Design of Solar Transmission System using Fiber Optic for Indoor Lighting

Transmission of fiber solar lighting system is a lighting system using sunlight as a source. The system consists of two main components, there are: solar collectors and optical fiber. Solar collector is used to collect and focus sunlight into the focal point. Sunlight that received by collector is transmitted by optical fiber into the room, primarily through efficiency of the collector system. In this final project, we designed the transmission systems via optical fiber for lighting on the Photonics Laboratory ITS. Transmission of solar lighting systems used parabolic collector as a major collector and end glow plastic optical fiber as the transmission with length of 50m. There are four types of collector systems were designed, i.e. parabolic, parabolic with flat mirrors, parabolic with pyramid and parabolic with a cone. Characterization system consists of measuring reflectance values, the output intensity of the optical fiber, and the intensity light distribution in the room. The results of measurements of the reflectance (R) collector surface with paint gray and silver are 0.225 and 0.475, respectively. In the measurement light output intensity of the optical fiber with variation types of collector systems, it is obtained that the highest value from the combination of parabolic collector with a cone. Distribution of light output from the optical fiber in the room was also calculated and measured. Keywords: collector; optical fiber; solar lightin

PENDAMPINGAN PENGEMBANGAN USAHA UMKM MR UDANGKU DESA LUMPUR, GRESIK

Kegiatan pengabdian masyarakat merupakan salah satu bentuk kontribusi dari lembaga pendidikan dan tenaga akademik untuk memberikan manfaat langsung kepada masyarakat. Universitas Internasional Semen Indonesia (UISI) melalui program studi Manajemen Rekayasa telah melaksanakan kegiatan pengabdian masyarakat yang bertujuan untuk membantu pengembangan usaha UMKM MR Udangku di Kelurahan Lumpur, Gresik. Pengembangan atau inovasi terhadap suatu produk telah dilakukan pada pengmas sebelumnya dan menghasilkan inovasi olahan udang sebagai hasil tangkapan hasil laut terbesar di Kelurahan Lumpur. Produksi telah rutin dilakukan hingga terbentuk UMKM UdangKu. Dengan pemasaran yang dilakukan secara langsung dan juga melalui e-commerce. Namun, terdapat berbagai aspek yang perlu diperhatikan dalam pengembangan produk untuk meningkatkan kualitas, daya saing, dan keberlanjutan usaha. Metode yang digunakan pada pengembangan usaha UMKM MR Udangku yaitu HoQ (House of Quality) untuk Identifikasi Kualitas Produk, Pareto dan Fishbone Diagram untuk menguji Kualitas Produk, Pengembangan Izin Usaha untuk (NIB dan Halal) serta Manajemen Keuangan untuk menghitung HPP (Harga Pokok Penjualan). Hasil dari pendampingan pengembangan usaha ini adalah mengetahui peluang bisnis yang bisa dikembang, melakukan evaluasi dan peningkatan kualitas produk, mendapatkan NIB dan Sertifikasi Halal serta mengetahui HPP produk nugget udang

Rancang Bangun Solar Dryer untuk Meningkatkan Kualitas Refuse Derived Fuels (RDF) sebagai Bahan Bakar Alternatif di Kiln Burner Industri Semen

To utilize the municipal solid waste (MSW), PT Semen Indonesia has a program to convert waste into three useful products. One of the product is named Refuse Derived Fuel (RDF). The RDF has claimed that it had a caloric value about 5178 kcal/kg. However, currently, RDF could not be used for the combustion process in the cement kiln since RDF has higher moisture content and lower caloric value. In this research, a solar dryer with greenhouse type is designed to reduce the moisture content. The performance is tested using two variations and compared to the conventional method. The variations are a solar dryer with one fan and with no fan. The general results show that variation with one fan has the highest drying rate among all. There is a significant reduction of moisture content after drying process using a solar dryer. The moisture content could be reduced to 16.25 % and 17 % using one fan and no fan, respectively. Furthermore, variation with 1 fan has higher solar dryer efficiency than that of one fan

The Effect of Activated Carbon Addition on Woody Cutting Waste Briquette Combustion Quality

This study aims to increase the calorific value of woody cutting waste briquette by adding activated carbon. The previous experiments showed that the highest calorific value of woody cutting waste briquette reached only 3 630 kCal kg–1. In this research, activated carbon was made of Palmyra palm fiber using H3PO4 as an activator solvent. There are four different proportion of activated carbon used in the experiment, for example, 5 %, 10 %, 15 %, and 20 % with 10 % tapioca flour binder. The woody cutting waste were carbonized and sieved into 50 mesh to 100 mesh. The briquette performance was tested using proximate analysis, bomb calorimeter, and combustion analysis. The addition of activated carbon in briquette could increase the calorific value from 3 630 kCal kg–1 to around 4 500 kCal kg–1