perhitungan fluidisasi
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Perhitungan Penentuan Neraca Massa1. Mencari Rh dan YRh dan Y diperoleh dari psikrometrik chart. Pada t = 5 menit, Tw = 23oC, Td = 34oC diperoleh Rh 40% dan Y = 0,0132.2. Mencari Vh (Volume jenis udara)Pada t = 5 menit, Tin = 57,1oC.Vh = 22,4 x x x ( + x Y )= 22,4 x x x ( + x 0,0132 ) = 0,7949 m3/kg dry air.3. Mencari Luas Permukaan Luas permukaan = r2= 3,14 x (9,25 cm)= 268,6662 cm2 = 0,0269 m24. Mencari Laju Alir Udara Masuk (Gu1)Pada t = 5 menit, v = 8,55 m/s, Vh = 0,7949 m3/kg dry airGu1 = = x 3600 s = 1041,62 kg / menit5. Menghitung Neraca MassaNeraca massa: Gu1 ( y - yo ) t = W . Fy-y0 = 0,0148 0,0132 = 0,0016t = 5 menit = 0,0833 jamW = 0,3925 kgGu1 ( y - yo ) t = W . F F= = = 0,3538 Kg.air/Kg.UK6. Data Rh dan Y udara masuk dan udara keluarRUN 1Waktu (menit)Udara MasukUdara Keluar
T Masuk (C)T Kering (C)T Basah (C)RhYT Keluar(0C)T Kering(0C)T Basah(0C)RhY
029,92924660,017253123510,0144
531,330,521430,0182833,522,5400,013
1031,729,521470,01222935,523350,0125
1531,93021450,0123037,523,5280,012
2032,030,522490,0132303724310,013
2532,230,521430,0183136,522,5300,0115
3032,430,521430,0183137,522,5280,0114
3532,330,521430,0183137,52329,50,0119
4032,330,521,5460,0125313824310,013
4532,330,521,5460,0125313823,5300,0125
5032,33021450,012313823280,0116
RUN 2Waktu (menit)Udara MasukUdara Keluar
T Masuk (C)T Kering (C)T Basah (C)RhYT Keluar(0C)T Kering(0C)T Basah(0C)RhY
0612924660,019373724350,0135
550,23323420,014393825350,0148
10493222,5450,0135433824310,013
1561,23223470,039444225250,013
205531,522430,0136484425210,012
255531,525600,012504726190,0126
3057,334,523380,013504826180,012
35553423400,0132494725170,009
40563222420,0122484726190,0125
4556,43322,5520,162494725160,0109
5055,23723280,0115504625170,0111
RUN 3Waktu (menit)Udara MasukUdara Keluar
T Masuk (C)T Kering (C)T Basah (C)RhYT Keluar(0C)T Kering(0C)T Basah(0C)Rh
Y
0543423400,0132312823660,0158
557,133,523410,0132363825350,0148
1056,63523,5380,0135414126,5330,016
15533623330,0124464225,5270,0138
20543623330,01244743,526,5270,015
2553,73522,5350,0125494626200,013
305635,523350,0125484626200,013
3553,536,523310,0122494725180,0109
4056,53623330,0124504626,5220,0135
4556,23422,5380,01255146,526,5210,0135
5054,53723300,012514526220,0132
7. Data Vh, v, Gu1, dan FRUN 1Waktu (menit)T Masuk (C)YYVh(m3/kg dry air)v(m/s)G(kg / jam)F(Kg.air/Kg.UK)
029,90,0170,01440,73373710,281212,5220
531,30,0180,0130,73828410,841270,699-1,32269
1031,70,01220,01250,73254110,881285,3870,160557
1531,90,0120,0120,7327910,711264,8730
2032,00,01320,0130,73442110,571245,566-0,20744
2532,20,0180,01150,74046810,861269,289-8,58792
3032,40,0180,01140,74095310,781259,114-10,3802
3532,30,0180,01190,7407110,811263,032-11,2276
4032,30,01250,0130,73433211,091307,0011,088379
4532,30,01250,01250,7343329,061067,7580
5032,30,0120,01160,7337529,321099,268-0,91539
RUN 2Waktu (menit)T Masuk (C)YYVh(m3/kg dry air)v(m/s)G(kg / jam)F(Kg.air/Kg.UK)
0610,0190,01350,81163,59451,25950
550,20,0140,01480,77924,84633,66590,084455
10490,01350,0130,77576,38839,0607-0,13979
1561,20,0390,0130,83754,43539,6415-7,01253
20550,01360,0120,79032,63339,5017-0,36199
25550,0120,01260,78833,42442,59780,22121
3057,30,0130,0120,79514,51578,6808-0,57845
35550,01320,0090,78983,55458,5520-2,24601
40560,01220,01250,79103,48448,85190,179469
4556,40,1620,01090,97943,62463,4133-3,68266
5055,20,01150,01110,78823,2414,2016-0,27602
RUN 3Waktu (menit)T Masuk (C)YYVh(m3/kg dry air)v(m/s)G(kg / jam)F(Kg.air/Kg.UK)
0540,01320,01580,78749,681190,52110,0000
557,10,01320,01480,79498,551041,66980,3539
1056,60,01350,0160,79409,281131,78721,2015
15530,01240,01380,78409,111125,27511,0034
20540,01240,0150,78648,311023,31942,2596
2553,70,01250,0130,78589,401158,42540,6149
30560,01250,0130,79139,291136,86570,7241
3553,50,01220,01090,78509,541176,9563-2,2739
4056,50,01240,01350,79248,911088,88052,0344
4556,20,01250,01350,79189,161120,27592,1407
5054,50,0120,01320,78719,101119,59902,8525
Laju Perpindahan MassaM = Gu (y-yo)RUN 1Waktu (menit)YYG (kg/jam)M(kg/jam)
00,01440,0171212,522-3,1526
50,0130,0181270,699-6,3535
100,01250,01221285,3870,3856
150,0120,0121264,8730,0000
200,0130,01321245,566-0,2491
250,01150,0181269,289-8,2504
300,01140,0181259,114-8,3102
350,01190,0181263,032-7,7045
400,0130,01251307,0010,6535
450,01250,01251067,7580,0000
500,01160,0121099,268-0,4397
RUN 2Waktu (menit)YYG (kg/jam)M (kg/jam)
00,01350,019451,2595-2,4819
50,01480,014633,66590,5069
100,0130,0135839,0607-0,4195
150,0130,039539,6415-14,0307
200,0120,0136339,5017-0,5432
250,01260,012442,59780,2656
300,0120,013578,6808-0,5787
350,0090,0132458,5520-1,9259
400,01250,0122448,85190,1347
450,01090,162463,4133-2,4561
500,01110,0115414,2016-0,1657
RUN 3Waktu (menit)YYG (kg/jam)M (kg/jam)
00,01580,01321190,52113,095355
50,01480,01321041,66981,666672
100,0160,01351131,78722,829468
150,01380,01241125,27511,575385
200,0150,01241023,31942,66063
250,0130,01251158,42540,579213
300,0130,01251136,86570,568433
350,01090,01221176,9563-1,53004
400,01350,01241088,88051,197769
450,01350,01251120,27591,120276
500,01320,0121119,59901,343519
Menghitung kalor yang dilepaskan oleh steamQ=Massa steam x ( hg + hfg hf )Keterangan: massa steam yang digunakan = massa kondensatRUN 1 (tidak dapat dihitung karena tidak menggunakan steam)RUN 2WaktuM (kg/jam)T masuk (C)Hg (KJ/Kg)Hf (KJ/Kg)Hfg (KJ/Kg)Q (KJ/jam)
00,96612611,34255,322356,024523,5584
50,9650,22592,45210,172382,284573,9776
100,96492590,32205,152385,174579,5264
150,9661,22611,69256,152355,544522,6368
200,96552600,9230,232370,674551,6864
250,96552600,9230,232370,674551,6864
300,9657,32604,9239,842365,064540,9152
350,96552600,9230,232370,674551,6864
400,96562602,64234,412368,234547,0016
450,9656,42603,34236,082367,264545,1392
500,9655,22601,25231,072370,184550,7456
RUN 3WaktuM (kg/jam)T masuk (C)Hg (KJ/Kg)Hf (KJ/Kg)Hfg (KJ/Kg)Q (KJ/jam)
02,304542599,14226,052373,09656111,92
52,30457,12604,55239,012365,54654024,50
102,30456,62603,68236,922366,76654361,80
152,304532597,38221,872375,51656781,00
202,304542599,14226,052373,09656111,92
252,30453,72598,61224,82373,81656310,99
302,304562602,64234,412368,23654768,23
352,30453,52598,26223,962374,3656446,46
402,30456,52629,9236,52393,4661727,23
452,30456,22602,99235,252367,74654632,76
502,30454,52600,2228,142372,06655827,15
Menghitung panas yang dilepas oleh udara (Panas Sensibel)Q2= ( U1 x H1 ) ( U2 x H2 ) + ( U1 x 1 )
RUN 2WaktuUHUHQ
0451,259582990,4056822260975636,6
5633,665977,5852,18688722601407054
10839,060776886,64878222601887341
15539,641577,5906,54888722601182542
20339,501773,5785,7394872260723868
25442,597887841,7583922260961335,3
30578,680877,5754,62629222601283241
35458,552077,5882,2684872260995107,9
40448,851973,5849,7758922260969216,6
45463,413376793,89478722601013465
50414,201677,5813,5288872260897419,2
RUN 3WaktuUHUHQ
01190,521177,51191,04177,522602690537,43
51041,669877,51233,3318722602327603,40
101131,7872801009,92994,522602552943,76
151125,275177,51141,13389,522602528199,24
201023,319477,5956,208494,522602301647,44
251158,425476990,74959222602614932,76
301136,865777,51145,4819222602552039,38
351176,956377,5977,74798722602666071,38
401088,880577,51123,80194,522602439059,07
451120,2759761166,23794,522602506755,12
501119,599077,51140,7229222602512116,27
Menghitung kalor yang diterima oleh unggun (Panas Laten)RUN 1Waktu (menit)Laju massa unggun (kg/jam)Cp (KJ/Kg.C)T0(C)T(C)Q (KJ/jam)
00,48034,22529,99,8846
50,48034,22831,36,6570
100,48034,22931,75,4466
150,48034,23031,93,8328
200,48034,230324,0345
250,48034,23132,22,4207
300,48034,23132,42,8242
350,48034,23132,32,6224
400,48034,23132,32,6224
450,48034,23132,32,6224
500,48034,23132,32,6224
RUN 2Waktu (menit)Laju massa unggun (kg/jam)Cp (KJ/Kg.C)T0(C)T(C)Q (KJ/jam)
00,60024,2613760,50016
50,60024,250,23928,23341
100,60024,2494315,12504
150,60024,261,24443,35845
200,60024,2554817,64588
250,60024,2555012,6042
300,60024,257,35018,40213
350,60024,2554915,12504
400,60024,2564820,16672
450,60024,256,44918,65422
500,60024,255,25013,10837
RUN 3Waktu (menit)Laju massa unggun (kg/jam)Cp (KJ/Kg.C)T0(C)T(C)Q (KJ/jam)
00,47044,2543145,4406
50,47044,257,13641,6868
100,47044,256,64130,8206
150,47044,2534613,8298
200,47044,2544713,8298
250,47044,253,7499,2857
300,47044,2564815,8054
350,47044,253,5498,8906
400,47044,256,55012,8419
450,47044,256,25110,2735
500,47044,254,5516,9149
Efisiensi PengeringanRUN 2WaktuQQ unggunQEfisiensi
06785,337660,50016975636,60,701679
56860,966428,2334114070540,489619
106869,289615,1250418873410,364768
156783,955243,3584511825420,577342
206827,529617,645887238680,945639
256827,529612,6042961335,30,711524
306811,372818,4021312832410,532229
356827,529615,12504995107,90,687629
406820,502420,16672969216,60,705794
456817,708818,6542210134650,674554
506826,118413,10837897419,20,762099
RUN 3WaktuQQ unggunQEfisiensi
010935,1987245,440642690537,4310,4081
510900,4083241,6868482327603,3980,4701
1010906,0300830,8206082552943,7590,4284
1510946,3500813,829762528199,2440,4335
2010935,1987213,829762301647,4380,4757
2510938,516489,2856962614932,7650,4187
3010912,8038415,805442552039,3790,4282
3510940,77448,890562666071,3790,4107
4011028,787212,841922439059,0660,4527
4510910,5459210,2735362506755,1190,4357
5010930,452486,914882512116,2740,4354