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All Journal Abdimasku : Jurnal Pengabdian Masyarakat BULLET : Jurnal Multidisiplin Ilmu
Fisika Prasetyo Putra
Universitas 17 Agustus 1945 Jakarta
Humanities Computer Science & IT Economics, Econometrics & Finance Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Medicine & Pharmacology Nursing Social Sciences

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Analisis Pengaruh Kelurusan Hoistway Terhadap Angka Kebutuhan Nyata Dudukan Rel Elevator Dibyo Setiawan; Enny Widawati; Marsellinus Bachtiar; Fisika Prasetyo Putra
ABDIMASKU : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 1 (2023): Januari 2023
Publisher : LPPM UNIVERSITAS DIAN NUSWANTORO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33633/ja.v6i1.1043

Abstract

Kenyamanan penumpang menggunakan elevator menjadi perhatian pengelola bangunan gedung. Adanya getaran saat elevator beroperasi menjadi keluhan pengguna, mengacu Peraturan Menteri Ketenagakerjaan Nomor 6 Tahun 2017 bahwa rail guide car dan counterweight harus kuat memandu, menahan getaran, menahan beban tekanan car penuh dan beban pengereman. Tujuan PkM ini mengidentifikasi kelurusan hoistway, merancang dudukan dan menganalisa angka kebutuhan nyata produksi dudukan rail guide car dan counterweight. Metode pendekatan PkM diterapkan pendekatan konsultasi, pendidikan, mediasi dan advokasi sedangkan metode pelaksanaannya menggunakan pendekatan literasi, pengukuran dan analisis. Hasil pengukuran kelurusan hoistway diperoleh simpangan sebesar 1-20mm, rancangan dudukan disesuaikan kembali dan angka kebutuhan nyata produksi berpotensi kerja tambah sebesar Rp.14.850.800 atau 13% dari angka perencanaan pada aspek biaya dudukan rail guide car dan counterweight Elevator LP03, LP04 dan VIP. Saran yang dapat diberikan adalah diskusikan bersama tim peneliti kontrak dan penyedia jasa untuk menjadi kesepakatan, kegiatan sejenis tetap dilakukan pengukuran kelurusan hoistway dan pembangunan hoistway berikutnya agar di lakukan pengawasan lebih cermat.
Studi Literatur Review Desain Dan Fluida Kerja Pada Shell And Tube Heat Exchanger Nor Fajri; Yudistira Anugrahadi Wiraputra; Fredi Insan Nurfadli; Fisika Prasetyo Putra
BULLET : Jurnal Multidisiplin Ilmu Vol. 5 No. 1 (2026): BULLET : Jurnal Multidisiplin Ilmu (INPRESS)
Publisher : CV. Multi Kreasi Media

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Abstract

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 Enny Widawati Fredi Insan Nurfadli Marsellinus Bachtiar Nor Fajri setiawan, Dibyo Yudistira Anugrahadi Wiraputra