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Post by travis on Dec 1, 2018 17:38:14 GMT -8
Could exhaust be used in place of clean air for the p channel? Sort of an EGR type of thing that has a channel from inside the bell directly to the port in a batch box
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graham
Junior Member
Posts: 74
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Post by graham on Dec 1, 2018 20:07:16 GMT -8
I'd guess you're then mainly providing ballast gases as secondary air.
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Post by peterberg on Dec 2, 2018 4:13:50 GMT -8
Could exhaust be used in place of clean air for the p channel? Sort of an EGR type of thing that has a channel from inside the bell directly to the port in a batch box Tried this some years ago. Ermm... not so much tried but investigated it as a possibility. Most of the time there's quite some oxygen left in the exhaust gases. In order to be able to feed it to the p-channel inlet (floor or overhead) there should be a pressure difference, the p-channel being the lowest. So I measured the pressure in different spots inside the bell and p-channel. It turned out the desired pressure difference wasn't always there, sometimes the wrong way around. Moreover, the moment that the secondary air is most needed at the height of the burn, the oxygen level is the lowest in the exhaust gases. So I shelved the idea as interesting but not feasible. I have a lot of shelve space.
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Post by travis on Dec 2, 2018 11:50:13 GMT -8
Hahaha good to know thanks!
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Post by drooster on Dec 2, 2018 12:41:10 GMT -8
... It turned out the desired pressure difference wasn't always there, sometimes the wrong way around. Moreover, the moment that the secondary air is most needed at the height of the burn, the oxygen level is the lowest in the exhaust gases. So I shelved the idea as interesting but not feasible. I have a lot of shelve space. Thanks to your thorough methods your "shelved" space is available to everyone, hopefully saving a lot of time and materials.
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