Objective 1ChE422LGroup 4Loyao, Manlangit, SiclotSIZE REDUCTIONDate performed:January 8, 2015Objective 1:Investigate how the net energy requirement of a jaw crusher varies with the mean particle size of the product.mass of quartered sample before screening (g)503.64Data for screen analysis of sample 1 (for jaw crusher with an opening of 8 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

10265.36269.343.980.00790.090.000020.18323.77324.320.550.00110.2150.007930.25308.68309.290.610.00120.350.009040.45326.88327.420.540.00110.650.010250.85381.10387.686.580.013120.011363.15447.84488.1140.270.07994.7250.024376.3456.82908.16451.340.89577.150.1043total503.87mass of quartered sample before screening (g)501.21Data for screen analysis of sample 2 (for jaw crusher with an opening of 4 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

1 (bottom)0265.43274.559.120.01820.090.000020.18323.84325.912.070.00410.2150.018230.25308.72312.263.540.00710.350.022340.45326.81333.486.670.01330.650.029450.85381.12451.4970.370.140420.042763.15447.84716.56268.720.53634.7250.183276.3456.80597.35140.550.28057.150.7195total501.04

Data for crushing of sample 1Data for crushing of sample 2initial readings for jaw crushertime (s)ammeter reading (A)net current (A)time (s)ammeter reading (A)net current (A)voltage (V)225current (A)1.201.2001.2041.60.441.40.2Sample 1Sample 281.40.281.20jaw crusher opening (mm)84121.80.6121.60.4mean particle size of product (mm)7.154.725161.50.3161.20total current (A)11.221.6201.50.3201.40.2# of 4-second interval ammeter readings57104241.40.2241.80.6power required (W)44.210526315846.7307692308281.60.4281.60.4net energy requirement (J)176.8421052632186.9230769231321.80.6321.60.4361.20361.40.2401.40.2401.40.2441.40.2441.40.2481.20481.40.2521.60.4521.30.1561.20561.40.2601.40.2601.60.4641.60.4641.80.6681.40.2681.80.6721.60.4721.20761.80.6761.40.2801.40.2801.60.4841.20841.40.2881.40.2881.40.2921.40.2921.60.4961.30.1961.30.11001.40.21001.80.61041.30.11041.40.21081.40.21081.30.11121.60.41121.30.11161.201161.40.21201.40.21201.60.41241.30.11241.40.21281.201281.201321.201321.60.41361.40.21361.40.21401.30.11401.60.41441.60.41441.50.31481.40.21481.60.41521.40.21521.50.31561.201561.80.61601.40.21601.40.21641.50.31641.201681.60.41681.60.41721.201721.40.21761.201761.40.21801.201801.80.61841.201841.60.41881.201881.40.21921.201921.40.21961.60.41961.40.22001.40.22001.60.42042.00.82041.202081.40.22081.60.42121.30.12121.40.22161.202161.30.12201.202201.30.12241.202241.40.22281.202281.20total current11.22321.40.22361.60.42401.202441.40.22481.60.42521.202561.50.32601.202641.30.12681.202721.60.42761.40.22801.40.22841.202881.202921.40.22961.203001.80.63041.203081.60.43121.30.13161.30.13201.40.23241.30.13281.60.43321.60.43361.30.13401.40.23441.203481.30.13521.60.43561.203601.40.23641.203681.40.23721.203761.40.23801.203841.203881.203921.40.23961.204001.204041.40.24081.30.14121.204161.20total current21.6

Objective 2Objective 2:Compare the actual relative energy consumption with theoretical relative energy consumption estimated using Kick's Law and Rittinger's Lawms word file (sizereductiondraft)

Objective 3Objective 3:Determine how product size distribution varies with respect to the size of the outlet screen of the hammer mill and with respect to the throat opening of the jaw crusher.mass of quartered sample before screening (g)503.64Data for screen analysis of sample 1 (for jaw crusher with an opening of 8 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

10265.36269.343.980.00790.0900.000020.18323.77324.320.550.00110.2150.007930.25308.68309.290.610.00120.3500.009040.45326.88327.420.540.00110.6500.010250.85381.10387.686.580.01312.0000.011363.15447.84488.1140.270.07994.7250.024376.3456.82908.16451.340.89577.1500.1043total503.87mass of quartered sample before screening (g)501.21Data for screen analysis of sample 2 (for jaw crusher with an opening of 4 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

1 (bottom)0265.43274.559.120.01820.0900.000020.18323.84325.912.070.00410.2150.018230.25308.72312.263.540.00710.3500.022340.45326.81333.486.670.01330.6500.029450.85381.12451.4970.370.14042.0000.042763.15447.84716.56268.720.53634.7250.183276.3456.80597.35140.550.28057.1500.7195total501.04mass of sample before screening (g)393.41Data for screen analysis of sample 1 (for hammer mill with an outlet screen of 10 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

10265.36335.9970.630.17950.0900.000020.18323.77338.6414.870.03780.2150.179530.25308.70333.9125.210.06410.3500.217340.45326.88361.8734.990.08890.6500.281450.85381.11513.35132.240.33612.0000.370363.15447.87548.69100.820.25634.7250.706576.3456.82471.4914.670.03737.1500.9627total393.43mass of sample before screening (g)388.14Data for screen analysis of sample 2 (for hammer mill with an outlet screen of 6 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

10265.36349.5984.230.21700.0900.000020.18323.80341.9218.120.04670.2150.217030.25308.72340.0631.340.08070.3500.263740.45326.83372.9246.090.11870.6500.344450.85381.11545.04163.930.42232.0000.463263.15447.89491.6943.800.11284.7250.885576.3456.82457.460.640.00167.1500.9984total388.15mass of sample before screening (g)394.21Data for screen analysis of sample 3 (for hammer mill with an outlet screen of 0.75 mm)isieve opening, Dpi (mm)mass of tray (g)mass of tray after screening (g)mass of sample after screening (g)mass fraction retained, xi (grams sample per tray/grams of total sample)ave. particle diameter in increment, Dpi (mm)cumulative fraction smaller than Dpi

10265.45493.88228.430.57960.0900.000020.18323.88364.6340.750.10340.2150.579630.25308.72377.6468.920.17490.3500.683040.45326.84381.4054.560.13840.6500.857950.85381.14382.341.200.00302.0000.996463.15447.91448.100.190.00054.7250.999476.3456.84456.880.040.00017.1500.9999total394.09