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All Journal Jurnal Energi Dan Manufaktur Teknik Mesin "TEKNOLOGI" Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Inovasi Teknologi Pendidikan JURNAL PENELITIAN SAINTIKA FLYWHEEL : Jurnal Teknik Mesin Untirta Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) Jurnal RESISTOR (Rekayasa Sistem Komputer) Jurnal Teknik TEKNIKA Jurnal Teknik Elektro dan Komputasi (ELKOM) Jurnal Paedagogy Edunesia : jurnal Ilmiah Pendidikan Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Riset Rumpun Ilmu Teknik (JURRITEK) International Journal of Innovation in Mechanical Engineering and Advanced Materials Journal Industrial Engineering and Management (JUST-ME) Journal of Innovative and Creativity Jurnal Abmas Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Ega Taqwali Berman
Universitas Pendidikan Indonesia
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Social Sciences Transportation Other

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From School to Industry : The Relevance of Vocational School Competencies in Machining Technology to Manufacturing Industry Needs Zhahara, Zhahrotul; Solehudin, Agus; Berman, Ega Taqwali
Jurnal Paedagogy Vol. 12 No. 3 (2025): July
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/jp.v12i3.15353

Abstract

This study aims to analyze the relevance of technical machining skills competencies at SMK Negeri 1 Karawang to labor needs in the manufacturing industry sector. The research method used is a survey with a quantitative approach. The research instrument is a questionnaire given to 68 students in the 12th grade of the technical machining program. The data analysis technique used was descriptive statistical analysis, calculating the percentage of respondents' answers based on the Likert scale to evaluate the alignment of the curriculum and graduates' competencies with industry demands. The research results indicate that the competencies possessed by graduates of SMK Negeri 1 Karawang are highly relevant and aligned with the demands of the job market. This is evident from the curriculum content alignment rate, which reached 85%. Specifically, graduates' competencies in cognitive aspects achieved a percentage of 86%, while psychomotor aspects also scored 86%. Meanwhile, the affective aspect received the highest score at 88%. However, there are still shortcomings in the mastery of soft skills, such as the 5S principles (commonly understood as Sort, Set in order, Shine, Standardize, and Sustain, though adapted here for workplace politeness and courtesy as Smile, Greeting, Politeness, and other relevant workplace behaviors might be more contextually defined) and 5P (Precision, Productivity, Maintenance, Prevention, and Improvement), as well as workplace safety culture (Safety) and work ethics. These findings recommend strengthening soft skills in the curriculum, enhancing collaboration between schools and industry, and conducting regular curriculum evaluations to ensure that graduates' competencies remain aligned with the needs of the job market.
Mengembangkan SDM karang taruna dan posdaya melalui pelatihan keterampilan berbasis lifeskill Kamin Sumardi; Ega Taqwali Berman; Ridwan Adam Muhammad Noor
Jurnal Abmas Vol. 16 No. 1 (2016): Jurnal Abmas
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/abmas.v16i1.38801

Abstract

Pemuda usia produktif di desa Cikidang jumlahnya cukup besar dan sebagian besar tidak tamat SLTP. Mereka tidak memiliki pengetahuan dan keterampilan selain cara bertani yang diturunkan dari orang tuanya. Sementara itu, lapangan pekerjaan di bidang pertanian semakin sedikit seiring bertambah sedikitnya lahan pertanian. Hasil survei pendahuluan pelatihan yang banyak diminati calon peserta yaitu mekanik sepeda motor dan las listrik. Pelatihan ini bertujuan untuk meningkatkan pemahaman, pengetahuan dan keterampilan praktis dalam bidang mekanik sepeda motor dan las listrik. Target dan dari pelatihan ini yaitu peserta memiliki pengetahuan dan keterampilan praktis sebagai mekanik sepeda motor tingkat dasar dan las listrik. Pengetahuan dan keterampilan tersebut dapat langsung digunakan baik untuk bekerja, maupun langsung mendirikan usaha mandiri. Khalayak sasaran adalah para pemuda usia produktif yang tergabung di karang taruna dan posdaya. Kegiatan ini bermitra dengan karang taruna Binangkit dan posdaya Alifah di desa Cikidang Kecamatan Lembang. Metode pelatihan yang digunakan yaitu persuasif, kolaboratif dan partisipatif. Materi pelatihan meliputi tiga aspek yaitu pengetahuan, sikap dan keterampilan melalui latihan praktis serta magang. Ketiga aspek tersebut diberikan secara proporsional dan berimbang. Hasil pelatihan menunjukkan bahwa minat dan motivasi mereka tergolong baik. Kepuasan peserta terhadap pelaksanaan kegiatan ini sebesar 93%. Seluruh peserta dinyatakan sudah memiliki pengetahuan, sikap dan keterampilan dalam tune-up sepeda motor dan las listrik tingkat dasar.
Mengembangkan SDM karang taruna dan posdaya melalui pelatihan keterampilan berbasis lifeskill Kamin Sumardi; Ega Taqwali Berman; Ridwan Adam Muhammad Noor
Jurnal Abmas Vol. 17 No. 1 (2017): Jurnal Abmas
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/abmas.v17i1.36635

Abstract

Pemuda usia produktif di desa Cikidang jumlahnya cukup besar dan sebagian besar tidak tamat SLTP. Mereka tidak memiliki pengetahuan dan keterampilan selain cara bertani yang diturunkan dari orang tuanya. Sementara itu, lapangan pekerjaan di bidang pertanian semakin sedikit seiring bertambah sedikitnya lahan pertanian. Hasil survei pendahuluan pelatihan yang banyak diminati calon peserta yaitu mekanik sepeda motor dan las listrik. Pelatihan ini bertujuan untuk meningkatkan pemahaman, pengetahuan dan keterampilan praktis dalam bidang mekanik sepeda motor dan las listrik. Target dari dan dari pelatihan ini yaitu peserta memiliki pengetahuan dan keterampilan praktis sebagai mekanik sepeda motor tingkat dasar dan las listrik. Pengetahuan dan keterampilan tersebut dapat langsung digunakan baik untuk bekerja, maupun langsung mendirikan usaha mandiri. Khalayak sasaran adalah para pemuda usia produktif yang tergabung di karang taruna dan posdaya. Kegiatan ini bermitra dengan karang taruna Binangkit dan posdaya Alifah di desa Cikidang Kecamatan Lembang. Metode pelatihan yang digunakan yaitu persuasif, kolaboratif dan partisipatif. Materi pelatihan meliputi tiga aspek yaitu pengetahuan, sikap dan keterampilan melalui latihan praktis serta magang. Ketiga aspek tersebut diberikan secara proporsional dan berimbang. Hasil pelatihan menunjukkan bahwa minat dan motivasi mereka tergolong baik. Kepuasan peserta terhadap pelaksanaan kegiatan ini sebesar 93%. Seluruh peserta dinyatakan sudah memiliki pengetahuan, sikap dan keterampilan dalam tune-up sepeda motor dan las listrik tingkat dasar.
PENERAPAN VALUE STREAM MAPPING UNTUK MENGIDENTIFIKASI WASTE DAN MENGURANGI KETERLAMBATAN PADA PROSES PENGADAAN DI PT XYZ Daffa Saepul Prawira; Ega Taqwali Berman; Saskia Kanisaa Puspanikan
Journal of Innovative and Creativity (Joecy) Vol. 6 No. 2 (2026)
Publisher : Fakultas Ilmu Pendidikan Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joecy.v6i2.11974

Abstract

Pengadaan barang di perusahaan besar seperti PT XYZ menjadi aspek utama yang mendukung kelancaran operasional dan keberhasilan bisnis. Dalam pelaksanaannya, berbagai metode diterapkan untuk memastikan efisiensi dan mengurangi potensi pemborosan. PT XYZ telah mengimplementasikan dua pendekatan utama dalam proses pengadaannya, yaitu metode manual dan otomatis. Pendekatan manual mencakup langkah-langkah seperti pencarian vendor, pembuatan komparasi vendor, hingga proses persetujuan yang menggunakan tanda tangan fisik. Di sisi lain, metode otomatis telah diterapkan dalam bentuk sistem berbasis website yang memungkinkan pemantauan alur kerja secara real-time
Viability of R-290 Refrigerant as Residential AC Retrofit: Effect of Charge Mass Variations Irham Aulia; Haftirman Haftirman; Ega Taqwali Berman
International Journal of Innovation in Mechanical Engineering and Advanced Materials Vol. 7 No. 2 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/ijimeam.v7i2.30904

Abstract

The growing concerns over ozone depletion and global warming caused by refrigerants have led to the search for environmentally friendly alternatives. This study evaluates the impact of varying R-290 refrigerant charge masses on the performance of a wall-mounted residential air conditioner using the drop-in substitute method. A ¾ HP residential AC unit originally charged with 550 grams of R-22 refrigerant was retrofitted with R-290 and tested at charge masses of 140 grams, 165 grams, and 190 grams—approximately 25%, 30%, and 35% of the original R-22 charge, in accordance with the commonly applied “one-third rule.” The results showed that retrofitting with R-290 increased the Refrigeration Effect (RE) by up to 75%, Compression Work (Wc) by 68%, and Coefficient of Performance (COP) by up to 18%. The system with a 25% refrigerant charge was unable to reach the set temperature due to a 23% reduction in cooling capacity, while the 30% charge showed a 10% reduction. The 35% refrigerant mass retrofit proved the most suitable, achieving adequate cooling capacity, an 18% increase in COP, and a 14% reduction in power consumption. Additionally, the retrofit resulted in an indirect CO₂ emission reduction of 1.15 metric tons annually, highlighting the environmental and energy-saving advantages of using R-290. These findings provide empirical validation of the one-third rule for refrigerant mass variation in R-290 retrofits and offer valuable insights into optimizing performance and efficiency in residential AC units, with significant energy and environmental benefits.
Penerapan Six Sigma Dan Kaizen Pada Produk Cacat Benang Di PT XYZ Vista Sukma Sonata; Ega Taqwali Berman; Aulia Zikri Rahman
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 5 No. 2 (2025): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v5i2.6473

Abstract

Abstract. supporting the supply chain of the garment and textile industry in Indonesia. PT XYZ established in 1975, has grown into a leading manufacturer of spun yarn, polytethlene terepthalate (PET), and polyester. The company faces challenges in controlling product defects. Therefore, qualty control aims to ensure that all product meet the specified standards. By implementing Six Sigma dan Kaizen methods, the company can identify and address the causes of product defects, thereby improving overall production. The calculation results show a DPMO of 25.45 with a sigma level 5.87, indicating that the yarn products are at a 5 sigma level, approaching 6 sigma. The Kaizen Five Step Plan and Kaizen Five M-Checklist concepts have produced solutions such as monitoring the production process, employee evaluation, continous training, cleanliness and machine maintenance audits, and SOP implementation audits.
Performance Investigation of Cooling Machine Practice Props After Retrofitted by Natural Refrigerants Mutaufiq; Sulistyo, Hendri; Sumardi, Kamin; Berman, Ega Taqwali; Wiyono, Apri
Jurnal Teknik: Media Pengembangan Ilmu dan Aplikasi Teknik Vol 20 No 2 (2021): Jurnal Teknik - Media Pengembangan Ilmu dan Aplikasi Teknik
Publisher : Fakultas Teknik - Universitas Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jt.vol20no2.419

Abstract

Resizing the main components of the cooling machine needs to be done after being retrofitted with a new refrigerant. This is done to improve the performance of the cooling engine. In this study, we would like to investigate the effect of adjusting the main components of the cooling machine performance after using new environmentally friendly refrigerants. The experiment was designed on a refrigerator that uses R-134a as a working fluid. The type of hydrocarbon refrigerant used to substitute R-134a is Musicool-22 (MC-22). The cooling load in the evaporator cabin is a salt solution. Testing is done in two stages. In the first stage, the refrigerator operates in its original condition (R-134a with CT1 as the expansion valve). In the second stage, the working fluid R-134a is retrofitted with MC-22 with adjustments to its main components into several variations. Furthermore, the refrigerator performance is measured by comparing the value of the refrigerating effect (RE), the heat of compression, and the refrigerator performance (COP). The test results show that the best refrigerator performance rate is when the refrigerator operates with variation 3 (refrigerant MC-22 with CT2 as the expansion valve), increasing COP values ranging from 0.62% to 2.12%.
INVESTIGATION AND ADAPTATION OF A PRECISION AIR CONDITIONING SYSTEM FOR PRACTICAL LABORATORY LEARNING Mutaufiq Mutaufiq; Hendri Sulistyo; Ega Taqwali Berman; Kamin Sumardi; Abdul Rohman Nuryadi
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 12, No 2 (2026): October
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fwl.v12i2.42775

Abstract

Precision Air Conditioning (PAC) is a type of advanced cooling machine with features that enable the cooling process to be carried out more efficiently and effectively. This tool is very suitable for use as a learning tool for practical work. However, PAC cannot be directly adopted, but needs to be conditioned so that it can be used as a learning medium for practical work. This study aims to investigate and adapt the PAC cooling machine so that it can be optimized as a learning medium. The PAC investigation aims to determine the feasibility of the performance of a used PAC cooling machine for use as a practical tool. Then the PAC adaptation aims to add the necessary tools and materials so that the PAC is ready for use for practical activities The research uses the R&D (Research and Development) method to produce PAC demonstration tools with the stages of concept, design, collecting materials, assembly, and testing. The trial was conducted to determine the PAC performance parameters, including air temperature, Refrigeration Effect (RE), Compression Works (CW), and Coefficient of Performance (COP). According to the test results, that the PAC cooling machine can operate well after being adapted as a practical demonstration tool. The PAC cooling machine can produce supply air with a minimum temperature of 16.4 oC. Furthermore, the PAC performance calculation results show an RE value of 136.65 kJ/kg, a CW value of 36.26 kJ/kg, and a COP value of 3.84.
Co-Authors Abdul Rohman Nuryadi Adelia Suyatno Agus Solehudin Alvariedz, Ridwan Salman Amay Suherman Apri Wiyono Ariyano Ariyano, Ariyano Asep A. Ruri Irwanto Aulia Zikri Rahman Aulia, Irham Daffa Saepul Prawira Darussalam, Miftakhul Gravita Dewi Puspita Sari Djohar, As’ari Eky Roskiana Ghani Heryana Haftirman, Haftirman Haikal Haikal Hardikusumah, Inu Hendri Sulistyo Irham Aulia Irman Maolani Iskandar Dzulkarnaen Kamin Sumardi Kusuma, Inu Hardi Larutama, Wiku M.I Mulyana Miftakhudin, Muhammad Muhammad Noor, Ridwan Adam Mumu Komaro Mutaqin, Faisal Lutfi Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq Mutaufiq, Mutaufiq Oktapiana, Romy Padilah, Dede Paweka, Bagiawati Rahayu Prakoso, Aji Putro Prasetyo, Ega Adi Radif Abdul Hapidz Rahman, Aulia Zikri Ridwan Adam Muhammad Noor Rizal Zenal Muqodas, Rizal Zenal Saskia Kanisaa Puspanikan Sofina, Amarlya Sulistyo, Hendri Suma, Enang Syamsuri Hasan Tasyarahmanto, Benido Vista Sukma Sonata Widodo Rahayu Yogasmana, Yopi Yundari, Yundari Zhahara, Zhahrotul