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All Journal Jurnal Bahan Alam Terbarukan Rekayasa Mesin SENTIA 2016 JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal POLIMESIN Jurnal Pengabdian Kepada Masyarakat (J-ABDIMAS) Logic : Jurnal Rancang Bangun Dan Teknologi Journal of Applied Mechanical Engineering and Renewable Energy (JAMERE) Jurnal ELTEK

Anggit Murdani

Politeknik Negeri Malang

Author-ID : 3541140

Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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KINETIC MODELING OF SERIES REACTION CH4-CH3OH-DME WITH CuO-ZnO/gamma-Al2O3 CATALYST Chumaidi, Achmad; Moentamaria, Dwina; Murdani, Anggit
Jurnal Bahan Alam Terbarukan Vol 7, No 1 (2018): June 2018 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v7i1.11403

A kinetic model was proposed for the synthesis of methane to be dimethyl ether (DME) in one reaction step from (CH4 + O2) and (CH3OH) to dimethyl ether using kinetic CuO-ZnO /gAl2O3 catalyst parameters. The bifunctional catalyst of the series kinetic reaction model according to the experimental results obtained under isothermal conditions in a pipe flow reactor under various operating conditions: 225-325 Ã‚Â° C; 10 bar gauge; Residence time, 16-57.0 (g Catalyst) hour (mole CH4) -1. An important step for modeling is the synthesis of methanol from (CH4 + O2) and the synthesis of (CH3OH to DME) is methanol dehydration (very fast), and water-shifting and CO2 (equilibrium) reactions. The effects of water inhibition and CO2 were also taken into account in the synthesis of methanol and the formation of hydrocarbons. The dehydration advantage of methanol can achieve higher yields above 60 % methanol that was converted to DME and the remaining 5% methanol if (CH4 + O2) comes in at 10 bar gauge and 375 Ã‚Â° C. At higher temperatures produces CO2 and H2O. Methane-methanol-DME series reaction model follows single-order gas phase reaction to methane and methanol with k1 = 0.195 minutes-1 and k2 = 0.115 minutes-1 The time and maximum concentration occurs in the formation of methanol constituents 9.5 minutes and 0.44 mole

Perilaku Tarik Baja Struktural dengan Variasi Laju Crosshead Murdani, Anggit
Jurnal Rekayasa Mesin Vol 1, No 3 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.262 KB)

The objective this research is to investigate the effect of crosshead speed on the tensile behavior of the structural steel which is presented in stress-strain diagram. The experiments were carried out by performing tensile testing of specimens with various crosshead speeds. The crosshead speed was determined by a dial position of 0.2, 0.5, 1, and 2 on the testing machine.In load-free condition, the dial positions give true speed of the crosshead of 0.042 mm/s, 0.27mm/s, 0.663 mm/s, and 1.354 mm/s respectively. The material used in this research is astructural steel which is comparable to the standard of DIN ST37. The result shows that the various crosshead speeds give a different response of the strain rate during the test. The strain rate, whic is resembled by the crosshead speed, begins to increase at the yield point. Also, theultimate stress of the specimens is affected by the crosshead speed. The ultimate stress of the specimens with dial position of 2 increases approximately 25% from that of with dial position of 0.2.Keywords : tensile behavior, crosshead speed, strain rate

INSTALASI RUNNING TEXT DI PINTU MASUK KAMPUNG BAMBU MEWEK RW 04 KEL. TUNJUNGSEKAR, KEC. LOWOKWARU, KOTA MALANG Heryanto Heryanto; Sadar Wahjudi; Maskuri Maskuri; Anggit Murdani; Agus Hardjito
Jurnal Pengabdian Kepada Masyarakat (J-ABDIMAS) Vol 5 No 1 (2018): JURNAL PENGABDIAN KEPADA MASYARAKAT 2018
Publisher : Publisher UPT P2M Politeknik Negeri Malang

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The residents of RW.04 Kelurahan Tunjungsekar have a plan to create a public playground called Kampung Bambu Mewek. The lack of funding for the development of Bamboo Mewek Village has an impact on the lack of facilities it has. This is seen one of them is the entrance to Kampung Bamboo Mewek that not too impressed so less attract people to visit it. Through this PkM program, it is proposed to install running text, so it is expected to attract people to visit Kampung Bambu Mewek. The method of implementation of this community service program is together with the community building gate of Kampung Bambu Mewek. Some stages of the implementation of this program are: 1. Preparation stage, at this stage we have done first for the preparation of equipment and materials needed such as: Running Text. 2. Erection stage, at this stage in mutual cooperation with the community to build the gate Kampung Bambu Mewek. 3. Reporting stage, at this stage will be reported the results of activities that have been implemented including details of the cost. The whole stages are conducted over a period of 1 month involving the role of the civilitation RT.09 RW.04 Kel. Tunjungsekar Kota Malang.

REVITALISASI KABEL DAN PEMBUATAN SISTEM OTOMATISASI LAMPU PENERANGAN JALAN MENGGUNAKAN SEMI AUTOMATIC TRANSFER SWITCH (S-ATS) DI RT 08/RW 08, KELURAHAN MERJOSARI, KOTA MALANG Satworo Adiwidodo; Mira Esculenta; Anggit Murdani; Yuniarto Agus Winoko
Jurnal Pengabdian Kepada Masyarakat (J-ABDIMAS) Vol 6 No 1 (2019): JURNAL PENGABDIAN KEPADA MASYARAKAT 2019
Publisher : Publisher UPT P2M Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar

RT 08 / RW 08 in the Merjosari Village area, including the area that began to develop and become a reference as a rented place for students studying in Malang. With the increasing number of entrants, the security factor is very important. To improve security for residents in the RT 08 / RW 08, one of the most important is street lighting. The team from State Polytechnic of Malang were moved to make PKM about cable revitalization and the creation of street lighting automation systems using the Semi-Automatic Transfer Switch (S-ATS). The community service activities consist of the revitalization of street lighting cables that are old and do not meet safety standards and are made an automation system for daily lights on-off power and the of semi-automatic transfer switches (S-ATS) to generators if there is a power outage at the night. So if there is a blackout at night, the street lights will stay on using the power from the generator set.

DEHIDRASI METANOL MENJADI DIMETIL ETER DENGAN MEMODIFIKASI KATALIS CuO-ZnO/-Al2O3 Achmad Chumaidi; Dwina Moentamaria; Anggit Murdani
SENTIA 2016 Vol 8, No 2 (2016)
Publisher : SENTIA 2016

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (662.312 KB)

Pemanfaatan LPG sebagai bahan bakar sektor industri dan rumah tangga tidak hanya disoroti dari sisi keterbatasan cadangannya, namun juga menimbulkan emisi gas buang (CO2, NOx, dan SOx) yang berdampak buruk bagi lingkungan Dalam beberapa waktu belakangan, seiring dengan perubahan iklim global, penggunaan bahan bakar kian menjadi perhatian serius. Upaya pengembangan bahan bakar alternatif sebagai pengganti LPG menjadi tuntutan yang semakin menguat dan pertimbangan untuk menjadikan bahan bakar alternatif baru. Saat ini DME sedang diproyeksikan sebagai salah satu sumber bahan bakar alternatif LPG ramah lingkungan yang dapat dihasilkan dari metanol berbagai sumber daya energi. Penelitian ini mempunyai tujuan yaitu mempersiapkan arah dan tahapan pencapaian produk DME dengan mempertimbangkan perkembangan teknologi dalam pemanfaatan sumber energi nasional yang terbarukan dan berkelanjutan serta terwujudnya peran teknologi dan infrastruktur energi guna mendukung bisnis energi. Metode yang digunakan meliputi preparasi katalis dengan mengkarakter katalis CuO-ZnO/-Al2O3 dengan komposisi 1 : 1 : 1 , uji coba reaksi methanol menjadi dimetil eter dilakukan dalam reaktor alir pipa pada suhu 250 – 375oC dengan tekana 2,5 psig, Hasil uji aktivitas katalis terbaik menujukkan konversi metanol sebesar 82% suhu 275oC, selektivitas dimetil eter sebesar 80% suhu 275oC , dan yield dimetil eter sebesar 84% pada suhu 275oC dan WHSV 20 menit-1 pada suhu 325oC

Pemasangan Tulisan Stainless Steel sebagai Identitas Perumahan-Kawasan Syamsul Hadi; Bambang Irawan; Purwoko Purwoko; Haris Puspito Buwono; Anggit Murdani
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 11, No 1 (2021): Juli 2021
Publisher : LPPM UNINUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30999/jpkm.v11i1.931

Confusion of guests/address seekers is a problem they face because of the same 3 housing names, namely Puri Kartika Asri (in Tasikmadu; Jl. Raden Panji Suroso, Blimbing, Malang; and Arjowinangun, Kedungkandang, Malang), but different locations accompanied by 4 developer names are the same, namely Puskopad (Tasikmadu; Jl. Panglima Sudirman; Jl. Sulfat area; and Jl. Mayjen Sungkono, Singosari Malang). The purpose of installing writing is to help guests or grab/gojek drivers or address or postal/delivery service companies for letters/documents/goods/entrusted or guests to a Multipurpose Building in a residential area. The writing method includes deliberations with residents to determine the design of the letter model for the construction of the pergola (where the vines grow) in the form of a gate at the housing gate, ordering letters from stainless steel, embossed type that is rust/weather resistant and roofing bolts to tie letters on the frame, construction that is linked to the framework of the pergola, assessment of robustness and authenticity of placement, adjustment of position, and submission to the Head of RT where the address is posted. The results of the installation of writing in the form of displaying a clear address which implies that there is no more confusion for guests/address seekers to meet those they are addressed to with the conclusion that the address writing clearly acts as a housing-area identity, resulting in synergy between State Polytechnic of Malang and the community in obtaining the benefits of assistance and beauty at RT 01-03 at RW 06 Tasikmadu, Lowokwaru, Malang.

Normalisasi Selokan Buangan Air Sawah, Air Hujan, dan Drainase Perumahan Syamsul Hadi; Anggit Murdani; Santoso Santoso; Agus Sujatmiko; Sugeng Hadi Susilo
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 9, No 2 (2019): Desember 2019
Publisher : LPPM UNINUS

Wild flow of water below the surface of the land toward the road and the foundation of houses, road damage due to land subsidence, damage to the houses foundations, mosquito larvae lodged due to standing water, and the emergence of foul odors as a problem faced. The purpose of service is to help the community to expedite the flow of water from the rice-fields, rain and household waste, drain the gutter as a source of disease (dengue fever) through the gutter, restore the flow of wild water into the gutter, and maintain a healthy hygiene environment. The method applied was consultation with residents to determine the construction design of the channel, dismantling the broken gutters and there was a wild flow of water to the street/house yard, casting with a high-strength concrete until strength enough, repairing the cracked gutter walls with cement paste, and submitting the results of normalization to the Chairman of the local Neighborhoods Association/RT. Normalization results in the form of clean gutters, rice-fields-rain-discharged water from houses flowing through the gutters smoothly without leaking and no puddles, there is a synergy between State Polytechnic of Malang and the community in obtaining a smooth flow of water from rice-fields/rain/discharged houses into the house sewer in RW 06 Tasikmadu-Lowokwaru-Malang which implies awareness of citizens of a clean, healthy and orderly environment. Conclusions of the results of normalization as a flow of water from various origins through a structured sewer smooth water flow, prevention of disease, and providing beauty environmental.

Effect of Material Type and Minimum Diameter of Specimens on the Fatigue Life Syamsul Hadi; Anggit Murdani; Sudarmadji; Andhika Erlangga Setiawan Putra; Bambang Irawan; Hangga Wicaksono; Sza Sya Monica Valeria; Nila Alia
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 21 No. 3 (2021): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

The obstacle faced during the fatigue test is the waiting time which is quite long and inefficient, especially for test specimens made of ductile metal with waiting times of up to several days. The research method includes reducing the specimen radius to obtain a flexural stress approaching 400 MPa which was originally 229 MPa from a radius of 254 mm to 240 mm with the results of turning the original specimen obtained a minimum diameter of 8.6 mm is reduced to 7.3 mm at a maximum loading of 10 kg. Results of the research are brass specimens C3604BD type with a minimum diameter of 8.6 mm at a flexural stress of 298 MPa showing a fatigue life of 2455546 cycles with a test duration of 1754 minutes and a minimum specimen diameter of 7.3 mm at a flexural stress of 299 MPa showing a fatigue life of 684311 cycles with a test duration of 489 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 3.59 times shorter than a minimum specimen diameter of 8.6 mm. Meanwhile, for aluminium AA1101 type with a minimum specimen diameter of 7.3 mm at a flexural stress of 182 MPa, the fatigue life is 422117 cycles with a test duration of 278 minutes and with a minimum specimen diameter of 8.6 mm at a flexural stress of 183 MPa, the fatigue life is 389232 cycles with a test duration of 302 minutes which means that with a minimum specimen diameter of 7.3 mm the fatigue life is 1.05 times shorter than the minimum specimen diameter of 8.6 mm or almost the same.

Corrosion Rate and Residual Stress on GMAW Weld Joint of SUS 304 Steel with Static Thermal Tensioning Treatment R.N. Akhsanu Takwim; Anggit Murdani; Bayu Pranoto
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 22 No. 3 (2022): November
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

One of the biggest problems in the metal welding process, especially for stainless steel, is the occurrence of large distortions. To reduce distortion during the welding process, it is recommended to provide secondary thermal like Static Thermal Tensioning. However, the provision of secondary thermal is allegedly able to decrease residual stress but reduce the corrosion resistance of stainless steel . In this study, variations in temperature of static thermal tensioning were applied during the GMAW process of SUS 304 plate. Furthermore, the results of the welding were made test specimens to determine the residual stress and corrosion rate of each temperature variation. The measurement of the residual stress using slitting method and measurements of the corrosion rate was carried out with the Autolab PGSTAT 204 potentiostat. The measurement results showed that residual stress of the welding results decrease along with the increase in the temperature of the Static Thermal Tensioning treatment where the treatment temperature of 200 ºC have highest residual stress at 113.79 MPa, followed by the treatment temperature of 250 ºC with 105.67 MPa value, and the lowest residual stress at temperature of 300 ºC with 77.82 MPa value. But, the corrosion rate value at the opposite way where the treatment temperature of 200 ºC produces the lowest corrosion rate, which is 0.70 mm/year, followed by the treatment temperature of 250 ºC of 0.99 mm/year and at a treatment temperature of 300 ºC with a corrosion rate of 1.27mm/year.

PENGARUH PARAMETER PENGGURDIAN TERHADAP AKURASI LUBANG KOMPOSIT GONI-POLIESTER DENGAN TWIST DRILL Radiansyah Giga Suhartono; Anggit Murdani
Journal of Applied Mechanical Engineering and Renewable Energy Vol 2 No 2: August 2022
Publisher : Indonesian Society of Applied Science

Composite is a combination of materials consisting of 2 or more materials lead to the composite material has different mechanical properties and characteristics as desired. Composite materials are divided into two types, synthetic fibers and natural fibers. Most of the natural fiber types use jute fiber, as it is a candidate as a reinforce material to produce lightweight, strong and environmentally friendly composite materials as mixing polyester composites. Although composites can be made according to the desired shape, the final work, such as the machining process, is also needed for making several shapes such as making holes with the drill process. Furthermore, twist drilling, can induce damage due to the imperfections of the holes that are produced, resulting asymmetrical holes. This allows complicate assembly and reduce its strength. The parameters use are spindle speed 100 rpm, 700 rpm and 1400 rpm and feeding 0,1 mm/rev, 0,2 mm/rev, 0,3 mm/rev, 0,5 mm/rev and 0,7 mm/rev. The results obtained that using 100 rpm and feeding 0.5 to 0.7 can make imprecise and resulted delamination of the hole. Increased spindle speed such as 700 and 1400 rpm and higher feed rate, resulted increase the accuracy of the hole

Co-Authors Achmad Chumaidi, Achmad Agus Hardjito Agus Sujatmiko Amrullah, Utsman Syah Andhika Erlangga Setiawan Putra Bambang Irawan Bambang Irawan BAYU PRANOTO Gilang Al Azhar Hangga Wicaksono Haris Puspito Buwono Heryanto Heryanto Indrazno Siradjuddin Maskuri Maskuri Mira Mira Mukhamad Luqman Muttaqin Faizin Nila Alia Purwoko Purwoko R.N. Akhsanu Takwim, R.N. Akhsanu Radiansyah Giga Suhartono Sadar Wahjudi Santoso Santoso Satworo Adiwidodo Sudarmadji Sugeng Hadi Susilo Syamsul Hadi Sza Sya Monica Valeria Yuniarto Agus Winoko

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