Kajian Aliran Udara dan Suhu pada Kemasan Komoditi Pepaya (Carica papaya L.) Menggunakan Teknik Computational Fluid Dynamics (CFD)
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Institusion
Universitas Sumatera Utara
Author
Andriani, Filli
Subject
Aliran Udara
Datestamp
2018-12-28 04:38:20
Abstract :
Horticultura products are highly damaged during post harvest handling. Papaya is one of which includes climatis fruit is a fruit with high respiration rate. That respiration can be a factor causing the accumulation of CO2 and temperature in the pack. Ventilated packaging is a solution to control the gas in the packaging because air can flow into the packaging so that the temperature inside the packaging can be controlled. CFD can be utilized to simulate and visualize the airflow and temperature changes occurring in the packaging,making it easier to design in a well-ventilated packaging to suit the packaged product. The study was conducted using 1 hour, 3 hour and 5 hour simulation time with 12 points of temperature measurement inside carton box vibrated using simulator table with 3Hz frequency, then simulated using CFD, conducted in September - October 2017 in the Laboratory of Biosystems Engineering Study Program of Agricultural Engineering, Faculty of Agriculture, USU, Medan. The observed parameter was velocity from airflow, temperature and relative humidity. The results showed that the air flow velocity vector with simulation time 1 hour, 3 hours and 5 hours tend to have the same flow velocity vector, the relative humidity value of 99,9 % and an increase in temperature at any time of the simulation. CFD simulation calculations was valid because of the average value of the validation error <10%.
Horticultura products are highly damaged during post harvest handling. Papaya is one of which includes climatis fruit is a fruit with high respiration rate. That respiration can be a factor causing the accumulation of CO2 and temperature in the pack. Ventilated packaging is a solution to control the gas in the packaging because air can flow into the packaging so that the temperature inside the packaging can be controlled. CFD can be utilized to simulate and visualize the airflow and temperature changes occurring in the packaging,making it easier to design in a well-ventilated packaging to suit the packaged product. The study was conducted using 1 hour, 3 hour and 5 hour simulation time with 12 points of temperature measurement inside carton box vibrated using simulator table with 3Hz frequency, then simulated using CFD, conducted in September - October 2017 in the Laboratory of Biosystems Engineering Study Program of Agricultural Engineering, Faculty of Agriculture, USU, Medan. The observed parameter was velocity from airflow, temperature and relative humidity. The results showed that the air flow velocity vector with simulation time 1 hour, 3 hours and 5 hours tend to have the same flow velocity vector, the relative humidity value of 99,9 % and an increase in temperature at any time of the simulation. CFD simulation calculations was valid because of the average value of the validation error <10%.
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