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Peningkatan Prestasi Motor Bensin 4-Langkah Menggunakan Zeolit Alam Lampung Teraktivasi Fisik

Wardono, Herry (2006) Peningkatan Prestasi Motor Bensin 4-Langkah Menggunakan Zeolit Alam Lampung Teraktivasi Fisik. In: SNTTM V, 21-23 November 2006, Universitas Indonesia, Depok, Jawa Barat.

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    Abstract

    Automotive air pollution and energy crisis are now the main problem which is necessarily to cope with. Petrol engines are more wasteful and contribute higher air pollution compare with diesel engines.Qualified (oxygen-rich) combustion air is one of the factors being able to enhance petrol engine performance. The existing air filter can merely adsorb rough particles (such as dust), but it cannot adsorb nano particles (such as nitrogen and H2O). Abundant natural zeolite has an ability to adsorb nano particles. The use of zeolite as air adsorbent to produce higher oxygen concentration in air, has been performed by many researchers. A four-stroke petrol engine performance was successfully enhanced by putting pure natural zeolites prior to the existing air filter. This means that the zeolites could actually produce oxygen-rich combustion air at the engine operations. The ability of the zeolites in adsorbing nitrogen and H2O can still be increased i.e by heating the zeolites in an oven (physical activation). Experiments using physical activated zeolites were performed in a four-stroke petrol engine, single cylinder. From the results, it is found that there is a significant increase of the engine performance at operations using physical activated zeolites. Higher amount of zeolites used led to higher engine performance. This means the use of 200 gram of zeolites gave the highest engine performance. Meanwhile, higher engine speed did not always guarantee to give higher engine performance. The best result occurred at the engine operation of 2000 rpm, brake power increased as big as 0,127 kW (5,93%) while bsfc reduced as big as 0,0216 kg/kWh (8,97%). As a whole, the average increase of brake power was 0,1517 kW (5,55%) while the average reduction of bsfc was 0,0196 kg/kWh (7,64%). These results show that engine operations using physical activated zeolites give higher engine performance compare with using pure natural zeolites. Kata kunci : Adsorption by zeolite, Activated zeolite, Air combustion treatment.

    Item Type: Conference or Workshop Item (Speech)
    Subjects: T Technology > TJ Mechanical engineering and machinery
    Divisions: Fakultas Teknik > S1 Teknik Mesin
    Depositing User: Admin Fakultas Teknik
    Date Deposited: 26 Aug 2013 15:19
    Last Modified: 26 Aug 2013 15:19
    URI: http://repository.unila.ac.id/id/eprint/726

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