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All Journal Dinamika Teknik Mesin : Jurnal Keilmuan dan Terapan Teknik Mesin
M. Wirawan, M.
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Aerospace Engineering Automotive Engineering Mechanical Engineering Physics

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Variasi sudut pemasangan tabung kompresor terhadap unjuk kerja pompa hidram Sutanto, R.; Wardani, K.; Alit, I.B.; Wirawan, M.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 8, No 2 (2018): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (388.161 KB) | DOI: 10.29303/dtm.v8i2.234

Abstract

Water is one of the factors which very important and necessary in the life of living creatures. Therefore,  water  must  be  available  whenever  and  wherever  in  the  quantity,  timing,  and sufficient quality. Hydraulic Ram Pump (Hydram) is a pump which does not require external energy as the power source. The purposes of this research are understanding the influence of mounting tube compressor with tilt angle from the water weight-lift of output pipe .This  research  uses  hydrant  pump  by  the  specification of  tube  compressor where  its’ diameter 3 inches and a height of 60 cm. The falling angle of pump is 35°. The falling-height is 2 meter with 4 variations of weight-lift 4, 4½, and 5 meters.The method of analysis is conducted by analyzing data obtained during the experiment, where the   results in the form of quantitative data which is presented in type of   tables and displayed in graphical form. The results of the research shows that  the best output debit on mounting tube compressor variation 90° that is 0.035 l/s  with 4 meters water weight-lift, while the lowest output debit on mounting tube compressor variation that is 0.011 l/s 5 meters water weight-lift. The best efficiency is 27.3 % in the mounting tube compressor variation 90°  with 4 meters of water weight-lift, while the lowest efficiency is 6.5 % in the mounting tube compressor variation 90° with 5 meters of water weight-lift.
Adsorbsi gas karbon dioksida dalam biogas dengan menggunakan endapan batu kapur Sutanto, R.; Mulyanto, A.; Wirawan, M.; Alit, I.B.; Nurchayati, N.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 9, No 2 (2019): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.693 KB) | DOI: 10.29303/dtm.v9i2.290

Abstract

With the depleting reserves of energy sources and fuel shortages that occur in Indonesia today, it is needed a cheap alternative energy sources and environmentally friendly, one of which is biogas. In this study biogas is generated from horse manure. The fermentation of horse manure can produce biogas with the largest component of the CH4 (49.5%) and CO2 (49.7%). The use of biogas as a fuel is still in the household scale and has not been used optimally. This is due to the biogas still containing high levels of CO2 so that it has low value of heat is produced. This research reduces the CO2 levels by using the Ca(OH)2 or limestone sedimentary, and then react with the CO2 to form CaCO3 and H2O. The variables  studied are the influence of the flow rate of the biogas that CO2 absorbed and CH4. CO2 absorption made by passing the biogas with a variety of flow rates in the Ca(OH)2 at a certain concentration. Gas and Ca(OH)2 contact each other and the chemical reaction occurs. Every 2 minute interval of gas coming out of the absorber is detected by a biogas tester for analysis of absorbed CO2 and CH4 produced. The research results show that the average CO2 can be absorbed at all the variations of biogas flow rate (5 liter/min. 10 liter/min and 15 liter/min) produced CH4 at the biogas flow rate of 10 liter/min is 91%, then at the flow rate of 5 liter/min is 76.2% and at the flow rate of 15 liter/min is 72%.
Studi eksperimental penggunaan limbah karbit sebagai adsorben untuk menurunkan emisi kendaraan bermotor Tira, H. S.; Wirawan, M.; Padang, Y. A.; Salman, S.; Heruwasyah, H.
Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin Vol 10, No 2 (2020): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (516.723 KB) | DOI: 10.29303/dtm.v10i2.339

Abstract

Motor vehicle emissions have proven lead to environmental and human health quality degradation. Therefore, efforts to reduce emissions especially motorcycles need to be done. Utilization of carbide waste has been proposed to be one of the solutions to reduce the level of emission of motorcycles. The carbide waste used is formed into granules and then installed into a reactor and placed in the exhaust line which will act as an adsorbent. The experimental study was conducted experimentally using a Yamaha Mio M3 125 CC. The results showed a reduction in exhaust emissions when using carbide waste adsorbents compared to emissions without adsorbents. The reduction was even greater when the volume of carbide waste was also greater. The reduction occurs in all types of emissions, both HC, CO, and CO2. It was obtained a reduction in emissions could reach up to 57 % for HC. However, the reduction performance cannot last long because the adsorbent has been saturated. Therefore further research is required to be performed.
Variasi sudut pemasangan tabung kompresor terhadap unjuk kerja pompa hidram Sutanto, R.; Wardani, K.; Alit, I.B.; Wirawan, M.
Dinamika Teknik Mesin Vol 8, No 2 (2018): Dinamika Teknik Mesin: Jurnal Keilmuan dan Terapan Teknik Mesin
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/dtm.v8i2.234

Abstract

Water is one of the factors which very important and necessary in the life of living creatures. Therefore,  water  must  be  available  whenever  and  wherever  in  the  quantity,  timing,  and sufficient quality. Hydraulic Ram Pump (Hydram) is a pump which does not require external energy as the power source. The purposes of this research are understanding the influence of mounting tube compressor with tilt angle from the water weight-lift of output pipe .This  research  uses  hydrant  pump  by  the  specification of  tube  compressor where  its’ diameter 3 inches and a height of 60 cm. The falling angle of pump is 35°. The falling-height is 2 meter with 4 variations of weight-lift 4, 4½, and 5 meters.The method of analysis is conducted by analyzing data obtained during the experiment, where the   results in the form of quantitative data which is presented in type of   tables and displayed in graphical form. The results of the research shows that  the best output debit on mounting tube compressor variation 90° that is 0.035 l/s  with 4 meters water weight-lift, while the lowest output debit on mounting tube compressor variation that is 0.011 l/s 5 meters water weight-lift. The best efficiency is 27.3 % in the mounting tube compressor variation 90°  with 4 meters of water weight-lift, while the lowest efficiency is 6.5 % in the mounting tube compressor variation 90° with 5 meters of water weight-lift.
Co-Authors A. Mulyanto Heruwasyah, H. I.B. Alit, I.B. N. Nurchayati, N. Padang, Y. A. S. Salman, S. Sutanto, R. Tira, H. S. Wardani, K.