Rancang Bangun Sistem Pengendalian RPM Berdasarkan Perbandingan Laju Aliran Bahan Bakar dan Udara (AFR) Biogas pada Kendaraan Bermotor

Joshua, Charles William (2019) Rancang Bangun Sistem Pengendalian RPM Berdasarkan Perbandingan Laju Aliran Bahan Bakar dan Udara (AFR) Biogas pada Kendaraan Bermotor. Diploma thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Seiring dengan perkembangan teknologi industri yang semakin pesat maka kebutuhan akan sumber energi yang terbarukan menjadi pertimbangan yang sangat penting. Pada umumnya sepeda motor yang digunakan di Indonesia masih menggunakan bahan bakar bensin. Namun ketersediaan bensin yang tidak dapat diperbarui, memerlukan bahan bakar alternatif lainnya seperti biogas yang mudah didapatkan. Pada Tugas Akhir ini, dilakukan perancangan sebuah sistem pengendalian RPM berdasarkan laju aliran bahan bakar dan udara (AFR) biogas pada kendaraan bermotor. Setelah dilakukan analisis dan pengujian didapatkan hasil data uji yang di mana semakin tinggi kecepatan yang dihasilkan oleh spark ignition engine kendaran bermotor, maka flowrate udara dan bahan bakar biogas akan meningkat. Untuk kecepatan maksimum yaitu 900 RPM didapatkan flowrate udara sebesar 2.8453 L/min, dan flowrate biogas sebesar 0.1651 L/min. Sedangkan untuk kecepatan minimum didapatkan flowrate udara 0.6808 L/min, dan flowrate biogas 0.0392 L/min. Hasil dari pengujian nilai kalibrasi didapatkan Ua1 (ketidakpastian pengukuran) = 1.0154, Ua2 (ketidakpastian regresi) = 2.7642, Ub1 (ketidakpastian resolusi) = 0.2887, Uc (ketidakpasian cakupan) = 2.9589 dan UExpand (ketidakpastian diperluas) = 7.6073.
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Along with the rapid development of industrial technology, the need for renewable energy sources is a very important consideration. In general, motorbikes used in Indonesia still use gasoline. However, the availability of non-renewable gasoline requires other alternative fuels such as biogas which is easily available. In this Final Project, the design of an RPM control system is based on the flow rate of fuel and air (AFR) of biogas in motorized vehicles. After analysis and testing, the results of the test data obtained where the higher the speed produced by the spark ignition engine motorized vehicles, the air flowrate and biogas fuel will increase. For the maximum speed of 900 RPM the air flowrate is 2.8453 L / min, and the biogas flowrate is 0.1651 L / min. As for the minimum speed, the air flowrate is 0.6808 L / min, and the biogas flowrate is 0.0392 L / min. The results of testing the calibration values are obtained Ua1 (measurement uncertainty) = 1.0154, Ua2 (regression uncertainty) = 2.7642, Ub1 (resolution uncertainty) = 0.2887, Uc (coverage uncertainty) = 2.9589 and UExpand (expanded uncertainty) = 7.6073.

Item Type:	Thesis (Diploma)
Uncontrolled Keywords:	Biogas, AFR, RPM, Mass flowrate
Subjects:	Q Science Q Science > QC Physics Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC271.8.C3 Calibration
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	JOSHUA CHARLES WILLIAM
Date Deposited:	14 Aug 2026 05:09
Last Modified:	14 Aug 2026 05:09
URI:	http://repository.its.ac.id/id/eprint/69754

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