00:00:00.030 it started with heaters and coolers okay 00:00:04.03900:00:04.049 so let's start with these several types 00:00:06.20000:00:06.210 we have we have the shell and tube heat 00:00:10.39000:00:10.400 exchanger which is the most common one 00:00:12.83000:00:12.840 we have plates heaters we have a spiral 00:00:15.58900:00:15.599 here and we have to learn or double tube 00:00:18.56000:00:18.570 or double pipe heaters and let's go for 00:00:21.71000:00:21.720 the first one shell and tube the name 00:00:24.83000:00:24.840 implies we are going to have a very 00:00:26.54000:00:26.550 large shell which covers all the inside 00:00:29.48000:00:29.490 tubes typically you will have plenty of 00:00:31.99900:00:32.009 tubes 00:00:32.54000:00:32.550 I mean twenty hundred five hundred etc 00:00:35.54000:00:35.550 the more tubes you have the more control 00:00:38.78000:00:38.790 and heat exchange you will have and of 00:00:42.11000:00:42.120 course it will be more expensive harder 00:00:44.60000:00:44.610 to maintain and so on so as the name 00:00:47.63000:00:47.640 implies you have tubes inside and a 00:00:49.40000:00:49.410 shell outside covering all the tubes you 00:00:52.52000:00:52.530 got a hot fluid which typically is the 00:00:54.83000:00:54.840 one with higher temperature and you got 00:00:56.81000:00:56.820 the cold fluid which is the one with 00:00:58.54900:00:58.559 lower temperature and you can imagine 00:01:00.61900:01:00.629 cold fluid is going to increase in 00:01:02.56900:01:02.579 temperature hot fluid is going to 00:01:04.52000:01:04.530 decrease in temperature therefore this 00:01:06.74000:01:06.750 heat exchanger will act as both heater 00:01:10.10000:01:10.110 and cooler depending on the fluid we can 00:01:13.21900:01:13.229 have multiple tubes inside different 00:01:15.85900:01:15.869 arrangement sizing etc and we also add 00:01:20.42000:01:20.430 baffles because we need to force 00:01:23.12000:01:23.130 movement so here let me continue with 00:01:26.84000:01:26.850 the parts of a heat exchanger you will 00:01:30.26000:01:30.270 have the tube or nozzle so in that goes 00:01:32.69000:01:32.700 here the fluid goes here you have a head 00:01:35.74900:01:35.759 cover so the fluid will not go directly 00:01:37.55000:01:37.560 here so you you are forcing this true 00:01:40.49000:01:40.500 here these are the baffles which allows 00:01:43.96900:01:43.979 movement of the fluid therefore the more 00:01:46.96900:01:46.979 time it takes the more time it has for 00:01:49.60900:01:49.619 transfer and eventually it goes back all 00:01:52.91000:01:52.920 the way back here now this was the 00:01:55.94000:01:55.950 outside outside material the inside 00:01:59.30000:01:59.310 material will be those on the tubes 00:02:02.20900:02:02.219 right here 00:02:03.55000:02:03.560 we have vertical baffles we have 00:02:06.07000:02:06.080 horizontal baffles we have support 00:02:09.04000:02:09.050 saddles right here outside so they won't 00:02:11.08000:02:11.090 Bend or broke we have the shell cover 00:02:14.58000:02:14.590 typically you they will be also covered 00:02:17.62000:02:17.630 with material which allows or will not 00:02:21.69900:02:21.709 allow heat transfer outside the ambient 00:02:24.01000:02:24.020 and let's get more into the arrangements 00:02:28.47900:02:28.489 these are the several arrangements you 00:02:31.21000:02:31.220 can use on shell and tube heat 00:02:33.10000:02:33.110 exchangers let's verify front end so the 00:02:37.24000:02:37.250 front end is this size right here you 00:02:41.02000:02:41.030 can see there are several ways you can 00:02:43.42000:02:43.430 be arranging also different shell types 00:02:45.97000:02:45.980 you have this one which is K type then 00:02:49.27000:02:49.280 you have different cross flow etc and 00:02:51.25000:02:51.260 the rear end many times you will have no 00:02:55.21000:02:55.220 actual ends such as this one right here 00:02:57.27000:02:57.280 that's why it's not a great area 00:03:02.07000:03:02.080 so remember flip Cozine transfers so it 00:03:07.66000:03:07.670 cuts out transfers and more specifically 00:03:11.77000:03:11.780 the different type of configuration this 00:03:14.08000:03:14.090 is a for this piece k for all these and 00:03:17.17000:03:17.180 t because there is no extra data you can 00:03:21.46000:03:21.470 see this is typically used also for 00:03:23.08000:03:23.090 evaporation this will allow to form 00:03:25.69000:03:25.700 gases right here also a B II M and you 00:03:29.56000:03:29.570 can see there is different shells on all 00:03:32.41000:03:32.420 these actually this one and this one are 00:03:34.81000:03:34.820 the same a type a type a type and what 00:03:40.47900:03:40.489 else do we have here well essentially 00:03:41.83000:03:41.840 what you're changing is that here you 00:03:43.99000:03:44.000 have different amount of passes so you 00:03:47.80000:03:47.810 have one tube and then the tubes go back 00:03:50.43000:03:50.440 whereas in this case the tubes just go 00:03:53.17000:03:53.180 to the other side so it depends on the 00:03:55.21000:03:55.220 tab on the number of tubes and so on 00:03:57.58000:03:57.590 these will change as well 00:04:02.80000:04:02.810 so the configuration I'm going to get 00:04:06.26000:04:06.270 that into specifics but very important 00:04:08.93000:04:08.940 guys to note that you can either have a 00:04:13.76000:04:13.770 square pitch 00:04:14.87000:04:14.880 it's queer pitch rotated triangular and 00:04:18.16000:04:18.170 rectangular rhomboid or whatever even 00:04:22.16000:04:22.170 triangular whatever shape you can 00:04:24.20000:04:24.210 imagine on the model you can apply it to 00:04:26.15000:04:26.160 the configuration of the little tubes 00:04:30.43000:04:30.440 now it's very important to know how to 00:04:33.59000:04:33.600 keep maintenance on the tubes inside the 00:04:36.71000:04:36.720 heater and outside the heater that will 00:04:39.35000:04:39.360 be the shell so one of the largest 00:04:42.26000:04:42.270 problems are that you require a magnum 00:04:45.68000:04:45.690 in order to clean all these little 00:04:48.22000:04:48.230 fallings right here and the outside of 00:04:51.17000:04:51.180 the tubes as well more examples 00:04:54.38000:04:54.390 this one is outside the tubes that will 00:04:57.17000:04:57.180 be inside the shell outside the little 00:04:59.60000:04:59.610 tubes you can see the outside material 00:05:02.36000:05:02.370 it might also be very caustic or may be 00:05:05.90000:05:05.910 all dirt or not clean with impurities 00:05:09.11000:05:09.120 costs falling etc 00:05:14.59000:05:14.600 [Music]
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