Download - energi Terbarukan
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TEKNOLOGI KONVERSI ENERGI BIOMASSA
AGUS HARYANTO
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KLASIFIKASI
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ANAEROBIC DIGESTION
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DESIGN PARAMETERS
• Total solid (TS) : Most favorable is 8%• Temperature: Mesophilic 20 to 35o C• pH value : Neutral (6.8 to 7.2)• C/N ration : Ranges from 20:1 to 30:1• Hydraulic retention time (HRT) : > 20 days
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HRT vs. Temperature
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BIODIESEL
Agus Haryanto
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BIODIESEL
Raw Materials:• Jarak Pagar (India, Indonesia)• Nyamplung (Indonesia)• Kelapa sawit (Indonesia, Malaysia)• Minyak kedelai (AS)• Rapeseed (Eropah)• Lemak hewan, minyak jlantah, algae
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STATISTIC
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Transesterification Process (Go to Movie)
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ENERGI ANGIN
AGUS HARYANTO
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Energi Angin
E mV12
2
E Vv 12
2
P V AV AVth ( . ) . . .12
12
2 3
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Harvestable Power
V = (V + Ve)/2
P AV V V V AV V
V Ve ee
e
. . ( ). . .( ) ( )2
2
PAV
e ..
( )( )3
2
41 1 = Ve /V, max = 1/3
the PVAVAP 593.0)..21(593.0)
278(.. 33
max
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Karakteristik Torsi dan Daya
• Rotor berputar dengan kecepatan sudut = 2.RPS
• Daya yang diperoleh rotorP = T
Kurva Torsi vs. KecepatanKurva Daya vs. Kecepatan
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Kurva Daya dan Torsi
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Koefisien Tak Berdimensi
Daya mekanis, Pmech = Cp.Pair
3..)2/1(
VA
PCp mech
•nisbah kecepatan-lokal (r)
•tip speed ratio ()
•Koefisien Torsi (CT)
•Rasio daya (Cp)
ruV
rV
.
. . ..
RV
R nV
260
2...)2/1(
VRA
TCpCT
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Karakteristik Cp- dan CT-
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Karakteristik Berbagai Tipe Kincir Angin
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Daya (listrik) yang tersedia (W):
Dengan menganggap koefisien daya sedang Cp = 0,3 dan efisiensi total o = 0,6, maka kita memperoleh kaidah praktis (dengan densitas udara = 1,2 kg/m3):
P Cp V Aa o . . . . . 12
3
P V Aa 01 3. .