Jurnal

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ANALISA NYALA API PEMBAKARAN BAHAN BAKAR BIOETANOL DENGAN MEMBANDINGKAN BAHAN BAKAR PREMIUM Dwi Nusantara Fatwa (1) , Ni Ketut Caturwati (2) , Agung Sudrajad (3) (1). MahasiswaJurusan Teknik Mesin Universitas Sultan Ageng Tirtayasa (2,3). DosenJurusan Teknik Mesin Universitas Sultan Ageng Tirtayasa Jl. Jend. Sudirman Km.3 Cilegon, 42435 email : [email protected] Abstract The enormous human needs of fossil fuel causes reserves of energy sources more and more reduced, so today the fuel derived from plants has developed, one of which is Bioethanol. The Government and citizen seemed blind that there are many sources of energy besides fossil fuels, and those fuel which can not be renewed already bind the society tightly so being sought and hunted despite the prices are always high. This research tests fuel bietanol as a diversification step of fuel because fuel combustion is scanty, so the analysis of flames on bioethanol fuel is still needed to do and compared with the premium fuel from the result of data testing and processing obtained through testing tool rotary cup oil burner, note that maximum temperature of premium occurs at an air flow of 5.55 m 3 / s and fuel rate 2.73 ml / min with a temperature of 981 ° C while for bioethanol is with an air flow 7, 76 m 3 / s and a fuel rate of 2.8 ml / min with a temperature of 616 o C. For maximum flame length of premium fuel is 49.418 cm while bioethanol fuel is 24.497 cm Keywords: Bioethanol, burner, characteristics, temperature, color. 1. PENDAHULUAN 1

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ANALISA NYALA API PEMBAKARAN BAHAN BAKAR BIOETANOLDENGAN MEMBANDINGKAN BAHAN BAKAR PREMIUM Dwi Nusantara Fatwa(1) Ni K!tut "aturwati (#) A$un$ Su%ra&a% (')(1).MahasiswaJurusan Teknik Mesin Universitas Sultan Ageng Tirtayasa(2,3).DosenJurusan Teknik Mesin Universitas Sultan Ageng TirtayasaJl. Jen. Suir!an "!.3 #ilegon, $2$3%e!ail & 'atwa1(2)ro*ket!ail.*o! A+stra*tThe enor!ous hu!an nees o' 'ossil 'uel *auses reserves o' energy sour*es !ore an!ore reu*e, so toay the 'uel erive 'ro! ,lants has evelo,e, one o' whi*h is -ioethanol. The.overn!ent an *iti/en see!e +lin that there are !any sour*es o' energy +esies 'ossil 'uels, anthose 'uel whi*h *an not +e renewe alreay +in the so*iety tightly so +eing sought an huntees,ite the ,ri*es are always high. This resear*h tests 'uel +ietanol as a diversification ste, o' 'uel+e*ause 'uel *o!+ustion is s*anty, so the analysis o' 'la!es on +ioethanol 'uel is still neee to oan *o!,are with the ,re!iu! 'uel 'ro! the result o' ata testing an ,ro*essing o+taine throughtesting tool rotary cup oil burner, note that !a0i!u! te!,erature o' ,re!iu! o**urs at an air 'lowo' %.%% ! 3 1 s an 'uel rate 2.23 !l 1 !in with a te!,erature o' 3(1 4 # while 'or +ioethanol is withan air 'low 2, 25 ! 3 1 s an a 'uel rate o' 2.( !l 1 !in with a te!,erature o' 515 o #. 6or !a0i!u!'la!e length o' ,re!iu! 'uel is $3.$1( *! while +ioethanol 'uel is 2$.$32 *!K!(w)r%s* Bioethanol, burner, characteristics, temperature, color.1+ PENDAHULUAN-ahan +akar !e!iliki ,eran yang,enting ala! kehiu,an !anusia. "risisenergi yangter7ai i unia, khususnyaari+ahan +akar 'osil yang +ersi'at takter+aharukan (non renewable) ise+a+kankarena !eni,isnya *aangan !inyak +u!i.8al ini !engaki+atkan !eningkatnya harga+ahan +akar !inyak (--M). "onisi ini akan!e!i*u kenaikan +iaya ,rouksi yang+era!,ak ,aa kenaikan +iaya hiu,. Selainitu 7uga --M +ersi'at tiak ra!ah lingkungan.9lehkarena itu,erlui*ari su!+er:su!+er+ahan +akar alternati' yang +ersi'atter+aharukan (renewa+le) an ra!ahlingkungan.ter!asuk ,aa siste! ,e!+akarani!ana siste! !e!iliki tingkat ko!,resi rasioyang tinggi sehingga !e!erlukan 7enis +ahan+akar yangsesuai agar ,e!+akaranterse+ut+er7alan engan se!,urna. ;e!ilihan 7enis+ahan +akar yang tiak sesuai, akan!engaki+atkan ,roses ,e!+akaran yang tiak1se!,urna. 8al terse+utse*aratiaklangsungakan !enghasilkan e'ek negati' +erantai ,aa!esin, !ulai ari ti!+ulnya kerak ,aa ruang+akar, tenaga !esin yang tiak !aksi!al,!eningkatnya e!isi gas +uang, +orosnyakonsu!si --M, yang ,aa akhirnya akan+eraki+at ,aa naiknya +iaya ,erawatan!esin. Dengan konisi ,erekono!ian