Judul: Analisa Termal pada Rancang Bangun Reaktor Pirolisis untuk Memproduksi Bahan Bakar Minyak dari Limbah Plastik
Abstrak: The increasing amounts of plastic wastes generate enormous environmental problems. The pyrolysis can potentially be used to convert plastics into valuable chemicals and fuels. Almost all of the pyrolysis experiments conducted in laboratory condition, and the heat transfer is not investigated. The objectives of this study were to design temperature profile model using Computational Fluid Dynamics (CFD) and analyze its temperature distribution. Reactor was designed as an experimental set-up. For performance test, temperature was maintained in 5 difference level with 3 hours of production process. The result showed that the highest fuel yield produced from 450 pyrolysis temperature with 21.32 g of fuel yield. Each level of temperature degrees have almost similar temperature distribution pattern with temperature decreased vertically to the top of reactor. The result showed that validation using CFD simulation was approaching the value of temperature measurement on reactor.
Keyword: Bogor Agricultural University (IPB), CFD simulation, temperature distribution, pyrolysis reactor, plastic waste, Fuel

Judul: Modifikasi Reaktor pada Alat Pirolisis Plastik.
Abstrak: Sebagian besar peralatan yang digunakan manusia, dibuat dari bahan baku plastik. Peningkatan penggunaan plastik ini diikuti juga dengan peningkatan limbah plastik. Masyarakat pada umumnya mengolah limbah limbah plastik dengan cara dibakar secara langsung, yang akan menimbulkan gas yang berbahaya jika dihisap langsung. Oleh karena itu diperlukan pengolahan limbah plastik yang lebih aman. Salah satunya yaitu metode pirolisis. Agar pirolisis bisa berhasil, maka suhu yang harus dicapai saat pirolisis pada plastik HDPE yaitu 450oC. Reaktor pirolisis yang dirancang Naufan (2016) yang digunakan pada penelitian ini masih memiliki beberapa kelemahan, antara lain sebaran suhu yang tidak stabil di dalam reaktor dan kehilangan panas yang cukup tinggi dari tungku ke reaktor, sehingga perlu dilakukan modifikasi. Modifikasi yang dilakukan yaitu dengan menambahkan pipa heat exchanger. Selanjutnya hasil modifikasi diuji dengan memberikan variasi terhadap laju bahan bakar dan kecepatan udara blower. Hasil yang didapatkan yaitu sebaran suhu yang dicapai setelah dilakukakan modifikasi adalah sebesar 100 – 350 oC. Minyak yang dihasilkan yaitu 20 gram pada variasi laju oli 2,8 liter/jam dan kecepatan uadara 9,6 m/s. Keefektivitasan heat exchanger yang di rancang pada alat ini sebesar 0,98. Nilai selisih suhu tiap menit dibagi dengan lama waktu pengujian sebesar 3,7. Nilai selisih suhu pada percobaan ini lebih baik jika dibandingkan dengan penelitian Naufan (2016).
Keyword: heat exchanger, limbah plastik, plastik HDPE, reaktor pirolisis, sebaran suhu

Judul: Manajemen Pemeliharaan Kuda (Equus caballus) Untuk Upacara Kenegaraan Dan Sarana Kesenjataan Di Detasemen Kavaleri Berkuda (DenKavkud) TNI-AD Parongpong
Abstrak: Cavalry Horse Detachement (Denkavkud) Indonesian National Army-Cavalary Parongpong is one of the Indonesian military units that utilize the horse and train it as a means of purpose of formal state ceremony and armed forces. Skills possessed by the horse cavalry was the result of care management and specialized training provided by the trainer. Aspects of care management are breeding, feeding, and management. Horses that are kept in the Denkavkud, Parongpong are stallions, mares, foals, and military horses. Total populations of horses at Denkavkud are 183 horses. Besides commited horse training (remonte), Denkavkud also did breeding program to produce horses that can be trained and used as a military horse. There are some issues contained in Denkavkud, such as some of the nutrients needed by the horses not being met from feed given. One of these is crude protein and lysine. Lactation mares was crude protein and lysine deficiency. The number of death in 2010 is higher than previous years. Based on the number of horses that died from January until June 2010 is 11 horses. The average mortality was caused by colic. Colic is caused by excessive eating, excessive drinking during hot, moldy food, and even by investment roundworms. Animal welfare in Denkavkud can be enhanced by improvement of feed given and improving the health of livestock through improved sanitation.
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