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All Journal BULLET : Jurnal Multidisiplin Ilmu AMMA : Jurnal Pengabdian Masyarakat
Fajri, Nor
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Humanities Chemistry Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing

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Peningkatan Kompetensi Staf Pengajar Vokasi Melalui Pelatihan Intensif Perancangan Mesin Dengan Sistem CAD Model 3D Aflah Hibatullah, Naufal; Iqbal Rokhim, Mochamad; Khoirur Rijal, Muhammad; Raharjo, Slamet; Ihsan Al Qodar, Muhammad; Fajri, Nor
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 12 : Januari (2026): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Competency in Computer-Aided Design (CAD) 3D–based design is a vital foundation in modern vocational engineering education. However, a major challenge in practice is the lack of uniform competency standards among teaching staff, where intuitive modeling practices are often found that are not fully defined, resulting in low design data integrity. This program aims to standardize such technical competencies through intensive training based on the Certified SolidWorks Associate (CSWA) curriculum. The program was conducted entirely in an offline setting over 65 instructional hours, covering fundamental topics ranging from design intent philosophy and parametric sketching to assembly validation using standard mates. The results demonstrate a perfect quantitative outcome, with 100% of participants successfully passing the examination and obtaining the international CSWA certification. This success indicates that structured training interventions are effective in equalizing participants’ competencies. The strategic implication of this program is the establishment of a uniform teaching standard among vocational lecturers, which ultimately ensures that graduates possess digital design literacy aligned with modern industrial best practices.
Studi Literatur Review Desain Dan Fluida Kerja Pada Shell And Tube Heat Exchanger Fajri, Nor; Anugrahadi Wiraputra, Yudistira; Insan Nurfadli, Fredi; Prasetyo Putra, Fisika
BULLET : Jurnal Multidisiplin Ilmu Vol. 5 No. 1 (2026): BULLET : Jurnal Multidisiplin Ilmu (INPRESS)
Publisher : CV. Multi Kreasi Media

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Shell and Tube Heat Exchanger s are the most widely used type of heat exchanger in the process, energy, and manufacturing industries due to their structural reliability and operational flexibility. However, various studies show that conventional designs still face limitations in achieving high heat transfer performance with controlled pressure losses. This article aims to critically review approaches to improving the performance of Shell and Tube Heat Exchanger s through design modifications and working fluid selection. The method used a semi-systematic approach to experimental studies, numerical studies, and previous reviews discussing baffle innovations, tube geometry variations, the application of porous media, passive enhancement methods, and the use of nanofluids. The results show that design modifications, particularly to the baffles and tube geometry, can improve heat transfer performance by 20–40% compared to conventional configurations. Passive enhancement and porous media approaches enhance flow mixing and turbulence intensity, but are often accompanied by an increase in pressure loss of up to 15–60%. The use of nanofluids and hybrid nanofluids was reported to improve thermal performance by 25–35%, with the main limitations being increased fluid viscosity and pump power requirements.
Co-Authors Aflah Hibatullah, Naufal Anugrahadi Wiraputra, Yudistira Ihsan Al Qodar, Muhammad Insan Nurfadli, Fredi Iqbal Rokhim, Mochamad Khoirur Rijal, Muhammad Prasetyo Putra, Fisika Slamet Raharjo