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All Journal Natural B Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring ASAWIKA: Media Sosialisasi Abdimas Widya Karya METAL Proceeding of The International Conference on Mathematical Sciences, Natural Sciences, and Computing
Bernardus Crisanto Putra Mbulu
Universitas Katolik Widya Karya Malang
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Public Health Social Sciences

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The design of Plasma Reactor and Study of Oxgyen Gas Flow Effect against to the Carbon Ashing Rate in Steel K110 Antonius Prisma Jalu Permana; Bernardus Crisanto Putra Mbulu
Natural B, Journal of Health and Environmental Sciences Vol 4, No 4 (2018)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (897.975 KB)

Abstract

Thin film technology is a green technology in order to decrease industrial waste. The need of thin film cleaner in recoating process is a must. Build up of a plasma reactor using oxygen gas and generate with 2.45GHz microwave was studied. The main objective of this research was to determine alternative plasma generation using high frequency microwave 2.45GHz as a thin film cleaning media on thin film technology. The results show that plasma could generate with maximum pressure at 3cmHg or 30 Torr and it could decrease carbon on surface of steel K110.
Rancang Bangun Mesin Pengering Menjes Gombal Dengan Studi Kasus Pengaruh Variasi Waktu Dan Temperatur Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 2, No 2: Maret 2020
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v2i2.2531

Abstract

Menjes is an food that was made by tofu pulp. In order to be made a menjes chis, it must be dried as dry as possible. In this research, it’ll develop a menjes dryer with variation of heat and time in order to calculate the efficiency of the dryer. The results, drying process using menjes dryer was faster than ordinary process. If menjes dried by sunlight, it need 3 hour to decrease 14% of water level inside menjes, but if menjes dryed by menjes dryer it only need an hour to decrease 12,33% water level using T=400C heat source temperatur and 8.6% using T=500C. Keywords: Menjer, Dryer, Menjes Chips, Water Level Abstrak Menjes merupakan makanan berbahan dasar kedelai yang umumnya terbuat dari ampas tahu. Untuk dibuat menjadi keripik menjes, menjes tersebut harus dikeringkan sekering mungkin. Pada penelitian ini, dilakukan rancang bangun mesin pengering menjes dengan variasi temperatur pemanasan dan lama pemanasan. Hasil dari penelitian ini pengeringan menggunakan mesin pengering menjes lebih cepat dibandingkan dijemur di matahari. Proses pengeringan menjes dengan dijemur hanya bisa menurunkan kadar air hingga 14% dalam waktu 3 jam, sedangkan dengan menggunakan pengering menjes dapat menurunkan kadar air 12,33% pada T=400C dan 8,6% pada T=500C dalam waktu 1 jam. Kata Kunci: Menjes, Pengering, Keripik Menjes, Kadar air
Analisa Desain dan Perancangan Ruang Vakum Medium Sebagai Media Pembangkitan Plasma Oksigen Menggunakan Gelombang Mikro 2,45 GHZ Antonius Prisma Jalu Permana; Danang Murdiyanto; Bernardus Crisanto Putra Mbulu
Praxis : Jurnal Sains, Teknologi, Masyarakat dan Jejaring Vol 2, No 2: Maret 2020
Publisher : Soegijapranata Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/praxis.v2i2.2532

Abstract

In line with the development of thin-film technology, its also developing plasma-based removal techniques such as plasma ashing. Plasma is an ionized gas-like phase. Ionized gas when the temperature approaches or exceeds atomic ionization energy. The atoms are ionized into positive and negative ions. The purpose of this research to analyze the working system of plasma generation using 2,45GHz microwaves. The plasma reactor was successfully operating, but it only maintain to generate plasma in short time. The reactor broke because it couldn’t hold the bombardment energy of particles which the energy was 1,623x10-24 for each every second. At last, the reactor could maintain the plasma only for ±240 s. Keywords: microwave, plasma, ashing, vacuum, mean free path, ionization.
EDUKASI MEMERANGI SAMPAH PLASTIK BAGI SISWA SD DAN SMP DI KABUPATEN PASURUAN Anna Catharina Sri Purna Suswati; Bernardus Crisanto Putra Mbulu
Asawika : Media Sosialisasi Abdimas Widya Karya Vol 8 No 2 (2023): Desember : Asawika
Publisher : LPPM Unika Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37832/asawika.v8i2.147

Abstract

AbstrakProsentase sampah plastik di Indonesia menduduki peringkat kedua, setelah sampah organic, yaitu14% dari total. Indonesia termasuk salah satu dari 8 negara terbesar kontributor sampah plastik di laut.Berdasarkan data tersebut, pemerintah berusaha mengurangi limbah plastik melalui berbagai cara, sehingga perludilakukan pemilahan sampah plastik mulai dari sumbernya (rumah tangga). Pemahaman kesadaran memilahsampah plastik dapat dilakukan melalui edukasi, salah satunya kegiatan edukasi terhadap siswa SD, SLB danSMP di Kabupaten Pasuruan. Kegiatan ini dilaksanakan dalam rangka memperingati World Environment Daydengan tema Beat Plastic Pollution. Kegiatan dilakukan dengan penayangan video singkat dampak sampahplastik terhadap biota laut; lomba mewarna tote bag sesuai tema; dan lomba memilah sampah organik, anorganikdan B3. Dari hasil penayangan video, terdapat 57,1% peserta SD memahami isi pesan dalam video tersebut, dan75% peserta SLB dan SMP yang memahami. Seluruh peserta paham untuk memilah sampah organic darisampah lain. Sedangkan dalam memilah sampah anorganik, 50% peserta SD bisa memilah dengan benar;sementara peserta SLB dan SMP hanya 25% bisa memilah dengan benar. Pemahaman memilah limbah B3, 100% peserta SMP,75% peserta SD dan 50% peserta SLB bisa memilah, meski masih ada kesalahan.Kata kunci : edukasi, pemilahan, sampah plastikAbstractThe percentage of plastic waste in Indonesia ranks second after organic waste, constituting 14% of the total.Indonesia is among the eight largest contributors of plastic waste in the oceans. The government has beenmaking efforts to reduce plastic waste through various means, emphasizing the need for plastic wastesegregation at its sources (households). Awareness and understanding of plastic waste segregation can beachieved through education, including educational activities for elementary, special needs, and junior highschool students in Pasuruan Regency. These activities are conducted in commemoration of World EnvironmentDay with the theme "Beat Plastic Pollution." The activities include the screening of a short video illustrating theimpact of plastic waste on marine life, tote bag colouring competition, and waste segregation competition fororganic, inorganic, and hazardous waste. From the video screening, 57.1% of elementary school participantsunderstood the message, while 75% of special needs and junior high school participants understood it. Allparticipants understood how to segregate organic waste from other waste types. However, when it came tosegregating inorganic waste, only 50% of elementary school participants could do so correctly, while only 25%of special needs and junior high school participants could do it. For segregation of hazardous waste, 100% ofjunior high school participants, 75% of elementary school participants, and 50% of special needs participantscould do it, with some errors.Keywords: education, segregation, plastic waste.
CALCULATION ANALYSIS OF HEAT CONDUCTIVITY AND AVERAGE HEAT RATE IN CARBON COMPOSITES Bernardus Crisanto Putra Mbulu; Nereus Tugur Redationo; Febri Valen Herwinsha
Mechanical, Energy and Material (METAL) Vol. 1 No. 2 (2023): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i2.79

Abstract

Carbon is the material most often used in the manufacture of composite materials. Carbon has a fairly high heat conductivity when it is in the form of graphite of 119-165 W.K/m. However, carbon is difficult to form, so another material that has formability is needed. This study used a mixture of carbon, ceramic and wood glue (PVAc) with variations in the main composition of 65% carbon for specimens 1,2,3 and 65% ceramic for specimens 4,5,6. Testing of all specimens was carried out by heating for 30 minutes, followed by temperature data collection every minute. The data that has been obtained is then calculated to determine the value of heat conductivity and average heat rate of each specimen. The highest value of heat conductivity and average heat rate was produced by specimen 2 with a composition of 65% carbon, 15% ceramic and 20% PVAc, where the value for heat conductivity was 95.346 W.K/m and for a heat rate of 206.7 Watt/second. Carbon can increase the conductivity value and heat rate, but if it is mixed with other materials it will certainly be affected, where ceramic affects the surface of the specimen which can cause cracks and reduces the value of the specimen's thermal resistance, while PVAc affects the reduction of surface cracks due to ceramic hardness when heated but can also become insulator in the specimen when bonded to the ceramic
CALCULATION OF POWER REQUIREMENTS TO DRIVE THE BELT WINDER PROTOTYPE PRINTED BY A 3D PRINTER Danang Murdiyanto; Bernardus Crisanto Putra Mbulu; Iga Yuswantoro
Mechanical, Energy and Material (METAL) Vol. 1 No. 2 (2023): Desember: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i2.88

Abstract

The industrial world in the field of medium and large scale construction and maintenance from both various industrial sectors needs to improve procedures with technology that is efficient, safe, can reduce costs, and can minimize process time. Based on the experience of researchers in the agricultural machinery industry when installing and replacing belts on conveyors is done manually, namely by moving the belt using a forklift and according to researchers it is less efficient. The design of this prototype belt winder is to present the actual performance mechanism of the belt winder machine. The method used is to calculate the prototype design, design using 3d software, then the model is printed using a 3d printer. The last process carried out by researchers is assembling each component, then conducting trials and observing the performance mechanism of the prototype belt winder. The results obtained are able to roll a 1030 mm long belt with the required motor power of 5.31 Watt.
PROTOTYPE DESIGN OF PLATE ROLLER MACHINE Danang Murdiyanto; Bernardus Crisanto Putra Mbulu; Bernadus Daniel Wahyu Prasetya
Mechanical, Energy and Material (METAL) Vol. 1 No. 1 (2023): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i1.39

Abstract

Current development of manufacturing industry is expected to have a good and innovative system. Machine planning is a very important part in determining the manufacturing process. Machine prototypes are very important in model and product development, because they can help a designer to evaluate processes, machine performance, and product developments. In this study, a prototype design of a plate roll machine was made. One of the manufacturing processes that is widely used in companies and home industries is the rolling process. Plate roll machine prototype design to find suitable dimensions. The plate roll machine prototype will be made using a 3D printing machine with Polylatic Acid (PLA) material. The prototype plate rolling machine uses a synchronous electric motor type 60KTYZ which has a power of 14 watts and a rotation of 15 rpm. The prototype of this plate rolling machine was tested using aluminum plate as raw material with a length of 820 mm, a width of 10 mm and a thickness of 2 mm. The test results with a given compressive force of 75 N, namely a deflection of 9 mm with a rolling speed of 0.02 m/s. In the equilibrium test, it is produced by calculating structural statics that the action forces and reaction forces are proven to be balanced.
DIFFERENCES IN TEMPERATURE OF SOLAR COLLECTORS USING PAINT WITH A MIXTURE OF COCONUT SHELL CARBON AND PALM SHELL Nereus Tugur Redationo; Bernardus Crisanto Putra Mbulu; Febri Valen Herwinsha
Mechanical, Energy and Material (METAL) Vol. 1 No. 1 (2023): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i1.40

Abstract

Coconut shell carbon and palm shell carbon which undergo a pyrolysis process at 1000oC were used as coatings for solar collectors. The two carbons were tested by SEM to determine their composition. Coconut shell carbon and palm shell carbon were mixed with paint as a coating on the aluminum surface of the solar collector. Aluminum alloy carbon paint was tested for temperature on the surface and bottom. The results of the SEM test, solar collector temperature test and discussion were the basis for knowing the carbon layer content of palm shells, coconut shells and without carbon layers. The results of the SEM test obtained the carbon content of palm shells 86.2% C and coconut shells 92.3% C. The results of the solar collector temperature test for 7 days, on the top surface of the palm shell was 3oC and the bottom surface was 0.9oC. High carbon content indicates a change in temperature in the solar collector.
Evaluation of Electrode Deposition and Corrosiveness in HHO Generators: A Comparative Study Between Theoretical Predictions and Experimental Results Bernardus Crisanto Putra Mbulu; Antonius Prisma Jalu Permana; Donysius Dwi Hercahyo
Proceeding of the International Conference on Mathematical Sciences, Natural Sciences, and Computing Vol. 1 No. 1 (2024): June : Proceeding of the International Conference on Mathematical Sciences, Nat
Publisher : Asosiasi Riset Ilmu Matematika dan Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/icmsnsc.v1i1.11

Abstract

Abstract: Renewable Energi have been goverment concern in Indonesia since 2014. HHO generator is one of some machine to generate hydrogen fuel using electrolysis process. In this research, the discussion will focus on the comparison between theoretical predictions and experimental results, about the causes of precipitation and corrosion of electrodes made of stainless steel produced from HHO generators, especially when using a mixture of KOH and NaCl electrolytes. The results, show the precipitate produced by the KOH solution is less compared to the NaCl solution. Meanwhile, the chlorine (Cl⁻) content of NaCl which is initially corrosive is not always present because it is formed into Cl₂ in the form of a gas, so the subsequent precipitation and corrosiveness depend on the element hydroxide (OH⁻) from H₂O dissociation.
Co-Authors Anna Catharina Sri Purna Suswati Antonius Prisma Jalu Permana Bernadus Daniel Wahyu Prasetya Donysius Dwi Hercahyo Febri Valen Herwinsha Iga Yuswantoro Murdiyanto, Danang Redationo, Nereus Tugur