DESAIN CARBON DIOXIDE  EXTINGUISHING SYSTEM PADA GUDANG UREA EKSPOR

Valina Destya Dharamayanti; Eko Julianto; Ekky Nur Budiyanto

Valina Destya Dharamayanti Politeknik Perkapalan Surabaya
Eko Julianto Politeknik Perkapalan Surabaya
Ekky Nur Budiyanto Politeknik Perkapalan Surabaya

Keywords: Extinguishing System, Carbon Dioxide, NFPA, Total Flooding System

Abstract

Abstract – The export urea warehouse is a building that has an important function for national fertilizer companies. The risk of fire in the export urea warehouse is unavoidable, so a fire extinguishing system is needed. A carbon dioxide (CO₂) extinguishing system is chosen because it does not leave residue after the extinguishing process. The carbon dioxide extinguishing system design refers to NFPA 12 to calculate the amount of CO₂ media requirements, determine the flow rate, calculate the number of discharge nozzles, and design the 3D and isometric drawing. Based on these calculations, 70029.9 kg of CO₂ with 34% concentration extinguishing media are needed for a 1-minute discharge time. The capacity of the CO₂ cylinder used is 45 kg so 1557 CO₂ tubes are needed. The pipe sizes used are 3 inches for the main manifold, 2 inches for the manifold cylinder and divider pipe, 1 ¼ inch for the divider pipe, and 1 inch for the branch pipe.