Garuda - Garba Rujukan Digital

PROSES PERANCANGAN MESIN PENEPUNG BIJI-BIJIAN DENGAN METODE VDI 2221 Sumiyanto ,; Rudi Saputra
SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI Vol 32 No 2 (2022): Sainstech : Jurnal Penelitian dan Pengkajian Sains dan Teknologi
Publisher : Institut Sains dan Teknologi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37277/stch.v32i2.1300

ABSTRACT The purpose of making a grain cutting machine is to process grains into flour so that it is easy to process in various types of food. This grain cutting machine can also be used as a business field for small and medium micro. The design of this grain cutting machine uses the VDI 2221 method. Using the VDI 2221 method, there are three variations of the choice of grain cutting machines. Of the three variations of the choice of the seed-making machine , the grain is selected the third choice variation because it suits the list of the will and desire of the designer. The grain cutting machine retaining engine uses gasoline motor propulsion using a V belt transmission system. This type of crusher uses a hammer mill as a grain crusher. This grain cutting machine has dimensions of 50 x 80 x 100 cm and has wheels equipped to facilitate mobility so that it can be moved easily. The use and maintenance of the machine is easy to do. Manufacturing costs are cheap and materials are easy to obtain. Keywords : The Grains Cutting Machine, Hammer Mill, VDI Method 2221. Vbelt

Analysis of Spring Damage in the Chamber Actuator Nasution, Raven Rullyapatra; 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 & Yayasan Global Resarch National

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

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.

An Analysis Of Mini Control Timer System For PDAM Water Processing Using Wave Control Method Rudi Saputra; Yopi Andinata; Beni Satria
Jurnal Scientia Vol. 13 No. 04 (2024): Education and Sosial science, September-December 2024
Publisher : Sean Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar

In this study, a mini control timer system was analyzed in PDAM water treatment using the Control Wave method. In a water treatment system, timely control is very important to ensure optimal operational efficiency and water quality. The Control Wave method is applied to regulate and optimize the water treatment process more efficiently through automatic timer-based control. This system allows more flexible adjustments to variations in workload and operational conditions, thereby improving the overall performance of the water treatment process. which involves the development of a simulation model that describes the water treatment process with the integration of a Control Wave-based control system. The simulation results show that this method can improve energy efficiency, reduce downtime, and increase the stability of water treatment operations. In addition, the implementation of Control Wave in this mini control timer system has also been proven to be able to adjust to changes in operational needs dynamically, without sacrificing the quality of the processed water. The findings of this study provide a basis for further improvements in the control system in PDAM water treatment, especially in the use of automation technology to improve process reliability and efficiency.

Analysis of Spring Damage in the Chamber Actuator Nasution, Raven Rullyapatra; 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 & Yayasan Global Resarch National

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

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.

Promotion Development Through Social Media for OTOP Branding: A Community-Based Approach Narimawati, Umi; Siti Kurnia Rahayu; Watcharapong Ratchakulwongwarit; Witchu Aromdee; Sarip hidayat; Muhammad Akhdiyatul Aein; Rudi Saputra
International Journal of Community Service (IJCS) Vol. 4 No. 2 (2025): July-December
Publisher : PT Inovasi Pratama Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55299/ijcs.v4i2.1565

The international community service program entitled Promotion Development Through Social Media for OTOP Branding: A Community-Based Approach was conducted on August 26, 2025, at the Bang Prong Subdistrict Administrative Organization Office, Samut Prakan, Thailand. The main objective of this initiative was to enhance the capacity of OTOP entrepreneurs in understanding branding concepts and utilizing social media as a promotional tool. The methods included a product exhibition, production process demonstrations, and interactive workshops that emphasized content creation, hashtag strategies, and business account management. The results revealed significant improvements in participants’ comprehension of branding, their skills in generating promotional content, and their confidence in conducting online promotion. Furthermore, the program demonstrated that community-based approaches foster participatory learning and effective peer-to-peer exchange. The cross-border collaboration between Universitas Komputer Indonesia and Thai Global Business Administration Technological College also enriched the program by ensuring international knowledge transfer adapted to local contexts. In conclusion, the initiative highlights the importance of integrating modern branding practices with local wisdom to strengthen OTOP competitiveness in the digital era and to support sustainable community-based entrepreneurship.

Title

Found 5 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 5 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 5 Documents
Search