Jurnal Ilmiah Poli Rekayasa
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RANCANG BANGUN PROTOTIPE SOLAR CELL OFF GRID PADA LAMPU TAMAN OTOMATIS
Full text linkThis research aims to design an off-grid PLTS system for garden lighting based on IoT that is efficient and effective. This system will use IoT technology to control garden lights automatically based on light levels and time. This Off-Grid PLTS system will be designed based on the energy needs of garden lighting, solar panel and battery capacity, as well as a lighting control system. The results of research on solar panels tested for three days at 06:00 to 18:00 from the results of the first day of research obtained when the weather conditions were clear, the light level was obtained, namely 74000 lux with the power obtained 25.78 watts when charging the battery and when it rains, you get a light level of 800 lux with a charging power of 1.78 watts. From this it can be concluded that the effect of light intensity and weather on solar panels has an effect on charging the garden lamp battery. From the research results, charging the garden lamp battery with 12 V 35 Ah, the charging time is 21 hours 43 minutes with an average charging current of 1.92 A and battery discharge is obtained from research on the state of the automatic light, the battery discharge time is 19 hours 25 minutes with an average current 1.41A average. Bright light battery discharge time 18 hours 2 minutes with an average current of 1.55A
PERANCANGAN MESIN PENCACAH PAKAN TERNAK MULTIFUNGSI MENGGUNAKAN SYSTEM PENGGERAK MOTOR BAKAR BENSIN
Full text linkThis research introduces the design of a multifunctional animal feed chopper machine using a gasoline engine as the driving system. The gasoline engine used is Ecolite TE160 5.5 HP which can provide reliable power and performance to drive the feed chopper machine. The test material used is banana stems which are effectively finely chopper to obtain consistent and high quality chopper results. This design methodology includes identification of needs, mechanical design, material selection and testing of the tool. The working method of this machine is to insert the banana stem into the input hopper where the chopper knife rotates using a gasoline engine as the driving source. The chopper blade is specially designed with sharpness and thickness that suits the needs needed to get maximum and effective chopper results. The frame of this multifunctional animal feed chopper machine uses L 35 mm x 35 mm x 2.5 mm profile steel with a size of 105 cm long x 35.5 cm wide x 72.5 cm high. From the data obtained, the engine rotation used is 2500 Rpm. The results of testing this machine can be concluded that the heavier the material to be chopper, the longer the chopper time obtained, the thickness obtained is consistently 1.3 cm thick. Overall the development of a multifunctional animal feed chopper machine represents a significant advancement in pemp technolog
Permodelan Perkuatan Stabilitas Lereng Menggunakan Analisis Kesetimbangan Batas Dan Metode Elemen Hingga (Studi Kasus : Desain Dinding Penahan Tanah Gitet 275 Kv Substation Betung).
Full text linkThe increasing national energy demand is influencing the presence of existing power plants. South Sumatra is a region contributing to the national energy supply, leading to the expansion of facilities to generate electricity. Consequently, a new transmission line will be constructed at the 275 KV Betung Station in South Sumatra. With the need to enhance distribution capacity by adding new transmission lines, there is a requirement to expand the area of the Gitet, which was previously 183x98 m2, to 138.55 x 152.68 m2. This study aims to analyze the stability of the embankment, estimated to have an initial height of 8.5 meters. Additionally, plans will be made for constructing retaining walls to expand the Gitet Substation Betung area. Slope Stability Analysis will be conducted using limit equilibrium and finite element methods. The limit equilibrium analysis will employ the Fellenius method, while the Finite Element Method will use Plaxis software. From the analysis results, it's determined that a Retaining Wall (RW) is needed to stabilize the embankment. The design for slope stability involves a 6 meter high counterfort Retaining Wall equipped with Bored Piles having a diameter of 60 cm and a length of 22 meters for every 2.15 meters along the RW alignment
EVALUASI KINERJA DAN PERENCANAAN TRAYEK ANGKUTAN KOTA DI KOTA DENPASAR
Full text linkThere have been many changes in the use of city transportation in Denpasar City since the 1990s until now. Therefore an evaluation of the transportation performance, planning of route systems, and the transportation operational system is needed. Primary data is obtained from headway, interview, and on-board surveys—the calculation of BOK, routes system planning, and operational systems using the Department of Transportation method. The results of the analysis show that almost all routes are not following the standards, both operational performance and service quality. The results of the new route planning are Renon-Penatih with a route length of 19,2 km, circulation time of 63,7 minutes, and the number of vehicles as many as 13 units ; Renon-Ubung with a length of the route of 22 km, circulation time of 69,8 minutes and the number of cars as many as 46 units; Renon-Sanur with a length of the route of 14,3 km, circulation time of 45,6 minutes and the number of vehicles as many as 3units; Renon-Sanglah-Lapangan Kompyang Sujana with a length of route of 18 km, circulation time of 57,9 minutes and the number of cars as many as 31 units; Renon-Sesetan-Suwung with a route length of 17,4 km, circulation time of 56,3 minutes and the number of cars as many as 29 units and; Renon-Teuku Umar-Pedungan with a route length of 15,1 km, circulation time of 47,9 minutes and the number of cars as many as 39 units
PERANCANGAN MESIN MELTER OTOMATIS UNTUK MENGOLAH SAMPAH PLASTIK MENJADI PAVING BLOCK
Full text linkThe increasing amount of plastic waste is one of the main challenges in current waste management. One solution that can be implemented is processing plastic waste into value-added products, such as paving blocks. This study aims to design and develop an efficient melting machine for processing plastic waste into paving blocks. The methods used in this research include the design phase using Solidworks 2022, prototyping, and testing of the melting machine. During the design phase, an analysis of the melting machine requirements was conducted, including capacity, operating temperature, and safety aspects. The design of the melting machine was carried out by considering ergonomic aspects, energy efficiency, and the ability to produce high-quality paving blocks. This process involved the use of materials resistant to high temperatures and thermal insulation materials to maintain optimal operating temperatures. The melting machine was then tested under various operational conditions to evaluate its performance. The melting machine must reach the required operating temperature of 200°C to melt plastic waste without damage. PET (polyethylene terephthalate) plastic waste processed into paving blocks has a compressive strength of 11.09 MPa and meets Class D quality standards in accordance with SNI 03-0691-199
RANCANGAN MESIN SIKAT KARPET DENGAN MODIFIKASI TABUNG CAIRAN DETERJEN
Full text linkNow, washing carpets no longer requires a lot of human power. Just one person can wash carpets on a large scale at the same time as three human workers. By using this carpet brush machine, the job of cleaning carpets will be easier and faster. The aim of designing this machine is a form of innovation and creativity in a carpet brush machine with an electric motor drive. The machine is made with the addition of a detergent channel tube to make work easier and increase efficiency. The working principle of this carpet brushing machine is that when the motor is turned on, a pulley with a size of Ø 76.2 mm will rotate with a rotation of 1400 rpm, followed by a belt with a size of 24 inches to rotate the pulley on the shaft with a rotation of 703.5 rpm with a pulley size of Ø 152 mm. The rotation will be continued by the shaft, and the brush will rotate to clean up dirt or stains on the carpet. In making this machine, we obtained a motor power of ½ HP and a rotation of 1400 rpm. This machine has dimensions of 580x380x980 mm and uses a belt and pulley transmission with brush components. This carpet washing machine is used for MSME businesses (micro, small and medium businesses
ANALYSIS OF THE EFFECT OF LOAD ON THE TROMOL BRAKING SYSTEM TEST EQUIPMENT THROUGH BRAKE PRESSURE PARAMETERS USING A GX 160 ROBOT TYPE MACHINE
Full text linkTechnological developments are currently increasingly rapid and the impact of these developments is that various kinds of design technologies will emerge, especially in the fields of mechanical engineering and automotive methods. Therefore, a lot of research and analysis is needed, one of which is the braking load on the drum braking test equipment through brake pressure parameters using a GX 160 robot type machine. The aim of this research is to determine variations in the braking test equipment on load. The method in this research is data collection through literature study, observation and experimentation. The type of tool in this research is a drum braking test tool. In this study the load was varied from 0 gr to 1300 gr. The research results showed that torque level values ranged from 1,225 Nm to 6.37 Nm, power values ranged from 21,142 Watts to 652,725 Watts, and different rpm rotations due to additional load would reduce the rotation (rpm) ranging from 1663 to 979 rpm, and It was obtained that Pertamax fuel consumption levels ranged from 0.157 ml/s to 0.862 ml/s and Pertalite fuel consumption ranged from 0.157 ml/s to 0.961 ml/s
ANTENA MIMO-UWB 4X4 DUAL BANDS NOTCHED DENGAN MENGGUNAKAN METODE EBG DAN SLITS
Full text linkIn this paper, a Multiple-Input-Multiple-Output (MIMO) antenna that can work in Ultra-Wideband (UWB) technology is presented. The antenna can work in frequencies of 3.1-10.6 GHz, has dual bands notched, and in small dimensions at once. The antenna is made in size 34 x 34 x 1.6 mm using a 4-element planar monopole antenna with L-shape and C-shape slits on the radiator. This antenna research was designed and simulated using CST Studio Suite 2019. The design results were fabricated for testing through a Vector Network Analyzer and Anechoic Chamber. The ground plane on the rhombic slot-shaped antenna by utilizing the slot on the antenna radiator produces notched bands from simulations at 3.39-3.64 GHz (WiMAX) and 4.57-5.82 GHz (WLAN). The fabricated antenna has a bandwidth impedance value through S1
ANALISIS PERKEMBANGAN PENERAPAN BUILDING INFORMATION MODELING (BIM) PADA PROYEK APARTEMEN DI INDONESIA
Full text linkThe application of Building Information Modeling (BIM) in Indonesian construction has also been carried out in apartment projects. BIM is a process of managing construction during the life cycle of apartment buildings, from planning, design, construction, and use to maintenance. The process The scope of this research is an apartment project built by 3 (three) BUMN construction, namely PT PP (Persero) Tbk (PTPP), PT Wijaya Karya (Persero) Tbk (WIKA), and PT Adhi Karya (Persero) Tbk (ADHI). This study aims to analyze the development of BIM implementation in apartment projects built by the three BUMN contractors. The apartments in this study are apartments with the application of BIM that have been used, not apartments still being built. This research method is carried out with a secondary data content analysis approach, especially the company's annual report that can be accessed by the public from the company's official website, including the identification of apartment projects that have been built and apply BIM to analyze the application of BIM in apartment projects. The results of this study are apartments that have been completed with the application of BIM by PTPP since 2017, ADHI since 2018, and WIKA since 2019. The number of apartments that have been completed with the application of BIM in this study are 4 apartments by WIKA, 5 apartments by PTPP, and 7 apartments by ADHI. All apartments that have been completed with the application of BIM in this study are located on the island of Java
PERBANDINGAN BIAYA PEMBANGUNAN RUMAH SEDERHANA DENGAN RUMAH KONSEP AMAN GEMPA BERDASARKAN ANALISA BENEFIT COST RATIO SKENARIO GEMPA 50 TAHUN
Full text linkIn mitigation to minimize the risk of earthquakes, protection is needed to reduce the impacts. Damage caused by earthquakes can be minimized by planning and building earthquake-resistant houses. To get an earthquake-resistant house, by adding earthquake-strengthening components based “Pedoman Teknis Rumah dan Bangunan Gedung Tahan Gempa and SNI 1726-2019”. This research aims to design earthquake-resistant houses concept for an earthquake period of 50 years and analyze the benefit-cost ratio by comparing residential houses designed with earthquake-safe features to conventional residential houses. The concept of earthquake-resistant houses is carried out in conventional type 120 residential houses. The research results that the cost for a conventional residence is IDR 387,223,000 and the cost of an earthquake house concept is IDR. 407,593,000, where there is a cost difference of IDR 20,370,000 or 5% (more expensive). Benefit-cost ratio value for conventional residential houses for the 50-year earthquake scenario is 0.64; 0.71; 0.77; 0.82; and 0.87 where the value of BCR 1 and the value moves up until the 50th year. So with an additional cost of 5% for earthquake-safe features, this house is considered very effective for the 50-year earthquake period scenario