M/s Bharat Petroleum Corporation Ltd has awarded iFluids Engineering to carry out Fire water system Hydraulic Study. BPCL has set up a LPG Bottling Plant at Sengipatti of Thanjavur District, TamilNadu. The bottling plant receives LPG in Tank trucks & later transferred to LPG bullets. The Bottling Plant consists of three above-ground storage bullets,the LPG in bullets is filled inside cylinders of 14.2kg, 19kg, 35 Kg, 47.5kg & 5kg via LPG transfer pumps.
Fire water refers to the water used for firefighting in facility, using the application of Hydrants, Monitors, Spray nozzles and sprinklers.
Fire water hydraulic analysis is carried out to check the existing firewater network & designed as per the OISD requirements. This bottling plant consists of 14 fire zones including Filled shed, PT shed, Gantry, Storage area and LPG Pump house. Fire water is supplied to these zones by activating the deluge valves.
Fire water system hydraulics is carried out for 14 fire zones to identify whether the fire water system supplies the calculated fire water demand for each fire zone.
Developed fire water model is analyzed by opening the deluge vales under operation as per logic and supplementary water flow rate of 288 m3/hr from two water monitors. Hydraulic analysis is performed considering fire water flow from deluge valve and to its downstream fire water lines.
OBJECTIVE
This project aims to check the adequacy of fire water pumps capacity, headers size, existing fire water ring main header arrangement which are capable of delivering the maximum foreseeable fire water requirement, fire water flow from deluge valves, sprinklers, hydrant, monitor etc.
Fire water network analyzed has been designed in such a way to deliver 120 % of the design flow rate at each fire zone and the required pressure at ring main header, Hydrants, Monitors and Sprinklers.
Methodology
- Input data collection
- Calculation of existing Fire water demand calculation or Fire water requirement for the facility.
- Development of Fire water network model.
- Hydraulic analysis for the entire fire water network model.
- Checking of required conditions in fire water spray / sprinkler, hydrant, monitors.
- Checking the fire water network and providing recommendation if necessary.