Judul: Perancangan Jaringan Fire Sprinkler pada Gedung Wing V Fakultas Teknologi Pertanian Institut Pertanian Bogor
Abstrak: Menurut Undang-Undang Republik Indonesia Nomor 28 Tahun 2002 tentangbangunan gedung Pasal 17 ayat (1), persyaratan keselamatan gedung mencakupkemampuan bangunan untuk mendukung beban serta kemampuan dalampencegahan dan penanggulangan bahaya kebakaran dan petir. Untuk meningkatkanketahanan gedung terhadap kebakaran, diperlukan sistem proteksi kebakaran yangtepat, seperti instalasi jaringan fire sprinkler sesuai standar BSN dan NFPA.Perancangan fire sprinkler akan diterapkan pada Gedung Wing V pada KampusIPB Dramaga. Metode yang digunakan mengikuti prosedur yang telah ditetapkanoleh BSN dan NFPA. Pada Gedung Wing V Institut Pertanian Bogor dibutuhkan233 kepala sprinkler dengan kebutuhan lantai 1 sebanyak 89 buah, lantai 2sebanyak 82 buah, dan lantai 3 sebanyak 62 buah. Diameter pipa yang digunakanbervariatif dari, According to Undang-Undang Republik Indonesia Number 28 of 2002 onbuilding structures, article 17 paragraph (1), building safety requirements includethe capability to support loads and the ability to prevent and mitigate fire andlightning hazards. An appropriate fire protection system, such as a fire sprinklernetwork compliant with BSN and NFPA standards, is necessary to enhance buildingfire resistance. The fire sprinkler system for the Wing V Building at IPB DramagaCampus will be designed following these procedures. Wing V Building requires233 sprinkler heads, with 89 on the first floor, 82 on the second floor, and 62 onthe third floor, using pipe diameters ranging from
Keyword: Debit, Head, NFPA, Sprinkler

Judul: Rainwater Harvesting System Design in International  Dormitory of IPB Dramaga Campus
Abstrak: Curah hujan yang tinggi di Bogor mencapai 3500 mm melebihi rata-rata curah hujan nasional antara 2000 – 3000 mm. Pemanenan air hujan cocok untuk dilakukan sebagai langkah konservatif yang dapat dilakukan IPB University dalam upaya pemeliharaan sumber daya air yang berkelanjutan. Penelitian ini bertujuan mengetahui banyaknya suplai air hujan yang dapat dipanen, menghasilkan desain sistem PAH serta RAB instalasinya, dan mengetahui penghematan air serta biaya yang dapat dicapai melalui sistem PAH. Penelitian dilakukan dari Februari – Mei 2024 dengan pengambilan data primer berupa luas atap bangunan dan informasi kebutuhan air bersih, serta data sekunder berupa curah hujan tahun 2000 – 2023 Stasiun BMKG Jawa Barat. Potensi volume air hujan yang dapat dipanen 1230 – 2134 m3 dengan rata-rata suplai 1603 m3 per tahun. Desain sistem pemanenan PAH yang dirancang menggunakan tangki FRP berkapasitas 28 m3 dengan dimensi 7 m x 2 m x 2 m. Talang dipasang dengan kemiringan seragam ½% dan pipa datar dengan kemiringan seragam 1%. Variasi ukuran pipa dan talang yang digunakan antara 1 – 10 inch. Besarnya biaya yang dibutuhkan untuk instalasi PAH sebesar Rp143.000.000,00. Penghematan air aktual yang dapat tercapai melalui sistem PAH sebanyak 44% – 75% dari kebutuhan air tahunan dan menghemat biaya lebih dari 120% dari investasi awal., High rainfall in Bogor reached 3500 mm, exceeding the national average rainfall between 2000 – 3000 mm. Rainwater harvesting is conservative step that IPB University can take to maintain sustainable water resources. This research aims to determine amount of rainwater supply that can be harvested, created PAH system design and installation RAB, and determine water and cost savings that can be achieved through PAH system. The research was conducted from February – May 2024 by collecting primary data of building roof area and information of clean water needs, and secondary data of rainfall from 2000 – 2023 from West Java BMKG Station. Potential harvested volume of rainwater is 1230 – 2134 m3 with average supply 1603 m3 a year. The harvesting system design uses a 28 m3 FRP tank with dimensions 7 m x 2 m x 2 m. The gutter is installed with slope of ½% and the flat pipe with slope of 1%. Variations in pipe and gutter sizes used are between 1 – 10 inches. The cost required for PAH installation is IDR143,000,000.00. Actual water savings that can be achieved through PAH system are 44% – 75% of annual water needs and cost savings of more than 120% of the initial investment.
Keyword: air hujan, ketersediaan air, konservasi air, pemanenan air hujan, rainwater, rainwater harvesting, water availability, water conservation

Judul: Karakteristik Carboxymethyl Chitosan Dengan Variasi Konsentrasi NaOH
Abstrak: Carboxymethyl chitosan is chitosan derivative product obtained from chemical modification. CMCh were made by alkalization process and carboxymethylation process. Factors that affect CMCh characteristics were excess sodium hydroxide in alkalization process, ratio between chitosan and monochloroacetic acid, and carboxymethylation temperature. The objectives of this research were to study the NaOH effect to CMCh characteristics, to learn process of making CMCh, to set the proper concentration of NaOH, and to analyze CMCh characteristics. CMCh yields were 110.72%-114.22%. CMCh pH value were 3.74-4.31. The optimum NaOH concentration to obtain the best CHCh was 10 M. Percentage of CMCh moisture content was 10.70%-11.42%. Ash content and nitrogen content of CMCh were 0.49%-0.50% and 4.52%-4.81%. CMCh viscousity was 8.25 cps. Percentage of CMCh solubility was 61.61%-91.50%. The different functional groups from chitosan which observed in CMCh were C=O group, CH group from alkene functional group, C−O group, and C−O−C group.
Keyword: solubility., functional group, CMCh characteristics, chitosan, carboxymethyl chitosan