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Formulas of the Boiler Industry - Boiling Point
WEBVTT Kind: captions Language: en
00:00:00.000 always talking a lot about some 00:00:01.49000:00:01.500 technical and mechanical things on the 00:00:03.50000:00:03.510 boiling point there's actually a lot of 00:00:05.36000:00:05.370 math and formulas that are used for 00:00:07.57900:00:07.589 different people in the boiler business 00:00:09.16900:00:09.179 that's what we'll be doing today is 00:00:11.00000:00:11.010 we're talking about formulas on the 00:00:12.89000:00:12.900 volume point 00:00:18.60000:00:18.610 welcome to the boiling point I've got 00:00:20.79000:00:20.800 Steven Taylor with us again in the 00:00:22.43900:00:22.449 rental division thought we'd do 00:00:23.85000:00:23.860 something a little bit different I 00:00:25.01900:00:25.029 remember working in the rental division 00:00:26.64000:00:26.650 and people calling in they're asking for 00:00:29.55000:00:29.560 some information they're giving giving 00:00:31.17000:00:31.180 us a little bit but we're always trying 00:00:32.60900:00:32.619 to figure out what do they actually need 00:00:34.59000:00:34.600 you know so I thought we'd talk a little 00:00:36.21000:00:36.220 bit about formulas formulas are 00:00:37.61900:00:37.629 something that are needed in the boiler 00:00:39.84000:00:39.850 industry and we'll talk with some just 00:00:41.97000:00:41.980 some basic formulas first somebody calls 00:00:44.61000:00:44.620 in they actually have horsepower 00:00:47.28000:00:47.290 how do you do pounds per hour how do we 00:00:49.82900:00:49.839 get pounds per hour when they give us 00:00:51.29900:00:51.309 horsepower yeah it's it's it's pretty 00:00:52.77000:00:52.780 simple with thirty four point five 00:00:54.75000:00:54.760 pounds of steam for a boiler horsepower 00:00:56.64000:00:56.650 so if they tell us they got a thousand 00:00:58.50000:00:58.510 horsepower we know that's thirty four 00:01:00.00000:01:00.010 thousand five hundred pounds of steam an 00:01:01.46900:01:01.479 hour 00:01:01.74000:01:01.750 so you're basically taking horsepower 00:01:03.53000:01:03.540 times thirty pull the point thirty four 00:01:06.21000:01:06.220 point five and that will give you pounds 00:01:08.07000:01:08.080 per hour pounds per hour I remember 00:01:09.60000:01:09.610 sometimes when people come in or call in 00:01:11.46000:01:11.470 they'd say well I have a 30,000 pound an 00:01:14.64000:01:14.650 hour load and I would be like okay I 00:01:18.57000:01:18.580 need to figure horsepower so how do we 00:01:20.49000:01:20.500 do that 00:01:21.12000:01:21.130 just reverse divide it by thirty four 00:01:22.98000:01:22.990 point five that gives you the horse farm 00:01:24.63000:01:24.640 okay so we got our pounds per hour we 00:01:26.27900:01:26.289 divided about thirty four point five and 00:01:28.20000:01:28.210 that gives us two horsepower I know in 00:01:31.10900:01:31.119 some some people's world they think 00:01:33.06000:01:33.070 about BTUs so they'll call in and and 00:01:36.63000:01:36.640 maybe they'll have horsepower I'm sorry 00:01:38.88000:01:38.890 there I've the the BTU yeah but then 00:01:42.87000:01:42.880 we're trying to figure out horsepower so 00:01:44.48900:01:44.499 how do we do that well they'll call in 00:01:46.56000:01:46.570 and they'll say I've got a six million 00:01:48.20900:01:48.219 Btu load okay that's six million Btu is 00:01:51.41900:01:51.429 that input or output well I don't know 00:01:53.48900:01:53.499 well we got to figure that out but most 00:01:56.06900:01:56.079 the time what they'll do is they'll go 00:01:57.33000:01:57.340 to the Waller and they're looking for 00:01:58.98000:01:58.990 six million Btu Btu boiler input and so 00:02:03.30000:02:03.310 they say Jaime I need six million Btu 00:02:05.06900:02:05.079 they really don't know we don't know 00:02:06.77900:02:06.789 either so we just have to go with 00:02:08.60900:02:08.619 duplicate what they have right so if 00:02:10.77000:02:10.780 it's a six million Btu input boiler and 00:02:13.71000:02:13.720 it's a hot water boiler that's really 00:02:15.33000:02:15.340 easy to figure if it's a you know it's a 00:02:18.39000:02:18.400 converter or steam load or whatever 00:02:20.04000:02:20.050 they've got then we've got to do some 00:02:21.42000:02:21.430 calculations to see what size water 00:02:23.16000:02:23.170 they've got you know it's 33 million Btu 00:02:26.19000:02:26.200 output per boiler horsepower so that's 00:02:28.53000:02:28.540 how we convert the BTU turbo to more 00:02:30.84000:02:30.850 respond 00:02:31.37000:02:31.380 okay so there's there's a number yeah 00:02:34.69000:02:34.700 33,000 475 if I if I'm saying that 00:02:38.66000:02:38.670 correct yeah and you actually take the 00:02:40.73000:02:40.740 BTU divide it by that constant which is 00:02:44.12000:02:44.130 33 475 and that gives you the horseplay 00:02:46.94000:02:46.950 yeah yeah so that's kind of the formula 00:02:48.83000:02:48.840 for that one and that's the output yeah 00:02:50.66000:02:50.670 but right okay all right well maybe we 00:02:54.35000:02:54.360 move to another thing that I remember 00:02:57.41000:02:57.420 getting a lot of questions they call in 00:02:59.84000:02:59.850 in need of a hot water boiler we have 00:03:03.38000:03:03.390 let's say we have a steam load and we 00:03:06.44000:03:06.450 need to actually convert steam to hot 00:03:09.95000:03:09.960 water so we're trying to figure out what 00:03:12.56000:03:12.570 size heat exchanger are they gonna need 00:03:14.54000:03:14.550 for that so maybe go over that that 00:03:17.63000:03:17.640 formula for us well if they tell us 00:03:20.48000:03:20.490 they've got a I've got a 10 million B 00:03:23.51000:03:23.520 few loads for hot water then we say okay 00:03:27.59000:03:27.600 what's your what's your flow rate well I 00:03:29.63000:03:29.640 don't know what tips arise do you have 00:03:31.76000:03:31.770 that's a 40 degree rise okay so what's 00:03:33.92000:03:33.930 your operating temperature 180 degrees 00:03:36.92000:03:36.930 okay so now I know I've got a 140 degree 00:03:39.86000:03:39.870 input 180 degree output the 10 million 00:03:44.24000:03:44.250 Btu loads I'm gonna back him to the flow 00:03:46.13000:03:46.140 rate and you do that by you know taking 00:03:49.43000:03:49.440 that that 10 million Btu load work into 00:03:52.85000:03:52.860 you and you've got eight point three 00:03:54.17000:03:54.180 gallons our eight point three pounds per 00:03:57.17000:03:57.180 gallon of water and divide that into the 00:03:59.93000:03:59.940 the BTU that's going to give you a total 00:04:01.76000:04:01.770 gallon flow rate per hour then you take 00:04:05.06000:04:05.070 your delta T which is forty one forty 00:04:07.40000:04:07.410 one eighty and go through that algorithm 00:04:10.28000:04:10.290 to give give you the flow rate that you 00:04:13.85000:04:13.860 have to pass through the heat exchanger 00:04:14.60000:04:14.610 and that's and that's and you're 00:04:16.16000:04:16.170 basically trying to size the heat 00:04:17.53900:04:17.549 exchanger for that particular driving 00:04:20.57000:04:20.580 writer typically what we'll do is we'll 00:04:22.34000:04:22.350 use a steam boiler and a heat exchanger 00:04:24.02000:04:24.030 is converter to give them the hot water 00:04:25.79000:04:25.800 that way we can take I can think a 250 00:04:28.07000:04:28.080 horsepower boiler and one heat exchanger 00:04:30.11000:04:30.120 and supply a load from four million Btu 00:04:33.26000:04:33.270 up to eight million BTUs it gives me a 00:04:35.33000:04:35.340 real wide range the size that he be 00:04:37.76000:04:37.770 changer for those guys okay last thing 00:04:40.70000:04:40.710 maybe we talked about 00:04:42.58000:04:42.590 you know people call in and say hey my 00:04:44.92000:04:44.930 das down yeah what are some of the 00:04:48.13000:04:48.140 question that you asked it's a size RDA 00:04:50.20000:04:50.210 what sounds boiler were you providing 00:04:52.45000:04:52.460 what's your steam load that's that's the 00:04:54.04000:04:54.050 first thing we want to know then we need 00:04:55.78000:04:55.790 to know what your operating pressures so 00:04:58.18000:04:58.190 we'll know what what's the size of pump 00:04:59.68000:04:59.690 forward now I got to know okay how many 00:05:02.02000:05:02.030 boards are you feeding one two three the 00:05:04.90000:05:04.910 other and then the next thing is or you 00:05:07.36000:05:07.370 feed water valves is that on all four 00:05:09.28000:05:09.290 sub modulating its modulating I know I 00:05:11.29000:05:11.300 can provide my pumps to run all the time 00:05:13.00000:05:13.010 if they have on/off and you have 00:05:15.22000:05:15.230 multiple boilers can I have to provide a 00:05:17.02000:05:17.030 pump for each boiler so I have to do 00:05:19.66000:05:19.670 some more sides to make sure those highs 00:05:21.40000:05:21.410 correctly okay so there's some times you 00:05:23.14000:05:23.150 may have one pump and you might have to 00:05:26.68000:05:26.690 pump them they have three pump they have 00:05:28.60000:05:28.610 three point up running on the four are 00:05:30.52000:05:30.530 you gonna pull but you're you're you're 00:05:32.56000:05:32.570 really needing the total load yes for 00:05:35.80000:05:35.810 for what they need and then the 00:05:37.33000:05:37.340 breakdown of how many boards they have 00:05:39.01000:05:39.020 whether they're on all four fully 00:05:40.60000:05:40.610 modulating operating pressures have all 00:05:42.91000:05:42.920 that criteria as well okay well I 00:05:45.37000:05:45.380 thought we'd go to school today so you 00:05:46.75000:05:46.760 got a few formulas to use you know in 00:05:49.24000:05:49.250 your daily work this also translates 00:05:52.72000:05:52.730 even into the boiler room so it's not 00:05:54.97000:05:54.980 just for the rental boiler when they're 00:05:56.23000:05:56.240 calling in and even cover folks that are 00:05:57.82000:05:57.830 out there I'm in the boiler room we'll 00:05:59.59000:05:59.600 try to have some segments like this 00:06:01.06000:06:01.070 going forward and have some different 00:06:03.73000:06:03.740 formulas that you can use to help just 00:06:06.40000:06:06.410 educate yourself and when you're calling 00:06:08.71000:06:08.720 in and actually asking questions of the 00:06:10.21000:06:10.220 riddle guys but also maybe even on your 00:06:12.01000:06:12.020 on your job site so appreciate Stephen 00:06:15.04000:06:15.050 stopping by we'll see you next time on 00:06:16.87000:06:16.880 the boiling point we found out today 00:06:19.48000:06:19.490 that there's a little bit more in this 00:06:20.83000:06:20.840 business than just welders and wrenches 00:06:22.90000:06:22.910 and torches we actually have some math 00:06:25.30000:06:25.310 and for those that are used in this 00:06:27.22000:06:27.230 boiler business if you like this 00:06:29.17000:06:29.180 information make sure you go to our 00:06:30.49000:06:30.500 website check out our blog we've got all 00:06:32.44000:06:32.450 kinds of great information for you to 00:06:34.63000:06:34.640 better yourself and educate yourself in 00:06:36.46000:06:36.470 this boiler business like us on Facebook 00:06:39.04000:06:39.050 Follow us on Twitter and subscribe to 00:06:41.44000:06:41.450 the YouTube channel 00:06:42.46000:06:42.470 if you like our videos please share them 00:06:44.41000:06:44.420 we'll see you next time 00:06:45.73000:06:45.740 on the boiling point 00:07:04.64000:07:04.650 you
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