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Greenation International Journal of Engineering Science
Published by Greenation Research
ISSN : 2986089X     EISSN : 29860326     DOI : https://doi.org/10.38035/gijes
Core Subject : Engineering,
Greenation International Journal of Engineering Science (GIJES) is a peer-reviewed journal managed and published by Greenation Research & Yayasan Global Resarch National. GIJES is published four times a year, in March, June, September, and December. GIJES provides a platform for academics, researchers, and practitioners to publish scientific articles. The scope of articles listed in this journal is related to various topics such as Engineering Education, Civil Engineering, Electrical Engineering, Informatics Engineering, Craft Engineering, Architectural Engineering, Industrial Engineering, Mechanical Engineering, Environmental and Safety Technology, Basic Chemical Engineering, and Applied Chemistry, Transportation Engineering, Geology & Mining Engineering, Marine & Naval Engineering, and other related engineering fields.
Articles 131 Documents
Damage Analysis of Accommodation Space Refrigerator in Mv. Energy Pan Rifqi Bahreysy Affandi; Hartaya; Agus Leonard togatorop; Baihaqi Baihaqi
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i3.51

Abstract

Ships play an important role in the distribution of goods and passengers. Inside the ship there is a refrigeration machine that is used for food or other accommodation. This research examines the causes of damage to the thermal expansion valve, the emergence of frost on the evaporator pipe and reduced lubricating oil in the compressor cooling machine accommodation space. The research objective of this research is to determine the cause of damage to the thermal expansion valve, the emergence of frost on the evaporator pipe and reduced lubricating oil in the compressor. This type of research is qualitative. From the results of the study it was concluded that the cause of damage to the thermal expansion valve was the blockage of the orifice by dirt and the spring not working on the thermal expansion valve.
Causes of The Failure of The Reciprocating Bilge Pump in Supporting The Bilge Transfer Process on Mv. Amanah Halmahera Amc Akbar Yunez Husen; Diah Zakiah; M. Nurdin; Maurirz Sibarani
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i3.52

Abstract

The reciprocating bilge pump is an important auxiliary device in the bilge system in the engine room which functions to pump bilge from the bilge tank or engine room gutter to the OWS (Oily Water Seperator) and forward it to the ship's overboard. Reciprocating bilge pump is a type of reciprocating pump (piston pump) which is widely used for pumping viscous liquids or water mixed with oil. This pump generally consists of a pump housing or pump cylinder in which there is a plunger or piston which works by moving from TMB (Bottom Dead Point) to TMA (Top Dead Point) to suck liquid into and push it back out of the cylinder. This study aims to find out the causes of the problems and the efforts that can be made on the reciprocating bilge pump so that it can restore the performance of the reciprocating bilge pump. The research method that the authors used in compiling this research is a qualitative descriptive research. While data analysis is to identify the data set that has been obtained, so that the data can be analyzed and the purpose is analyzed in order to get a clearer picture in the preparation of this research both from the problems and the final results. It is hoped that this research research can produce ideas, solutions and appropriate problem solving, both in observing and handling the problems raised in this research. Based on research on the reciprocating bilge pump at MV. Amanah Halmahera AMC this pump is not working. This is caused by the release of the piston head from the piston rod so that there is no pressure on the pump and the check valve does not work properly so that it is difficult for the fluid to be sucked into the pump chamber. To prevent this problem, it can be done by reinstalling the check valve and cleaning the check valve.
Efforts to Optimize Injector Performance for The Combustion Process in The Diesel Generator on The Mt. Gas Patra 3 Wildan Ardhika K; Jaya Alamsyah; Effendi Effendi; Brenhard Mangatur Tampubolon
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i3.53

Abstract

The injector is a component that functions to atomize fuel in the combustion process, the performance of this injector is very influential on whether or not the combustion process is complete in a diesel generator. The combustion process is very important so that the diesel generator gets optimal performance so that it can properly supply the electricity needs on board. The research method used is descriptive qualitative using data analysis techniques using fishbone diagrams and using data collection techniques through interviews, observation and documentation studies. The indications that appear about the not optimal fogging is the high temperature of the exhaust gas, the exhaust gas is black in color and detonation appears. After analysis, several causes were found, one of which was a lack of pressure on the injector.
Carbon Reserve Potential, Carbon Dioxide Absorption Capacity, and Oxygen Release in The Conservation Forest of Kamojang, West Java Dadang Maulana Abdul Ghani; Raizal Fahmi Solihat; Sri Wilujeng
Greenation International Journal of Engineering Science Vol. 1 No. 2 (2023): (GIJES) Greenation International Journal of Engineering Science (June 2023)
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i2.90

Abstract

This research aims to identify and measure the carbon reserve potential, carbon dioxide absorption capacity, and oxygen release of tree vegetation in the conservation forest area of Kamojang, West Java. The research method includes field data collection by measuring tree biomass and specific gravity analysis, using systematic sampling techniques to determine research plots. The results of the study indicate that the Cikaro and Cibeunying blocks have a potential carbon reserve of approximately 202,577 tons, a karbon dioxide absorption capacity of around 742,781 tons, and an oxygen release of about 540,132 tons. Tree species such as Pinus (Pinus merkusii), Kibeureum (Dystilium stellare), Manglid (Maglietia glauca), Puspa (Schima wallichii), and Ki Badak (Fagraea fragrans) contribute the most to the total carbon amount. This research provides essential information for the management of the Kamojang conservation forest area in forest management policies as a crucial carbon reserve source for climate change mitigation.
Design and Realization of Smart Plug Based On QR Code and WIFI Access Annenta Gistya Sudiartama; Denny Darlis; Aris Hartaman
Greenation International Journal of Engineering Science Vol. 1 No. 2 (2023): (GIJES) Greenation International Journal of Engineering Science (June 2023)
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i2.91

Abstract

The traditional electrical outlet has evolved with the emergence of "smart plugs," which are WiFi-based devices controlled through communication networks. Many innovations and studies have explored the use of smart plugs for remote load control via the internet and some even utilize renewable energy sources like solar power. In this research, we present a smart plug equipped with a QR code control feature, allowing users to manage connected loads efficiently. Additionally, the smart plug includes sensors to measure power consumption, displaying real- time data on the connected devices. Our smart plug system incorporates an ESP32 microcontroller as the core unit and ACS712 and ZMPT101B sensors for electric current and voltage measurements, respectively. The parameters calculated are electric current and voltage, enabling users to monitor energy consumption accurately. Through rigorous testing, we evaluate the accuracy of the ACS712 and ZMPT101B sensors. The results indicate a 11,39% error for electric current measurements using the ACS712 sensor and a 0,022% error for voltage measurements with the ZMPT101B sensor. This research introduces an innovative smart plug that allows control via a QR code and provides real-time power and load information.
Smart Agriculture: Optimizing Soybean Cultivation Through Technology In Crop Monitoring Harun Sujadi; Ida Marina; Engkos Koswara; Kovertina Rakhmi Indriana; Dety Sukmawati
Greenation International Journal of Engineering Science Vol. 1 No. 2 (2023): (GIJES) Greenation International Journal of Engineering Science (June 2023)
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i2.92

Abstract

The objective of this study is to optimise the productivity of soybean production through the integration of agricultural technologies inside plant monitoring systems. The objective of incorporating technology is to enhance the monitoring and management processes of soybean crops, with the ultimate goal of improving productivity and boosting harvest yields.This paper presents a proposal for the use of diverse agricultural technologies, including soil sensors, environmental sensors, drones, and data analysis based on artificial intelligence. Soil and environmental sensors are utilised for the purpose of monitoring soil conditions, moisture levels, and weather conditions in the vicinity of soybean agricultural fields. Drones are employed for comprehensive terrestrial surveillance and prompt identification of botanical concerns. The utilisation of artificial intelligence in data analysis involves the processing of information gathered from sensors and drones, enabling the provision of real-time insights and recommendations to farmers.By incorporating these agricultural technologies, it is anticipated that farmers would be able to effectively and efficiently utilise resources such as water, fertilisers, and pesticides, ensuring optimal usage in terms of precision and timeliness. Furthermore, the implementation of precise monitoring techniques and prompt responses to alterations in plant conditions within agricultural settings can effectively mitigate the potential hazards associated with crop loss resulting from pest or disease infestations.
Optimizing Soybean Cultivation Efficiency through Agricultural Technology Integration in Plant Monitoring System Ida Marina; Harun Sujadi; Kovertina Rakhmi Indriana
Greenation International Journal of Engineering Science Vol. 1 No. 3 (2023): (GIJES) Greenation International Journal of Engineering Science (September 2023
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i2.93

Abstract

Agriculture plays a crucial role in fulfilling global food needs and promoting societal well-being. Soybean cultivation, as a strategic food crop, offers essential protein sources for humans and livestock while enhancing soil fertility through nitrogen fixation. However, the increasing global demand for soybeans poses challenges for farmers, particularly in terms of cultivation efficiency. These challenges are further exacerbated by climate change, land use, disease threats, and commodity price fluctuations. The advancement of agricultural technology, such as IoT, remote sensing, artificial intelligence, and predictive modeling, holds significant promise in improving soybean cultivation's efficiency and productivity. Precision agriculture emerges as a pivotal approach to support agricultural efficiency, productivity, and profitability. Expert systems and image processing techniques like artificial neural networks and genetic algorithms play a vital role in implementing precision agriculture. Information technology's use in precision agriculture focuses on data collection, analysis, and application in farming. Despite considerable research proposing technology integration in soybean cultivation, comprehensive studies on its potential integration remain limited. Thus, this international research aims to analyze the prospects of integrating agricultural technology into plant monitoring systems. Its primary goal is to contribute to the development of sustainable and efficient agricultural practices, considering environmental conditions and natural resource potentials. The findings will serve as a strategic foundation for agricultural stakeholders and policymakers to enhance soybean cultivation's sustainability, productivity, and quality, while effectively addressing global food challenges in the future.
The Influence of Tourist Facilities, Experiential Marketing and The Role of Tourism Ambassadors on Tourist Visiting Satisfaction Mayroza Wiska; Eka Ermawati; Dini Elida Putri; Alex Ferdinal; Fenisi Resty; Yuhelvi Deswita
Greenation International Journal of Engineering Science Vol. 2 No. 2 (2024): (GIJES) Greenation International Journal of Engineering Science (June - Agustus
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v2i2.102

Abstract

The purpose of the study was to determine how much influence tourist facilities, experiential marketing and the role of tourism ambassadors on tourist visitor satisfaction of Alinia Farm &; Park Dharmasraya Regency in 2022. The method in this study is quantitative method and data collection using questionnaires assisted by SPSS version 20. Sampling in research is probability sampling which is a sampling technique that provides equal opportunities for each element (member) of the population to be selected as a member of the sample. The sampling technique used in this study is purposive sampling using accidental sampling method. Accidental sampling is a sampling technique based on chance. The population in this study was visitors to the Alinia Farm & Park tourist attraction, which was 73,142 visitors. The respondents sampled were 346 respondents. The results of the study showed that partially (t test) it was proven that tourist facilities had a positive and significant effect on visiting satisfaction with t value count > t table (5.633 > 1.966925), experiential marketing had a positive and significant effect on visit satisfaction with t value count > t table (4.659 > 1.966925) and the role of tourism ambassadors had a positive and significant effect on visiting satisfaction with t value calculate t > t table (6.398 > 1.966925) and simultaneously (test F) together with tourism facilities, experiential marketing and the role of tourism ambassadors have a significant effect on visit satisfaction with F value calculated > F table (79,443 > 2,398). The Adjusted R2 value is 0.406 which means that all independent variables can affect 40.6% of the dependent variable. The remaining 59.4% could be influenced by other factors not tested in the study.
Analysis of Spring Damage in the Chamber Actuator Raven Rullyapatra Nasution; Rudi Saputra
Greenation International Journal of Engineering Science Vol. 2 No. 2 (2024): (GIJES) Greenation International Journal of Engineering Science (June - Agustus
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v2i2.116

Abstract

Spring, which has the function to help the valve operate so that it can be fully closed and fully open, has a very vital role in the continuous operation of the chemical industry. When a problem occurs, muddy fluid is found in the spring actuator chamber which causes the valve not to operate and not be in full close condition. The purpose of this study is to find the causes of the Spring Actuator failure in the chemical industry. This research was specifically directed at a broken Spring Actuator to determine the cause of the failure/damage. The tests carried out were: fractography, metallography (microstructure), chemical composition analysis, hardness test, and scanning electron microscope (SEM) energy dispersive x-ray (EDX) analysis. The results of the macrographic examination showed that the spring fracture had 2 fracture surface patterns. Spring B has a brittle fracture where the shape of the fracture is more even and does not show residual fracture. While springs A, C, and D experienced ductile fracture. The results of metallography found corrosion products in the surface area of the spring. There are non-metallic inclusions in the form of sulfides and microvoids. The microstructure is tempered martensite. From the results of the chemical composition of the spring material, it still meets the JIS G 4801 grade SUP 12 standard with the addition of Silicon and Chrome. The hardness test results have a hardness value of 518.4 HV. The spring hardness value is above the maximum hardness limit of SUP 12 material. The SEM test results of the spring sample show the presence of non-metallic inclusions with elongated morphology and micro-sized voids. The results of the EDX test showed a Sulfur content of 4.71 wt% in non-metallic inclusions and the content of Fe and O elements in the defective holes which were corrosion products. From this study, it is known that the factors causing damage to the springs are manufacturing process errors, material defects, and corrosive environments.
Mapping of Regional Potential and Competitiveness in Constructing a Self-Reliance Model for Mentawai Indigenous Communities Margaretha Ardhanari; Sebastianus Widanarto Prijowuntato; Paulus Sukapto; Visi Saujaningati Kristyanto; Marihot Nainggolan
Greenation International Journal of Engineering Science Vol. 1 No. 4 (2023): (GIJES) Greenation International Journal of Engineering Science (December 2023)
Publisher : Greenation Research

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v1i4.136

Abstract

This paper aims to map the potential of the region and competitiveness in constructing a model of self-reliance for the Mentawai indigenous peoples. Design/methodology/approach Techniques of collecting data by interviewing and studying documents and archives. The target respondents are government officials, tribal chiefs, teachers, clergy, and community leaders. Findings - The gross enrollment rate (APK) for elementary schools in 2021 is 115.91 percent; SMP APK is 86.54 percent; and high school APK of 67.07 percent. Practical implications collect data on Mentawai in an effort to build a recommendation namely 1) training for UMA members to determine appropriate training for UMA members, such as services, craft training, food processing, culture, religion, and so on; 2) Recording and enlivening the cultures that exist in UMA; 3) increasing capacity building and developing the character of UMA members, 3) Awareness of tourism potential; 4) Development of internet network and digital literacy. Originality/value this study analyzes a real picture of the Mentawai situation and conditions in an effort to develop so that Mentawai is able to develop in keeping pace with developments with other regions.

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