Stalin Posted June 12, 2020 Report Share Posted June 12, 2020 Is there any chance that Ventsim will have a tool that calculates the flow needed to decrease(dilution) the concentration of radon and radionuclides within limits established, for example, by the IAEA? Quote Link to comment Share on other sites More sharing options...
Martin Griffith Posted June 16, 2020 Report Share Posted June 16, 2020 In Ventsim, we currently have the Goal Seek tool, under the Tools menu. Here you can adjust everything under the Adjust menu to reach a target value of anything under the Target menu. At the moment the target options are Quantity, Pressure, Temperature, Velocity and Gas Concentrations. We could add Radon properties as target values. So this would mean you could run the Goal Seek, adjusting, say, a Fan Speed, to achieve a certain Radon concentration in another part of the mine. You would enter in the regulation limit Radon concentration as the target, then Ventism would work out the required Fan Speed or Fix Flow amount. Is this the sort of thing you're after? Quote Link to comment Share on other sites More sharing options...
Stalin Posted June 16, 2020 Author Report Share Posted June 16, 2020 Yes. Thank you very much. What will be the formula for calculating the necessary ventilation? Will the calculations look like the attachment? Quote Link to comment Share on other sites More sharing options...
Martin Griffith Posted June 22, 2020 Report Share Posted June 22, 2020 More or less, yes. The Ventsim Radon Simulation will calculate WL throughout the mine, based on the existing flow rates and radon emissions in your model. Then you can adjust flow rates to bring the WL to the required level. If we put a WL target in the Goal Seek, you could adjust a Fix Flow or Fan Speed to achieve a certain WL with the Goal Seek, taking into account the entire mine model. For now, if you want to get a Fix Flow rate for an exact WL in a part of the mine, you will have to adjust your flow rates using trial and error. We will add Radon WL to the Goal Seek as a target in a version of Ventsim soon. Quote Link to comment Share on other sites More sharing options...
Fred_K Posted March 17, 2022 Report Share Posted March 17, 2022 Stalin, I'm interested in that document you shared. It says it's from CIM Bulletin, November 1982. Would you mind sharing the author, title (or even the file)? Or anyone, if familiar with this? Thanks! Best, Fred On 6/16/2020 at 7:06 PM, Stalin said: Yes. Thank you very much. What will be the formula for calculating the necessary ventilation? Will the calculations look like the attachment? Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.