Analisis Performa Pengaruh Penggunaan Arang TongkoL Jagung dan Tanah Liat Pada Sistem Catalytic Converter Terhadap Kadar Gas Buang NOx

Fadhlan, Muhammad Farid (2026) Analisis Performa Pengaruh Penggunaan Arang TongkoL Jagung dan Tanah Liat Pada Sistem Catalytic Converter Terhadap Kadar Gas Buang NOx. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Emisi gas buang mesin diesel, khususnya nitrogen oksida (NOx), merupakan salah satu penyebab pencemaran udara yang berdampak terhadap kesehatan dan lingkungan sehingga diperlukan upaya untuk menurunkan kadar emisi tersebut. Penelitian ini bertujuan untuk menganalisis pengaruh penggunaan arang tongkol jagung dan tanah liat sebagai material catalytic converter terhadap emisi NOx pada mesin diesel Yanmar TF-85 MHDI. Penelitian dilakukan secara eksperimental menggunakan bahan bakar Dexlite (B0) dengan variasi putaran mesin 1600 rpm, 1800 rpm, dan 2000 rpm serta variasi beban generator 1000 W, 2000 W, 3000 W, dan 4000 W. Variasi catalytic converter yang digunakan meliputi diameter lubang 7 mm, 8 mm, dan 9 mm dengan komposisi material 100% tanah liat, 75% tanah liat : 25% arang tongkol jagung, dan 50% tanah liat : 50% arang tongkol jagung. Hasil penelitian menunjukkan bahwa penggunaan catalytic converter berbahan tanah liat dan arang tongkol jagung mampu menurunkan emisi NOx dibandingkan kondisi tanpa catalytic converter. Peningkatan diameter lubang dan proporsi arang tongkol jagung cenderung meningkatkan efektivitas penurunan emisi NOx. Variasi terbaik diperoleh pada diameter 9 mm dengan komposisi 50% tanah liat : 50% arang tongkol jagung yang menghasilkan rata-rata emisi NOx sebesar 314 ppm atau mengalami penurunan sebesar 59,80% dibandingkan kondisi tanpa catalytic converter sebesar 781 ppm. Berdasarkan hasil penelitian tersebut, kombinasi tanah liat dan arang tongkol jagung berpotensi digunakan sebagai material alternatif catalytic converter yang ramah lingkungan dan efektif dalam menurunkan emisi NOx pada mesin diesel.
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Diesel engine exhaust emissions, particularly nitrogen oxides (NOx), are one of the major contributors to air pollution and have adverse effects on human health and the environment. Therefore, efforts are needed to reduce these emissions. This study aims to analyze the effect of using corn cob charcoal and clay as catalytic converter materials on NOx emissions produced by a Yanmar TF-85 MHDI diesel engine. The experiment was conducted using Dexlite (B0) fuel with engine speed variations of 1600 rpm, 1800 rpm, and 2000 rpm, as well as generator load variations of 1000 W, 2000 W, 3000 W, and 4000 W. The catalytic converter variations consisted of hole diameters of 7 mm, 8 mm, and 9 mm with material compositions of 100% clay, 75% clay : 25% corn cob charcoal, and 50% clay : 50% corn cob charcoal. NOx emissions were measured using an Automotive Gas Analyzer. The results indicate that the application of catalytic converters made from clay and corn cob charcoal successfully reduced NOx emissions compared to the condition without a catalytic converter. Increasing the hole diameter and the proportion of corn cob charcoal tended to improve the effectiveness of NOx reduction. The best performance was obtained using a catalytic converter with a diameter of 9 mm and a composition of 50% clay : 50% corn cob charcoal, resulting in an average NOx emission of 314 ppm and a reduction efficiency of 59.80% compared to the condition without a catalytic converter, which produced an average NOx emission of 781 ppm. These findings indicate that the combination of clay and corn cob charcoal has the potential to be used as an environmentally friendly alternative catalytic converter material for reducing NOx emissions in diesel engines.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Arang Tongkol Jagung, Catalytic Converter, Emisi NOx, Mesin Diesel, Tanah Liat. Corncob Charcoal, Catalytic Converter, Clay, Diesel Engine, NOx Emissions
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ762.E93 Exhaust systems T Technology > TJ Mechanical engineering and machinery > TJ797 Diesel motor--Fuel systems--Testing. V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM276.A1 Fuel (Including supplies, costs, etc.) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering > VM731 Marine Engines
Divisions:	Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User:	Muhammad Farid Fadhlan
Date Deposited:	04 Aug 2026 01:43
Last Modified:	04 Aug 2026 01:43
URI:	http://repository.its.ac.id/id/eprint/142736

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