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PENGARUH PENGGUNAAN JENIS BUSI DAN VARIASI PENAMBAHAN CAMPHOR DALAM PREMIUM TERHADAP KADAR EMISI GAS CO DAN HC PADA SEPEDA MOTOR HONDA SUPRA X 125 PGM-FI TAHUN 2006 Cantyaji, Riwad Galang
Jurnal Nosel Vol 2, No 3 (2014): January
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The purpose of this research to investigate: (1) The effect of sparkplug types to exhaust gas emissions level of CO and HC on Honda Supra X 125 PGM-FI 2006motorcycle. (2) The effect of camphor addition in premium to exhaust gas emissions level of CO and HC on Honda Supra X 125 PGM-FI 2006motorcycle. (3) The interaction of sparkplug types and camphor addition in gasoline to exhaust gas emissions level of CO and HC on Honda Supra X 125 PGM-FI 2006motorcycle. (4) Exhaust gas emissions level of CO and HC on Honda Supra X 125 PGM-FI 2006motorcycle after changed the sparkplug type and camphor addition in premium. Based on experimental result can be concluded: (1) The using of sparkplug types and the variation of camphor addition in premium on Honda Supra X 125 PGM-FI 2006motorcycle gave the effect to exhaust gas emissions level of CO and HC. (2) The lowest exhaust gas emissions level of CO on standard sparkplug with 4 gram of camphor in 1 liter premium was 0.168%. The lowest exhaust gas emissions level of CO on platinum sparkplug with pure premium was 0.176%. The lowest exhaust gas emissions level of CO on iridium sparkplug with 4 gram of camphor was 0.176%. (3) The lowest exhaust gas emissions level of HC on standard sparkplug with 8 gram of camphor was 303 ppm. The lowest exhaust gas emissions level of HC on platinum sparkplug with pure premium was 311 ppm. The lowest exhaust gas emissions of HC level on iridium sparkplug with 8 gram of camphor was 380 ppm. (4) The lowest exhaust gas emissions level of CO and HC test with the interaction of sparkplug type and camphor addition in premium was using standard sparkplug and 4 gram of camphor adition in 1 liter premium.

PENGARUH VARIASI JENIS CETAKAN DAN PENAMBAHAN SERBUK DRY CELL BEKAS TERHADAP POROSITAS HASIL REMELTING AL-9%SI BERBASIS PISTON BEKAS Wibowo, Agung Dwi
Jurnal Nosel Vol 1, No 3 (2013): January
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The purpose of this study is to determine the effect of variations in the type of mold and the addition of dry cell powder marks on the porosity results remelting of Al-Si piston-based scars with 9% Si.This study used three different types of mold there were wet sand mold, dry sand mold and metal mold. Variations addition of dry cell powder is used as much as 0,30%, 0,50% and 0,70% by weight. Data obtained by calculating the porosity on each specimen and taking macro photos. From the calculated porosity created graphs to analyze. This research method using descriptive analysis. The results of this study show that the highest porosity occurs in the variations wet sand mold and additions powder dry cell by weight as much as 0.50% porosity by 3,1447%. The lowest porosity occur in variations metal molds and adding powder dry cell as much as 0,70% by the porosity of 0,1635%. Trought macro photos, metal mold can product smooth surface than sand mold. By this research, the use of metal molds can produce castings with a smooth surface and low porosity. In addition dry cell powder 0,30% and 0,50% led to increased porosity, while the addition cell dry powder 0,70% can reduce the porosity in castings results. This happens in all kinds of molds.

PENGARUH PEMANASAN BAHAN BAKAR BENSIN MELALUI PIPA KAPILER BERSIRIP TRANSVERSAL DI DALAM UPPER TANK RADIATOR DAN PUTARAN MESIN TERHADAP EMISI GAS BUANG CO DAN HC PADA MOBIL TOYOTA CORONA Saputro, Yudhi Agil
Jurnal Nosel Vol 3, No 4 (2015): April
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The purpose of this study were: (1) Investigate the effect of fuel heating gas through a capillary tube finned square transverse profile in the upper tank of the radiator exhaust emissions of CO and HC. (2) Investigate the effect of rotation of the engine to the exhaust emissions of CO and HC. (3) Investigate the both effect between of fuel heating gas through a capillary tube finned square transverse profile in the upper radiator tank and rotation the engine to the exhaust emissions of CO and HC. (4) Knowing the variation of finned pipe and engine speed was product the lowest of CO and HC exhaust emissions. The method used in this study was the experimental method. The experiment was conducted at Automotive Laboratory of Mechanical Engineering Study Program JPTK FKIP UNS Surakarta. The tools used to measure the levels of exhaust emissions of CO and HC were Gas Analyser merk Stargas type 898. Population in this study was a Toyota Corona and sample in this study was a Toyota Corona with engine number 12R1215172, with variation distance between the finned 10 mm, 20 mm and 30 mm. Discussion the methods of data used in this research was descriptive method of comparative investigation. Data obtained from the test results documentation exhaust emission levels of CO and HC with the application of fuel heating used variations of the distance between the fins 10 mm, 20 mm and 30 mm at different round of 1.000 rpm, 2.000 rpm and 3.000 rpm. Based on the results of this study concluded: (1) There was a warming effect of gasoline with variation distance between the capillary tube finned transverse and rotary the engine to the exhaust emissions of CO and HC. (2) The content of the exhaust emissions of CO and HC tends decreased as the temperature rised in the fuel and engine rotation. Test data showed that the average level the lowest CO exhaust emissions occured at 1.000 rpm with variation of the distance between the fins of 20 mm was equal to 0.180% volume and the lowest HC at 3.000 rpm using a variation of the distance between the fins of 20 mm and 10 mm that is equal to 120 ppm volume.

PENGARUH PENERAPAN MODEL PEMBELAJARAN ENQUIRING MINDS TERHADAP HASIL BELAJAR MOTOR OTOMOTIF SISWA KELAS XI TKR SMK NEGERI 5 SURAKARTA Rizando, Riza
Jurnal Nosel Vol 4, No 1 (2015): July
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The objectives of this research are to investigate: (1) the effect of enquiring minds learning model application on the learning result of low ability group of experimental class and that of control class; (2) the effect of enquiring minds learning model application on the learning result of high ability group of experimental class and that of control class; (3) the effect of enquiring minds learning model application on the learning result of experimental class and that of control class; (4) the effect of enquiring minds learning model application on the learning result of experimental class; and (5) the effect of enquiring minds learning model application on the learning result of control class. This research used the quasi experimental research method with the pretest-posttest and control group design. The samples of research consisted of 2 classes i.e. experimental class and control class and were taken by using the cluster random sampling. The results of this research shaw: (1) there is a significant difference between the post-test scores of low ability group of experimental class and those of control class that showed by t = 8,901 > 1,690 withp-value= 0,000 < 0,05 ; (2) there is a significant difference between the post-test scores of high ability group of experimental class and those of control class that showed by t = 6,944 > 1,690 with p-value= 0,000 < 0,05 ; (3) there is a significant difference between the post-test scores of experimental class and those of control class that showed by t = 5,822 > 1,666 with p-value= 0,000 < 0,05 ; (4) there is a significant difference between the pre-test scores of experimental class and their post-test scores that showed by t = -7,214 >1,666p-value= 0,000 < 0,05 ; (5) there is a significant difference between the pre-test scores of control class and their post-test scores that showed by t = -4,777 >1,666 with p-value= 0,000 < 0,05. The enquiring minds learning model has a positive effect on the result of automotive motor learning of the students in Grade XI of Light Vehicle Engineering Program of State Vocational High School 5 of Surakarta in Academic Year 2013/2014.

IMPLEMENTASI SISTEM MANAJEMEN MUTU ISO 9001:2008 DI SMK PGRI 1 SURAKARTA Irnawati, Noviyana
Jurnal Nosel Vol 1, No 4 (2013): April
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Tujuan dari penelitian ini adalah untuk memperoleh gambaran tentang: (1) pelaksanaan Sistem Manajemen Mutu ISO 9001:2008 di SMK PGRI 1 Surakarta, (2) faktor-faktor yang mendukung pelaksanaan Sistem Manajemen Mutu ISO 9001:2008 di SMK PGRI 1 Surakarta, (3) faktor-faktor yang menghambat pelaksanaan Sistem Manajemen Mutu ISO 9001:2008 di SMK PGRI 1 Surakarta, (4) manfaat pelaksanaan Sistem Manajemen Mutu ISO 9001:2008 di SMK PGRI 1 Surakarta. Penelitian ini dilaksanakan di SMK PGRI 1 Surakarta. Penelitian ini menggunakan metode penelitian deskriptif evaluatif model CIPP (Context, Input, Process, dan Product). Teknik pengumpulan data dengan angket atau kuisioner, wawancara, dan dokumentasi. Validitas yang digunakan dalam penelitian ini adalah validitas isi. Teknik analisis data yang digunakan dalam penelitian ini melalui analisis rata-rata yang dinilai berdasarkan kriteria penilaian. Hasil penelitian menunjukkan: (1) Kualitas pelaksanaan sistem ISO 9001:2008 di SMK PGRI 1 Surakarta tergolong tinggi. (2) Faktor-faktor yang mendukung pelaksanaan sistem ISO 9001:2008 di SMK PGRI 1 Surakarta yaitu (a) Pada evaluasi konteks faktor yang mendukung antara lain : (i) Kondisi orang tua; (ii) Kebijakan dalam penerapan sistem ISO 9001:2008; (b) Pada evaluasi input faktor yang mendukung antara lain: (i) sistem Penerimaan Peserta Didik Baru (PPDB); (ii) kesiapan siswa; (iii) kesiapan guru; (iv) kesiapan kepala sekolah; (v) kesiapan Wakil Manajemen Mutu ; (vi) kurikulum yang relevan dengan Dunia Usaha/Dunia Industri (DU/DI); (vii) kesiapan sarana dan prasarana; (viii) kesiapan media pengajaran; (ix) kesiapan keuangan; (c) Pada evaluasi proses faktor yang mendukung antara lain: (i) Pelaksanaan pembelajaran; (ii) Peran kepala sekolah; (iii) Pemberdayaan Sumber Daya Manusia (SDM); (iv) Pelaksanaan administrasi; (v) Pengendalian terhadap pelanggaran siswa; (vi) Kerjasama dengan Dunia Usaha/Dunia Industri (DU/DI); (vii) Pelaksanaan penilaian hasil belajar; (d) Pada evaluasi produk faktor yang mendukung antara lain: (i) Kualitas siswa; (ii) Kuantitas siswa; (iii) Kepuasan siswa. (3) Faktor-faktor yang menghambat dalam pelaksanaan sistem ISO 9001:2008 adalah (1) Pemberdayaan kualitas Sumber Daya Manusia (SDM) karyawan yang rendah. (4) Pelaksanaan sistem ISO 9001:2008 di SMK PGRI 1 Surakarta memberikan manfaat yang tinggi antara lain: (a) meningkatkan kualitas lulusan; (b) meningkatkan kuantitas lulusan; (c) meningkatkan kepuasan siswa.

KAJI EKSPERIMENTAL PERFORMANSI PENGEREMAN KAMPAS REM SERAT BAMBU SEBAGAI BAHAN ALTERNATIF KAMPAS REM MOBIL Saputro, Aditya Eko
Jurnal Nosel Vol 4, No 4 (2016): April
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The purpose of this research were: (1) To learn the effect of composition variations with materials bamboo powders, Aluminium (Al), magnesium oxide (MgO), and polyester resin toward the friction coefficient value at the braking performance test. (2) To learn the composition variation brake pad with material friction bamboo powders the most ideal friction coefficient value with Nissin brake pad as comparison. (3) To compaired braking power of car brake shoe with bamboo powders supplements as composite materials to standard Nissin brake pad. This study was an experimental study with descriptive quantitative data processing. Data were obtained by using prony brake engine braking performance test. The sample processed by making 3 composition of brake lining, each composition is made of 3 pieces of samples into (1A, 1B, 1C; 2A, 2B, 2C; 3A, 3B, 3C). Data obtained from the results of research put into a table and displayed in graphical form, then analyzed. Based on the result of this study concluded that: (1) Variations composition the brake lining effect on the value of friction coefficient in the braking performance test. The increasing percentage composition of bamboo powder, will lower the braking performance (friction coefficient) brake lining samples, as well as the increasing percentage of magnesium oxide (MgO) then also improve braking performance (friction coefficient). (2) The best friction coefficient is composition sample 1 with composition of 35% bamboo powder, aluminium 15%, MgO 35%, resin 15% by 0,404 friction coefficient value. (3) From the research results can be know that car brake shoe with bamboo powders supplements as composite materials have the good friction coefficient more than Nissin brake pad if the review from results the braking performance (friction coefficient).

PENGARUH PENGGUNAAN WATER INJECTION DAN JENIS BAHAN BAKAR TERHADAP KONSUMSI BAHAN BAKAR PADA SEPEDA MOTOR HONDA SUPRA FIT TAHUN 2006 TS, Maulana Sidik
Jurnal Nosel Vol 3, No 2 (2014): October
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The objective this research are to investigate: (1) Investigate the effect of water Injection the fuel consumption of Honda Supra Fit motorcycle 2006. (2) Investigate the effect of variations to the fuel consumption of Honda Supra Fit motorcycle 2006. (3) Investigate the effect fuel and water injection to the variation fuel consumption of Honda Supra Fit motorcycle 2006. The method used in this research is descriptive quantitative method. The study was conducted on Jl Raya Kartosura-Boyolali along 3 km sample in this study is the bike Honda Supra Fit 2006. The data of the research were obtained through documentation of the result of measurement consumption fuel. This research data analysis in is using descriptive analysis. Based on the results of this study concluded: (1) There is an effect of water injection in fuel consumption Supra Fit motorcycle in 2006. This is indicated by a decrease of 1,66 ml/km. (2) There is effect of variations in fuel consumption fuel pertamax the Supra Fit motorcycle in 2006. This is indicated by a decrease of 0,45 ml/km. (3) There is a variation of the interaction of water injection and fuel variations on the fuel consumption of Honda Supra Fit motorcycle 2006, Reduce In the fuel consumption is 1,33 ml/km to 3 km mileage vehicles. Variations water injection with pertamax be recommended because it can reduce fuel consumption.

STUDI PENAMBAHAN BENTONIT PADA PASIR CETAK BASAH TERHADAP PERMEABILITAS DAN KEKUATAN TEKAN Tegar K, Gemilang
Jurnal Nosel Vol 1, No 2 (2012): October
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Tujuan penelitian ini adalah membuktikan bahwa variasi penambahan bentonit sebesar 0 gr, 30 gr, 50 gr dan 70 gr, pada pasir cetak basah dapat menyebabkan perbedaan kemampuan alir gas (permeabilitas) dan kekuatan tekan dengan menggunakan bahan campuran pasir (80% pasir kali dan 20% pasir silika). Penelitian ini juga untuk mengetahui variasi penambahan bentonit pada masing-masing sampel penelitian yang menyebabkan permeabilitas dan kekuatan tekan dapat optimal. Sampel pada penelitian ini menggunakan SNI 15-0312-1989 yang mempunyai diameter 50 mm dan tinggi 50 mm. Data diperoleh dengan cara mengukur besarnya nilai permeabilitas dengan alat Permeability Tester, sedangkan nilai kekuatan tekan diukur dengan Universal Strength Machine. Faktor lain yang kemungkinan mempengaruhi hasil pengukuran dikontrol atau dikendalikan. Metode penelitian ini menggunakan metode eksperimen. Hasil penelitian menunjukan bahwa ada perbedaan antara variasi penambahan bentonit pada pasir cetak basah terhadap kemampuan alir gas (permeabilitas) dan kekuatan tekan. Campuran bentonit pada pasir cetak yang paling optimal digunakan untuk cetakan pengecoran besi cor kelabu pada masing-masing sampel penelitian adalah pada campuran penambahan bentonit 50 gr menghasilkan permeabilitas 104,67 cm3/menit dan kekuatan tekan 61,87 KN/m2

RANCANG BANGUN WATER INJECTION BERBASIS MIKROKONTROLER SERTA PENGARUHNYA TERHADAP KONSUMSI BAHAN BAKAR DAN EMISI GAS BUANG (CO & HC) PADA SEPEDA MOTOR HONDA MEGA PRO TAHUN 2009 Zatmiko, Rosyid Wahyu
Jurnal Nosel Vol 3, No 4 (2015): April
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The purposes of this research are to: (1) design water injection system, (2) know the fuel consumption, (2) know the CO exhaust emission, (3) know the HC exhaust emission on Honda Mega Pro 2009 that used microcontroller-based water injection with variations of distilled water and methanol mixture.The research was conducted in the Automotive Laboratory, Mechanical Engineering Education, JPTK FKIP UNS Surakarta, at Ahmad Yani Street, Number 200, Kartasura. This research used Stargas 898 gas analyzer to test CO (carbon monoxide) and HC (hydrocarbon) exhaust emission. Fuel consumption test used static method with specified engine speed. This research used experimental method. The population in this research was Honda Mega Pro 2009 motorcycles. The sample in this research was Honda Mega Pro 2009 with KC11E1237512 engine number. Data obtained from the testing result are inserted into the table and displayed in graphical form to be analyzed. Data analysis used descriptive quantitative method. The results of the research, can be concluded that: (1)Microcontroller-based water injection system can work properly and correctly. (2) There is a decrease in fuel consumption when use microcontroller-based water injection at 4500 RPM engine speed. The best decline occurred in water injection A60 when 4500 RPM engine speed amounted 11.80% compared with standard condition. (3) There is a decrease in CO exhaust emission on the use of water injection A100 and A90. The best decline occurred in water injection A100 amounted 79.42% compared with standard condition. In addition, there is an increase in CO exhaust emission on the use of water injection A80, A70, A60, A50, and A40. (4) There is an increase in HC exhaust emission on the use of water injection A100, A90, A80, A70, A60, A50, and A40.

STRATEGI SEKOLAH DALAM MEMBENTUK TENAGA KERJA TERAMPIL UNTUK BIDANG OTOMOTIF DI SMK NEGERI 2 SURAKARTA Rundhana, Infan Ade
Jurnal Nosel Vol 4, No 1 (2015): July
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The objectives of research are: (1) SMK graduates knowing the expected competencies for automotive sector. (2) Knowing the criteria for skilled labor produced by SMK to enter the working world. (3) Knowing SMK strategy in the form of skilled labor. This study belonged to a qualitative research with descriptive qualitative reseacrh method. The data source was obtained from the interview with informant, document, and archive as well as field observation. The sampling technique used was purposive sampling, by selecting the informants considered as knowledgeable about information consistent with the research problem. Technique of analyzing data used in this research was an interactive analysis one encompassing three component: data display, data reduction, and conclusion drawing. The conclusions of research were: (1) SMK strategy in the form of skilled people, including: (a) Increase the quality of teachers with some training and evaluation in PKG. (b) The division of teaching tasks appropriate to their area of expertise. (c) Providing facilities which support the learning progam planing. (d) Applying appropriate learning methods to student. (e) Introduce the tool in the industry work to students. (f) Giving additional hours for students who do not understand the lessons. (g) Managing practise and classroom space as well. (2) Criteria for skilled labor, including; (a) Capable of completing any work for their duty. (b) Have basic skill to complete the work in accordance with the skill. (c) Have ability and willingness to harrwork. (d) Have willingness to constantly learn new things related to work to add to the experience in translating work. (e) Can and projecting the type of work assigned. (3) SMK graduate labor competencies expected for the automotive, among other: (a) Able to repair hydraulic systems and air compressors. (b) Can using tooling hand equipment. (c) Can do welding prosedure. (d) Care implement prosedures and servicing the fuel system. (e) Repair clutch unit and system componet. (f) Repair wheel drive shaft. (g) Repair the wheel n rubber. (h) Repair minor damage electrical system circuit. (i) improve the brake system. (j) Repair the suspension. (k) Repair the power steering. (l) Repair system starter and charging system.

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