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All Journal MEDIA PETERNAKAN - Journal of Animal Science and Technology
H Suhardiyanto
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Agriculture, Biological Sciences & Forestry

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Analisis dan Simulasi Distribusi Suhu Udara pada Kandang Sapi Perah Menggunakan Computational Fluid Dynamics (CFD) A Yani; H Suhardiyanto; R Hasbullah; B P Purwanto
Media Peternakan Vol. 30 No. 3 (2007): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (265.19 KB)

Abstract

This experiment was conducted to analyze the temperature and relative humidity distribution in dairy barn of Friesian Holstein (FH) using computational fluid dynamics (CFD) as a basic consideration for dairy barn design. The capacity of the dairy barn was 20 heads of FH with tail to tail model. The dimensions of the dairy barn were: 13 m in length, 6.3 m in width, and 5.75 m in height. The floor was made from concrete with 20 slope. Asbestos was used as roof of the dairy barn, whereas frame of the dairy barn was made from steel. The results of the analysis showed that during the daytime, air temperature inside the dairy barn increased by the height from floor level. The CFD simulation showed clearly the temperature distribution in the dairy barn. Air temperature obtained from CFD simulation was in line with that of the measured values. Therefore, it can be used as basic consideration for the dairy barn design with respect to low air temperature and uniform air temperature distribution. It was recommended that one of the best design configurations is 6.25 m high, 8.3 m wide, 0.4 m high of wall. The best design could decrease 0.474 0C of air temperature and increased dry matter intake of dairy cattle 0.403 kg per day per head. The amount of heat production of FH was considered to determine the best design of dairy barn. Key words: dairy barn design, air temperature distribution,computational fluid dynamics (CFD)
Design of Stocking Density of Broilers for Closed House in Wet Tropical Climates A Yani; H Suhardiyanto; . Erizal; B P Purwanto
Media Peternakan Vol. 37 No. 1 (2014): Media Peternakan
Publisher : Faculty of Animal Science, Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (772.543 KB) | DOI: 10.5398/medpet.2014.37.1.17

Abstract

The objectives of this research were to: 1) design the stocking density of broiler reared at a closed house system in wet tropical climates based on the heat released by broiler, 2) design broiler harvesting system based on the housing heat load, and 3) design required housing area based on the broiler age. The housing design used to determine the broiler stocking density was based on Computational Fluid Dynamics (CFD) with Solid Works Flow Simulation software. The method had good validation shown by small number of average percentage of deviation (6.07%). Simulation was carried out by changing the number of broilers i.e. 16, 18, 20, 21 and 22 birds/m2. According to the CFD simulation result, total heat load inside the house was 233.33 kW at 21 birds/m2 at weight 1.65 kg/bird. At that stocking density the housing can be occupied by 27,224 birds until 22 days of age. The highest total weight was produced by daily harvesting started from 22 to 32 d. It can be concluded that the stocking density of closed house for broiler is 34.65 kg/m2, total production is 45,717 kg per period and the required area for 27,224 broilers is  248.63 m2 (1 to 7 days of age broiler), 562.52 m2 (8 to 14 days of age broiler) and 1,000 m2 (15 to 22 days of age broiler). Key words: broiler, computational fluid dynamics, stocking density, total heat
Co-Authors . Erizal A Yani B P Purwanto R Hasbullah