cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Herry Irawansyah
Contact Email
herryirawansyah@um.ac.id
Phone
+6285345138335
Journal Mail Official
herryirawansyah@ulm.ac.id
Editorial Address
Program Studi Teknik Mesin, Fakultas Teknik, Universitas Lambung Mangkurat Jalan Jenderal Achmad Yani KM 35,5 Banjarbaru, Kalimantan Selatan - 70714
Location
Kota banjarmasin,
Kalimantan selatan
INDONESIA
JTAM ROTARY
Published by Universitas Lambung Mangkurat
ISSN : 27216225     EISSN : 27456331     DOI : https://doi.org/10.20527/jtam_rotary.v2i2
Core Subject : Science, Engineering,
Control & Systems Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
JTAM Rotary diterbitkan oleh Program Studi Teknik Mesin Fakultas Teknik Universitas Lambung Mangkurat. JTAM Rotary merupakan jurnal terbuka yang dapat diakses siapapun, baik itu peneliti, akademisi, dan praktisi di bidang teknik mesin. JTAM Rotary terbit dua kali dalam setahun, yaitu pada bulan April dan bulan September. JTAM Rotary berfokus pada jurnal-jurnal mahasiswa teknik mesin di bidang keahlian Konversi Energi, Desain dan Konstruksi, Manufaktur, dan Rekayasa Material.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 91 Documents
 3   4   5   6   7 
PENGARUH HOLDING TIME DAN MEDIA PENDINGIN PADA CARBURIZINGMATERIAL SUS 630 TERHADAP NILAI KEKERASAN DAN STRUKUR MIKRO Fittonia Aditya Fikara
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3260

Abstract

Stainless steel is material that mostly used in chemical industry because of its excellence in corrosion resistance, in addition to corrosion resistance, hardness on the surface of the material it is also be considered, to meet these needs material engineering is carried out, which is surface hardening. Carburizing is one method to harden the surface. This study aims to determine the effect of holding time and cooling (water, air, and oil) on carburizing SUS 630 stainless steel to hardness, microstructure, and diffusion depth. The material used is SUS 630 stainless steel, with carbon content 0.02%. The heating process at temperature 1020°C with holding time 1 hour, 2 hours, 3 hours, 4 hours and 5 hours then cooled to water, oil and air cooling. Test results show; 1) the longer holding time the value of hardnesswill increases. The maximum hardness value is at 5 hours holding time are 76HRN(water), 71.4HRN(air), and 78.2HRN(oil); 2) the occurrence of micro structure transformation due to holding time and cooling. The microstructure formed is structure of ferrite, perlite and martensite; 3) the longer holding time, the diffusion depth will increases. The maximum diffusion depth value is 5 hours holding time are 7.55ɥm(water), 10.42ɥm(air), and 9.98ɥm(oil). Keywords : Carburizing, Diffusion, Holding Time, Hardness, Microstructure.
ANALISIS EFISIENSI TURBIN UAP UNIT 1 DI PT. PJB UBJOM PLTU PULANG PISAU KALIMANTAN TENGAH edi saputro
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3278

Abstract

This study aims to determine the performance of steam turbine PT. PJB UBJOM PLTU Pulang Pisau Kalimantan Tengah the results of data obtained during each performance test in commisioning 2016 and 2018. This research data is taken from the control room of PT. PJB UBJOM PLTU Pulang Pisau, variable data obtained in the form of load, main inlet steam temperature, main inlet steam pressure, HP heater feed outlet temperature, HP heater feed outlet pressure, main steam flow, and turbine by pass flow. The data is processed to get the turbine heat rate and the efficiency per time of each performance test and then averaging the data results over time, then comparing the turbine heat rate and the average efficiency of each performance test. The calculation of turbine heat rate using heat & mass balance method, turbine efficiency is obtained by comparing the energy of 1 kW with turbine heat rate and multiplying 100%. The result of the average heat turbine calculation per performance test highest ie September 2016 is 3,51and Juli 2018 is 3,27. The average value of turbine efficiency in September 2016 was 29,03% and Juli 2018 was 33,84. Turbine power plant performance of PT. PJB UBJOM PLTU Pulang Pisau increase from 2016 to 2018 by 4,81 %.Keywords:Turbin Heat Rate, Efisiensi Turbin
PENGARUH PENGGUNAAN CATALYTIC CONVERTER BERBAHAN ARANG KAYU ALABAN DENGAN ADITIF TEMBAGA (Cu) TERHADAP EMISI GAS BUANG DAN KONSUMSI BAHAN BAKAR PADA TOYOTA KIJANG 5K Ade Sulton; Abdul Ghofur
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3462

Abstract

Penelitian ini bertujuan untuk mengetahui hasil emisi gas buang dan konsumsi bahan bakar pada penggunaan arang kayu alaban dengan aditif tembaga dengan variasi diameter lubang, campuran dan rpm. Data penelitian ini diperoleh dari hasil pengujian menggunakan analisis gas di Badan Lingkungan Hidup dan uji konsumsi bahan bakar, data variabel bebas menggunakan campuran arang kayu alaban 82,5%, aditif tembaga 7,5%, PVA 10% dan kayu alaban 87,5%. Arang, aditif tembaga 2,5%, PVA 10%, dimensi diameter lubang 15 mm dan 20 mm, idle RPM, 1500, 2500, 3500. Variabel terikatnya adalah mobil Toyota Kijang 5K. Variabel kontrol yang digunakan adalah pengujian emisi gas buang yaitu CO2, CO, HC dan O2 serta pengujian konsumsi bahan bakar. Dari hasil tersebut peningkatan CO2 terbesar adalah 67,46% pada komposisi B rpm 2500, penurunan CO terbesar 75,69% pada komposisi B rpm 3500, mengalami penurunan terbesar pada HC 81,67% pada komposisi B dan kondisi stasioner, penurunan O2 terbesar adalah 40,7% pada komposisi B rpm 2500. Dari hasil pengujian konsumsi bahan bakar mengalami penurunan terbesar yaitu 13,33% pada diameter lubang Komposisi B 15 mm rpm 1500. This study aims to determine the results of exhaust emissions and fuel consumption in the use of alaban wood charcoal with copper additives with variations in hole diameter, mixture and rpm. The data of this study were obtained from the results of testing using gas analysis in the Environment Agency and fuel consumption test, independent variable data used a mixture of 82.5% alaban wood charcoal, 7.5% copper additives, 10% PVA and 87.5% alaban wood charcoal, 2.5% copper additive, 10% PVA, dimensions of hole diameter 15 mm and 20 mm, idle RPM, 1500, 2500, 3500. The dependent variable is a 5K Toyota Kijang car. The control variables used were exhaust gas emissions testing namely CO2, CO, HC and O2 and fuel consumption tests. From these results the largest increase in CO2 was 67.46% in the composition of B rpm 2500, the largest decrease in CO 75.69% in the composition B rpm 3500, experienced the largest decrease in HC 81.67% in composition B and stationary conditions, decreased O2 the biggest is 40.7% in composition B rpm 2500. From the test results, the fuel consumption has the largest decrease of 13.33% in the hole diameter Composition B 15 mm rpm 1500.
PRODUKTIVITAS LISTRIK MICROBIAL FUEL CELL PADA SUBSTRAT LIMBAH AIR REBUSAN MIE INSTAN Erwin Satria Zulfikar; Erwin Satria Zulfikar
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3259

Abstract

In this modern age the need for energy is increasing. This will trigger energy activists to continue to innovate in developing appropriate and efficient alternative energy. One of technology that has the potential to be developed is a Microbial Fuel Cell (MFC) that utilizes microorganisms as catalysts to degrade organic compounds to produce electricity. This experiment focuses on the influence of the incubation time of the waste substrate of instant noodle stew water and the addition of an aerator as an addition to the oxygen compound in the cathode section. The incubation variations carried out in this study were 1 day, 3 days and 7 days. The optimal electricity production results were obtained from a variation of 7 days incubation with currents and voltages of 528 mA and 627 mV, while the incubation of 1 day electric current and maximum voltage obtained were 274 mA and 540 mV. At 3 days incubation of electric current and the maximum voltage is 390 mA and 588 mV. 3. The addition of aerators to the system greatly affects the system, which has an impact on increasing the current and voltage in the Microbial Fuel Cell. Keywords:Electricity, Microorganism, Incubation, Current, Voltage
PENGARUH LSA (LOBE SEPARATION ANGEL) PADA CAMSHAFT TERHADAP UNJUK KERJA MESIN JUPITER Z1 Anasri Habib; Abdul Ghofur
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3465

Abstract

Penelitian ini bertujuan untuk mengetahui performa mesin terbaik dari perubahan angel separasi lobe pada camshaft, dan mengetahui diagram timing katup dari setiap modifikasi camshaft. Penelitian dilakukan dengan mengubah profil poros bubungan untuk menghasilkan waktu katup dan sudut preparasi lobus yang berbeda, kemudian dilakukan pengujian menggunakan dynotest untuk mendapatkan performa mesin Jupiter z1. Hasil penelitian menggunakan dynotest untuk mengetahui performa mesin, dari hasil pengujian mendapatkan hasil tertinggi dari setiap profil camshaft yaitu pada tenaga LSA 103.25o (standar) sebesar 9.035 Hp dan torsi 8.093 Nm, pada tenaga LSA 105.5o Dengan tenaga 9.162 Hp dan torsi 9.062 Nm, LSA 102.5o bertenaga 9.036 Hp dan torsinya 8.949 Nm. Pengaruh LSA pada camshaft standar dan modifikasinya yaitu pada camshaft dengan LSA 105.5o tenaga bertambah 1,3% dan torsi bertambah 10.7% sedangkan tenaga LSA 102.5o bertambah 0.01% dan torsi bertambah 9,5 %. Sehingga performa terbaik didapatkan pada camshaft dengan LSA 105.5o.This study aims to determine the best engine performance from changes in the angel separation lobe on the camshaft, and to find out the valve timing diagram of each camshaft modification. The research was carried out by changing the camshaft profile to produce different valve timing and lobes preparation angles, then do a test using dynotest to get Jupiter z1 engine performance. The results of the study used dynotest to determine engine performance, from the results of testing to get the highest results from each camshaft profile, namely the LSA 103.25o (standard) power of 9.035 Hp and torque of 8.093 Nm, on LSA 105.5o power is 9,162 Hp and torque is 9,062 Nm, the LSA 102.5o power is 9.036 Hp and torque is 8.949 Nm. The effect of LSA on the standard camshaft and modification, namely on the camshaft with LSA 105.5o, the power increased by 1.3% and torque increased by 10.7% while the LSA 102.5o the power increased by 0.01% and torque increased by 9,5%. So that the best performance is obtained on the camshaft with LSA 105.5o.
PENGARUH VARIASI SUHU DAN MEDIA PENDINGIN PADA PROSES PACK NITRIDING MATERIAL SUS 630 TERHADAP NILAI KEKERASAN DAN STRUKUR MIKRO YOSEPH NETANYAHU SILALAHI; Mastiadi Tamjidilllah
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3429

Abstract

This research investigates the application of material engineering techniques on Stainless steel SUS 630 so that it not only has good resilience and resistance to corrosive properties but also has hard properties on its surface. In an effort to improve the quality of violence on the surface, among others, by surface hardening technique, one of which is a heat treatment technique by adding nitrogen elements to the surface of a material called the nitriding pack process. The nitrogen source in the pack nitriding process comes from urea (CO(NH2)2) with a nitrogen content of 46%. Parameters for controlling this study using variables by applying temperature variations (4200C, 4700C, 5200C, 5700C, 6200C)  and cooling media (inside the furnace, room temperature, and with fan) with a holding time of 2 hours. To evaluate this study microstructure testing, diffusion layer testing and micro hardness testing were carried out. From the results of the test it was found that there was no significant transformation of the microstructure shape when comparing with raw material, the optimal value of diffusion layer was in the cooling furnace with a temperature of 6200C with an average of 4.57 μm and white layer 0.53 , the highest hardness was at 6200C with cooling in furnace media which has a value of 80.9 HRN.
RE-DESIGN SISTEM DISTRIBUSI AIR BERSIH DAN FIRE HYDRANT DI GEDUNG PLN UP3B KALSELTENG Anas Satria Aji; Rudi Siswanto
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3464

Abstract

Sistem penyediaan dan distribusi air bersih di gedung-gedung bertingkat sering mengalami kendala. Tidak terkecuali PT. PLN (Persero) Gedung UP3B Kalselteng yang tidak luput dari permasalahan tersebut. Untuk itu perlu dilakukan perancangan ulang sistem distribusi dan penyediaan air bersih serta hidran kebakaran pada gedung. Tujuan dari penelitian ini antara lain menganalisis kebutuhan dan distribusi air bersih dan hidran kebakaran di dalam gedung. Kebutuhan air bersih dihitung berdasarkan jumlah penduduk yang mengkonsumsi air bersih, jenis dan jumlah unit beban alat perpipaan. Perhitungan head loss pada pipa menggunakan persamaan Hazen - William, Darcy-Weisbach dan Colebrook-White. Clean water supply and distribution systems in high-risk buildings often experience problems. No exception is the PT. PLN (Persero) UP3B Kalselteng Building which did not escape this problem. For this reason, it is necessary to re-design the distribution system and provide clean water and fire hydrants to the building. The objectives of this study include analyzing the needs and distribution of clean water and fire hydrants in the building. Clean water needs were calculated based on the number of people that consuming the clean water, the type and number of plumbing tools load unit. Calculation of head  loss  in  pipes  used Hazen – William, Darcy-Weisbach  and  Colebrook-White equation.Clean water supply and distribution systems in high rise buildings often experience problems. No exception is the PT. PLN (Persero) UP3B Kalselteng Building which did not escape this problem. For this reason, it is necessary to re-design the distribution system and provide clean water and fire hydrants to the building. The objectives of this study include analyzing the needs and distribution of clean water and fire hydrants in the building.Clean water needs was calculated based on the number of people that consuming the clean water, the type and number of plumbing tools load unit. Calculation of head  loss  in  pipes  used Hazen – William, Darcy-Weisbach  and  Colebrook-White equation.
ANALISIS KINERJA TURBIN UAP UNIT 3 BERDASARKAN PERFORMANCE TEST DI UNIT PELAKSANA PT.PLN (PERSERO) PEMBANGKITAN ASAM-ASAM Kemas Ronand Mahaputra
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3460

Abstract

This study purpose to determine the performance of steam turbines Unit 3 of PT.PLN (Persero) Pembangkitan Asam-asam by comparing the results of the data obtained by each performance test. This research was carried out by taking data performance tests in 2012, 2017, 2018 and 2019 and then processing the data and obtaining turbine heat rate values and average turbine efficiency then comparing the values obtained in each year. The data taken is obtained from the rendal operation of PT.PLN (Persero) Pembangkitan Asam-asam, data variables taken are load, main steam temperature inlet, main steam pressure inlet, HP heater feed outlet temperature, HP heater outlet pressure, main steam flow. Temperature and pressure obtained are then searched for enthalpy values. The data obtained to calculate the value of the turbine heat rate and turbine efficiency on average per time from each performance test then averages the value of the turbine heat rate and turbine efficiency each time the data collection performance test is then compared with the data each year.The calculation of the turbine heat rate uses the heat & mass balance method by measuring the value of the incoming and outgoing fluid differences and comparing the load obtained, the efficiency of the turbine is obtained by dividing the energy of 1 kW with a turbine heat rate then multiplying by 100%. The average turbine heat rate calculation result for each performance test which is on May 23, 2012 is 2,701, October 27, 2017 is 3,136, September 5, 2018 is 3,005, May 21, 2019 is 3,113. The average turbine efficiency value on May 23, 2012 is 37.02%, October 27 2017 is 31.39%, September 5 2018 is 33.28%, May 21, 2019 is 32.12%. The performance of PT PLN (Persero) Pembangkit Asam-asam Implementing Unit Unit 3 has decreased from 2012 to 2019 which is 4.9%
PENGARUH TIPE KACA PENUTUP 1 SISI DAN 2 SISI DENGAN ABSORBER TEMBAGA PADA SOLAR DISTILLATION TERHADAP PRODUKTIVITAS KONDENSAT AIR LAUT Agung Wibowo; Mastiadi Tamjidillah
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3463

Abstract

Distilasi matahari merupakan suatu alat yang memanfaatkan energi radiasi matahari sebagai sumber panasnya. Penelitian ini membandingkan destilasi surya tipe penutup kaca 1 sisi dan 2 sisi dengan penyerap tembaga. Tujuan dari penelitian ini adalah untuk mengetahui perpindahan kalor yang terjadi, produktivitas air yang dihasilkan dan kualitas air yang dihasilkan. Penelitian dilakukan selama 4 hari. Hasil penelitian menunjukkan bahwa distilasi surya dengan penutup kaca 1 sisi lebih baik dibandingkan dengan penutup kaca 2 sisi. Ini terlihat dari produktivitas air yang dihasilkan. Distilasi surya dengan penutup kaca 1 sisi memiliki produktivitas air 468 ml, sedangkan destilasi surya dengan penutup kaca 2 sisi hanya 450 ml. Perpindahan panas konduksi tertinggi terjadi pada distilasi surya dengan penutup kaca 1 sisi sebesar 4064,6 Watt. Untuk konveksi perpindahan panas tertinggi terjadi pada destilasi surya dengan penutup kaca 1 sisi yaitu 0,16 Watt. Perpindahan panas radiasi tertinggi terjadi pada destilasi surya dengan penutup kaca 1 sisi sebesar 34,7 Watt. Hasil penelitian kualitas air yang dihasilkan oleh kedua distilasi surya tersebut adalah air tersebut dapat dikategorikan sebagai air bersih. Solar distillation is a device that utilizes solar radiation energy as a source of heat. This research compares solar distillation with 1 sided and 2 sided glass cover type with copper absorber. The purpose of this research is to determine the heat transfer that occurs, the productivity of the water produced and the quality of water produced. Research is doing for 4 days. The results of this research that solar distillation with 1 sided glass cover is better to 2 sided glass cover. This is seen from the productivity of the water produced. Solar distillation with 1 sided glass cover has a water productivity of 468 ml, while solar distillation with 2 sided glass cover is only 450 ml. The highest conduction heat transfer is in solar distillation with 1 sided glass cover is 4064.6 Watts. For the highest convection heat transfer is in solar distillation with 1 sided glass cover is 0.16 Watt. The highest radiation heat transfer is in solar distillation with 1 sided glass cover is 34.7 Watts. The results of research the quality of water produced by both solar distillation is that the water can be categorized as clean water.
PENGARUH MIKROORGANISME TERHADAP PRODUKTIVITAS ENERGI LISTRIK MFC DENGAN VARIASI LIMBAH PABRIK TAHU DAN LIMBAH PERIKANAN MUHAMMAD NOVRIANDY
JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jtam_rotary.v3i1.3430

Abstract

Energy is a very fundamental necessity in human life. Current energy usage is highly dependent on the surrounding environment. Especially in remote areas, which require simple energy instruments such as batteries or fuel cells. The Fuel cell is an energy instrument that transfers electricity from a rechargeable source using external materials. Microbial Fuel Cell (MFC) is an alternative form of environmentally friendly energy that is commonly used as a source of energy in the future. MFC is an energy instrument that can convert chemical energy into electrical energy through catalytic reactions by utilizing microorganisms. Plant waste tofu and fishery waste is a waste that contains a lot of carbohydrates, proteins, and fats that usually cause heavy pollution to the waters. By utilizing the liquid waste itself is one way of solving problems in the environment and lack of energy by using the MFC system. For the experiment, this time aimed to compare the electrical energy generated between waste plant tofu and sewage fisheries. In a strong MFC experiment current on plant waste knows an increase as much as 1.47% of fisheries waste, while for voltages in the trial MFC waste fisheries have increased by 1.19% from tofu plant waste.

Page 5 of 10 | Total Record : 91

 3   4   5   6   7 

Filter by Year

2019 2024


Reset
Filter By Issues
All Issue Vol 6, No 1 (2024): JTAM ROTARY Vol 5, No 2 (2023): JTAM ROTARY Vol 5, No 1 (2023): JTAM ROTARY Vol 4, No 2 (2022): JTAM ROTARY Vol 4, No 1 (2022): JTAM ROTARY Vol 3, No 2 (2021): JTAM ROTARY Vol 3, No 1 (2021): JTAM ROTARY Vol 2, No 2 (2020): JTAM ROTARY Vol 2, No 1 (2020): JTAM ROTARY Vol 1, No 2 (2019): JTAM ROTARY Vol 1, No 1 (2019): JTAM ROTARY More Issue