Quote Originally Posted by Sanjay kumar G R View Post
Please, anyone help me out with DNV's Phast Risk Software.

I need to carry out the risk analysis using DNV's Phast Risk Micro 6.54.
The materials to be considered are LIGHT DIESEL OIL (LDO) & HEAVY FUEL OIL (HFO). I seriously have no idea which material or material mixture to be used out of the material database given in the software.

I have been trying to solve this problem from past 3 days, but its was of no use.

Please help me with this.

Sanjay Kumar GR
TCE Ltd, Mumbai
Hi Sanjay

Apart from LPG and light cuts it seems that PHAST outputs are not as much sensitive to liquid hydrocarbons properties as one could think. So I would say that for mixture of C10+ the properties in the database are almost similar each other with small effects on the final results. So if your study require fire calcs then use the simplified approach of single component, e.g. using C12 which I think an average for common diesel fuel.
Also I suggest in this approach if you suspect to err then err on the safety side


hope this helps