partikel kayu (Dp) 20 mm 20000 um
Berat gas panas (Fg) = 44503.1501 kg/jam 97906.93022 lb/jam
Temperatur gas panas masuk = 1021 oC = 1294.15 K
Temperatur gas panas keluar = 91.35483594 oC = 364.50 K
Beban panas rotary dryer aktual (Qaktual) = 288710443.5 kJ/hr 273870726.7 Btu/hr
True Mean Temperature Difference = 929.65 K
Diameter Rotary dryer desain = 1.899745738 m 6.269160936 ft
Volume Kayu = 78.58544106 m3 2775.203625 ft3
Rasio Volume RD/Volume kayu = 6 6
Volume Rotary Dryer desain = 471.5126464 m3 16651.22175 ft3
Luas Penampang Rotary dryer = 2.833091587 m2 30.85236739 ft2
Kecepatan alir massa gas = 3173.400893 lb/jam ft2
Beban panas rotary dryer desain (Qdesain) = 273870726.7 Btu/hr
Panjang Rotary dryer desain = 166.4304283 m 539.7064525 ft
Ditentukan:
Jumlah putaran rotary dryer = 4 r/min
= 0.08 ft/ft
Slope (kemiringan) rotary dryer
B (konstanta tergantung dg Dp) = 0.035355339
Kecepatan alir massa kayu = 2977.380596 lb/jam ft2
= 71.07748435 +/- 12.20265838 min
= 2
= 0.158312145 m
= 684757.2898 lb
Time of passage
Jumlah flight
Tinggi flight
Estimasi berat kosong RD
Berat kosong RD plus material = 776616.5298 lb
Brake horse power (bhp) dari RD = 169.1177528 bhp 126.8383146 kW
Create PDF with GO2PDF for free, if you wish to remove this line, click here to buy Virtual PDF Printer

2. Create PDF with GO2PDF for free, if you wish to remove this line, click here to buy Virtual PDF Printer