Mechanical Engineering Laboratory Research Articles

Perbaikan Desain Mesin Pencacah Daun Pelawan Untuk Meningkatkan Kemampuan Proses Pencacahan

The Pelawan leaf chopper machine is an annual product of LPPM Universitas Brawijaya Malang and in collaboration with several universities, one of which is Bangka Belitung University which is focused on the Pelawan forest, Namang village, Central Bangka Regency. The chopping machine used has dimensions of 30 x 30 x 3 mm, and uses a 200-watt electric motor drive with a voltage of 220 V/150 Hz, with Rpm 2800 and 2 blades in the hopper. During the machine testing process, there were still deficiencies in the tool components which caused the results of the chopping to not be chopped properly. Therefore, it is necessary to identify existing problems and make design improvements to the pelawan leaf chopper machine to increase the capability of the chopping process. Identification was carried out on a pelawan leaf chopper machine in the Mechanical Engineering Laboratory at Bangka Belitung University. From the identification it is obtained; Firstly, the number of blades is 2, which causes the chopping process to not be optimal. Second, the distance between the hopper wall gaps is too wide, which affects the level of fineness of the chopped results. For this reason, design improvements were carried out to provide several alternative concepts (sketches) for the number of blades from various constructions on the machine. The alternatives given are 3 concept variants, the first is a 90° tilt propeller concept variant, the second is a 45° tilt screw layout concept variant and the third is a straight concept variant and a 90° tilt layout. In this research, variations of the concept following the assessment criteria and a distance between the blades of 45° enabled maximum results to be obtained.

CREATION OF MECHANICAL ENGINEERING LABORATORY EQUIPMENT RECORDING APPLICATION USING MICROSOFT ACCESS AT SMK NEGERI 1 PALANGKA RAYA

The application for recording laboratory equipment loans has an important role in the efficiency of administration and equipment management in educational environments such as SMK Negeri 1 Palangka Raya. This article describes the development of a Microsoft Access-based mechanical engineering laboratory equipment loan recording application to meet school needs in managing laboratory equipment more efficiently. This application was designed with the unique needs of laboratories in mind, including the process of borrowing and returning equipment, equipment stock management, and reporting on loan activities. Application users, such as laboratory technicians and equipment users, can easily record borrowings, check equipment availability, and generate necessary reports. This application is expected to provide benefits in increasing the efficiency of laboratory administration, increasing the accuracy of recording, and providing convenience in reporting. Apart from that, this application is also expected to increase transparency in the process of borrowing Mechanical Engineering laboratory equipment at SMK Negeri 1 Palangka Raya. The performance evaluation results of this application show that users experience improvements in administrative efficiency, recording accuracy and transparency. Thus, this application makes a positive contribution to the management of the Mechanical Engineering laboratory at SMK Negeri 1 Palangka Raya and can be an example of successful technology implementation in education.

Analisis Tingkat Kenyamanan Termal dan Kepuasan Pengguna di Laboratorium Teknik Mesin Universitas Malikussaleh

The laboratory is a place used for practicum, research, and can support the teaching and learning process. The mechanical engineering laboratory space is the most important space and is often used to support study activities in the mechanical engineering department of the university. However, laboratory conditions that do not use air conditioning and only rely on natural ventilation result in the lack of thermal comfort for users to comfortably support user activities. Apart from that, the high temperatures produced by heat through metal roofs from exposure to sunlight, equipment machines that emit hot temperatures, as well as the small amount of incoming and outgoing air flow are the objectives of selecting objects in this research. Thermal comfort is influenced by several variables, namely external, internal factors and air opening design. This research uses a mix method, namely qualitative and quantitative research methods with a descriptive approach. The results of this research are in the form of an analysis which shows that the thermal conditions of the four laboratory rooms do not meet the thermal comfort standards set by ASHRAE with conditions being above the comfort zone and the PMV comfort index cannot be said to be comfortable because there is no wind blowing into the building.

COMPOSITE VOICE-ABSORBING MATERIALS MADE OF POLYESTER-REINFORCED PARTICLES WASTE GLASS PLASTIC AD BIOCOMPOSITE FIBER

Natural fiber as a sound-absorbing biocompisite material is believed to not only reduce noise pollution but also to absorb heat. There are many underutilized coconut husks, which so far the use of coconut husks is only conventional. The focus of this research is to find the right solution in the use of coconut fiber as well as composite material engineering for technological purposes. The research method will use pure experiments using controlled specimens in the mechanical Engineering laboratory of ITB, including mechanicals tests, soundproofing. The results of he tensile test are the tensile strength of the largest coconut fiber composite fiber is found in the fiber volume fraction of 25% with a value of 59.072 Mpa, followed by 20% fiber fraction with a value of 59.025 Mpa, 15% fiber fraction with a value of 56.736 Mpa, fiber fraction 10% with a value of 56.807 Mpa, 5% fiber fraction with a value 53.736. and for he results of the soundproof test with frequency of 250 Hz – 2000 Hz at 5% fiber fraction, it has an absorption coefficient value of 0,03, 10% fiber fraction, has an absorption coefficient value of 0.18, 15% fiber fraction has an absorption coefficient value of 0.18. 0.18, the fiber fraction of 20 has an absorption coefficient of 0.22, the fiber fraction of 25% has an absorption coefficient of 0.28.

Exploring natural language processing in mechanical engineering education: Implications for academic integrity

In this paper, the authors review extant natural language processing models in the context of undergraduate mechanical engineering education. These models have advanced to a stage where it has become increasingly more difficult to discern computer vs. human-produced material, and as a result, have understandably raised questions about their impact on academic integrity. As part of our review, we perform two sets of tests with OpenAI's natural language processing model (1) using GPT-3 to generate text for a mechanical engineering laboratory report and (2) using Codex to generate code for an automation and control systems laboratory. Our results show that natural language processing is a potentially powerful assistive technology for engineering students. However, it is a technology that must be used with care, given its potential to enable cheating and plagiarism behaviours given how the technology challenges traditional assessment practices and traditional notions of authorship.

Explainable AI for Machine Fault Diagnosis: Understanding Features’ Contribution in Machine Learning Models for Industrial Condition Monitoring

Although the effectiveness of machine learning (ML) for machine diagnosis has been widely established, the interpretation of the diagnosis outcomes is still an open issue. Machine learning models behave as black boxes; therefore, the contribution given by each of the selected features to the diagnosis is not transparent to the user. This work is aimed at investigating the capabilities of the SHapley Additive exPlanation (SHAP) to identify the most important features for fault detection and classification in condition monitoring programs for rotating machinery. The authors analyse the case of medium-sized bearings of industrial interest. Namely, vibration data were collected for different health states from the test rig for industrial bearings available at the Mechanical Engineering Laboratory of Politecnico di Torino. The Support Vector Machine (SVM) and k-Nearest Neighbour (kNN) diagnosis models are explained by means of the SHAP. Accuracies higher than 98.5% are achieved for both the models using the SHAP as a criterion for feature selection. It is found that the skewness and the shape factor of the vibration signal have the greatest impact on the models’ outcomes.

Modification of Mechanical Engineering Laboratory Courses to imbibe Industry Skills

Abstract : Technology today is into challenging phase with teams built for management, design, research and development. Engineering has undergone change owing to computer tools that contribute exponential rise in productivity. Educators in India have responded on a positive note, with improved pedagogical practices reported. Governments have supported to percolate this change through New Education Policy that mandates institutes to adopt outcome based education. The initiative is part of OBE framework implemented in design and delivery of heat transfer and machine drawing laboratory courses at undergraduate level. The excitement through active delivery and assessment forms the bedrock of this change. The routine recipe lab is substituted by employer focused practice dimensions of obsolescence removal of and relevance factor. KLE Tech follows a dynamic curriculum design and delivery with inputs from all its stakeholders to make it truly responsive to contemporary change. This gave enriching experience by providing space to gather basic concepts and build on higher order skills. The high weight to continuous learning component (80%) eliminated student anxiety level due to panic in end semester assessment (20%). Overall improvement in student performance in lab courses was reported and scope to address higher learning levels was noticed. The average scores improved as 7- 8 grade pointer for both lab courses investigated with more than 30% score contributed by L3-L4 level task in heat transfer. The student scores were higher in lower level (L2) as compared to performance in demonstration and statistical analysis (L3-L4) due to the change being first experience in their lab conduction. The overall opinion stated the practice to be extended to all lab courses. Keywords: Engineering Education; Graduate Attributes; Heat transfer, Machine drawing.

Intelligent Fault Diagnosis of Industrial Bearings Using Transfer Learning and CNNs Pre-Trained for Audio Classification

The training of Artificial Intelligence algorithms for machine diagnosis often requires a huge amount of data, which is scarcely available in industry. This work shows that convolutional networks pre-trained for audio classification already contain knowledge for classifying bearing vibrations, since both tasks share the need to extract features from spectrograms. Knowledge transfer is realized through transfer learning to identify localized defects in rolling element bearings. This technique provides a tool to transfer the knowledge embedded in neural networks pre-trained for fulfilling similar tasks to diagnostic scenarios, significantly limiting the amount of data needed for fine-tuning. The VGGish model was fine-tuned for the specific diagnostic task by handling vibration samples. Data were extracted from the test bench for medium-size bearings specially set up in the mechanical engineering laboratories of the Politecnico di Torino. The experiment involved three damage classes. Results show that the model pre-trained using sound spectrograms can be successfully employed for classifying the bearing state through vibration spectrograms. The effectiveness of the model is assessed through comparisons with the existing literature.

RANCANG BANGUN CETAKAN PLASTIK SARINGAN PEMBUANGAN AIR KAMAR MANDI

The main purpose of the design of plastic molding molds is to participate in advancing the world of the machining industry and can help the mold industry to simplify and shorten the time in doing a work of making molds, especially plastic molding molds. The design of this plastic molding mold by designing the shape of the injection machine then calculates the volume in the injection machine, the volume of this bathroom drain filter mold is 26838,475 mm3. Calculations on the design of this bathroom drain filter mold use references from the book by Scharcus, Edward and Herman Jutjz, "Westerman table for the metal Trade", Willestern Limited, new Delhi, 1985. The result of this plastic molding design is a filter. disposal of water using materials from PVC (Polyvinyl Chloride) seeds with an injection molding work system in the Sriwijaya State Polytechnic Mechanical Engineering laboratory.

KARAKTERISTIK PENGERING SURYA (SOLAR DRYER) DENGAN TURBIN VENTILATOR

Pada penelitian terdahulu, alat pengering yang dianalisis adalah pengering surya dengan kolektor sekunder, rak bertingkat dan exhaust fan. Penelitian tersebut berhasil mengatasi fenomena lambatnya proses pengeringan akibat terperangkapnya uap air yang keluar dari sampel (tumpukan gabah) pada rak pengering bawah pada rak pengering tengah dan atas. Selain itu temperatur udara dalam kabin pengering sudah tidak melebihi 70oC sehingga kualitas produk (gabah) yang dikeringkan terjamin. Kekurangan pada alat pengering tersebut adalah exhaust fan yang digunakan membutuhkan supply energi listrik sehingga efisiensi pengering masih rendah. Untuk mengatasi kekurangan tersebut, maka pada penelitian ini akan dilakukan modifikasi dengan mengganti exhaust fan dengan turbin ventilator Penelitian ini dilaksanakan di Laboratorium Teknik Mesin, Fakultas Teknik, Universitas Cenderawasih karena telah memiliki peralatan penunjang yang sudah memadai. Metode yang digunakan adalah metode eksperimen yakni membuat sebuah pengering surya tipe rak bertingkat (3 tingkat) dengankolektor sekunder dan turbin ventilator. Kemudian dilakukan pengujian untuk mengetahui karakteristiknya. Hasil penelitian menunjukkan bahwa penambahan turbin ventilator merupakan solusi untuk mengatasi penggunaan energi listrik pada solar dryer. Proses pengeringan pada rak pengering 2 (tengah) dan 3 (atas) tetap berlangsung dengan cepat karena turbin ventilator bisa bekerja seperti exhaust fan. Laju aliran massa udara keluar dari pengering juga baik sehingga temperatur dalam kabinpengering tetap terjaga (tidak melebihi 70oC). Waktu pengeringan gabah dari kadar air awal 24,8% menjadi kadar air akhir 14% adalah 5 jam (rak 1); 6 jam (rak 2) dan 6 jam (rak 3). Efisiensi pengeringan maksimum yang diperoleh adalah 27,35% (rak 1); 24,05% (rak 2); 22,95% (rak 3); 24,78% (rata-rata).

PENGARUH MEDIA PERENDAMAN NaCl TERHADAP LAJU KOROSI PADA BAJA ST 42 DALAM EKSTRAK INHIBITOR KULIT PISANG KEPOK

Effect of NaCl Immersion Media on Corrosion Rate on ST 42 Steel in Kepok Banana Peel Inhibitor Extraction. This study aims to determine the corrosion rate of ST 42 steel using an inhibitor of kepok banana peel extraction with various NaCl immersion media. Sample immersion time is 168, 336, 504 hours. The method used to calculate the corrosion rate is to measure the weight loss. The sample of this research was carried out in the Mechanical Engineering laboratory, Faculty of Engineering and the Pharmacy laboratory, Faculty of Mathematics and Natural Sciences, Tadulako University. The results obtained in the variation of NaCl 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, inhibitor kepok banana peel extraction 300 ppm, an increase in corrosion rate with increasing NaCl variation with the same amount of extraction inhibitor, this is because the percentage of NaCl variation greatly affects the corrosion rate.

Analysis of Coupling Gear on Roller Press Cement Mill

This study aims to determine the causes of failure in the coupling gear, reduce or minimize damage that occurs in the coupling gear, determine the hardness of the coupling gear material, and to determine the level of wear and tear on the coupling gear. This research was conducted from July to October 2022, at PT. Semen Padang, ITP Mechanical Engineering Laboratory, FT-Unand Mechanical Engineering Metallurgical Laboratory. The test procedures used in this study are first to identify the damage, hardness testing on the coupling gear, wear testing on the coupling gear. After observing, the types of damage to the coupling gear are obtained, namely in the form of wear. The types of wear and tear on the coupling gear are scoring, plastic flow, and pitting. Based on the results of the hardness test on the first specimen, the average hardness was 41.1 HRC and on the second specimen, the hardness average was 33.5 HRC and on the third specimen, the hardness average was 34.9 HRC. The specimen that has the highest average hardness value is the first specimen with an average hardness of 41.3 HRC. the wear level in test 1 is 0.008 and in test 2 the wear level is 0.004 and in test 3 the wear level is 0.004 and in test 4 the wear level is 0.004 and in test 5 the wear level is 0.004. From the wear test it was found that the type of wear on the coupling gear material is classified as abrasive and fatigue wear because the two materials are rubbing against each other and the eroded material does not stick to each other and there is also fatigue due to the load that is applied continuously so that the material or coupling gear is worn out.

The Effect of Electrode Angle on the Backward Directional Longitudinal Against Penetration Percentage

Shielded Metal Arc Welding (SMAW) is one of the liquid welding processes (fusion welding) that produces a homogeneous fusion of the electrode with the base metal (base metal), which is caused by an electric arc that generates high heat to melt the electrode and base metal (base metal). simultaneously and protected by a shielding gas from the chemical reaction of the electrode flux. The depth of fusion formed is determined by the heat input, the electrode angle and the welding direction. The research was conducted at the Mechanical Engineering Laboratory of the Padang Institute of Technology. The base metal used is low carbon steel ST 37 with a thickness of 10 mm and a length of 100 mm. width 100 mm. Welding is carried out on the surface of the base metal in the flat position, the type of connection (weld type) is a surfacing weld with 4 welding lines, each strip having a distance of 20 mm. Weld length 100 mm. AWS E6013 electrode specifications with a diameter of 3.2 mm. SMAW welding machine AC current with a voltage of 30 V. current 85 A. The measured electrode angle between the electrode and the welding line is 75o, 85o, 90o. The backward welding direction where the electrode draws the welding fluid into the welding path and the normal arc height where the distance between the electrode and the base metal is equal to the diameter of the electrode. From the welding results, a penetration presentation will be obtained, namely the ratio of the depth of fusion to the width. The research results obtained welding speed: 2.48 mm/s for electrode angle 75o, 2.49 mm/s for electrode angle 85o and 2.51 mm/s for electrode angle 90o. Heat input for electrode angle 750 is 1015.93 J/ mm , the heat input for the electrode angle 85o is 1024.20 J/mm and the heat input for the electrode angle 90o is 1015.93 J/mm. From the comparison of the width with the depth of fusion, it is obtained; The electrode angle 85o has a penetration presentation of 9.85%, which is better in height than the electrode angle 75o, which has a penetration presentation of 8.43%, and the electrode angle 90o has a penetration presentation of 8.35%..

ANALISA KINERJA TURBIN TURGO DAN TURBIN PELTON SKALA LABORATORIUM

This study aims to analyze the performance comparison of turgo turbines and laboratory-scale Pelton turbines. The research was conducted using the H41D/C turbine simulator in the Mechanical Engineering Laboratory of Jayapura University of Science and Technology. Turgo turbines and Pelton turbines were installed in the turbine simulator alternately, and then the turbines were tested for comparison of power and efficiency. During the testing process, the data is measured by turbine rotation, flow rate, and flow pressure using the ADC, then the results are entered into the table, then processed to produce graphs for analysis. From the results of the study, it was concluded that from a comparative analysis of the performance of turgo and Pelton turbines based on a comparative analysis of the power and efficiency of the largest turgo and Pelton turbines at each nozzle opening of 25%, 50%, 75% and 100%, turgo and Pelton turbines with nozzle openings 25% of the power generated by the turgo turbine is 67.96 W. The efficiency is 35.49, while the energy in the Pelton turbine is 83.72W. The efficiency is 41.71, at the nozzle opening, 50% of the power and efficiency of the turgo and Pelton turbines are the largest, the power of the turgo turbine is 87, 37W and 44.75% efficiency.
 In comparison, the Pelton turbine power is 95.5W and 46.66% efficiency. At a nozzle opening of 75%, the greatest strength and efficiency of the turgo and Pelton turbines, the power and efficiency generated in the turgo turbine is 87.18W, and the efficiency is 45.09. In contrast, in the Pelton turbine, the energy produced is 94.86W, and the efficiency is 49.06%. At 100% nozzle opening power and the highest efficiency of the turgo and Pelton turbines, the turgo turbine has a strength of 86.62W and an efficiency of 44.96%. In comparison, the Pelton turbine produces 97.5W of energy and an efficiency of 50.38%.

Optimasi kinerja reaktor pirolysis biomassa dengan penambahan pipa udara

The pyrolysis reactor is a tool that functions to decompose organic compounds from biomass materials which is carried out by a heating process without or little air with temperatures ranging from 300-600°C. The results obtained from the pyrolysis reactor process are charcoal and liquid smoke. The existing air will accelerate the process of biomass oxidation, but if there is excess air it will cause combustion of the biomass so that most of it will be oxidized and decomposed into smoke and this will cause less charcoal yield. However, without air, the pyrolysis process will take longer. Therefore, an ideal air requirement is needed so that the effectiveness of this biomass pyrolysis process can be maintained because it will produce optimal charcoal and liquid smoke. The purpose of this research is to find out how many air pipes for the pyrolysis reactor are needed in this combustion process and how long the time and temperature of the pyrolysis process combustion and how much charcoal and liquid smoke are obtained. This research was conducted at the Mechanical Engineering Laboratory of the University of Muhammadiyah Metro, this study used a pyrolysis reactor with a diameter of 40 cm, height 50 cm, air pipe diameter inch with variations in the number of 1,3 and 5. Using 8 kg of corncob biomass. Straight pipe condenser with 12 mm diameter copper material 3 m long, outer pipe diameter 4 inch. The results showed that the highest pyrolysis temperature in air pipe 5 was 485°C with a pyrolysis process time of 120 minutes and the lowest temperature in pipe 1 was 353°C with a pyrolysis process time of 185 minutes. The results of the most liquid smoke in air pipe 5 are 0.5 liters or 6.25% and the least liquid smoke results are in air pipes 1 as much as 0.32 liters or 4.0% For the highest charcoal yields in air pipes 1 weighing 4 kg or 50% and for charcoal yields at least on air pipe 5 of 3.2 kg or 42.5%. The highest pH level in the air pipe 1 is 3.43 and the lowest level in the air pipe is 3.11.

The manufacturing practices and parameters optimization on abrasive jet machining for surface preparation of mild steels

The fundamental goal of this chore is to Manufacture an abrasive jet machine and experimentally check out abrasive jet surface cleaning and practice of moderate steel for rust cleansing, welding, painting, thermal spray coatings, and so forth. Several programs. In this mission, a physical Abrasive Jet Machine is produced and assembled in Jimma Institute of Technology, Faculty of Mechanical Engineering Laboratory through the usage of regionally available substances and Standard Components from the market. Abrasive debris are accumulated round Beach, Shashemenea, Ethiopia, and characterized/separated by using the use of their size. The minimum floor roughness is located at 2.498 μm and it's far obtained at 5 bars of air pressure, ninety° attitude among workpiece and nozzle jet, 350 μm length of abrasive particle, and 12 mm SOD of the experimental paintings. The excellent degree of performance at “small is higher” floor roughness is −0.763556 μm at the illustration of way parameters air strain at 3 bar, SOD at 10 mm, nozzle mind-set 90°, and abrasive grain duration 350 μm. In addition to this, the maximum fabric removal fee discovered in the mean is 0.0789 g/s is at air strain 7 bar, SOD 12 mm, nozzle mindset 30°, and 500 μm abrasive grain length, and 19s of machining time has been used. The finest degree of normal performance on the “massive is higher” material removal price is 0.07993 g/S on the representation of technique parameters (stress at 7 bar, SOD at 11.7374 mm, nozzle attitude at 90°, and abrasive grain size at 500 μm).Taguchi technique is used to grow to be aware of the top-first-class interplay of controlling parameters and experiments have been done with the use of the Taguchi layout technique and the impact of things are diagnosed with the resource of Minitab software program. The ANOVA is likewise used to research the maximum vital parameters.The final results of these mission paintings are used for similar research paintings, fast pre/put up-cleansing of welding workpieces, fast paint removal, and surface steerage for thermal spray coating industries.

Effect of 70o and 85o Electrode Angles on Reverse Welding Techniques On Fusion Depth

Shielded Metal Arc Welding is a liquid welding process (fusion welding) that produces heat from an electric arc between the electrode and the workpiece. The depth of fusion formed is determined by the heat input, the electrode angle and the welding direction. The research was conducted in the Mechanical Engineering laboratory of the Padang Institute of Technology. The test material used is low carbon steel 10 mm thick, 100 mm long and 100 mm wide. Welding is carried out on the surface of the work material as many as 4 welding lines, each of which has a distance of 20 mm. Weld length 100 mm. The specifications of the AWS E 6013 electrode are 3.2 mm in diameter. AC SMAW welding machine with a voltage of 30 Volts. Welding is carried out according to the working drawings, the welding current is 85 Ampere, the electrode angles are 700 and 850, the weld length is 100 mm and the welding direction is reversed (the electrode attracts welding fluid). From the welding, the welding speed is 2.51 mm/s for the 700 electrode angle and 2.48 mm/s for the 850 electrode angle. The heat input for each electrode angle is 1024.09 J/mm. at the 700 electrode angle has a penetration presentation of 10.85%, 1.14% greater than the 850 electrode angle. This shows that the electrode angle affects the penetration depth and weld width.

Performance Determination of Axial Wind Tunnel Fan With Reverse Engineering, Numerical and Experimental Methods

Abstract In today’s technology, in case of the need for rehabilitation, renovation, or damage, it is necessary to recover the problems quickly with a cost-effective approach. In the case of destructive failure, or misdesign of the devices, replacing the problematic part with the new design is crucial. In order to substitute the related part with the efficient one, reverse engineering (RE) methodology is utilized. In this paper, from the perspective of engineering implementation and based on the idea of reverse engineering, axial wind tunnel fan is rehabilitated using numerical and experimental methods. The current study is focused on an axial pressurization fan placed into Cankaya University Mechanical Engineering Laboratory wind tunnel that has firm guaranteed specifications of 5.55 m3/s airflow capacity. The measurements performed during experiments showed that the fan provides less than 60% airflow compared with firm guaranteed specifications. In order to determine the problems of the existing fan, a reverse engineering methodology is developed, and the noncontact data acquisition method is used to form a computer aided drawing (CAD) model. A computational fluid dynamics (CFD) methodology is developed to analyze existing geometry numerically, and results are compared with an experimental study to verify numerical methodology. According to the results, the prediction accuracy of the numerical method can attain 92.95% and 96.38% for flowrate and efficiency, respectively, at the maximum error points.

Pengaruh prosentase etanol pada oli terhadap lidah api dan temperatur pada burner oli bekas

The large amount of used oil waste in Indonesia cannot be separated from the large number of industries that exist today. Apart from the large number of industries, used oil also comes from the remnants of the use of motor vehicles. types of Hazardous and Toxic Waste (B3) according to Government Regulation no. 8 of 1999. Used oil burners can be used as alternative fuels, of course this can solve the problems of Micro, Small and Medium Enterprises (MSMEs). The research method was carried out to determine the effect of a mixture of ethanol and oil on the length of the flame and temperature, then the researcher tried to determine the effect of the mixing time of ethanol and oil on the length of the flame and temperature. The research was carried out in the Mechanical Engineering laboratory of Panca Marga University in a closed state so that the flames did not change, taking pictures of the length of the flames by recording the fire propagation for 1 minute, then cutting each frame with the help of the imagej application. The results obtained from the study are the addition of the percentage of ethanol affects the length of the flame and the temperature produced by the burner.

Aspects of Biomedical Engineering and Biotechnology

The Biomedical Engineering and Biotechnology (BMEBT) is an interdisciplinary program that includes various courses e.g., bioengineering, biology, chemistry, biochemistry, computer information science, electrical and computer engineering, mathematics, mechanical engineering, and medical laboratory science.