Pyrogenesis Canada Inc T.PYR

RE:RE:RE:Plasma Torch Question For Develop

[Magicmike67]

Found this in a paper on using plasma torches in cement kilns.... Hope this helps. (PYRs Mr Carabin is mentioned.)\

https://publications.lib.chalmers.se/records/fulltext/257463/257463.pdf

The choice of gas in a plasma torch is mainly based on gas enthalpy, reactivity and cost.The most common gases are argon, helium, nitrogen, air and hydrogen. To get a stablearc, the plasma gas flow rate and the electric power supplied to the plasma torch mustbe balanced. The gas flow must be controlled to make sure it does not blow out the arc,but is large enough to be able to push the arc through the nozzle. [13]Plasma torches have various industrial applications within mechanical, chemical and met-allurgical processing. Several applications are mentioned in literature, including: cuttingand welding, evaporation, refining, surface treatment, gas-heating, plasma synthesis, sin-tering, fine-powder preparation and plasma waste-treatment. [13]Today, the maximum power of a plasma torch in industry is 8 MW with a typical efficiencyof 85-90%. [1] Typical data for an 8 MW plasma torch was provided by ScanArc and ispresented in Table 2.3. According to ScanArc, CO2is a very good choice of working gasfor plasma torches.Table 2.3:Plasma torch data provided by ScanArc [16]ParameterValueEffect8 MWVolumetric flow2285Nm3/hTemperature2500-3500°CAn advantage of replacing conventional burners with plasma torches, other than decreasedgreenhouse gas emissions from replacing combustion, is that the operating costs can de-crease, according to a comparison performed by L. Rao, F. Rivard and P. Carabin [17]on a 2 MW fuel oil burner and a 2 MW air plasma torch. They state several reasonswhy the operating costs are lower, including decreased costs of heat production due tofuel consumption being replaced by cheaper electricity. Secondly, no more handling andextraction of fuels would be necessary, meaning less process equipment utilisation andmanpower. Thirdly the volumetric flow of gas could decrease which means that the costof off-gas treatment decreases

developbc wrote: Very nice MakitRain1...great to have someone w some engineer/tech background amongst us...I was just emailing my engineering friend when I re read the post and realized what you just discerned quickly..."the power source" is definitely electricity whereas O2 supply would not be required...thanks so much for your quick and concise easy to follow answer!!

MakeItRain1 wrote:

sounds like your friend is assuming the gas is the energy source. Electricity is the energy source. Different neutral gases can be used with different effects to produce, for lack of a better word, a plasma flame. It certainly is a lot more scientific than that but this is how I explain it to people without a technical background. There is a lot of stuff on the net to explain what plasma actually is.

 

macallan25 wrote: Just on holidays, talking with my good friend today in B.C. Trickle Creek today! He was a well travelled Power Engineer, now retired. Worked around the world - Saudi Arabia, Trinidad and Tobago, New Orleans, and Canada. He was asking how these plasma torches operate. I explained they are a bolt on replacement for the burners on diesel furnaces; cutting GHG emissions. He replied that something powers the plasma torch, figuring oxygen, steam or LNG. High cost if oxygen supply required. Now, full disclosure, I should know more about this, but will kindly ask developbc or another investor with knowledge (kingscorpion?) for some insight here. My friend figures these torches requires a steady stream of oxygen, steam or LNG to fuel the plasma torches. I showed him the press release from July 2 and he is quite curious about the tech. Any thoughts? Would really appreciate any insight to share with him. I'm still learning myself about everything Peter is up to. It's just fascinating. Crazy what we r sitting on. We r so close to +$10!!! Long and strong!!!