Luthfi Hakim
Universitas Islam Majapahit Mojokerto

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Studi Distribusi Udara Pendingin Reefer Container Ikan pada Kereta Api Menggunakan Computational Fluid Dynamics (CFD) Cynthia Cahya Aditama; Alfi Tranggono Agus Salim; Rahayu Mekar Bisono; Luthfi Hakim; Sabdono Abdi Sucipto; Firdausa Retnaning Restu
JMPM (Jurnal Material dan Proses Manufaktur) Vol 6, No 2 (2022): Desember
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v6i2.16125

Abstract

Ikan sensitif terhadap temperatur penyimpanan. Temperatur diatas 2 °C dapat mempercepat pertumbuhan bakteri dan menyebabkan pembusukan. Temperatur optimal penyimpanan ikan beku adalah -20 °C. Reefer container dengan sistem pendinginan tertutup berfungsi untuk mengawetkan dengan menjaga temperatur ikan beku. Permasalahan penelitian ini adalah distribusi udara dingin yang tidak merata di reefer container kereta api karena perbedaan pendinginan sehingga dapat menurunkan kualitas ikan. Tujuan penelitian ini adalah meningkatkan pemerataan distribusi udara, kecepatan, dan tekanan di reefer container kereta api. Solusi permasalahannya adalah penambahan pelat pengarah di bagian t-floor reefer container kereta api. Metode yang digunakan yaitu analisis dan simulasi numerik reefer container kereta api menggunakan Computational Fluid Dynamics (CFD). Reefer container tanpa pelat pengarah disimulasikan untuk mengetahui area reefer container kereta api yang tidak terdistribusi merata. Distribusi udara pada reefer container kereta api ditingkatkan pemerataannya dengan penambahan pelat pengarah variasi sudut 40°, 50°, dan 60°. Penelitian ini menghasilkan data vektor kecepatan aliran udara (velocity contour pressure contour of the reefer container) serta data kecepatan rata-rata dan tekanan rata-rata reefer container kereta api. Hasil penelitian menunjukkan data distribusi udara, kecepatan, dan tekanan yang merata adalah reefer container kereta api dengan pelat pengarah 40⁰. Fishes are sensitive to storage temperature. Temperatures above 2 °C can accelerate bacterial growth and cause decay. The optimal temperature for storing frozen fish is -20 °C. Reefer containers with a closed cooling system function to preserve by maintaining the temperature of frozen fish. The problem of this research is the uneven distribution of cold air in the reefer container of the train due to differences in cooling which can reduce the quality of fish. The purpose of this research is to increase the even distribution of air, velocity, and pressure in the reefer container of the train. The solution to the problem is the addition of a guide plate on the t-floor in the reefer container. This research method is through the analysis and simulation of reefer containers of the train fluids using Computational Fluid Dynamics (CFD). Reefer containers without guide plates are simulated to find out the areas of reefer containers of the train that are not evenly distributed. Equal distribution of air in reefer containers of the train is improved by adding guide plates with variations of angles of 40°, 50°, and 60°. This research produces vector data of airflow velocity (velocity contour pressure contour of the reefer container) as well as data on the average velocity and average pressure of the reefer container. The results showed that the air distribution, velocity, and pressure data were evenly distributed in a reefer container of the train with a 40⁰ guide plate.
STUDI DISTRIBUSI UDARA PENDINGIN REEFER CONTAINER IKAN PADA KERETA API MENGGUNAKAN CFD Cynthia Cahya Aditama; Alfi Tranggono Agus Salim; Rahayu Mekar Bisono; Luthfi Hakim; Sabdono Abdi Sucipto; Firdausa Retnaning Restu
Jurnal Teknologi Terapan Vol 9, No 1 (2023): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v9i1.434

Abstract

Fresh fish is sensitive to storage temperature. Temperatures above 2 °C accelerate the growth of bacteria and cause spoilage. The optimal storage temperature for frozen fish is -20 °C. Reefer container with a closed cooling system serves to preserve by maintaining the temperature of frozen fish. The problem of this research is the uneven distribution of cold air in the reefer containers of the train, thereby reducing the quality of frozen fish. The purpose of this research is to increase the even distribution of air, velocity, and pressure in the reefer container of the train. The solution to the problem is simulation and analysis of the condition of the reefer container train using Computational Fluid Dynamics (CFD). Reefer containers without guide plates are simulated to find out the area of the train reefer containers that are not evenly distributed. The distribution of air in the reefer container of the train is improved even by the addition of guide plates with variations in angles of 40°, 50°, and 60°. This research produces qualitative data (velocity contour and pressure contour reefer container) and quantitative (average velocity and pressure). The results of this study are CFD simulation data of uniform distribution of air, speed, and pressure on the reefer container train with a 40⁰ guide plate.