cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
M. Yusuf
Contact Email
yusuf@pnb.ac.id
Phone
+62361-701981
Journal Mail Official
logic@pnb.ac.id
Editorial Address
Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali, Jl Kampus Bukit Jimbaran, Badung, Bali, Indonesia
Location
Kab. badung,
Bali
INDONESIA
Logic : Jurnal Rancang Bangun Dan Teknologi
Published by Politeknik Negeri Bali
ISSN : 1412114X     EISSN : 25805649     DOI : https://doi.org/10.31940/logic.v21i3
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Logic : Jurnal Rancang Bangun dan Teknologi is a peer-reviewed research journal published by Unit Publikasi Ilmiah, Pusat Penelitian dan Pengabdian Masyarakat, Politeknik Negeri Bali, aiming at promoting and publishing original high quality research in all disciplines of engineering and applied technology. All research articles submitted to Logic should be original in nature, never previously published in any journal or presented in a conference or undergoing such process across the world. All the submissions will be peer-reviewed by the panel of experts associated with particular field. Submitted papers should meet the internationally accepted criteria and manuscripts should follow the style of the journal for the purpose of both reviewing and editing.
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 18 Documents
 1   2 
Search results for , issue "Vol. 23 No. 1 (2023): March" : 18 Documents clear
Heating Treatment of Incoming Air Combustion Chamber on the E20 Fuel Mixture: Perlakuan panas udara masuk ruang bakar pada campuran bahan bakar E20 Akbar Anugrah Ikhsani; Nurkoyim Kustanto; Boy Arief Fachri
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.49-54

Abstract

This research was conducted to improve engine performance with a mixture of ethanol and gasoline, because the mixture of ethanol and gasoline fuel causes the value of the flash point and evaporation of fuel heat to be higher. To overcome this, the air entering the combustion chamber is carried out by being heated to 26°C (standard), 30°C, 40°C and 50°C, the fuel used is the E20 with engine revolutions of 2000 to 8000 revolutions per minute. The results showed that the highest torque of E20 fuel at 30°C with a value of 9.004 Nm increased by 0.27%. At the highest power, it is located at 30°C with a power of 5.99 kW 0.5%. For the lowest consumption in the 2000 round, it was found in the 30°C temperature treatment with a value of 1.4 Kg / Hp.Hour and for exhaust gas emissions the lowest hydro carbon value was found in the 30°C temperature treatment while the lowest value of carbon monoxide was found at the 50°C temperature treatment. These results show that the air heating treatment can improve engine performance.
Water Conditioning Refrigeration System Design and Construction for Lobster Cultivation Wardika; Yudhy Kurniawan; Hadi Prayitno; Sintya Haula H.
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.1-7

Abstract

This research is to determine the cooling burden of the water conditioning system for lobster conditioning, where water must be conditioned to its temperature by its 21°C conditioning. This device uses steam compression systems precisely by utilizing water conditioning systems to condition water to stay awake at a temperature of 21°C. The method used in this study was to determine the volume of the water tank and its cooling capacity by calculating the load load and calculating the heat load through the walls of the water tank and other heat generated. For lobster cultivation, an air conditioning machine with a capacity of 1/2 PK. From the results of testing the tool for 3 hours, the results of system performance at an evaporation temperature of 15.2 °C and a product temperature of 21 °C obtained a Carnot COP of 7.11, an actual COP of 5.87, and an efficiency of 82.55%. This is in accordance with Design Carnot COP 8, actual COP design of 6.7, and design efficiency of 83%.
Performance Analysis of Public Transport in Gianyar Regency Ida Bagus Wirahaji; I Ketut Sutapa; I Gede Fery Surya Tapa
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.62-67

Abstract

The performance of an urban public transport plays an important role in accommodating population mobility and realizing sustainable transportation. The performance of public transport can be influenced by several factors, including the quality of public transport services themselves and the accessibility of the roads they pass. Service quality concerns arrival frequency, waiting time, travel time and so on. Road accessibility is influenced by the presence of side barriers, such as parking vehicles on the road, vehicles in and out, slow vehicles, and so on. This study analyzes the exogenous latent variables of Service Quality and Road Accessibility that affect the endogenous variables of Public Transportation Performance in Gianyar Regency, especially on the Batubulan-Ubud Terminal Route. The method of collecting community perception data is by distributing 250 questionnaires to respondents who live along the Batubulan-Ubud Terminal Route Corridor. The data analysis method used Statistical Equation Modeling (SEM) AMOS. Validity and reliability tests were carried out using the confirmatory factor analysis (CFA) method. Based on the results of the analysis, it was found that the quality of public transportation services had a significant positive effect, with p value = 0.18 <0.05, path coefficient 0.049. Road accessibility also has a significant positive effect, with p value = 0.035 < 0.05, coefficient. line 0.225. The Goodness of Fit test also fulfills parameters such as: Chi-square count 66.27 < Chi-square table 81.381; Probability 0.332 0.05; CMIN/DF 1.069 2.00; GFI 0.961 0.960; AGFI 0.943 0.90; TLI 0.995 0.950; CFI 0.995 0.95; RMSEA 0.000 0.08 all meet. The performance of public transportation on the Batubulan-Ubud Terminal Route is considered very bad due to poor service quality and road accessibility.
Strength Analysis on Horizontal Axis Wind Turbine Propeller Blade PVC Pipe with Angled Ends Aji Tisa; Hangga Wicaksono; Bagus Wahyudi
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.23-31

Abstract

The basic problem of appropriate wind energy technology is how to design wind turbines from materials that are easily available on the market, one solution is PVC pipe as the blade material. For this reason, it is necessary to analyze the working stress that occurs in the blade construction, so that the PVC pipe propeller wind turbine is safe when applied in society. The purpose of this study was to determine the effect of wind speed and tip elbow width on working stress. The simulation test method uses SolidWorks Flow Simulation Software and then the results are exported to Static Simulation to determine the strength of the material. Simulation tests were carried out with wind loads on PVC pipe propellers with wind speeds of 5 m/s, 6 m/s, and 7 m/s and elbow tip widths of 100 mm, 110 mm, and 130 mm. The results of the maximum stress value in the wind turbine simulation test with the addition of an elbow tip were obtained at a wind speed of 7 m/s and an elbow tip width of 130 mm
Prototype Design of E-BMX 2000 Watt Electric Motorcycle Utsman Syah Amrullah; Rilis Eka Perkasa; Muhammad Fakhruddin
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.55-61

Abstract

Limited supplies of fossil fuels such as gasoline, diesel and LPG resulting in vehicles that use internal combustion would be abandoned and replaced by electric vehicles. There have been many coverages that have reviewed the advantages of electric vehicles, where the advantages of electric vehicles include simple mechanical components, relatively low pollution, low noise levels, and could become a solution for future vehicles for an environmentally friendly life. This study aims to design and build a motorcycle prototype, a work which includes the design and manufacture of a BMX type motorcycle frame powered by a 2000 watt BLDC motor power, and testing the performance of the prototype using dynotest and compared to conventional motorcycles to compare the performance characteristics of both motorcycle. The frame is designed using Solidworks, then manufactured by cutting, bending, drilling, welding, and painting process. Mechanical components include frames that use mild steel pipes with diameter of 1.5 inches and thickness of 1.2 mm. Other mechanical components use components available on the market, such as headsets, front forks, disc brakes, hydraulic caliper brakes, and wheel assemblies. The electrical components used are 48V 2000-watt QS Motor, 60V 15 Ah Lithium battery, Yuyangking 80A controller and electric gas throttle with voltage indicator. The results of the dynotest show that the maximum torque reaches 204 NM (roller) which is achieved at 976 rpm. The maximum speed reaches 69.7 Km/hour. The range of the single-charged battery could cover a distance of 30 km. The characteristic of 2000 Watt E-BMX is very powerful at low revs and stable at high revs, shown by achieving maximum torque at low RPM. To save battery life, it is necessary to limit the remaining voltage, which is done at 55 Volts, so that the battery do not completely run out. It could be concluded that electric motorcycle developed in this study is suitable for use in urban areas (paved tracks or light off-road) with determined mileage and the path travelled, and battery management is needed so the battery does not run out in the middle of a trip.  
Designing of Goat’s Food Processing Tools Using Quality Function Deployment Method Isana Arum Primasari; Hapsoro Agung Jatmiko; Edo Rizki Drianbodo; Oldy Riswan
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.32-41

Abstract

Goat, is one of the most consume meat in Indonesia, it provides much nutrition to the eater and highly recommended by several nutritionist. One of the most critical part in breeding goats, is feeding them, this process is one of the most time consuming and takes a lot of effort, as the food preparation requires a lot of item to mix. Breeder, nowadays mostly feed their goat with “dry food” which are mostly consist of concentrate, this process unfortunately still done manually which, not only takes time but also some chances of potential hazard because most of the concentrate are heavy and huge. This research takes place in Rejodani District in Sleman Regency thus the sample and population of the research are goat breeder around the area. Using Quality Function Deployment method, authors intended to create a new food processing tools for food preparation of the goats. Using the concept screening and selection, out of 3 proposed design, the best design is chosen, followed by validation process to the respondents of the research. The final design of the food processor is the one that could increase productivity of the breeder and less chance of hazard.
Design of Energy Education Media For Solar and Wind Power Plants at Bomo Beach, Banyuwangi Regency Adi Pratama Putra; Gatut Rubiono; Rezki Nalandari; Megandhi Gusti Wardhana
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.16-22

Abstract

Bomo Beach, which is managed by community groups to become a tourist attraction, has the potential for renewable energy in the form of solar and wind energy. This potential can be harnessed and converted into electrical energy. This study aims to design energy education media for solar power plants and wind power plants at Bomo beach, Banyuwangi regency. The design is carried out in accordance with the natural management of tourist beach. The power plant designed is the integration of the solar power plant system (PLTS) and the wind power plant system (PLTB). Solar power plants use solar panels while PLTB uses horizontal shaft wind turbines and vertical shafts. The energy housing is made as a power store with a 12 volts battery. The design results show that the integration design of solar power plants and PLTB can be applied as an energy education media.
Simulation Design Of Animal Waste Treatment Installation System Using Water Level Control System I Nyoman Gunung; I Nengah Ludra Antara; I Nyoman Sutarna; Kadek Agus Mahabojana D. P.; Made Dika Nugraha
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.8-15

Abstract

The simulation design of this animal waste treatment plant is a design that applies the sewage treatment plant system which is made to cope with environmental pollution, especially rivers due to indiscriminate disposal of animal waste. Making this animal waste treatment plant provides information to readers or the public about how to design an animal waste treatment plant system and the performance of the sewage treatment system so that people know how to deal with environmental pollution caused by the livestock themselves. The manufacture of this installation system uses data collection methods from direct farmers and theories obtained from books, journals, and articles related to sewage treatment plant theory, plumbing, electricity, and others. Finally, the data was collected by testing the animal dung waste treatment system where the test data was taken from the pH content of the water used for processing the animal dung waste treatment system. The test results on the sewage treatment plant system concluded that in order to obtain optimal results or water pH content, namely the pH content of 6, it is necessary to deposit animal manure between two to three days, while the maximum processing of this system is the pH content of 6.5. and processing of animal manure, which is on the fourth day to get the maximum pH content.
Analysis of Labor Productivity in Floor Plate Work Using The Work Sampling Method: Case Study: Udayana University Faculty of Medicine Building and The Calna Villa Made Novia Indriani; I Nyoman Suta Widnyana; I Putu Agus Ari Mahendra
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.42-48

Abstract

Labor productivity is very important in carrying out a job, in the field of construction output can be seen from the quantity of work that has been done, while input is the amount of resources used such as labor. This study aims to determine the amount of labor required per 1 m2 (OH) and the standard time for labor productivity in completing 1 m2 of floor slab work. The method of collecting primary data is the source of research data obtained directly, such as the number of workers and observation of sampling data, while secondary data is obtained from projects such as working drawings. The data is then processed using Microsoft Excel. This research is a type of quantitative research with work sampling method. From the results of research on floor slab work in the Udayana University Faculty of Medicine Building Construction project, it shows that the calculation of the volume of labor per day (OH) requires 0.011 OH masons and 0.011 OH workers and the results of calculating the standard time to complete 1 m2 of floor slab work is 3.15 minutes/m2 . The Calna Villa project shows that the calculation of the volume of labor (OH) requires 0.039 OH masons and 0.039 OH workers and the results of calculating the standard time to complete 1 m2 of floor slab work is 10.37 minutes/m2.
Heating Treatment of Incoming Air Combustion Chamber on the E20 Fuel Mixture: Perlakuan panas udara masuk ruang bakar pada campuran bahan bakar E20 Akbar Anugrah Ikhsani; Nurkoyim Kustanto; Boy Arief Fachri
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.49-54

Abstract

This research was conducted to improve engine performance with a mixture of ethanol and gasoline, because the mixture of ethanol and gasoline fuel causes the value of the flash point and evaporation of fuel heat to be higher. To overcome this, the air entering the combustion chamber is carried out by being heated to 26°C (standard), 30°C, 40°C and 50°C, the fuel used is the E20 with engine revolutions of 2000 to 8000 revolutions per minute. The results showed that the highest torque of E20 fuel at 30°C with a value of 9.004 Nm increased by 0.27%. At the highest power, it is located at 30°C with a power of 5.99 kW 0.5%. For the lowest consumption in the 2000 round, it was found in the 30°C temperature treatment with a value of 1.4 Kg / Hp.Hour and for exhaust gas emissions the lowest hydro carbon value was found in the 30°C temperature treatment while the lowest value of carbon monoxide was found at the 50°C temperature treatment. These results show that the air heating treatment can improve engine performance.

Page 1 of 2 | Total Record : 18

 1   2 

Filter by Year

2023 2023


Reset
Filter By Issues
All Issue Vol. 25 No. 3 (2025): November Vol. 25 No. 2 (2025): July Vol. 25 No. 1 (2025): March Vol. 24 No. 3 (2024): November Vol. 24 No. 2 (2024): July Vol. 24 No. 1 (2024): March Vol. 23 No. 3 (2023): November Vol. 23 No. 2 (2023): July Vol. 23 No. 1 (2023): March Vol. 22 No. 3 (2022): November Vol. 22 No. 2 (2022): July Vol. 22 No. 1 (2022): March Vol. 21 No. 3 (2021): November More Issue