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Topics - tricia

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PyroSim / steady fire
« on: August 31, 2015, 02:32:13 am »

I try to create steady fire which is constantly burning without including any fire spread rate and no extinguishing coefficient as well. However, i realise the fire starts to spread to other area then disappear. Unfortunately, the pyrosim file is too big to be uploaded into the website, thus I had attached some screenshots. For reaction, I had used the default values of polyurethane. The fire occurs at the 2nd storey of a 10 storey building. You can see the red fire vent from the images attached. What could be the cause? Is it because the oxygen is used up even though no extinguishing coefficient is stated? Thanks.

PyroSim / Smoke Visibility
« on: June 29, 2015, 09:38:58 pm »
Hi, i am running smoke simulation for a building. The acceptance criteria is visibility shall not be less than horizontal distance of 5m at a height of 1.7m from floor level. Is there any way to measure the smoke visibility to check that the criteria is being met? Thanks.

PyroSim / sprinkler and hss
« on: April 01, 2015, 12:29:33 am »
Hi, i am new to pyrosim and need some help in this. I had created a simple model with sprinkler and burner. The HSS didnt go to zero when sprinkler is activated. Could anyone advise what could have gone wrong with the attached model? Thanks.

PyroSim / How to know whether the fire has been extinguished?
« on: March 19, 2015, 08:26:18 pm »
I had simulated sprinkler right above a 200kW/m2 burner with specified extinguishing coefficient. I am able to check the sprinkler graph that the sprinkler had activated after 74 seconds. The sprinkler is able to lower down the room temperature but it does not cause any changes to the HRR. How do i know whether the fire had been extinguished? Is there any graph which shows that? The simulation video is not able to show that the fire has been extinguished?

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