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All Journal Perwira Journal of Science and Engineering (PJSE) Journal of Mechanical Engineering and Applied Technology
Rani Puspita Dewi
Universitas Tidar
Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Perancangan Mesin Sangrai Kacang Kulit Dengan Sisitem Pengluaran Tanpa Pengerukan Serta Analisis Simulasi Termal Selfi Herrani; Rani Puspita Dewi
Journal of Mechanical Engineering and Applied Technology Vol. 4 No. 2 (2026): VOLUME 4 ISSUE 2 YEAR 2026 (JULY 2026)
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jmeat.v4i2.7601

Abstract

Peanut is one of the agricultural commodities commonly utilized by Micro, Small, and Medium Enterprises (MSMEs) as raw material for roasted peanut products. In general, the roasting process in small-scale industries is still carried out conventionally using manual stirring over an open stove. This condition often causes operator fatigue, uneven roasting quality, and inefficient heat usage. Several previous studies have developed roasting machines to improve productivity; however, the product discharge process still requires manual scraping and the heating system tends to consume relatively high fuel energy. Therefore, this research aims to design a peanut roasting machine equipped with an automatic discharge mechanism without manual scraping and supported by a single-burner heating system. The study applied an engineering design method combined with numerical simulation using SolidWorks 2024 software. The research stages consisted of literature review, component calculation, three-dimensional modeling, mechanical simulation, thermal analysis, and evaluation of simulation results. Mechanical analysis was conducted to determine the structural performance of the roasting cylinder under rotational loads, while thermal simulation was used to evaluate heat distribution from the heat source to the roasting drum. The simulation results indicated that the designed machine was able to reduce operator workload, simplify the discharge process, and provide more stable heat distribution during roasting. Consequently, the proposed machine design is expected to increase productivity and operational efficiency in household-scale roasted peanut industries.
Perancangan Mesin Pencacah dan Injection Molding Limbah Plastik untuk Produksi Vas Bunga Berbasis SolidWorks Rendy Maulana Saputra; Rani Puspita Dewi
Perwira Journal of Science & Engineering Vol 6 No 2 (2026)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pbjq6n34

Abstract

Penelitian ini bertujuan merancang mesin pencacah plastik dan injection molding terintegrasi untuk mendukung proses daur ulang limbah plastik menjadi produk bernilai guna berupa vas bunga. Penelitian menggunakan metode kuantitatif dengan pendekatan perancangan dan simulasi berbasis SolidWorks. Tahapan penelitian meliputi studi literatur, perhitungan numerik, pembuatan desain tiga dimensi, assembly, dan simulasi frequency analysis untuk mengetahui karakteristik getaran serta kestabilan rangka mesin. Mesin dirancang menggunakan rangka berbahan ASTM A36 Steel dengan sistem pencacah dan injection molding dalam satu rangkaian proses. Hasil simulasi menunjukkan amplitudo tertinggi sebesar 1,008 mm pada frekuensi 66,541 Hz dan amplitudo terendah sebesar 0,007 mm pada frekuensi 25,03 Hz. Hasil tersebut menunjukkan bahwa rancangan memiliki karakteristik dinamis yang stabil dan dapat digunakan sebagai validasi awal sebelum tahap fabrikasi. Penelitian ini diharapkan mendukung pengolahan limbah plastik secara lebih efektif dan berkelanjutan.
Co-Authors Rendy Maulana Saputra Selfi Herrani