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All Journal Nozel : Jurnal Pendididikan Teknik Mesin
Basori Basori
Mechanical Engineering Education Universitas Sebelas Maret

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PENGARUH PENGGUNAAN TIPE ELEKTROLISER DAN JENIS LARUTAN PADA HYDROGEN ECO BOOSTER TERHADAP EMISI GAS BUANG SEPEDA MOTOR 4 TAK Abdul ‘Aziz Manggala Saputra; Ranto Ranto; Basori Basori
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28480

Abstract

The purpose of this research are: (1) Investigate the influence of the type of electrolyzer on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. (2) Investigate the influence of the kind of solvent on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. (3) Investigate the influence of the type of electrolyzer and the kind of solvent on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. This research was conducted at the Automotive Laboratory of Mechanical Engineering Education, Teacher Training and Education Faculty Sebelas Maret University of Surakarta used a Honda Supra X 125 motorcycle, year of manufacture 2013. This study is an experimental research. The method of collecting data used in the research is measurement method. The data obtained from the test results were analyzed using Two-Way Anova Test and followed by One-Sample T Test and Scheffe Test. The results of this research are: (1) There is a significance effect on the type of electrolyzer on Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.001 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). (2) There is a significance effect on the kind of solvent on the Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.000 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). (3) There is a significance effect interaction between the type of electrolyzer and the kind of solvent on the Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.000 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). The lowest CO gas obtained on the Wet Cell type using the kind of solvent KOH with a decrease of 84.41%. The lowest HC gas obtained on the Dry Cell type using the kind of solvent NaOH with a decrease of 69.62%.
UPAYA MENINGKATKAN MOTIVASI DAN HASIL BELAJAR SISWA MELALUI MODEL PEMBELAJARAN PRACTICE REHEARSAL PAIRS PADA PEMBELAJARAN PRAKTIK PEMESINAN KELAS XI TMB SMK BHINNEKA KARYA SURAKARTA Arseta Budi Utomo; Danar Susilo Wijayanto; Basori Basori
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28476

Abstract

The research is intended to improve successfully learning motivation and achievement in Mechanical Engineering B, 11th grade at vocational high school of Bhinneka Karya Surakarta in Machinery Practical Learning using Practice Rehearsal Pairs learning model. The research is Classroom Action Research that conducted in two cycles. Each cycle consisted of four stages, there are: planning, acting, observing, and reflecting. The instruments to collect the data, there are questionnaire, interview, test, observation, and documentation. The data was carried out using descriptive qualitative analysis. The result of research showed that there is an improvement in students’ learning motivation and achievement. The student’ learning motivation increased from 74.5% in cycle 1 to 92.59% of students having learned motivation belonging to minimally good category in cycle 2. The students’ cognitive learning achievement increased from 66.67% to 88.89%, the affective learning achievement increased from 81.48% to 85.19%, and the psychomotor learning achievement of students increased from 74.07% to 88.89% of students who could achieve MPC.
Co-Authors Abdul ‘Aziz Manggala Saputra Arseta Budi Utomo Danar Susilo Wijayanto Ranto Ranto