Pemanfaatan DEC Sebagai Agen Peningkat Performa Pembakaran Gasoline Dan Agen Penurun Tekanan Uap Light Naphtha

Gautama, Komang Agus Ravey and Lu, Joy Deryl (2018) Pemanfaatan DEC Sebagai Agen Peningkat Performa Pembakaran Gasoline Dan Agen Penurun Tekanan Uap Light Naphtha. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk memanfaatkan Diethyl Carbonate (DEC) sebagai agen peningkat performa pembakaran gasoline dan agen penurun tekanan uap light naphtha. Eksperimen pengukuran tekanan uap campuran light naphtha + DEC dilakukan dengan menggunakan ebulliometer sederhana yang dikembangkan oleh Oktavian et al, (2013) yang kemudian divalidasi oleh Wibawa et al (2015). Sedangkan eksperiment uji performa pembakaran dilakukan menggunakan mesin motor Honda CB150R dengan putaran dan campuran bahan bakar yang bervariasi, sedangkan untuk mengetahui kadar emisi gas buang hasil pembakaran dilakukan dengan menggunakan gas analyzer. Validasi alat ebulliometer dilakukan dengan membandingkan data tekanan uap DEC, aseton dan etanol murni hasil eksperimen dengan data literatur. Data percobaan tekanan uap didapatkan dengan pengukuran secara isotermal dimana variable percobaan yang digunakan adalah fraksi volume campuran light naphtha + DEC dan variabel suhu. Pada eksperimen uji performa pembakaran campuran bahan bakar gasoline + DEC, variable yang digunakan adalah komposisi campuran pertamax, DEC, dan additive pembanding yang lain (DMC dan Etanol) serta variasi putaran mesin (RPM). Berdasarkan hasil percobaan didapatkan campuran light naphtha +DEC yang paling efektif adalah campuran light naphtha + DEC 26%vol yang didasarkan pada nilai tekanan uap dan RON campuran. Sedangkan untuk percobaan uji performa pembakaran didapatkan komposisi paling efektif adalah campuran pertamax + 10% DEC (DEC10) dilihat dari hasil kadar emisi (CO dan HC), konsumsi bahan bakar dan laju udara masuk untuk pembakaran. ========================================================= The objective of this research is to utilize DEC as additive to increase gasoline combustion performance and light naphtha vapor pressure decreasing agent. Vapor pressure measurement experiment from binary mixture light naphtha + DEC was done by using ebulliometer which is developed by Oktavian, et al (2013) which has been validated by Wibawa et al (2015). While combustion performance test was done by using Honda CB150-R engine with variation of speed and composition and then using gas analyzer to analyze the composition of emitted gas. Ebulliometer apparatus was validated by comparing vapor pressure experiment data of ethanol, acetone dan DEC with calculation data from literature. Data from the experiment are validated by using vapor pressure properties of pure DEC, DMC and Ethanol by using ebulliometer. Vapor pressure data gathered by isothermal measurement vapor pressure measurement. Variables in this experiment consist of light naphtha and DEC for various composition and temperature. For combustion experiment, experiment data is gathered by combusting variables consist of various composition of Pertamax, DEC, and other comparative additives (DMC, ethanol) and variation of engine speed (RPM). Based on experimental data, mixture of Light Naphtha + DEC 26%vol give the most effective result based on the value of vapor pressure and RON of the mixture. While for gasoline combustion performance experiment, the most effective results were achieved on the combustion of 10%vol DEC + gasoline composition based on emission levels (CO and HC), fuel consumption and air intake rate for combustion.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Combustion performance; Diethyl carbonate; gasoline; vapor pressure; ebulliometer; light naphtha
Subjects: T Technology > TP Chemical technology > TP343 Liquid and gaseous fuel
Divisions: Faculty of Industrial Technology > Electrical Engineering > 20201-(S1) Undergraduate Thesis
Depositing User: Komang Agus Ravey Gautama
Date Deposited: 21 Jun 2021 02:09
Last Modified: 21 Jun 2021 02:09
URI: https://repository.its.ac.id/id/eprint/54436

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