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INDONESIA
Turbulen : Jurnal Teknik Mesin
Published by UNIVERSITAS TRIDINANTI PALEMBANG
ISSN : 26213354     EISSN : 26560186     DOI : http://dx.doi.org/10.3676
Core Subject : Science, Engineering,
Materials Science & Nanotechnology Mechanical Engineering
Turbulen (pISSN 2621 3354) It's focused on original articles in the form of research results or literature review which provides insight in the field of mechanical engineering and machinery that includes the field study of energy conversion such as combustion engineering, internal combustion engine, fluid dynamics, thermodynamics, heat-mass transfer, HVAC (Heating, Ventilation and Air Conditioning), tribology and sustainable-renewable energy. The field study of metallurgical sciences like materials processing, heat-treatment, metal forming-testing and advances materials. Construction field study with analytical and computational of mechanical rigid body as well as structural mechanisms and manufacturing-industrial study such as metal machining, manufacturing processes and manufacture engineering or as well as other related mechanical engineering field study.
Arjuna Subject : -
Articles 46 Documents
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STUDI AWAL POTENSI HYDROPOWER SEBAGAI SOLUSI KEBUTUHAN ENERGI LISTRIK BAGI MASYARAKAT PINGGIRAN KOTA PALEMBANG Pramadhony Pramadhony; M . Lazim; Ozkar F. Homzah; Rachmat D Sampurno; Heriyanto Rusmaryadi
Jurnal Turbulen Vol 2 No 1 (June 2019)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36767/turbulen.v2i1.521

Abstract

Electrical energy is needed by the citizen of Indonesia including in Palembang City. Palembang is growth rapidly, in contrast there is still citizen who has not enjoyed  the electricity especially who is living in Sukamulya Village, Sematang Borang Sub-ditrict. Constructing a Micro Hydro Powerplant is an effort to facilitate an electircity to the area which has not been covered by PT. PLN. Howefer before constructing a hydro  power plant, a study should be conducted in order to estimate the potency of electrical power which could be generated. Therefore the authors have collected some primary datas such as dimension of river, velocity of water and geographical condition. These datas is used to calculate the potency of energy, either in form of potential or kinetic energy. Based on the on-site observation, all locations have no enough elevation difference. Nevertheles the onlyform of  energy which can be converted into electrical energy is kinetic energy, which determined by the river flow velocity. The fastest river flow is found  in Location of B amounting 0.35 m/s. By optimazing the dimension of turbine and considering the efficiency of transmision and generator, it predicts Turbine, located in Location B, can generate electrical energy with the maximum power of 66.26 Watt. Based on the results, the electrical power potency in all locations are low and did not fullfill the requirements. The power can be increased by levelling up the elevation of the upstream. It can be done by constructing a dam which  integrated with irrigation system. Nevertheles it need a future study in order to predict the impacts. Keywords: : Micro Hydro Powerplant, Energy Potency,  River Flow,  Palembang city
ANALISA CFD PENGARUH LOKASI PEMASANGAN FLOW STRAIGHTENER BESUDUT 45o TERHADAP PEMBACAAN FLOW METER Pramadhony, Pramadhony; Lazim, Muhammad; Fauzie, M Amin; Sianipar, Togar PO
JURNAL TURBULEN Vol 1 No 1 (June 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

A chemical plant needs some high accurate instrumentations in order to support an efficient production process. Flow meter, one of instrumentation types, has function to read the flow rate of a fluid. The error of reading in flow meter can cause some problems such as incorrect reaction doses and the error in the amount of product transferred to consumer. Flow meter installation has to fulfil some requirements in order to achieve an accurate measurement. The altering of flow direction can change the flow pattern and triggers a swirling flow which has to be avoided when it flows through flow meter. Generally flow meter is designed can be work well in an ideal condition. The requirements are a uniform velocity profile, free from a swirling flow and turbulence flow regime. A limitation of space sometimes causes a problem when installing flow meter in an ideal condition. A 45° inclination of flow straightener has better performance in eliminating the swirling flow and improving the velocity profile. By installing the flow straightener in various locations, the required fluid pattern can be obtained as closer as possible form the upstream.  In this research, the authors conduct a CFD analysis to the flow of bio-diesell inside the pipe before it is read by flow meter.  Keywords: : Flow Straightener, Swirling Flow, Flow Meter
PERANCANGAN MESIN REFRIGERASI KOMPRESI UAP PENYIMPAN TELUR AYAM Hendradinata, Hendradinata
JURNAL TURBULEN Vol 1 No 1 (June 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

Cooling Machine for eggs Storage are needed to keep the quality for storage for a long time. The purpose of this research is to design egg storage machine to be guaranteed Nutritional Value, Quality and economic. This plan begins by calculating the coolant load, determining the storage design and the component of the refrigeration component. Based on the results of analysis to store eggs with a capacity of 20 Kg with the dimensions of Length (P) x Width (L) x Height (T) = 70 cm x 70 cm x 80 cm, Found that the Transmission load is 32.1195 Watt, Infiltration load is 1.3853 watts and Product load = 18.692 watts. The required compressor capacity is 21.796455 W. The required Evaporator capacity is 0.1021338 kW and the required Condenser capacity is 123,930255 Watt.  Keywords: Cooling Machine, design-build, cooling load
UJI PERFORMANSI PEMANFAATAN PANAS KONDENSOR SISTEM KOMPRESI UAP 2 HP R-407c TERHADAP SISTEM ABSORPSI Haryanto, Haryanto; Hidayati, Baiti
JURNAL TURBULEN Vol 1 No 1 (June 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

The generating system of the Absorption Refrigeration Trainer with Solar Cell Panel Unit (RBA-ART-S) is one type of cooling systems. Working principle that exist in absorption system one of them using heater, while in vapor compression system, heat is discharged by condenser to environment. If the refrigerant in the absorption system gets additional heat from the condenser in the vapor compression system it will accelerate the heating of the refrigerant present in the absorption system. From the above statement, the authors do research on absorption machine with variation of heat source by using the heat from LPG gas and also with the addition of heat calorific source from the condenser of the vapor compression system, so that the heat from the condenser can be utilized. The parameters taken in this performance test are temperature. Based on the test results obtained niali COP in the absorption system by using LPG gas of 5.781 while the value of COP for the utilization of heat of condenser with LPG gas is 5.941. Thus the process of utilizing condenser heat and LPG gas (combinations) has a higher COP value, in other words there is an increase in performance with the utilization of exhaust heat from the condenser. Keywords: COP, Refrigeration, and Absorption
RANCANG BANGUN MESIN PERAJANG WORTEL MENGGUNAKAN MESIN 1⁄2 HP Andry Lesmana; Eka Sari Wijianti; , Saparin
Jurnal Turbulen Vol 2 No 1 (June 2019)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36767/turbulen.v2i1.519

Abstract

The culinary industry is a strategic sector for economic development in Indonesia. in the province of  Bangka Belitung Islands, now this has been done many culinary business home users better known business with catering. The culinary preferred to official events such as the wedding is one of the gado gado. The gado gado made with various mixtures ingredients like cucumber, carrots, cabbage and salad leaves. The process of cut carrots can be quite complex. Manually, the process of cutting carrots started with cut carrots into thin-thin, then cut extends so that the measuring length of approx. 7cm and thick 2-4 mm. For 5 kg of carrots, takes approximately 2 hours with 4 people of labor. By because it made the chopper engine carrots to help the culinary production to execution more efficient. The chopper engine carrots made dimension 900 mm x 530 mm x 400 mm, with motor power ½ Hp, and audible 1400 rpm. Cutting system using the rotary system namely the dish/stand eye cut the rotating while the position of the carrot is silent. The torque on the axis of the cutter 635,8325 Nmm. The research results show that to chop 1 kg carrot takes approximately 6-7 minutes. Now the results obtained are as much as 53,075% chopping results carrot is good or in accordance with the size of the expected, as much as 28,975 % showed good enough, 17,95 % less good. Keywords: Carrots, Chopper Engine carrots,  Chainsaws
RANCANG BANGUN MESIN PENUMBUK SAGU UBI KAYU UNTUK PROSES PEMBUATAN BERAS ARUK DENGAN MOTOR LISTRIK 0,5 HP Mahdi, Mahdi; Rosa, Firlya; Saparin, Saparin; Wijianti, Eka Sari
JURNAL TURBULEN Vol 1 No 1 (June 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

The pulverization of cassava sago is one of the main of traditional aruk rice.To get a chewy and very chewy level of sago requiresto pulverize ± 50 minutesfor 1 kg cassava sago. To speed up the pulverization process, it was designed a sagopulverization machine with a 0.5 HP electric motor power. The design method uses the French method, with the pulley and v-belt as atransmission system to actuate the eccentric shaft so that the pounder will move up and down. The fixed variable is time and it will set for 10 minutes and 12 minutes with result analysis using visualization method to 10 respondents. The force that generated by eccentric shaft and transmitted to the pounder of 1.010 N produce the chewy level of sago at 10 minutes to pulverization process  with capacity 6 kg / hour and the very chewy level at time 12 minutes with capacity 5 kg / hour.This machine will  reduce time of pulverization process until 76-80% compared to the manual process. Keywords: Aruk rice, grinding machines, electric motors, elasticity
ANALISA TEGANGAN POROS MOBIL LISTRIK TARSIUS X3 MENGGUNAKAN SOFTWARE Firlya Rosa; Joko Mardi Utomo
Jurnal Turbulen Vol 2 No 1 (June 2019)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36767/turbulen.v2i1.520

Abstract

The development of the automotive industri in Indonesia that uses electrical energy sources is still a competition in the environment of college students. One of them is the Tarsius X3 electric car that has 2 kilowatts of power with a rear drive system that is used to transfer power from the electric motor to the wheels. Development, design and analysis of the drive shaft using software, aims to determine the surface tension and deformation that occurs on the shaft. Stress analysis uses the theory of energy distortion (von mises). Loading on the shaft is based on, electrical motor torsion, the weighing of car and stress of the shaft material permits by conducting tensile testing of the ASTM E-8 method as input for simulating CAD software (Inventor). The software simulation results show that the von mises maximum stress occurs at 162.463 MPa and the minimum stress occurs at 0.0011 MPa. The maximum deformation occurs at4.74 x 10-2mm and a minimum of 0 mm. The stress and deformation that occur is still at the safety factor limit of 3.83 at under static conditions. Keywords: Shaft, Von Mises Stress, Safety Factor, Deformation
ANALISA KEGAGALAN PADA DRILL PIPE DI RIG PDSI D1500/53 Prakoso, Anggoro Tri; Suhardan, Suhardan; Homzah, Ozkar F; Hariadi, Sofwan
JURNAL TURBULEN Vol 1 No 1 (June 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

Oil and gas industry use drill pipe to make a well bore, the drill pipe conected one by one by operator.Drill pipe is the important tools to make the hole deeper to reach the resevoir. Another function of drill pipe is to trasnfer the mud and make the circulation during the drilling job. Non productive time on oil and gas drilling operation is undesirable for several reason. One of them is the economic, because it can increase cost, time, and decrase productitity. The problem that often happends is failiure of drill pipe. This paper is aimed to analize the charateristic faiulure on drill pipe in PDSI D1500/53 drilling rig. Material examination which have been done is tensile test, hardness test, spectometer test, fractography, and SEM EDX. The result shoed that fatigue and corrosion fatigue was the root cause of failiure. Keywords: Drill Pipe, Failure, Fatigue
RANCANG BANGUN SISTEM PENDINGIN SEDERHANA SAYURAN DENGAN MEDIA ES Marthin L King; Iskandar . Badil; Sudiadi .
Jurnal Turbulen Vol 2 No 1 (June 2019)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36767/turbulen.v2i1.522

Abstract

Refrigerators are one of the alternative tools for storing vegetables so that they are not quickly damaged and rot which is currently used by many vegetable traders or housewives. Refrigeration machines certainly require electricity as a refrigerator besides not all households have refrigerators or commonly called refrigerators. Therefore it is necessary to design a simple vegetable refrigerator system with ice cube media, which does not use electricity and is very economical in addition to helping the community to store the vegetables so that they are not damaged and rot quickly. This cooling system starts from ice cubes as the main medium, which produces cold air, which is at the top of the vegetable rack and the cold steam will drop down and spread throughout the cooling room. Research conducted on how long the ice cube will melt, calculating the maximum cold temperature produced in the cooling room, looking for efficiency and comparing vegetables stored in the cool room with vegetables in the open air. Keywords: : re-bulit, refrigerator,vegetable, ice cubes
EKSPERIMENTAL KINERJA SISTIM REFRIGERASI AIR CONDITIONER SPLIT TERHADAP PARAMETER PENGUJIAN DENGAN KOMBINASI PEMANFAATAN DAN PEMASANGAN WATER HEATER LISTRIK King, Martin Luther; Husin, Iskandar; Hermanto, Hermanto
JURNAL TURBULEN Vol.1 No.2 (Des 2018)
Publisher : Universitas Tridinanti Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (18.922 KB)

Abstract

Frequent complaints from workers in the company regarding the unavailability of hot water for bathing water needs during the rainy season. To fulfill hot water needs for company workers, it is necessary to install a water heater in each mess for comfort for workers. This experiment is also in line with supporting the Government and Company programs in terms of the efficiency of the energy and global warming beneficiaries that are currently happening. Water heater technology (WH) is considered the most recent and used as an alternative. Its main function is to supply hot water needs in all parts of the housing that are in need. The amount of heated water is adjusted to the needs of the dwelling whether it's for bathing, kitchen matters, and washing. Because it is used when needed, the efficiency side is greatly highlighted from the water heater product (WH). Another advantage of the product concerned is the unlimited supply of hot water provided there is always electricity available

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