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Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin

ENTHALPY
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Published by Universitas Halu Oleo

ISSN : - EISSN : 25028944 DOI : -

Core Subject : Engineering,

Mechanical Engineering

Jurnal ENTHALPY memuat artikel hasil penelitian tugas akhir mahasiswa di lingkup Jurusan Teknik Mesin, Fakultas Teknik Universitas Halu Oleo Entalpy Jurnal Ilmiah Mahasiswa Teknik Mesin diterbitkan 4 (empat) kali setahun pada bulan Februari, Mei, Agustus dan November.

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 191 Documents

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Analisis Karakteristik Biomassa Cangkang Kelapa Dan Kulit Mete Melalui Proses Torefaksi Nurudin, La Ode; Mangalla, Lukas Kano; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

In the face of the depletion of fossil fuels, alternative fuels such as biomass are needed. However, biomass has a fairly low calorific value and several other disadvantages compared to petroleum. Therefore, a new breakthrough is needed to correct these weaknesses, one of which is the Torrefaction process. The purpose of this study was to determine the effect of torrefaction of coconut shell and cashew shell biomass on the physical and chemical properties of the material. This research was conducted using coconut shells and cashew shells. The results of this study indicate that the calorific value of coconut shells and cashew shells after torrefaction is 5115,297-5147,021 cal/gr. The water content in coconut shells is 2.718% and the value of water content in cashew shells is 2.397%, the ash content of coconut shells is 6.853% and the value of cashew shell ash content is 6.600%, the value of volatile levels of coconut shells is 14.885% and the value of volatile levels of cashew shells of 14.557% and the value of fixed carbon content of coconut shell is 75.574% and the value of fixed carbon content of cashew shell is 76.447%. Keywords : Biomass, coconut shell, cashewnut shell, torrefaction

Perancangan Alat Press Ubi Parut Tipe Tabung Dengan Sistem Hidrolik Saputra, Zemi Jaka; Balaka, Ridway; Rinova, Raden
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 3 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Cassava as a food ingredient has various processing methods, one of which is grated and then squeezed. In the process of squeezing grated potatoes, it is still mostly done manually. This method, besides being cost-effective, does not require certain skills, but it takes quite a long time to get the desired results. So, there is a need for innovation to facilitate the process of squeezing grated potatoes. Therefore, a research was conducted on the design of a tube type grated sweet potato press with a hydraulic system. The purpose of this study was to simplify and speed up the process of squeezing grated potatoes. This research was conducted by designing using an inventor application by considering the use of materials as a press machine construction. The area of the tool frame steel profile is 30 mm x 30 mm x 4 mm, A = 2.27 cm2. The force acting on the tube when pressing the sweet potato F = 1,236,3 kgf. Tensile force on steel support Fp = 309.075 kgf. Tensile stress that occurs t = 1361.56 N/cm2. Weld area A = 180 mm2. Welded joints in the tool receive a load of P = 3090.7 N (309.07 kg.f) and the welded joint receives a shear load of = 8585 N/mm2 (or 858.5 N/cm2).Keywords: Design, press tools, hydraulics

Pengujian Eksperimental Perbandingan Konsumsi Bahan Bakar dan Emisi Gas Buang Dengan Beberapa Jenis Bahan Bakar Pada Sepeda Motor Firsan, Muhammad; Mangalla, Lukas Kano; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 1 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Air pollution is caused by the activities of motorized vehicles that emit exhaust gas emissions, including CO, CO2, HC, NOX, SOX, and particulates. The purpose of this study was to determine how the effect of fuel variations on the time of fuel consumption and exhaust emissions on motorcycles and to find out how the composition of mixing premium fuel with ethanol affects the time of fuel consumption and exhaust emissions. This study uses 4 types of fuel, namely premium, pertalite, E-5, and E-10 and tested using 3 variations of throttle openings. From the test results, it is found that the most fuel consumption is found in the wide throttle opening on premium fuel = 0.77 L/h. For the results of the lowest CO and HC exhaust emissions found in the wide throttle opening on the E-10 fuel where the emission value of CO = 1.98% and HC = 1425 ppm. So it can be concluded that in comparison with the time of fuel consumption, the higher the throttle opening, the faster the fuel consumption will be and for exhaust gas emissions, the higher the throttle opening, the lower the CO and HC emission values. Mixing premium fuel with ethanol can make the fuel consumption time slower than pure premium and can also reduce the content of CO and HC exhaust emissions.Key words: Fuel, Exhaust emissions, Fuel consumption

Optimalisasi Perancangan Chassis Mobil Listrik Tipe Prototype Menggunakan Autodeks Inventor Fredyansah, Muhamad; Gunawan, Yuspian; Sisworo, Raden Rinova
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Prototype cars are future vehicles with special designs that maximize efficiency. An important part of the vehicle, one of which is the chassis, which functions to support the passengers, engine, body and the weight of the chassis itself, so it is necessary to design a lightweight and strong chassis. The purpose of this research is to determine and study the stress, strain, displacement and safety factors that occur in the prototype type electric car chassis designed. 3-dimensional design modeling and simulations were performed on Autodesk Inventor software. Based on the simulation results of loading 60kg, the optimal material is aluminum 6061 compared to aluminum 6063 with the results obtained for stress, strain, displacement, and safety factor. on aluminum 6061 with successive values of 59.712 MPa, 0.000796, 1.299 mm, 4.605. While the aluminum 6063 with a value of 59.628 MPa, 0.000806, 1.316 mm, 3.585. The greater the load, the greater the stress and strain.Key words: Chassis, Desingn, Prototype, Simulation

Analisis Distorsi Berbasis Metode Elemen Hingga Pada Proses Pengelasan Kampuh U dan V Erikman, Erikman; Gunawan, Yuspian; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The purpose of the study is to find out the influence of the type of welding on deformation produced by using the element method up to through ansys software. The material used in this study is AlSl 4130 steel material the process of connecting metal or distributing temperature into the connection material is carried out using ansys software with camphor used campuh U and V. The temperature given to the material is 1500°C. The results of the largest deformation research in the U camp are 0.00074711 m while in camphor V the total deformation formed from the welding temperature given is 0.00034381 m. The total difference in deformation formed in each camp is caused by the concentration of temperature that occurs in the material caused by the amount of temperature filling in the camp.keywords: Deformation, welding camp, temperature distribution

Pengujian Sifat Fisik dan Mekanik Pada Komposit Papan Partikel Berbahan Dasar Limbah Serbuk Kayu, Serbuk Ban Bekas dan Resin Polyester Anwar, Fardillah; Mangalla, Lukas Kano; Sisworo, Raden Rinova
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Particle board is a board made of wood particles or other particle materials bonded with organic or synthetic adhesives and with the help of one or more elements of heat, pressure, humidity, catalyst and others. particleboard composites made from sawdust, waste tire powder and polyester resin on Bending and Water Absorption Tests. Comparison of composite material composition of particleboard waste wood powder, waste tire powder and polyester resin, namely 30% : 20% : 50%, 40% : 10% : 50%, 45%: 5%: 50% and 50% : 0% : 50%. The test standard is based on SNI 03-2105-2006. The results showed that the greatest bending strength value was obtained at the composition of 50%: 0%: 50% of 186.223 Kgf/cm². and the largest water absorption value was obtained at the composition of 45%: 5%: 50% at 2.581%.Keywords: Bending, Water absorption, Particle board, ,Wood powder, Used tire powder

Analisa Pengaruh Variasi Jumlah Nozzle Dengan Memanfaatkan Ketinggian Aliran Air Terhadap Daya Listrik Yang Dihasilkan Turbin Pelton Yasir, La Ode; Balaka, Ridway; Endriatno, Nanang
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The performance of a Pelton turbine is influenced by the height, flow velocity, blade angle, number of nozzles, flow size and number of blades and nozzle spray distance. The purpose of this study was to determine the effect of variations in the number of nozzles and nozzle angles on the power produced by the PRLton turbine. The test results show that the more nozzles used, the greater the power generated and the smaller the nozzle angle, the greater the power generated. In position I using 1 nozzle, at an angle of 25o the electrical power produced is 6.16 Watt, at an angle of 30o the electric power produced is 2.65 Watt, at an angle of 45o the electrical power generated is 0.1 Watt. While in position II using 2 nozzles, , at an angle of 25o the electrical power produced is 7.56 Watts, at an angle of 30o the electrical power generated is 3.76 Watts, at an angle of 45o the electrical power generated is 0.24 Watts.Keywords: Electric power, Nozzle, Pelton turbine

Pengaruh Jumlah dan Panjang Blade Terhadap Performa Kincir Angin Pongbarib, Esau Irsan; Mangalla, Lukas Kano; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Energy needs continue to increase in line with the increasing population, while fossil energy is very limited and has a negative impact on the environment. Therefore, alternative energy sources such as wind energy are very important to be developed. This study observes the effect of the number of turbine blades and blade length on the rotation and current output. The study was conducted experimentally using the 2, 3, and 4 number of blades, while the length was varied from 10 cm, 15 cm and 20 cm. The blades performance is compared by measuring the blade rotation and current generated from an electric dynamo connected to the blade rotation. We also carried out several variations of wind speed for each number and length of the blade. The results showed that the number of blades 3 and 4 produced almost the same electric current and rotation while the number of blades of 2 was much smaller. It can also be seen that the blade length of 15 cm gives a large rotation followed by a length of 20 cm and 10 cm.Keyword: Windmill, blade length, performance

Perancangan Alat Angkat Jaring Ikan Kapasitas 300 Kg Aswandi, Baso; Sisworo, Raden Rinova; Samhuddin, Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Fishing net lifting equipment is a tool used to lift fish catches from the sea surface to the ship. This study aims to design a fishing net lifter according to the size of the tool and has the strength of the material that is safe to use, in this study the main system is the YL802-4 type driving motor, hooks with SC42 kg/mm2 material, steel ropes with type 6x19 +1 fiber core, pulley, drum roller rope with cast iron material with material strength 1000kg/cm2, transmission type i= 40 and INP profile steel frame with profile size bar height profile= 80mm, profile width= 42 mm with a cross-sectional area of 758 mm2 , in order to lift a load of 300 kg. For the main size of this tool has a stem height of 1500mm, length of arm span 1000mm, elbow support 1250 mm.Keywords: lifting equipment, design, motor drive

Perancangann Alat Angkat Mesin Mobil Sistem Hidrolik Aswar, Muh; Sisworo, Raden Rinova; Samhuddin, Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

This lifting device is for lifting and lowering loads supported by truss mechanism and a hydraulic jack with a maximum lifting capacity of 480kg. The device focuses on lifting the car engines with a lifting mechanism consisting of strusses, a hydraulic jack capacity of 3 tons, and a chain package with hooks to hang the load. Method of this research is a library research as main sources to design the device. Outcome of this research is a design of lifting device for maximum lifting capacity of 400 k. Material of hook is steel carbon S45C with a maximum tensile stress of 13.26 kg/mm2 . Lifting chain is made of steel alloys Grade 80 with a maximum tensile stress of 187.37 N/mm2 . Truss is selected made of carbon steel S30C with a maximum compress stress of 442.47 kg/cm2 and all of the working stresses are below the allowable stress limits, thus the device is safe to be used.Key words: lifting, Design, Hydraulic

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Yuspian Gunawan

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+6281392700119

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aminur@uho.ac.id

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Jl. H.E.A. Mokodompit Anduonohu

Location
Kota kendari,

Sulawesi tenggara

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Yuspian Gunawan

Contact Email yuspian.gunawan_ft@uho.ac.id

Phone +6281392700119

Journal Mail Official aminur@uho.ac.id

Editorial Address Jl. H.E.A. Mokodompit Anduonohu

Location Kota kendari, Sulawesi tenggara INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

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Abstract

Abstract

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Abstract

Contact Name
Yuspian Gunawan

Contact Email
yuspian.gunawan_ft@uho.ac.id

Phone
+6281392700119

Journal Mail Official
aminur@uho.ac.id

Editorial Address
Jl. H.E.A. Mokodompit Anduonohu

Location
Kota kendari,

Sulawesi tenggara

INDONESIA