?url_ver=Z39.88-2004&rft_id=1417031095&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Dinamika+Model+Matematika+Reaksi+Oksidasi+Menggunakan+Reaktor+Aliran+Bolak-Balik+dengan+Pendekatan+Numerik%0D%0A&rft.creator=Rahmad+Riyanto%2C+1417031095&rft.subject=QA+Mathematics&rft.description=Dinamika+reaksi+oksidasi+metana+menggunakan+reaktor+aliran+bolak-balik+(RABB)+dapat+digambarkan+dalam+bentuk+persamaan+difusi+-+konveksi+yang+mengandung+suku+tak+linear+terkait+laju+reaksi+dan+dilengkapi+dengan+syarat+awal+dan+syarat+batas+tertentu.+Pada+penelitian+ini%2C+model+homogen+semu+1+dimensi+digunakan+untuk+mempelajari+profil+dinamika+variabel+tak+bebas+temperatur+dan+konsentrasi+gas+umpan+pada+proses+oksidasi+tersebut+melalui+simulasi+numerik.+Beberapa+variasi+konsentrasi+gas+umpan+dan+parameter+operasi+RABB+disimulasikan+untuk+melihat+pengaruhnya+terhadap+profil+temperatur+dan+konsentrasi+gas+umpan.+Berdasarkan+hasil+simulasi+numerik+menunjukkan+bahwa+profil+temperatur+dengan+konsentrasi+gas+umpan+fungsi+periodik%2C+konstan+maupun+square+wave+secara+kualitatif+hampir+sama.+Namun+untuk+profil+temperatur+dengan+fungsi+periodik+dan+square+vawe+akan+mengalami+naik+turun+dikarenakan+terdapat+konsentrasi+gas+umpan+tinggi+dan+rendah+yang+masuk+ke+dalam+reaktor.+Besar+kecilnya+gas+umpan+sangat+berpengaruh+pada+profil+temperatur+yang+berakibat+lamanya+pengoperasian+reaktor.+Parameter+operasi+RABB+waktu+balikan+kecil%2C+laju+alir+gas+umpan+sedang+dan+luas+dinding+penampang+reaktor+kecil+akan+membuat+reaktor+dapat+beroperasi+lebih+lama.%0D%0A%0D%0A%0D%0AKata+kunci+%3A+reaksi+oksidasi%2C+persamaan+difusi+-+konveksi%2C+reaktor+aliran+bolak-balik%2C+waktu+balikan%0D%0A%0D%0A%0D%0AThe+dynamics+of+oxidation+reaction+methane+using+reverse+flow+reactor+(RFR)+are+given+by+a+set+of+convection+-+diffusion+equation+form+that+containing+the+non-linear+term+corresponding+to+the+reaction+rate+and+provided+with+certain+initial+and+boundary+conditions.+On+this+research%2C+1-D+pseudo-homogeneous+model+used+to+study+the+dynamic+profiles+of+dependent+variable+temperature+and+feed+concentration+on+oxidation+process+using+numeric+simulation+approach.+Some+variations+of+feed+concentration+function+and+RFR+operation+parameter+simulated+to+see+the+influence+towards+temperature+and+feed+concentration+profile.+The+result+of+numeric+simulation+shows+that+the+temperature+profile+with+constant%2C+periodic+and+square+vawe+function+of+feed+concentration%2C+qualitatively+almost+the+same.+But+for+temperature+profile+with+periodic+and+square+vawe+function+will+have+fluctuation+because+low+and+high+feed+concentration+that+enter+the+reactor.+The+lower+and+faster+superficial+gas+velocity+is+very+influence+to+temperatur+profile+which+consequence+the+duration+of+reactor+operation.+RFR+operation+parameter+small+switching+time%2C+medium+gas+velocity+and+small+specific+reactor+wall+surface+will+make+the+reactor+operated+longer.%0D%0A%0D%0AKeywords+%3A+oxidation+reaction%2C+convection+-+diffusion+equation%2C+reverse+flow+reactor%2C+switching+time&rft.publisher=Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam&rft.date=2018-07-19&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F32609%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F32609%2F2%2FSKRIPSI%2520TANPA%2520PEMBAHASAN.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F32609%2F3%2FSKRIPSI%2520FULL.pdf&rft.identifier=++Rahmad+Riyanto%2C+1417031095++(2018)+Dinamika+Model+Matematika+Reaksi+Oksidasi+Menggunakan+Reaktor+Aliran+Bolak-Balik+dengan+Pendekatan+Numerik.++Fakultas+Matematika+dan+Ilmu+Pengetahuan+Alam%2C+Universitas+Lampung.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F32609%2F