00:00:00.170 welcome to the boiling point always good 00:00:02.84000:00:02.850 to see you glad that you spent some time 00:00:04.34000:00:04.350 with us 00:00:04.84900:00:04.859 we've got drilled blame appreciate you 00:00:06.68000:00:06.690 stopping by again he's always really 00:00:09.68000:00:09.690 anxious to get in front of the camera so 00:00:12.16900:00:12.179 I always like going out with Gerald when 00:00:15.44000:00:15.450 we talk about this particular subject 00:00:16.96000:00:16.970 he's able to explain this in a very 00:00:19.73000:00:19.740 elementary way and thought we'd share a 00:00:23.15000:00:23.160 little bit about combustion today so 00:00:24.95000:00:24.960 drew one should just talk a little bit 00:00:26.17900:00:26.189 about some of the things that we do here 00:00:27.80000:00:27.810 where and how we actually explain 00:00:30.67900:00:30.689 combustion well what I kind of wanted to 00:00:33.50000:00:33.510 talk about was our customers in general 00:00:36.38000:00:36.390 they you know that they want their 00:00:38.69000:00:38.700 boiler to run they look in they see a 00:00:40.91000:00:40.920 flame everything's good 00:00:42.88900:00:42.899 steams being made and they don't work 00:00:45.65000:00:45.660 with it all day every day but they just 00:00:47.69000:00:47.700 wanted to run so they don't necessarily 00:00:48.88900:00:48.899 know if there's a difference between one 00:00:50.69000:00:50.700 flame or the next so that's one of the 00:00:52.97000:00:52.980 things I wanted to talk about as well 00:00:54.41000:00:54.420 we'll get into some technology 00:00:56.36000:00:56.370 differences and how things have advanced 00:00:58.09900:00:58.109 over the years but one of the things I 00:01:00.61900:01:00.629 wanted to get into and I had some people 00:01:02.24000:01:02.250 a lot smarter than me put this together 00:01:03.92000:01:03.930 and this is a a typical situation it 00:01:08.17900:01:08.189 would change furnace size might change 00:01:11.33000:01:11.340 this a little bit the type of burner 00:01:12.83000:01:12.840 might change this a little bit for but 00:01:14.78000:01:14.790 for conversation purposes this 00:01:16.37000:01:16.380 illustrates a lot of good fundamentals 00:01:18.14000:01:18.150 regarding that all flames are not equal 00:01:20.83000:01:20.840 because a lot of the things that are 00:01:22.85000:01:22.860 going on today we talked about fgr that 00:01:26.96000:01:26.970 means flue gas recirculating and that's 00:01:28.91000:01:28.920 utilized a lot of times in order to 00:01:31.21900:01:31.229 lower NOx everyone's got a lot of green 00:01:34.37000:01:34.380 initiatives out there to keep emissions 00:01:36.17000:01:36.180 down and but it by and large that has a 00:01:40.42900:01:40.439 negative effect in an efficiency effect 00:01:43.39900:01:43.409 on on your system so I wanted to kind of 00:01:46.70000:01:46.710 talk about that and illustrate how that 00:01:49.37000:01:49.380 can impact what we do day to day a guy 00:01:53.87000:01:53.880 will typically look at at his flame and 00:01:55.91000:01:55.920 say oh you know it's nice and blue it 00:01:57.26000:01:57.270 looks good but that isn't how you define 00:01:59.88900:01:59.899 flame quality it might be a clean flame 00:02:02.63000:02:02.640 and that's great but it might be highly 00:02:04.67000:02:04.680 inefficient and what I've got here are 00:02:06.98000:02:06.990 some curves regarding flame temperature 00:02:09.91900:02:09.929 and I didn't do this math I had someone 00:02:12.08000:02:12.090 do something 00:02:12.71000:02:12.720 no calculations for me that's much 00:02:14.15000:02:14.160 smarter than I but this kind of goes 00:02:16.31000:02:16.320 over the fundamentals of what's actually 00:02:17.90000:02:17.910 going on in your boiler what we want to 00:02:20.39000:02:20.400 look for what we want to avoid this 00:02:23.75000:02:23.760 first curve that we're looking at here 00:02:25.52000:02:25.530 is is with zero fgr and that's kind of 00:02:27.86000:02:27.870 where I'm going to base the conversation 00:02:29.48000:02:29.490 so as you can see here as you add fgr 00:02:32.63000:02:32.640 your decrease in flame temperature so 00:02:35.33000:02:35.340 let's talk about we don't have any fgr 00:02:37.70000:02:37.710 from the beginning a lot of people don't 00:02:39.65000:02:39.660 have new low NOx burners at this point 00:02:42.26000:02:42.270 and what what what they're often going 00:02:44.78000:02:44.790 to see is we talk about excess air o to 00:02:49.16000:02:49.170 s as an example fifteen percent excess 00:02:52.31000:02:52.320 air is a almost three percent o2 and 00:02:56.06000:02:56.070 that's typical and the engineering that 00:02:58.19000:02:58.200 usually happens with traditional 00:02:59.60000:02:59.610 equipment is that they're hitting three 00:03:01.28000:03:01.290 percent at high fire the problem is as 00:03:04.67000:03:04.680 you come down 00:03:05.87000:03:05.880 a typical firing range you're going to 00:03:08.39000:03:08.400 see excess airs go up excess air and the 00:03:11.24000:03:11.250 o2 level so as an example if we had 30 00:03:13.76000:03:13.770 percent excess air and we're in a lower 00:03:15.26000:03:15.270 firing range we're going to see a lower 00:03:17.54000:03:17.550 flame temperature higher o2 s and you 00:03:20.27000:03:20.280 see us coming down the curve just going 00:03:22.79000:03:22.800 from fifteen to thirty percent we can 00:03:25.28000:03:25.290 see a drop close to three hundred 00:03:26.90000:03:26.910 degrees in flame temperature so I'm 00:03:29.66000:03:29.670 trying to illustrate here that all 00:03:31.22000:03:31.230 flames are not equal and you can see as 00:03:33.59000:03:33.600 we add flue gas recirculation we lower 00:03:36.44000:03:36.450 those temperatures further often I'll 00:03:38.66000:03:38.670 see systems that might be forty or fifty 00:03:40.52000:03:40.530 percent excess air getting up here into 00:03:42.44000:03:42.450 the six and seven percent o2 ranges and 00:03:45.11000:03:45.120 you can see where that can bring it down 00:03:47.21000:03:47.220 you know four five six hundred degrees 00:03:49.28000:03:49.290 in flame temperature so all flames are 00:03:52.69900:03:52.709 not created equal and the things we're 00:03:54.44000:03:54.450 wanting to avoid by understanding this 00:03:56.60000:03:56.610 is avoid flame quenching which is what's 00:03:59.15000:03:59.160 occurring here with the lowering of the 00:04:00.53000:04:00.540 temperature which is necessary to some 00:04:03.38000:04:03.390 degree when we get into the NOx but how 00:04:05.99000:04:06.000 much flue gas we have to add is going to 00:04:09.41000:04:09.420 impact how efficient that particular 00:04:11.24000:04:11.250 system is and not all low NOx are the 00:04:13.64000:04:13.650 same in doing this too we want to avoid 00:04:17.33000:04:17.340 furnace cooling so if we lower our 00:04:19.43000:04:19.440 temperatures we're increasing the air 00:04:20.93000:04:20.940 now we've got our heat exchanger 00:04:21.97900:04:21.989 battling against us 00:04:24.40900:04:24.419 and we want to avoid high the loss 00:04:26.51000:04:26.520 a lot of systems traditional systems in 00:04:29.57000:04:29.580 particular they can use lower horsepower 00:04:32.99000:04:33.000 fans because the velocities are running 00:04:35.54000:04:35.550 through there quickly the heat exchanger 00:04:37.15900:04:37.169 can't perform exactly like we'd like it 00:04:39.05000:04:39.060 so by avoiding some of these things 00:04:41.14900:04:41.159 we're looking for better heat transfer 00:04:42.77000:04:42.780 we also want to look for less 00:04:44.62900:04:44.639 maintenance so there's a lot of 00:04:45.83000:04:45.840 equipment out there that has fewer 00:04:47.14900:04:47.159 moving parts and those are the kinds of 00:04:49.67000:04:49.680 things we're wanting to implement into 00:04:51.35000:04:51.360 our combustion system but these are just 00:04:53.80900:04:53.819 some of the fundamentals that the 00:04:55.27900:04:55.289 average person who's not dealing with 00:04:57.55900:04:57.569 this kind of thing every day simply 00:04:59.36000:04:59.370 looks in the peephole goes I got a flame 00:05:01.37000:05:01.380 and why is your flame any different and 00:05:04.33900:05:04.349 these are some of the characteristics 00:05:05.68900:05:05.699 that really cause that to be different 00:05:07.67000:05:07.680 so how do you have defined efficiency 00:05:10.76000:05:10.770 well not the way that most people do 00:05:14.08900:05:14.099 most people look at this and they say oh 00:05:15.46900:05:15.479 look it's clean it's blue it's it's 00:05:17.39000:05:17.400 efficient those are totally different 00:05:20.33000:05:20.340 things this could be a nice clean flame 00:05:22.21900:05:22.229 but the way we define it is we define it 00:05:24.70900:05:24.719 by the numbers and what we're wanting to 00:05:27.08000:05:27.090 have is low o2 operation because higher 00:05:31.52000:05:31.530 o2 s mean a lot more excess air that 00:05:33.77000:05:33.780 flame quenching that I was describing 00:05:35.24000:05:35.250 earlier we want to keep the co down as 00:05:37.85000:05:37.860 much as possible and I'll explain how Co 00:05:41.12000:05:41.130 impacts different technologies here 00:05:43.79000:05:43.800 shortly if you got oil you know we don't 00:05:46.51900:05:46.529 want a number over one and smoke and if 00:05:48.70900:05:48.719 we are utilizing a low NOx technology 00:05:51.46900:05:51.479 we'd like to keep the flue gas 00:05:53.14900:05:53.159 recirculation or the fgr to a minimum 00:05:55.45900:05:55.469 because as I ate and the flame 00:05:57.55900:05:57.569 fundamentals that can impact more flame 00:06:00.40900:06:00.419 quenching more cooling of the furnace 00:06:02.92000:06:02.930 well as far as like traditional burners 00:06:06.10000:06:06.110 maybe talk a little bit about how they 00:06:08.33000:06:08.340 operate what we have here would be very 00:06:11.60000:06:11.610 traditional you'll see there's tons of 00:06:13.43000:06:13.440 this technology out there right now it's 00:06:16.04000:06:16.050 still being sold it has been improved 00:06:18.80000:06:18.810 quite a bit over the years it's a swirl 00:06:20.80900:06:20.819 head mixing technology but it has some 00:06:24.55900:06:24.569 limitations and they are working hard to 00:06:26.89900:06:26.909 improve it and what those things are is 00:06:30.86000:06:30.870 you don't always have a balanced 00:06:32.86000:06:32.870 fuel-air mix so they utilize throats and 00:06:37.24900:06:37.259 different tiles in order to try to make 00:06:39.26000:06:39.270 sure combustion get 00:06:40.27900:06:40.289 is completed but when they have biases 00:06:43.21900:06:43.229 and different areas they're trying to 00:06:44.60000:06:44.610 create chaos and cause the burning but 00:06:46.67000:06:46.680 sometimes they'll have a bias and the 00:06:48.82900:06:48.839 technician in the field when that bias 00:06:51.07900:06:51.089 occurs you get an elevation in Co and 00:06:53.26900:06:53.279 that's unburnt fuel that can create 00:06:55.62900:06:55.639 poisoning in the air all kinds of things 00:06:58.01000:06:58.020 so the technician is limited to how he's 00:07:00.76900:07:00.779 going to work with that and it's often 00:07:02.45000:07:02.460 by increase in the excess air the o2 00:07:04.36900:07:04.379 levels and a lot of the equipment with 00:07:09.67900:07:09.689 the traditional technology still has 00:07:11.26900:07:11.279 linkages this is a kind of what a 00:07:13.45900:07:13.469 typical linkage system would look like 00:07:16.01000:07:16.020 you've got one motor trying to do 00:07:17.83900:07:17.849 multiple different things with all these 00:07:19.42900:07:19.439 arms so it gets complicated and if you 00:07:22.12900:07:22.139 added a secondary fuel into that it's 00:07:24.67900:07:24.689 that much more complicated for the 00:07:26.38900:07:26.399 technician to get everything to work 00:07:27.73900:07:27.749 exactly right and still be safe so then 00:07:30.70900:07:30.719 he has to buffer in some safety factors 00:07:32.86900:07:32.879 into that so the way that we define the 00:07:35.83900:07:35.849 deficiency or the efficiency with the 00:07:37.42900:07:37.439 traditional burner would look something 00:07:39.23000:07:39.240 like this 00:07:40.60900:07:40.619 they would achieve 3% o2s at high fire 00:07:43.18900:07:43.199 and then as you come down the firing 00:07:45.43900:07:45.449 range to the different rates you would 00:07:47.42000:07:47.430 see an elevation in the excess air or 00:07:49.69900:07:49.709 the o2 levels also with the linkages you 00:07:52.48900:07:52.499 would be more restricted particularly if 00:07:55.04000:07:55.050 you had dual fuels to maybe a four or 00:07:56.83900:07:56.849 three two one turn down which is not 00:07:59.05900:07:59.069 necessarily good or bad it just depends 00:08:01.21900:08:01.229 on the circumstance in the situation you 00:08:04.12900:08:04.139 you could have a lot of turn down 00:08:05.92900:08:05.939 capability and your process never use it 00:08:08.08900:08:08.099 so we try not to make more out of that 00:08:10.27900:08:10.289 than it is it's it's application 00:08:12.52900:08:12.539 dependent but what we do see overall and 00:08:16.57900:08:16.589 I see hundreds of these a year is we'll 00:08:18.82900:08:18.839 see that at the average capacity of the 00:08:20.62900:08:20.639 boiler when you compare its total 00:08:23.48000:08:23.490 ability to use fuel versus what it does 00:08:25.67000:08:25.680 is in that thirty five percent capacity 00:08:27.82900:08:27.839 range so that's why you see there's a 00:08:30.58900:08:30.599 huge opportunity here to save money if 00:08:34.10000:08:34.110 we could improve that situation but this 00:08:36.88900:08:36.899 is what people were used to that's 00:08:38.32900:08:38.339 typically the way traditional burners 00:08:40.30900:08:40.319 were engineered like I said they have 00:08:41.92900:08:41.939 made improvements and they continue to 00:08:44.74900:08:44.759 try to improve that technology where do 00:08:47.21000:08:47.220 most boilers or burners actually run 00:08:49.87000:08:49.880 as far as percentage of running what we 00:08:53.23000:08:53.240 typically see is the boilers being that 00:08:56.26000:08:56.270 they average 35% running in that 30 to 00:08:58.60000:08:58.610 45 percent range and then occasionally 00:09:00.64000:09:00.650 you see them move up to high fire come 00:09:02.74000:09:02.750 back now but when we look at a profile 00:09:05.74000:09:05.750 it's often in this mid-range which is 00:09:08.92000:09:08.930 where we're wasting the fuel as you can 00:09:11.14000:09:11.150 see on the curve 00:09:12.04000:09:12.050 so most boilers are just oversized well 00:09:15.85000:09:15.860 that's the challenge the boiler itself 00:09:18.76000:09:18.770 has to be sized to handle maximum load 00:09:21.43000:09:21.440 right but on normal working conditions 00:09:24.61000:09:24.620 it's not at the max so you've got kind 00:09:27.34000:09:27.350 of a catch-22 that you have to do it but 00:09:30.49000:09:30.500 you waste fuel in the normal range okay 00:09:32.68000:09:32.690 so we've got all this I guess old 00:09:35.10000:09:35.110 technology or traditional technologies 00:09:37.75000:09:37.760 have been any type of advances that 00:09:39.31000:09:39.320 actually there there have and the guys 00:09:42.37000:09:42.380 working with the traditional technology 00:09:44.83000:09:44.840 of recognize that there's a big 00:09:47.41000:09:47.420 advantage to parallel Positioning 00:09:48.97000:09:48.980 Systems what you end up with is you lot 00:09:52.39000:09:52.400 of them nowadays they're touchscreen not 00:09:54.04000:09:54.050 all this one happens to be a touchscreen 00:09:56.20000:09:56.210 you can touch on all the different areas 00:09:58.33000:09:58.340 and get input back and forth and what 00:10:00.67000:10:00.680 this will have in it it'll have its own 00:10:02.17000:10:02.180 flame safeguard so it's still doing the 00:10:04.12000:10:04.130 burner management it'll have its own PID 00:10:06.82000:10:06.830 control which is your proportional and 00:10:08.98000:10:08.990 your integral and your derivative 00:10:10.47000:10:10.480 movements and what that is is how fast 00:10:14.35000:10:14.360 do we move in order to get to a set 00:10:17.47000:10:17.480 point so you have a lot of control over 00:10:19.72000:10:19.730 that and we find that that piece of it 00:10:22.09000:10:22.100 alone can be 70% of the savings 00:10:25.75000:10:25.760 opportunity getting that right staying 00:10:27.76000:10:27.770 on track and then your SEP instead of 00:10:31.57000:10:31.580 having all those little linkage arms 00:10:32.95000:10:32.960 that we saw in the previous picture 00:10:34.72000:10:34.730 you'll have a servo motor and you'll put 00:10:37.54000:10:37.550 one on the fuel and you put one on the 00:10:39.10000:10:39.110 air separately so you're not trying to 00:10:40.84000:10:40.850 use one element to do multiple things so 00:10:43.42000:10:43.430 we get a lot better control you may even 00:10:45.52000:10:45.530 integrate a trim system this particular 00:10:48.73000:10:48.740 one is a multiple trim system it'll do 00:10:51.52000:10:51.530 Co co2 and o2 instead of just o2 but you 00:10:56.86000:10:56.870 could have one that just does o2 that 00:10:59.68000:10:59.690 could have some inherent problems of its 00:11:01.24000:11:01.250 own but a lot of people use those 00:11:03.52000:11:03.530 so something like this you've got your 00:11:05.65000:11:05.660 parallel positioning and you're really 00:11:08.77000:11:08.780 just making old technology as good as it 00:11:11.65000:11:11.660 possibly could be so have there been any 00:11:13.48000:11:13.490 advances I guess on from a burner 00:11:15.61000:11:15.620 standpoint there are and you bring up 00:11:19.96000:11:19.970 the good points because when we define 00:11:21.91000:11:21.920 the parallel positioning on the older 00:11:23.56000:11:23.570 technology what you end up getting to 00:11:25.42000:11:25.430 your point is we maintain the 00:11:28.78000:11:28.790 engineering design that we can do at 00:11:30.76000:11:30.770 high fire and and often the older 00:11:33.76000:11:33.770 technology without this will even 00:11:36.10000:11:36.110 deviate at the hi-fi range will see it 00:11:38.53000:11:38.540 move up to 4% o2 so we get that back to 00:11:41.56000:11:41.570 where it's supposed to be and we make an 00:11:43.42000:11:43.430 improvement on the curve but the control 00:11:46.42000:11:46.430 system as good as it is is limited what 00:11:49.33000:11:49.340 the burner is capable of so that's where 00:11:52.12000:11:52.130 we end up so because we're bound by that 00:11:55.33000:11:55.340 there are other things that have come 00:11:57.43000:11:57.440 out to try to make some additional 00:12:00.04000:12:00.050 improvements and that's going to like a 00:12:02.41000:12:02.420 premix technology in what that does the 00:12:06.55000:12:06.560 easiest way to explain it that most 00:12:08.98000:12:08.990 people can understand or at least people 00:12:10.45000:12:10.460 my age younger people may not know what 00:12:12.91000:12:12.920 standard carburetors are but you go from 00:12:15.19000:12:15.200 the traditional stuff being the standard 00:12:16.72000:12:16.730 carburetor to what most people drive 00:12:19.18000:12:19.190 today where they have a fuel injection 00:12:21.13000:12:21.140 system so what you're doing there is 00:12:23.89000:12:23.900 you're incorporating not only let's put 00:12:26.44000:12:26.450 gas out there and make a chaotic mix 00:12:28.90000:12:28.910 like you would do in a traditional 00:12:29.86000:12:29.870 technology you you do that and you 00:12:32.77000:12:32.780 incorporate pressure and velocity to 00:12:35.11000:12:35.120 make sure you match up the o2 molecules 00:12:37.66000:12:37.670 with the combustion fuel milk molecules 00:12:39.61000:12:39.620 and we get what we call about an 85% 00:12:42.52000:12:42.530 premix and there we're a lot less fuel 00:12:46.90000:12:46.910 dependent so when we go to make our 00:12:50.26000:12:50.270 adjustments it's a lot easier and a lot 00:12:51.97000:12:51.980 cleaner we also utilize the parallel 00:12:54.94000:12:54.950 Positioning System with this technology 00:12:56.47000:12:56.480 but it's direct coupled to it so it's 00:12:59.41000:12:59.420 designed to fit it real well it's 00:13:02.56000:13:02.570 engineered to where you got a large 00:13:04.63000:13:04.640 eyelid you can see what's going on all 00:13:06.49000:13:06.500 the service can be done from the rear 00:13:08.20000:13:08.210 where you see anything can be moved in 00:13:11.11000:13:11.120 and out without taking the burner 00:13:13.03000:13:13.040 actually offline 00:13:15.31900:13:15.329 and we don't have all those imbalances 00:13:18.25900:13:18.269 those biases that we have to clean up 00:13:19.96900:13:19.979 with the air we got a good retained 00:13:21.88900:13:21.899 flame on the head and we don't have a 00:13:24.67900:13:24.689 bunch of refractory that we would have 00:13:27.19900:13:27.209 to deal with we simply pack in around 00:13:29.23900:13:29.249 the cone to keep any heat from hitting 00:13:31.24900:13:31.259 it but it does not become part of the 00:13:33.61900:13:33.629 combustion process and a lot of furnaces 00:13:38.02900:13:38.039 and the boilers you might take up 00:13:39.91900:13:39.929 several feet of the furnace with this 00:13:42.04900:13:42.059 refractory that cracks and breaks and 00:13:44.68900:13:44.699 you have to deal with that and you're 00:13:46.09900:13:46.109 blocking good heating surface that 00:13:48.85900:13:48.869 doesn't get used in the furnace so that 00:13:51.46900:13:51.479 definitely is some of the bigger 00:13:53.96000:13:53.970 improvements and a big advantage there 00:13:55.57900:13:55.589 with the refractory and this kind of so 00:13:58.84900:13:58.859 how the way we define it when we get to 00:14:00.28900:14:00.299 this premix technology is we ended up 00:14:02.62900:14:02.639 flattening out the curve we we sit at 00:14:06.01900:14:06.029 that 3% or actually even better in most 00:14:08.92900:14:08.939 cases and then we improve the turndown 00:14:11.53900:14:11.549 to some degree six eight to one we get 00:14:15.13900:14:15.149 in that twelve percent range and 00:14:16.81900:14:16.829 sometimes even more what we don't want 00:14:18.94900:14:18.959 to have happen is we don't want the 00:14:20.09000:14:20.100 flame turning around and sitting on the 00:14:22.39900:14:22.409 head and burning up it's not uncommon 00:14:24.25900:14:24.269 that someone will set up a particular 00:14:26.41900:14:26.429 retrofit and it'll be turned down to low 00:14:30.52900:14:30.539 and then it burnt out the head so we 00:14:33.25900:14:33.269 make sure that we've got the flame on 00:14:35.41900:14:35.429 the right side of the combustion head 00:14:36.85900:14:36.869 and if we have to air it out slightly 00:14:38.86900:14:38.879 unlike where I've seen a lot of 00:14:40.30900:14:40.319 conditions where they said yeah we want 00:14:41.92900:14:41.939 a 10 to 1 turndown and they're up here 00:14:44.71900:14:44.729 in the a 10 percent o2 which is 60 00:14:48.19900:14:48.209 percent excess air we got the flame 00:14:50.32900:14:50.339 quenching we're cooling the furnace 00:14:52.12900:14:52.139 we're doing everything against the 00:14:53.98900:14:53.999 process where when we get a call for 00:14:56.38900:14:56.399 heat and we're running at these low o2 00:14:58.09900:14:58.109 levels we're not creating Co we 00:15:00.73900:15:00.749 immediately started making steam it 00:15:02.71900:15:02.729 comes to go straight from the flame into 00:15:04.75900:15:04.769 the through the furnace into the water 00:15:06.34000:15:06.350 instead of having to ramp ramp up into 00:15:10.24900:15:10.259 the low to range before we start getting 00:15:13.36900:15:13.379 good production so what you'll see with 00:15:15.40900:15:15.419 this change in technology is that you'll 00:15:18.37900:15:18.389 get a call for heat you'll ramp up real 00:15:20.53900:15:20.549 high and then you'll come back down 00:15:22.57900:15:22.589 causing an over-and-under shooting where 00:15:24.82900:15:24.839 we all tend to modulate will go up 00:15:26.77900:15:26.789 because more heat 00:15:27.75000:15:27.760 available and then we'll come down 00:15:29.33000:15:29.340 slower and sooner because you're going 00:15:32.16000:15:32.170 to get heat immediately this is an 00:15:33.99000:15:34.000 example of what a pre make system might 00:15:36.00000:15:36.010 look like I talked about that islet 00:15:39.27000:15:39.280 normally most traditional equipments you 00:15:41.31000:15:41.320 got a small islet you can't see much as 00:15:43.17000:15:43.180 what's going on but since the design of 00:15:45.72000:15:45.730 this kind of equipment is to actually 00:15:47.88000:15:47.890 service it from the islet you remove the 00:15:49.98000:15:49.990 bolts pull it out there's not a lot of 00:15:52.74000:15:52.750 moving parts so we really don't do 00:15:54.75000:15:54.760 there's not a whole lot of servicing 00:15:56.25000:15:56.260 that goes on but that's a typical of 00:15:59.34000:15:59.350 example of what that might look like 00:16:00.57000:16:00.580 there are some typical performance 00:16:02.31000:16:02.320 numbers that we're talking about with 00:16:04.14000:16:04.150 this good question and here's an example 00:16:07.08000:16:07.090 in this one happens to be a low NOx loop 00:16:09.48000:16:09.490 because in most cases low NOx will mean 00:16:12.45000:16:12.460 less efficient with the premix 00:16:14.73000:16:14.740 technology we still maintain the sub 3 00:16:17.97000:16:17.980 percent o2 across-the-board you see here 00:16:20.19000:16:20.200 not creating any Co this one happens to 00:16:23.43000:16:23.440 be about 8 10 to 1 turn down and we're 00:16:26.91000:16:26.920 achieving the 30 or less ppm all the way 00:16:30.06000:16:30.070 across the board so we're not getting a 00:16:31.92000:16:31.930 big flame quenching we're getting the 00:16:33.81000:16:33.820 NOx we need we're getting efficient so 00:16:36.12000:16:36.130 we're trying to combine all of those 00:16:37.41000:16:37.420 things and not just say NOx or nothing 00:16:40.65000:16:40.660 but we do it getting it efficient we're 00:16:43.38000:16:43.390 usually saving 14 15 plus percent and 00:16:47.28000:16:47.290 fuel by utilizing these kinds of 00:16:49.05000:16:49.060 technologies and we do it on a regular 00:16:51.51000:16:51.520 basis so we've retrofitted about every 00:16:54.18000:16:54.190 kind of equipment there is out there so 00:16:56.13000:16:56.140 we know it's proven we've got hundreds 00:16:57.96000:16:57.970 in the field so real excited about it we 00:17:01.68000:17:01.690 even buy it ourselves now for our own 00:17:03.84000:17:03.850 equipment well we appreciate you 00:17:05.67000:17:05.680 stopping by man always great information 00:17:08.06900:17:08.079 and hope you learned a little bit about 00:17:11.04000:17:11.050 some older technology and some of the 00:17:13.82900:17:13.839 newer technology we'll see you next time
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