?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+PUTARAN+DAN+LAMA+WAKTU+TOREFAKSI+TERHADAP+%0D%0AKUALITAS+PELET+TANDAN+KOSONG+KELAPA+SAWIT%0D%0A&rft.creator=RAYA+NITA%2C+1514071004&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Indonesia+memiliki+potensi+tanaman+kelapa+sawit+yang+berlimpah.+Limbah+tandan+%0D%0Akosong+kelapa+sawit+(TKKS)+dapat+dimanfaatkan+untuk+dijadikan+energi+terbarukan%0D%0Aberupa+pelet.++Bioenergi+pelet+TKKS+memiliki+kendala+untuk+digunakan+sebagai+%0D%0Abahan+bakar+yaitu+pada+proses+penyimpanan+pelet+bisa+mengalami+dekomposisi+%0D%0Aanaerobik+yang+akan+meningkatkan+suhu+dan+bisa+memicu+terjadinya+kebakaran+%0D%0Abahan.+Selain+itu%2C+nilai+kalor+yang+rendah+memerlukan+suatu+metode+untuk%0D%0Ameningkatkan+kualitas+pelet+TKKS+melalui+torefaksi%2C+yang+merupakan+suatu+%0D%0Aproses+degradasi+termal+dengan+laju+pemanasan++rendah.++Torefaksi+dilakukan+pada+%0D%0Atemperatur+200%E2%80%93300%C2%B0C+dengan+membatasi+udara+pada+tabung+torefaksi.+Pada+%0D%0Aproses+torefaksi%2C+putaran+dan+lama+waktu+penting+untuk+diperhatikan+karena%0D%0Amemberikan+pengaruh+terhadap+kualitas+pelet+yang+dihasilkan.++Tujuan+dari+%0D%0Apenelitian+ini+adalah+mengetahui+pengaruh+RPM+dan+lama++waktu+proses+%0D%0Atorefaksi+terhadap++kualitas+pelet+seperti+kadar+air%2C+kadar+abu%2C+nilai+kalor+dan%0D%0Akandungan+ligneselulosa.+++%0D%0APenelitian+dilakukan+pada+bulan+Juni+sampai+dengan+Agustus+2019+di+Lab.+Daya+%0D%0AAlat+dan+Mesin+Pertanian%2C+Jurusan+Teknik+Pertanian%2C+Fakultas+Pertanian%2C+%0D%0AUniversitas+Lampung.+Eksperimen+dilakukan+dengan+kombinasi+perlakuan+lama+%0D%0Awaktu+torefaksi+(20%2C+30%2C+dan+45+menit)+dan+kecepatan+putar+reaktor+torefaksi+(16%2C+%0D%0A31%2C+37+RPM)+dengan+3+kali+ulangan.+Setiap+unit+percobaan+menggunakan+300+%0D%0Agram+pelet+yang+dipanaskan+dalam+reaktor+torefaksi+yang+diisi+dengan+1%2C5+kg+%0D%0Apasir.+Pengukuran+dilakukan+terhadap+bulk+density%2C+massa+density%2C+rendemen+%0D%0Atorefaksi%2C+nilai+kalor%2C+kadar+air%2C+kadar+abu%2C+kadar+volatil%2C+hidropobicity+dan+%0D%0Akandungan+ligneselulosa.%0D%0AHasil+dari+penelitian+ini+adalah+proses+torefaksi+menghasilkan+nilai+rendemen+%0D%0Aantara+80%2C11%25+-+87%2C11%25%2C+nilai+rata-rata+bulk+density+pada+pelet+TKKS+setelah+%0D%0Aproses+torefaksi+sebesar+0%2C35g%2Fml+sedangkan+sebelum+torefaksi+sebesar+0%2C43+%0D%0Ag%2Fcm%0D%0A3%0D%0A%2C+nilai+massa+density+pada+pelet+TKKS+sebelum+torefaksi+sebesar+1%2C49+g%2Fcm%0D%0A3%0D%0A%2C+%0D%0Asetelah+torefaksi+nilai+massa+density+turun+menjadi+1%2C25+g%2Fcm%0D%0A3%0D%0A.++Nilai+kadar+air+%0D%0Arata-rata+pelet+torefaksi+sebesar+0%2C40%25%2C+turun+dari+kadar+air+pelet+TKKS+sebelum+%0D%0Atorefaksi+sebesar+6%2C86%25.+Kandungan+kadar+abu+pelet+TKKS+sebelum+ditorefaksi+%0D%0Asebesar+12%2C75%25+setelah+proses+torefaksi+nilai+rata-rata+kadar+abu+mencapai+16%2C36%25+%0D%0Adan+kandungan+volatile+sebelum+torefaksi+sebesar+87%2C24%25+dan+setelah+torefaksi+%0D%0Asebesar+83%2C63%25.+Kandungan+hemiselulosa+pada+pelet+TKKS+sebelum+torefaksi+%0D%0Asebesar+26%25%2C+setelah+proses+torefaksi+kandungan+hemiselulosa+menurun+sebesar+%0D%0A25%25-17%25.++Pelet+sebelum+torefaksi+pelet+hancur+dalam+waktu+1+menit+di+dalam+air+%0D%0Adan+setelah+torefaksi+pelet+tidak+hancur+dalam+waktu+24+jam+di+dalam+air.%0D%0AKata+kunci+%3A+kelapa+sawit%2C+limbah%2C+pelet%2C+TKKS%2C+torefaksi+%0D%0A%0D%0A%0D%0AIndonesia+has+abundant+oil+palm+potential.+Oil+palm+empty+fruit+bunches+%0D%0A(OPEFB)+can+be+used+as+renewable+energy+in+the+form+of+pellets.+Bioenergy+of+%0D%0AOPEFB+pellets+has+problems+to+be+used+as+fuel%2C+namely+during+storage+pellets+%0D%0Amay+undergo+anaerobic+decomposition+which+will+increase+the+temperature+and+%0D%0Acan+trigger+a+fire+of+the+material.+In+addition%2C+the+low+heating+value+requires+a+%0D%0Amethod+to+improve+the+quality+of+OPEFB+pellets+through+torrefaction%2C+which+is+a+%0D%0Aprocess+of+thermal+degradation+with+a+low+heating+rate.+Torrefaction+is+carried+%0D%0Aout+at+a+temperature+of+200-300+%C2%B0+C+by+restricting+the+air+in+the+torrefaction+%0D%0Areactor.+In+the+torrefaction+process%2C+rotation+and+duration+are+important+to+%0D%0Aconsider+because+they+have+an+influence+on+the+quality+of+the+pellets+produced.+%0D%0AThe+purpose+of+this+study+was+to+determine+the+effect+of+reactor+speed+and+%0D%0Aduration+of+the+torrefaction+process+on+the+quality+of+pellets+such+as+water+%0D%0Acontent%2C+ash+content%2C+calorific+value%2C+hydrophobicity+and+lignocellulose+content.+%0D%0AThe+study+was+conducted+in+June+to+August+2019+in+the+Lab.+Agricultural+Power+%0D%0Aand+Machinery%2C+Department+of+Agricultural+Engineering%2C+Faculty+of+Agriculture%2C+%0D%0AUniversity+of+Lampung.+Experiment+was+conducted+with+treatment+combination+of+%0D%0Atorrefaction+duration+(20%2C+30%2C+and+45+minutes)+and+rotational+speed+of+the+reactor+%0D%0A(16%2C+31%2C+37+RPM)+with+3+replications.+Each+experimental+unit+used+300+grams+of+%0D%0Apellets+that+are+heated+to+temperature+200-250%0D%0Ao%0D%0AC+in+a+reactor+filled+with+1%2C5+kg+of+%0D%0Asand.+Measurements+were+made+for+bulk+density%2C+mass+density%2C+torrefaction+yield%2C+%0D%0Apellet%E2%80%99s+heating+value%2C+moisture+content%2C+ash+content%2C+volatile+content%2C+%0D%0Ahydropobicity+and+lignocellulose+content.%0D%0AThe+results+of+this+study+show+that+yield+of+torrefaction+process+are+80.11%25+-87.11%25.+The+average+bulk+density+of+OPEFB+pellets+after+the+torrefaction+process+%0D%0Ais+0.35+g%2Fml+while+before+the+torrefaction+is+0.43+g%2Fcm%0D%0A3%0D%0A%2C+the+mass+density+of%0D%0AOPEFB+pellets+before+torefaction+was+1.49+g%2Fcm%0D%0A3%0D%0A%2C+after+torrefaction+the+mass+%0D%0Adensity+value+dropped+to+1.25+g%2Fcm%0D%0A3%0D%0A.+The+average+water+content+of+the+torrefied+%0D%0Apellet+was+0.40%25%2C+down+from+the+moisture+content+of+the+OPEFB+pellet+before+the+%0D%0Atorrefaction+of+6.86%25.+The+ash+content+of+OPEFB+pellet+before+torrefaction+was+%0D%0A12.75%25+and+after+the+torrefaction+process+increase+to+16.36%25.+The+volatile+%0D%0Acontent+before+torrefaction+was+87.24%25+and+after+torrefaction+was+83.63%25.+%0D%0AHemicellulose+content+in+OPEFB+pellets+before+torrefaction+is+26%25%2C+and+after+%0D%0Atorrefaction+decreased+to+25%25-17%25.+Pellets+before+torrefaction+are+destroyed+%0D%0Awithin+1+minute+in+water+and+after+torrefaction+pellets+withstand+within+24+hours+%0D%0Ain+the+water.%0D%0AKeywords%3A+oil+palm%2C+OPEFB%2C+pellets%2C+torrefaction%2C+waste.+&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58466%2F1%2F1.%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58466%2F2%2F2.%2520SKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F58466%2F3%2F3.%2520SKRIPSI%2520FULL%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++RAYA+NITA%2C+1514071004++(2019)+PENGARUH+PUTARAN+DAN+LAMA+WAKTU+TOREFAKSI+TERHADAP+KUALITAS+PELET+TANDAN+KOSONG+KELAPA+SAWIT.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F58466%2F