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Air to Air Heat Exchanger For Substantially Reducing Energy Bills

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Language: en

00:00:08.930
hi welcome to this video in which we
00:00:11.660 00:00:11.670 will explore how to reduce the heating
00:00:14.030 00:00:14.040 or cooling load while maintaining proper
00:00:16.490 00:00:16.500 ventilation you can save significant
00:00:19.160 00:00:19.170 amount of money on your cooling and
00:00:21.650 00:00:21.660 heating bills so watch this video till
00:00:23.750 00:00:23.760 the end to benefit from it on this
00:00:26.600 00:00:26.610 channel synergy files we aim to inspire
00:00:28.340 00:00:28.350 budding engineers and technicians for a
00:00:30.560 00:00:30.570 better more sustainable world please
00:00:33.229 00:00:33.239 subscribe to the channel to get
00:00:34.820 00:00:34.830 notifications of our latest videos
00:00:37.690 00:00:37.700 Nature has a way of doing things in the
00:00:40.490 00:00:40.500 most efficient of ways many a times it
00:00:43.310 00:00:43.320 inspires an ingenuity and engineering
00:00:46.250 00:00:46.260 take the example of a well known bird
00:00:48.799 00:00:48.809 the crane one might have seen pictures
00:00:51.770 00:00:51.780 or videos of it standing on one leg
00:00:54.139 00:00:54.149 while in icy waters this is done to
00:00:57.290 00:00:57.300 reduce the heat transfer but behind the
00:00:59.720 00:00:59.730 more obvious behavior there's another
00:01:02.209 00:01:02.219 fascinating mechanism in place that
00:01:04.670 00:01:04.680 further prevents the loss of body heat
00:01:07.510 00:01:07.520 there's a little biological heat
00:01:10.070 00:01:10.080 exchanger in the crane located in the
00:01:12.949 00:01:12.959 lower part of its body this heat
00:01:15.469 00:01:15.479 exchanger allows the transfer of heat
00:01:17.570 00:01:17.580 between the outgoing hot blood to the
00:01:20.089 00:01:20.099 legs and the oncoming cold blood from
00:01:23.029 00:01:23.039 the legs the transfer of heat between
00:01:26.029 00:01:26.039 the two blood streams reduces the
00:01:28.580 00:01:28.590 temperature difference between the two
00:01:30.260 00:01:30.270 this means that the outgoing hot blood
00:01:33.050 00:01:33.060 is not that hot anymore and it will lose
00:01:35.900 00:01:35.910 lesser heat when it finally hits the
00:01:38.120 00:01:38.130 portion of the leg that is immersed in
00:01:40.100 00:01:40.110 water it also means that the incoming
00:01:43.070 00:01:43.080 cold blood is not as cold going into the
00:01:46.190 00:01:46.200 body thus with this simple heat exchange
00:01:49.550 00:01:49.560 mechanism the animal saves a lot of
00:01:51.589 00:01:51.599 thermal and in turn metabolic energy
00:01:54.219 00:01:54.229 based on the same principle we have a
00:01:57.320 00:01:57.330 simple device called the a to air heat
00:01:59.660 00:01:59.670 exchanger and this is used for
00:02:01.910 00:02:01.920 preserving the hot and cold environment
00:02:04.219 00:02:04.229 offer dwellings while maintaining
00:02:06.309 00:02:06.319 ventilation requirements if we look at
00:02:09.620 00:02:09.630 our houses in a sense they breathe in
00:02:12.110 00:02:12.120 air and the breed out here also known as
00:02:14.630 00:02:14.640 ventilation older houses because of
00:02:17.660 00:02:17.670 their
00:02:18.140 00:02:18.150 denature of construction tend to allow
00:02:20.210 00:02:20.220 more air in and consequently also
00:02:23.089 00:02:23.099 ventilate more air out modern houses
00:02:26.930 00:02:26.940 have a more a tight construction this is
00:02:29.899 00:02:29.909 due to the usage of elements like double
00:02:32.570 00:02:32.580 doors double glazed windows and other
00:02:35.180 00:02:35.190 snugfit sealing mechanisms around the
00:02:38.030 00:02:38.040 openings there is still some amount of
00:02:40.850 00:02:40.860 hair that gets in in fact it is
00:02:43.430 00:02:43.440 important that it does get in and leaves
00:02:46.280 00:02:46.290 the dwelling
00:02:48.809 00:02:48.819 for a healthy living the UK building
00:02:51.119 00:02:51.129 regulations require one air change every
00:02:53.879 00:02:53.889 two hours
00:02:55.099 00:02:55.109 so with that ventilation requirement
00:02:57.780 00:02:57.790 there is a problem of energy loss in
00:03:00.360 00:03:00.370 other words we do on the air to change
00:03:02.190 00:03:02.200 but we do not want the energy in the air
00:03:04.860 00:03:04.870 to change if you're looking to heat the
00:03:07.080 00:03:07.090 house then we do not want the incoming
00:03:09.149 00:03:09.159 air from outside to be much cold
00:03:11.270 00:03:11.280 likewise if we are trying to cool the
00:03:13.589 00:03:13.599 space we wouldn't want the incoming air
00:03:15.899 00:03:15.909 to be too hot for this purpose we can
00:03:19.500 00:03:19.510 use the air to air heater also sometimes
00:03:22.199 00:03:22.209 referred to simply as a exchanger the
00:03:25.830 00:03:25.840 process through which the energy is
00:03:27.479 00:03:27.489 retained is called mechanical
00:03:28.619 00:03:28.629 ventilation heat recovery
00:03:31.129 00:03:31.139 there are various designs of a to air
00:03:34.080 00:03:34.090 heat exchanger some are passive
00:03:36.899 00:03:36.909 solid-state devices and have no moving
00:03:39.089 00:03:39.099 parts like the recuperator while the
00:03:42.149 00:03:42.159 others have moving components like a
00:03:44.520 00:03:44.530 thermal wheel using the recuperator is a
00:03:48.839 00:03:48.849 very cost effective way of reducing your
00:03:51.119 00:03:51.129 energy bills
00:03:52.229 00:03:52.239 most of them come with a fan that
00:03:54.449 00:03:54.459 consumes low power 12 watt 240 watt
00:03:57.509 00:03:57.519 there are three different kinds of
00:03:59.670 00:03:59.680 recuperator available in the market
00:04:01.679 00:04:01.689 these are vertical flat panel horizontal
00:04:05.520 00:04:05.530 flat panel and cellular cellular
00:04:08.809 00:04:08.819 recuperator 's reach the highest
00:04:10.890 00:04:10.900 efficiency levels of up to 89 percent
00:04:13.349 00:04:13.359 heat recovery if any house or office
00:04:16.740 00:04:16.750 space is efficiently draught proof with
00:04:19.379 00:04:19.389 the only way for the air to enter or
00:04:21.479 00:04:21.489 leave the building being through the air
00:04:23.550 00:04:23.560 exchanger then significant gains can be
00:04:26.370 00:04:26.380 made in reducing the heating or cooling
00:04:28.589 00:04:28.599 bills it should be noted that in the UK
00:04:32.420 00:04:32.430 57% of the energy used in the domestic
00:04:34.950 00:04:34.960 sector is used in space heating in fact
00:04:38.490 00:04:38.500 heating ventilation and air conditioning
00:04:40.670 00:04:40.680 accounts for a significant portion of
00:04:43.379 00:04:43.389 the global energy use air conditioning
00:04:46.830 00:04:46.840 has been identified as the key area to
00:04:48.990 00:04:49.000 focus for reducing energy use and carbon
00:04:51.450 00:04:51.460 emissions by using a to air heat
00:04:54.360 00:04:54.370 exchangers we can not only improve the
00:04:56.640 00:04:56.650 quality of air inside our dwellings get
00:04:59.430 00:04:59.440 rid of the water vapor buildup but also
00:05:02.460 00:05:02.470 save energy on a very large scale it has
00:05:06.060 00:05:06.070 been experimented that through the use
00:05:07.950 00:05:07.960 of good insulation draught proofing and
00:05:10.320 00:05:10.330 compliance with modern building
00:05:12.240 00:05:12.250 standards many houses have been made
00:05:14.700 00:05:14.710 that can be heated with the metabolic
00:05:16.860 00:05:16.870 heat of occupants alone in these houses
00:05:20.610 00:05:20.620 a to air heat exchangers were used as
00:05:24.000 00:05:24.010 standard and with this the video is
00:05:26.580 00:05:26.590 concluded please make sure you hit the
00:05:28.470 00:05:28.480 like button if you learn from the video
00:05:30.270 00:05:30.280 and if you would like more such videos
00:05:32.130 00:05:32.140 to be made subscribe to the channel if
00:05:35.130 00:05:35.140 you haven't already thank you for your
00:05:37.500 00:05:37.510 attention

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