Monitor Points Selection in CFD FLACS for Gas Detector Placement
SH Ahmad Mokhtar1, R Rusli2, A Buang3, MS Nasif4

1Siti Hajar Ahmad Mokhtar*, Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia.
2Risza Rusli, Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia.
3Azizul Buang, Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia.
4Mohammad Shakir Nasif, Mechanical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar, Malaysia.
Manuscript received on December 15, 2019. | Revised Manuscript received on December 20, 2019. | Manuscript published on January 10, 2020. | PP: 3531-3536 | Volume-9 Issue-3, January 2020. | Retrieval Number: C8573019320/2020©BEIESP | DOI: 10.35940/ijitee.C8573.019320
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Abstract: Gas detector first invented was in 1815 to detect the presence of the methane gas and becomes part of a safety system when it is capable to detect the gas leakage and decrease the risk of major accident occurrence. However, the efficiency of the gas detector has been questioned among industry people due to unable to measure the effectiveness of the gas detector quantitatively. Industry people has a problem on how many and where should they locate the gas detector. This study explained the very beginning steps on how to determine the number and location of the gas detector should be installed. This research simulated the gas explosion cloud by using CFD FLACS at highly hazardous area by setting the four parameters with different values of wind speed, wind direction, leak rate and leak direction. In order to optimize the placement of the gas detector, three objectives need to be achieved: 1) to obtain the fastest response time of the gas detector to any gas leakage, 2) to ensure the availability of the gas detection system in worst conditions and 3) to place the gas detector in the potentially hazardous area. The locations of the gas detector meet the objectives based on the approach applied in this study. 
Keywords: CFD FLACS, FGS Placement, Gas Detection System, Gas Dispersion, Modelling.
Scope of the Article: Network Modelling and Simulation