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Article . 2020 . Peer-reviewed
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PENGARUH DENSITAS TERHADAP KECEPATAN PEMISAHAN BIODIESEL/GLISERIN

Authors: Drajat Indah Mawarni;

PENGARUH DENSITAS TERHADAP KECEPATAN PEMISAHAN BIODIESEL/GLISERIN

Abstract

Abstrak Kajian ini bertujuan untuk mengetahui tingkat kecepatan pemisahan (creaming velocity) antara dua fluida yang berfasa sama namun memiliki perbedaan densitas. Kajian ini dilakukan secara eksperimental dengan mengamati dan mengukur waktu pisah (settling time) pada tabung kaca dengan variasi diameter.Pengukuran waktu pisah dilakukan lima kali untuk setiap diameter tabung. Waktu pisah yang di peroleh digunakan sebagai dasar untuk menghitung diameter tetesan/droplet, konsentrasi tetesan, kecepatan pemisahan/creaming velocity dan Vstokes. Hasil perhitungan yang di peroleh diploting untuk membandingkan nilai konsentrasi tetesan (droplet consentration/Φ) terhadap kecepatan pemisahan (creaming velocity) pada campuran biodiesel/gliserin dan untuk mencari nilai Φc (fraksi volume fase biodiesel yang terdispersi rapat dalam gliserin/konsentrasi tetesan) dan k (konstanta pemisahan). Dari penelitian ini dapat disimpulkan bahwa semakin tinggi nilai konsentrasi tetesan (Φ) maka kecepatan pemisahannya (V cream) akan semakin berkurang dan dari persamaan Hunter bahwa V = Vstokes(1- )k.Φc , maka didapatkan nilai k dan Φc masing – masing adalah (5,1 ; 0,6 ; 1,2) dan (0,461 ; 0,9 ; 0,69) pada percobaan I, II, III dengan diameter tabung (1,3 ; 2,8 ; 3,9) cm.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
hybrid