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Plate and Frame Heat Exchangers

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Language: en

00:00:11.360
plate and frame heat exchangers consist
00:00:14.780 00:00:14.790 of a series of plates held together with
00:00:16.640 00:00:16.650 a frame each plate is the boundary where
00:00:19.910 00:00:19.920 heat transfer occurs between hot and
00:00:22.220 00:00:22.230 cold fluids the spaces between plates
00:00:25.490 00:00:25.500 are called channels and there are two
00:00:28.460 00:00:28.470 utility fluid channels for every product
00:00:31.130 00:00:31.140 channel this is the minimum
00:00:33.260 00:00:33.270 configuration for a pass
00:00:35.270 00:00:35.280 although a typical pass has many more
00:00:37.639 00:00:37.649 channels a gasket is used between
00:00:40.340 00:00:40.350 each channel to hold utility or product
00:00:43.069 00:00:43.079 flow in that channel in order to keep
00:00:45.860 00:00:45.870 fluid spread out across the plates the
00:00:48.319 00:00:48.329 plate surface is corrugated into a
00:00:50.660 00:00:50.670 v-shaped pattern the v-shaped stamp is
00:00:53.840 00:00:53.850 alternated between plates facing each
00:00:56.150 00:00:56.160 other to enhance mixing in the channel
00:00:58.880 00:00:58.890 flow special plates called
00:01:01.340 00:01:01.350 end or transition plates with unique
00:01:03.889 00:01:03.899 gaskets and blocked ports direct over
00:01:06.649 00:01:06.659 all product and utility flow in a pass
00:01:09.429 00:01:09.439 these plates are used at the end of a
00:01:12.260 00:01:12.270 pass or next to the frame looking at
00:01:15.050 00:01:15.060 flow in this one pass configuration
00:01:17.530 00:01:17.540 utility flow moves through an inlet and
00:01:20.539 00:01:20.549 through every other channel before it
00:01:23.090 00:01:23.100 exits the heat exchanger product flow
00:01:25.820 00:01:25.830 does the same except in the opposite
00:01:28.429 00:01:28.439 direction the hot and cold fluids
00:01:30.950 00:01:30.960 typically run in counter current
00:01:32.780 00:01:32.790 directions to maximize heat transfer
00:01:35.740 00:01:35.750 although the heat exchangers shown is in
00:01:38.749 00:01:38.759 a one pass setup plate and frame heat
00:01:41.539 00:01:41.549 exchangers can also be configured in two
00:01:44.389 00:01:44.399 or multipass arrangements plate heat
00:01:47.870 00:01:47.880 exchangers are known for their low cost
00:01:50.149 00:01:50.159 small footprint and ease of
00:01:53.230 00:01:53.240 reconfiguration
00:02:00.890 00:02:00.900 you

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