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The Importance of Combustion Tuning - Boiling Point
WEBVTT Kind: captions Language: en
00:00:00.060 we're inside a 650 horsepower mobile 00:00:02.36000:00:02.370 boiler room that we just completed it's 00:00:04.37000:00:04.380 getting ready to roll out into our fleet 00:00:06.59000:00:06.600 now this boilers got a high-efficiency 00:00:08.54000:00:08.550 burner on it now just because of Thai 00:00:10.75900:00:10.769 fishing doesn't mean that it's always 00:00:12.49900:00:12.509 going to be efficient if it's not set up 00:00:14.20900:00:14.219 correctly now we haven't had a Hey Jude 00:00:16.49000:00:16.500 segment in a while so we're gonna go 00:00:18.01900:00:18.029 check out Jude Wolf who has a demo set 00:00:20.84000:00:20.850 up to talk a little bit about combustion 00:00:22.88000:00:22.890 today on the boiling point 00:00:37.36000:00:37.370 the importance of proper combustion 00:00:39.49000:00:39.500 tuning is both financial and mechanical 00:00:42.99000:00:43.000 excess air or insufficient air is going 00:00:46.81000:00:46.820 to impair our combustion efficiency and 00:00:49.39000:00:49.400 it's going to lead to higher fuel bills 00:00:51.70000:00:51.710 but it can also reduce our ability to 00:00:55.39000:00:55.400 generate steam if we build up soot or we 00:00:58.24000:00:58.250 carry too much air through the process 00:01:00.68900:01:00.699 what we've got an example of here is a 00:01:03.58000:01:03.590 very lean flame because the air aperture 00:01:06.01000:01:06.020 on this burner is wide open what we do 00:01:20.95000:01:20.960 when we tune a boiler is using feedback 00:01:23.53000:01:23.540 from the stack adjust that to get the 00:01:26.17000:01:26.180 optimal flame an optimal flame allows 00:01:32.35000:01:32.360 you to get the most BTUs out of your 00:01:34.60000:01:34.610 cubic foot of gas so the question is is 00:01:38.05000:01:38.060 the less air the better not necessarily 00:01:42.24000:01:42.250 if we reduce the air beyond full 00:01:46.69000:01:46.700 combustion of the fuel will rapidly suit 00:01:48.82000:01:48.830 the heat exchanger and we end up with 00:01:51.58000:01:51.590 much higher fuel bills we can actually 00:01:54.33900:01:54.349 get a buildup of soot and very short 00:01:56.46900:01:56.479 time as a result and this instance you 00:01:59.94900:01:59.959 can actually see the soot forming on the 00:02:02.41000:02:02.420 side of the vessel the exact same thing 00:02:04.90000:02:04.910 can happen on the inside of your tubes 00:02:07.18000:02:07.190 on a firetube boiler inside the firebox 00:02:09.85000:02:09.860 on a water to boiler and thats it's 00:02:12.49000:02:12.500 going to continue to create more more 00:02:15.33900:02:15.349 insulation between the flame and the 00:02:17.77000:02:17.780 vessel and result in less and less heat 00:02:19.93000:02:19.940 transfer I'm just adjusting this by hand 00:02:24.33900:02:24.349 and it's really a fixed rate of flame 00:02:26.58900:02:26.599 but we can actually see we're getting 00:02:28.63000:02:28.640 more heat transfer now than we are when 00:02:34.80900:02:34.819 we have excess fuel and not enough air 00:02:37.27000:02:37.280 we've got the same amount of fuel going 00:02:39.01000:02:39.020 into the process but because not all the 00:02:41.29000:02:41.300 fuel is actually being combusted our 00:02:44.11000:02:44.120 boiling rates dropping 00:02:48.79000:02:48.800 so theoretically with this we could 00:02:50.92000:02:50.930 actually adjust till we got the highest 00:02:52.57000:02:52.580 boiling rate and that would be the most 00:02:54.49000:02:54.500 efficient point on your burner you're 00:02:57.70000:02:57.710 gonna have modulating fire so you're 00:03:00.52000:03:00.530 gonna have linkages or servos that 00:03:03.01000:03:03.020 position the fuel and air as required 00:03:06.37000:03:06.380 through the firing range to meet your 00:03:08.05000:03:08.060 demands so we'll use an analyzer on the 00:03:10.90000:03:10.910 stack to determine what our final result 00:03:13.27000:03:13.280 is and optimize it throughout the firing 00:03:16.21000:03:16.220 range well appreciate you coming in 00:03:19.00000:03:19.010 talking a little bit about combustion 00:03:20.86000:03:20.870 with us 00:03:21.37000:03:21.380 now remember Jude Wolfe is one of our 00:03:22.99000:03:23.000 instructors in our boiler university so 00:03:24.91000:03:24.920 if you haven't check out all of the 00:03:26.98000:03:26.990 classes or a little bit about boiler 00:03:28.69000:03:28.700 university click right here and you can 00:03:31.66000:03:31.670 always follow us right here on all of 00:03:34.00000:03:34.010 our social media and we'll see you next 00:03:36.13000:03:36.140 time on the boiling point
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