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Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin
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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Pengaruh Sudut Elektroda Terhadap Sifat Mekanik dan Fisis Baja Karbon Rendah Hasil Proses Pengelasan SMAW Darmawan, Darmawan; Endriatno, Nanang; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28333

Abstract

Analysis of the effect of welding position and electrode movement pattern on hardness,it can be concluded that the electrode movement pattern has an influence on the hardness result. The purpose of this study was to determine the effect of the electrode angle on the mechanical and physical properties of low carbon steel from the SMAW welding process. The research method used is hardness testing and microstructure analysis. The results obtained are that specimens with different electrode angles, namely 300, 450, and 600 produce an average in each welding area such as the weld area, haz area, and different areas where the greater the angle the higher Also the average for each weld area and also on the analysis of microstructure shows that the weld metal area with electrode angles of 300, 450, and 600 shows the same microstructure or does not show any effect. the larger the area of the weld metal with electrode anglesof 300, 450, and 600, the larger the ferrite area, the larger the area of the weld metal with angles of 300, 450, and 600 pearlite grains.Keywords: electrode angle, low carbon steel, microstructure, welding
Rancang Bangun Pompa Torak Dengan Sistem Penggerak Kincir Air Untuk Pengairan Lahan Pertanian Hendra, Hendra; Sisworo, Raden Sisworo; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29814

Abstract

Indonesia has large water sources, but cannot be fully utilized, for example in the agricultural sector because of the difference in land height and water sources, in connection with that we need pumps that can be used to supply water to the land. The purpose of this research is to design, manufacture pumps, determine the materials used and their strengths, and determine the power generated. Research methods include the design and manufacture of pumps as well as material selection and strength calculations. The results showed that the material for the piston was galvanized pipe with a tensile stress of 330 N/mm2, 3mm thick, the piston rod was a bolt with a tensile stress of 60 N/mm2, the cylinder used PVC pipe with a tensile stress of 21.933 N/mm2, 4.5 mm thick. , the connecting rod and shaft are made of standard assental iron with a tensile stress of 568.7 N/mm2, the sprocket uses a standard spretpat motor with a tensile stress of 509.94 N/mm2, and the chain uses a motor chain, length 1035.5 mm, tensile stress 608.01 N/mm2 and the power generated is 46.96 watts.Kata kunci: alternative, design, pump, reciprocating pump 
Analisis Beban Kalor Pada Ruang Laboratorium Desain Dan Konstruksi Jurusan Teknik Mesin Fakultas Teknik Universitas Halu Oleo Sisa, Arsin; Balaka, Ridway; Sudia, Budiman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29817

Abstract

Air refresher is a process of cooling the air so that it can reach the appropriate temperature and humidity required for the air condition of a certain room. The purpose of this study is to calculate the heat load in the design and construction laboratory of the mechanical engineering department, Faculty of Engineering, Halu Oleo University. The method used in this study is an analytical method by calculating the cooling load on each predetermined parameter, namely on walls, roofs, windows, doors, as well as lighting, electronic equipment and occupants. This calculation is carried out every hour from 08.00 to 17.00 local time. The results showed that the cooling load increased significantly from 08.00 until the peak occurred at 13.00 to 14.00, then the cooling load began to decrease significantly at 15.00 to 17.00. The high cooling load that occurs at 13.00 and 14.00 is thought to be due to the sun's rays coming at a vertical angle so that the heat received is greater than in the afternoon or evening where the angle of incidence of the sun's rays is tilted.Keywords: Air refresh, Cooling load
Potensi Pemanfaatan Serbuk Plastik Dan Biomassa Sebagai Bahan Bakar Alternatif Basir, Muhammad; Mangalla, Lukas Kano; Sisworo, Raden Rinova
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29820

Abstract

Every year the use of fossil fuels has increased, which requires finding alternative energy sources to replace fossil fuels. The existence of plastic waste, especially HDPE plastic and rice husks, is a potential to be used as renewable energy in the form of briquettes. This research was conducted to determine the potential use of plastic powder and biomass as an alternative fuel. The biomass used in this research is rice husk and HDPE plastic. To determine the quality of briquettes, several variations of the mixture of rice husks were used, namely: sample 1 = 90% rice husk + 10% High Density Polyethylene (HDPE) plastic, sample 2 = 80% rice husk + 20% High Density Polyethylene (HDPE) plastic, sample 3 = 70% rice husk + High Density Polyethylene (HDPE) plastic 30%, sample 4 = 100% rice husk. The test parameters used are proximate test (calorific value), flame length test, briquette resistance test. The test results obtained briquettes in sample 3 have a calorific value of 7586,853 cal/g and have a combustion rate value of 0,83 grams/minute.Keywords: Briquettes, Rice Husk, High Density Polyethylene (HDPE) Plastic, Calorific Value
Analisa Prestasi Pompa Hidram Dengan Variasi Katub Beban Dan Kondisi Inlet Santoso, Sigit; Sudia, Budiman; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29821

Abstract

Water transfer in inland areas is still done manually, so we need a water pump with efficiency, technology, economy without the use of electricity and fuel, namely a hydram pump. A hydram pump is a water pump that relies on the momentum of water to raise water. The purpose of this study was to determine the effect of inlet pipe size on pump efficiency, outlet pipe flow rate and the effect of pipe joints on major and minor losses. This research was made with a water source height of 1 m, varying inlet pipes measuring ¾ inch, 1 inch, and 1,5 inch with a length of 5 m, a hydram pump body with a diameter of 1 inch, an air tube with a diameter of 3 inch with a length of 40 cm and an outlet pipe measuring ½ inch. The largest hydram pump efficiency is found in the ¾ inch inlet pipe with 1.94% with an outlet pipe flow rate of 1.79 l/min and the lowest efficiency is in a 1 inch inlet pipe with 1.49% with an outlet pipe flow rate is 1.55 l/min while the major value and the biggest loss value are in the ¾ inch inlet pipe with values of 0.00754 m and 0.678 m and the lowest values are in the 1.5 inch inlet pipe with values of 0.000410 m and 0.019 m so that it can be concluded that the cross-sectional area and the number of connections in the hydram pump installation are very influential on the value of major and minor losses.Keywords: Diameter, Waste Valve, Pipe, Pump
Analisa Kekuatan Tali Baja Sling Crane Berkapasitas 40,6 Ton Di PT. Pelindo IV (Persero) Kendari Ashbah, Ashbah; Mangalla, Lukas Kano; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 1 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i1.29826

Abstract

At the port usually the tools used as moving goods are container cranes, container cranes have the main component of steel rope slings which function as lifting cables on the hoist, usually chosen according to the needs of a construction for that it is necessary to analyze the strength of the steel rope slings currently used and comparing the steel rope with other types of steel rope in order to obtain a more comprehensive understanding of alternative steel rope selection that is appropriate for use in container/container lifting mechanisms. Research Objectives To analyze and determine the strength of a sling crane steel rope with a capacity of 40.6 tons and to determine the electrical power used. The research method is to make observations to determine the length of the steel rope using a roll meter and the diameter of the steel rope using a caliper. research, namely the calculation on wire rope obtained 3,896, kg, the cross-sectional area of the steel rope is 615.44 mm², the breaking stress is 6,330 kg/mm², the permissible breaking load of the steel rope is 12,150 kg, the tensile stress on the steel rope is 2,518 kg, the calculation on driving machine The resulting power (N) is 40.21 kW, the moment of static resistance on the motor shaft (M) is 239.927 kg.m.Keywords: Container, crane, steel rope, container
RANCANG BANGUN DAN ANALISA ALAT METODE DISTILASI AIR LAUT MENJADI AIR TAWAR TIPE SATU BANKING Djuli, Yuvita Satriani; Yunus, La Ode Ichlas Syahrullah; Ibrahim, Akhmad Fadli
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 3 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i3.36484

Abstract

Energi matahari menjadi sumber energi yang ramah lingkungan yang ramah lingkungan. Pada 10 tahun terkahir Pemanfaat energy matahari terus menerus mengalami perkebangan seperti pemanasan dan pendinginan ruangan, system pemanasan air, proses pengering dan destilasi air. Penelitian ini bertujuan untuk menganalisa Laju radiasi matahari yang tiba dibumi, laju radiasi matahari setelah melewati permukaan kaca, energi radiasi matahari Penelitian ini mengkaji laju radiasi matahari pada alat distilasi air laut  pada alat destilasi sederhana  tipe satu banking bertujuan Untuk mengetahui besarnya volume air tawar yang dihasilkan dari proses distilasi. Laju radiasi matahari setelah melewati permukaan kaca miring dengan desain rancang bangun alat destilasi dimensi alat adalah Luas alat distilasi 80 x 50 m2 dan ketebalan kaca 5 mm kemiringan 350. pengujian dilakukan pada tanggal 23-24 November 2016. Pengujian dilakukan di pantai tanjung bayam kota makassar propinsi sulawesi selatan. Dari hasil penelitian membuktikan tipe pada tipe satu permukaan kaca miring menghasilkan kondensat paling banyak yaitu V=330 ml pada jam 12.00 wita pada tanggal 23 november 2016 dengan intensitas matahari tertinggi I = 836,1 w/m2.s
Perancangan Kapal Tanpa Awak Dengan Pengendali Otomatis dan Kontrol Jarak Jauh Samidun, Samidun; Sudarsono, Sudarsono; Endriatno, Nanang
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 2 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i2.34366

Abstract

The development of science and technology in the maritime field is increasing marked by the rapid progress that occurs with the creation of increasingly sophisticated equipment. However, the development of unmanned ship technology is still not widely applied in Indonesia, so it is necessary to develop further technology on unmanned ship technology so that it can be applied in Indonesia, both in the military, commercial and so on. For that we designed an unmanned ship without a remote control automatic control. In this remote control automatic ship program, there are two main programs, namely the transmitter/sender program, where this program is used to program the remote control, while the receiver/receiver program is used on the ship to be steered, and to connect the transmitter and receiver. using the nRF25L01 module. The workings of this tool is that when potentiometer 1 is read it will move the servo motor, and if potentiometer 2 is read, it will move the Brushed Motor through the ESC. The comparison results at an angle of 45°, the track diameter is 145.33 cm, with a time of 5.59 seconds and a speed of 26.02 cm/s. At an angle of 30°, the track diameter is 226.67 cm, with a time of 9.51 seconds and a speed of 23.80 cm/s. While at an angle of 15°, the track diameter is 331.33 cm, with a time of 15.52 seconds and a speed of 21.36 cm/s.Keywords: Unmanned Ship, nRF24L01, Potentiometer
Analisis Getaran Balok Komposit Fiberglass Dengan Variasi Tumpuan Jepit-Jepit, Jepit-Bebas, dan Jepit-Rol Marwin, Marwin; Endriatno, Nanang; Sisworo, Raden Rinova
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 3 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i3.41833

Abstract

Vibration is an alternating motion through its equilibrium point caused by a disturbance or deviation. This study aims to determine the value of vibrational displacement in fiberglass composite beams supported by fixed-fixed, fixed-free, and fixed-roll. The research method includes the design of a vibration test tool made of U-profile steel. The test material uses a composite beam measuring 1000 mm x 25 mm x 25 mm. variations in the placement of the exciter are 10 cm, 25 cm, 40 cm, 55 cm, and 70 cm. the result of the study were obtained on the support of the fixed-fixed the highest deviation value was at a distance of 25 cm, namely 0.193 mm, and the lowest value at a distance of 70 cm, namely 0.096 mm. On the fixed-free support the highest deflection value is at a distance of 70 cm which is 0.455 mm, and the lowest value is at a distance of 10 cm which is 0.133 mm. And while on the fixed-roll pile the highest deviation value is at a distance of 10 cm, which is 0.123 mm. Kata kunci: vibration, displacement, composite, support variation.
Pengaruh Ketebalan Dinding Wick Terhadap Kinerja Termal Heat Pipe Frida Astuti, Fina Andika
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 8, No 3 (2023): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v8i3.42984

Abstract

Heat pipe exchanger is a heat exchanger by utilizing latent heat in its work. The heat pipe is in the form of a pipe with a working fluid inside. There are 3 parts to this heat exchanger, namely the evaporator, adiabatic and condenser. Heat enters through the evaporator section, the fluid in the pipe moves towards the condenser by changing phase to vapor and releases heat through the condenser. After removing the heat, it changes phase again to liquid and returns to the evaporator section. This is because there is capillary action on the wick wall. The wick wall is a layer that surrounds the heat pipe wall to help the fluid return from the condenser section to the evaporator section. This study aims to determine the performance of heat pipes with variations in wick wall thickness and input temperature. The heat pipe heat exchanger is designed with a wick wall thickness variation of 1 mm; 1.5mm and 2mm. The incoming input temperature is 800 C, 100 0 C, 120 0 C. The research shows that the thicker the wick wall and the greater the input temperature, the lower the end to end, the smaller the thermal resistance, the greater the heat flux and the greater the power. generated output. The largest output power (26 W) is at wick 2 wall thickness and the input temperature is 1200Csaja.

Page 16 of 20 | Total Record : 191

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