Judul: Desain Bangunan Turbin Picohidro dengan Tenaga Air Irigasi
Abstrak: Jaringan irigasi memiliki potensi sebagai pembangkit listrik tanpa emisi karbon. Penelitian ini bertujuan mendesain bangunan turbin pikohidro dengan tenaga air irigasi. Desain bangunan turbin pikohidro tenaga air irigasi telah dapat didesain dengan turbin reaksi kaplan yang terdiri dari desain turbin tunggal dengan daya 24,5 kWh/hari dan desain multi turbin dengan daya 122,75 kWh/hari. Kecepatan aliran irigasi berkisar antara 0,4 m/s – 0,74 m/s dengan potensi daya 1,4 kWh – 655,1 kWh. Hasil simulasi menunjukan tipe Kaplan adalah turbin terbaik yang dapat digunakan pada desain bangunan turbin pikohidro tenaga irigasi. Pada kondisi debit inlet 18 l/s dan ketinggian terjun 0,5 m bangunan turbin pikohidro menghasilkan putaran poros turbin sebesar 106 rpm, tegangan 15,6 volt dan arus 1,1 ampere. Bangunan turbin pikohidro sebaiknya dipertimbangkan sebagai bagian dari bangunan terjun aliran irigasi untuk meredam energi.
Keyword: Irrigation Networks, Pico hydro, Turbine, Power

Judul: Potensi Pemanfaatan Curah Hujan sebagai Sumberdaya Pembangkit Listrik Nanohidro
Abstrak: Water resources are be an source energy alternative that are widely used by many developing countries and developed countries as the main source of national energy. Generally, a power plant that uses water resources requires a large flow of the river or through the dam energy to generate electricity, but the applying of precipitation potencial is not widely done. Nanohydro power plants developed in this study utilizes precipitation that falls onto the surface of building. This tool has a small size and can be moved around (portable/moveable) with simple system to facilitate its use. Due to large precipitation changing over time, then the utilization of rainfall is conditioned prior to reaching the minimum required discharge limits to rotate and maintain the turbine rotation. Minimum flow required to rotate and maintain the turbine is about 4-5 liters per second. Nanohydro power plants have an efficiency of 5,23% with a tool for value and efficiency of the turbine generator efficiency of 40,96% and 12,76%. Turbine of the power plant can be spun at a speed of 60 rpm with 0.4 height and flow rate of 5 liters per second. With the rotational speed of the turbine, nanohydro power generation can produce power about 2 watt and can turn on the 3 watt LED lamp with a light level of ignition criteria.
Keyword: Bogor Agricultural University (IPB), efficiency, nanohydro, rainfall, power generation, alternative energy

Judul: Physical Caracterutie of Lipstick Using Beeswax at Different Concentrations.
Abstrak: Lipstick is one of the cosmetic base as pigment dispertion on fat. Lipstick is used to colour lips with artistic touch so it can grown up estetic in order to colouring face. Purpose of the lipstick beside for decorative effect, it can protect lips from weather influence and dirty air too. Lipstick formulation use from base, perfume, antioxidant and pigment. Base can grouping became oil, fat and wax. Commonly waxes to use for lipstick are carnauba wax, candelilla wax and ozokerite wax. Beeswax which has been extraction from the comb of the hive is often contaminated by other substances. Therefore, beeswax usually melted, filtered also bleached in order to get lipstick that have good shine and physic characteristic. The objective of this research is to seen function influence of beeswax which bleached by 1.5% activated charcoal at 15%, 25%, 35% and 45% concentrations on lipstick quality resulted.
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