Assistente AI
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00:03:730Michele De Carli: All right, so, the, the idea… sorry, so,
00:08:560Michele De Carli: So, where we have a radiant system, okay, due to the fact that we are not allowed to
00:15:680Michele De Carli: To cool down the surfaces down to the condensation temperature, okay, so to the dew point temperature, we needed to,
00:27:260Michele De Carli: they unify the buildings, okay? Alright, so here I want to show you the different types of solutions, okay, that you have.
00:40:850Michele De Carli: So as, coming back to the… to the… what we did when we saw the,
00:48:840Michele De Carli: The thermal load, also cooling load, and the vapor load, okay?
00:54:970Michele De Carli: Here you see the different possibilities that you have here at the radiant flowing.
01:01:260Michele De Carli: You're seeing, okay, which doesn't matter, here is the floor.
01:04:910Michele De Carli: And in this case… This laser, of course, by working on the water.
01:13:260Michele De Carli: in the pipes embedded in the structure, right? Or discredo.
01:18:650Michele De Carli: the gypsum board, okay, you are going to,
01:25:270Michele De Carli: to cool the BD, but from the sensible point of view, so you are going to
01:31:780Michele De Carli: Subtract the sensible load of the bearing, okay?
01:36:220Michele De Carli: This is, of course, your generation… you have the generation of water, and in this case, you have two solutions. One is this one, okay, where you are extracting the latent heat, okay?
01:53:860Michele De Carli: And it means that you need a dehumidification in the room, okay? So the dehumidifier is a machine which is
02:01:670Michele De Carli: Which is subtracting the landing load of the building, so you're supplying the air as it is outside, okay, so even if you have an atomic retention system, and of course.
02:15:600Michele De Carli: In order to keep the relative humidity at a certain level, you need to, to absorb the… to condense the vapor into water.
02:27:20Michele De Carli: So we need a special, cooling cycle here, okay, which is the deodificator, okay?
02:34:730Michele De Carli: Sorry, will you be fire?
02:37:370Michele De Carli: And in this case, you are subtracting the latent heat inside the building. And here we will see we have two types of the unifiers, okay?
02:48:780Michele De Carli: This is the cheapest way. We will see if it is also the most efficient way, okay? The other solution?
02:58:700Michele De Carli: Is, as we have seen, okay, to work on the, air.
03:08:390Michele De Carli: Supply, okay, so on the air that you have to supply in the room.
03:13:20Michele De Carli: As we have seen before, at least…
03:17:90Michele De Carli: Profitably a primary air or air-water system solution, okay, where you are dehumidified the air by, by cooling the air with a cooling coil here.
03:31:230Michele De Carli: And to, in this case, you will diminify the air and in the moon, okay, and you are going also to move the air in,
03:43:650Michele De Carli: So they're supplying your email.
03:47:570Michele De Carli: While the regular server can be extra, the sensible, similarly to what we have seen in the… during the course.
03:55:930Michele De Carli: So, this is the sketch of the… Okay? Are they,
04:04:280Michele De Carli: of the systems, okay? So, basically, what you should do in order to… to absorb the water, okay.
04:12:920Michele De Carli: is to have a cooling cycle inside, and of course.
04:17:100Michele De Carli: In this case, we'll have a cooling flow, which is the humidified near, and then you…
04:23:580Michele De Carli: you reject part of the hint, okay, by the code answer, so this is a cooling cycle, okay?
04:31:950Michele De Carli: And this is how you do that, okay? This is for, like, the usual portable liquid fires, okay?
04:42:610Michele De Carli: So, if you buy a dehumidifier, okay, this is what the dehumidifier does, okay? Of course, as you know, the…
04:52:80Michele De Carli: Air that will be thrown away, okay, that will be outgoing from this machine will be more than the air, and then because, of course, you have the contrast, so, okay.
05:04:10Michele De Carli: On top of the cycle. So,
05:09:910Michele De Carli: This is, I mean, the usual way, okay, you can do that. I mean, basically, the principle is the same, but there are some differences in the cycle and how to release the
05:23:300Michele De Carli: let's say, special, addressed the amidifiers for radiant system solutions. So, one is the so-called isothemaidifier, and the other one is the new air conditioners, okay?
05:39:360Michele De Carli: Oops, sorry.
05:42:440Michele De Carli: So, let's have a look at the first type. So, the isothement part.
05:47:30Michele De Carli: As you can see, you cannot see it, okay, but I mean, what you can guess, okay, this is the filter, okay, of course, like you have.
05:56:00Michele De Carli: This is, this is the water of the… this is the water of the… radiant.
06:06:120Michele De Carli: system, okay? So, we have the manifold, or the radiant system that you have breathing, Size, right?
06:15:960Michele De Carli: Okay? So in cooling, okay, you will work also with the radiant system for cooling.
06:23:430Michele De Carli: you will have the circuits to the different rooms, okay? So, beside the circuits of the room, as you will see, okay, you have, usually, two, additional,
06:40:370Michele De Carli: Oh, let's see, one output, okay, let me see how we put this down. You will have an additional output, okay, so you will have a special circuit, which is going to cool down, okay, well, to cool down.
06:55:130Michele De Carli: the, basically, the cycle of the dehumidification, okay? So, you want to release air not at higher temperature, as you usually do with the portable DMD files. In this case, what you do? You…
07:10:250Michele De Carli: use the water, the same water, it's a parallel circuit, of course, but the same temperature water that you have in the Iranian circuits, okay, which is 15, 17 degrees C, okay, you have a first cooling coil, so you pre-cool the air, okay, the air from the room.
07:28:400Michele De Carli: Okay? Then you have the… The,
07:35:690Michele De Carli: evaporation, alright? Okay, so here I have here a circuit, okay, a cooling circuit. Okay, I will try to highlight it, if possible.
07:48:850Michele De Carli: In any case, okay, the currents, the cycle is…
07:53:610Michele De Carli: This one here, okay, so this is… the cycle.
07:59:150Michele De Carli: This is the propane grave.
08:01:360Michele De Carli: Okay, so you're going… it's… here you have the evaporation, sorry, yeah, here you have the evaporation, okay, here you have the compressor, then you release the heat into the sink here, okay, this is the country wave, okay, and you see the sun.
08:19:170Michele De Carli: And you're going to cool, to pre-cool and cool again the air by means of the radiant cooling water. Okay, so the chill, which is producing water for the cooling.
08:34:620Michele De Carli: floor, pool, sitting, okay? We'll reuse also contractool and post-cool and refuel the air, so that the
08:44:810Michele De Carli: you remove the delta P that you have due to the compression of the cycles, okay? So, basically, the air enters at 26 degrees C, more or less, okay, which is the usual temperature that you use for
08:59:900Michele De Carli: the, for the indoor temperatures that you have in summer, okay? And, you have 26 degrees C, and then here at the outlet, you have 26 degrees.
09:12:410Michele De Carli: That is why it's called isothermal delimidifying, okay? So, basically, in this case, you are out taking the latent load plus the compressor energy, okay, due to the, due to the cooling cycle in order to delimid out the
09:32:240Michele De Carli: So, you will, you will…
09:36:770Michele De Carli: You will then use the water secret, okay, in order to, let's say.
09:43:610Michele De Carli: They unify and release the air at the same temperature of the… Okay. Now…
09:54:430Michele De Carli: for the air conditioner, okay, instead, in this case, we have that the…
10:01:890Michele De Carli: I will highlight in blue the pool.
10:06:880Michele De Carli: cycle of the… Sorry.
10:09:460Michele De Carli: Sorry.
10:10:500Michele De Carli: So, in this case, the… I will highlight in blue the… the… Water, okay, of the
10:19:440Michele De Carli: circuits, which are going to the supply return manifold of the radiant system. Okay, so from the radiant system, you have a parallel circuit.
10:29:730Michele De Carli: Which is then going into the prelude coin.
10:36:440Michele De Carli: Okay, and then to the rate, we'll call it. Okay, and this will then go to the manifold that you have for the same manifold that you have for the radion.
10:47:500Michele De Carli: floor or ceiling, okay? In this case, the… you are working with the water of the fully radiant parallel circuit from the radiant system.
11:03:250Michele De Carli: Okay, so the parallel circuit of the radiant system will be this, okay, which will…
11:11:460Michele De Carli: again, enters into the pre-cooling coil, okay? And then here you have the cooling cycle, okay? Here, you're going from the evaporator to the compressor. The compressor, then, we will have
11:28:720Michele De Carli: We'll have, sorry,
11:33:50Michele De Carli: two possible, flows, okay? One will enter in the…
11:39:670Michele De Carli: red hit coil, okay. Sorry, one will go into the red hit coin here, okay. And in this case, you have that part of the
11:52:130Michele De Carli: Of the, of the condensed refrigerant… sorry, the gas, the refrigerant gas, which is condensing, okay.
12:01:860Michele De Carli: We'll then, instead, go into a freezer and water heat exchanger, where you are going to release part of the condensation.
12:15:240Michele De Carli: energy, okay, terminal energy, that, is not,
12:21:980Michele De Carli: It's not heated up, raised the hair, okay?
12:27:240Michele De Carli: And then here you have the protein wave, okay, and this is how the cooling starts. So basically, you pull down here, first with the water of the radiant system.
12:40:960Michele De Carli: parallel circuit of the gas system, okay? Then you have the cooling side on this side, which is
12:46:850Michele De Carli: cooling and dehumidifying here, the… after the compressor, you go partially, okay? Partially, you go with in the
12:56:640Michele De Carli: In the day,
12:58:820Michele De Carli: In the red boil, and partly, most of the heat will go then, okay, will be released into this… into the water of this.
13:10:800Michele De Carli: Okay, clear.
13:13:520Michele De Carli: So, in this case, you will reheat the air, but not as much as in the other case. So in this case, you could have air entering at, let's say, 20, 21, it means 90 degrees C. Okay, so the air will also…
13:28:10Michele De Carli: then cool down a little bit the oil. Okay, so that is why it's called the U Air Conditioner.
13:36:820Michele De Carli: Okay?
13:38:20Michele De Carli: Alright, so, there are also the other two possibilities is…
13:44:120Michele De Carli: work with the fire unit, or with the split system, okay, and by means of control, mechanical encryption as we use. Okay, so…
13:54:910Michele De Carli: we have already seen, and this is how you can do that, okay? All right, so let's have a look at this, so we analyzed a usual signal.
14:07:450Michele De Carli: It's a flat, okay? But, okay, and in this case, you can see it's a regular flat, okay, not that big. It's 60 square meters, okay? The U-value, so the walls are quite…
14:21:840Michele De Carli: are insulated, okay, well insulated, okay, today they would be even smaller SU value, but it doesn't matter. And this is the pattern of the
14:35:110Michele De Carli: You cannot see that. In the sliding me. I will not… I will not draw… draw all the… all the… all the parts, okay? But you can see there are two… two sides, two…
14:46:560Michele De Carli: So if it's in the living room, one in the kitchen, one in the bathroom, and one in the… in the bedroom, okay? So we're supposed to have a parket on the floor, okay? So what you will be doing is…
15:00:630Michele De Carli: our… we have a developed model for, for radiant system. It is just used for… not as dead, for research purposes, okay?
15:10:790Michele De Carli: And we analyzed three climatic conditions. So, unfortunately, you cannot see anything, but basically what you do, you can simulate the water flow into the pipes, okay, so you provide the, as you usually do, you supply the mass flow rate and the temperature inlet, okay, and then you get the temperature up. I want…
15:32:920Michele De Carli: spent time on that. So, we made several… we made, let's say, the simulation, looking at, what happens if we have no
15:42:10Michele De Carli: No, just natural ventilation, so no dehumidification, okay.
15:47:390Michele De Carli: And as of the fire, which is the first time that we have seen, the air conditioner from the radiant with mechanical ventilation, okay? So these are the schemes of the… of the, of the chiller… of the cooling cycle, okay, you can see.
16:07:570Michele De Carli: We made…
16:10:180Michele De Carli: did in energy and buildings, we made for ritual, we made the sensible and latent loans, variable over the day, okay, fine. And this is the latent load process, okay? So, we did exactly what you do in energy plus.
16:26:540Michele De Carli: Alright, so…
16:28:230Michele De Carli: These are the results, okay, for the three locations. So you can see that in… this is in terms of need, okay, of energy.
16:40:320Michele De Carli: So in terms of energy need, you can see that, of course, by having the same,
16:50:160Michele De Carli: Alright, sorry.
16:53:500Michele De Carli: Okay, that's the point. Not here, let me know in the last picture that I modified. Okay, so we have Venice, Rome, and Bahu. Okay, so here, north of Italy, south of Italy, and south of Italy. So you can see that by keeping the same
17:08:890Michele De Carli: The same,
17:12:349Michele De Carli: U-value, okay, of course, the energy need decreased when we go to smaller degree days, okay? While for cooling, you can see there is not so much difference for the energy need, okay?
17:28:660Michele De Carli: And that is because, it's like that. Because, as you, as you have done already with the carrier method.
17:35:980Michele De Carli: Okay, you have seen that the most attractive parameter is the incoming solar inflation. Okay, so… Alright, so…
17:47:830Michele De Carli: Here, I want to show you the results, okay? So this is the case of…
17:56:370Michele De Carli: Okay, this is the case of, the,
18:04:660Michele De Carli: No dehumidification, so working best with the ventilation, okay? So, you can see that you cannot see anything, but I mean, we… you… you might see in the slides, okay, I will do that here. Okay, this is the temperature pattern, so you can see that you're always above 26 degrees.
18:24:680Michele De Carli: Because… why? Because the relative humidity is very high. Usually, the control strategy when you want to cool with the radiant system is to keep the supply temperature 1 degree above the dew point temperature, okay? So you're measuring the temperature and relative humidity in the rooms.
18:43:560Michele De Carli: And based on the, calculating the dew point temperature, okay, then the supply temperature is always 1 degree above the dew point temperature measurement.
18:54:560Michele De Carli: So, you can see that here, but let's say that practically, okay, the, the supply, the supply A, the supply water of the, of the radio system is basically…
19:07:520Michele De Carli: almost every time, not working, okay? So, you are not able to cool down enough stability, okay? I will skip these two slides, okay? So,
19:20:220Michele De Carli: What we have seen, okay, and also the specific
19:24:380Michele De Carli: the humidity ratio is always above 12 grams of paper per kilogram of that air, which is the usual, okay, recommended value, that you don't have to go above, and here, you don't go above, okay? So, not mistake. So.
19:44:90Michele De Carli: I mean, the modification is required in all private conditions in Italy, okay?
19:51:830Michele De Carli: Now, let's have a look at the, at the radiant system with the isothermal diminified. Okay, so this is the energy, okay, that is extracted, okay, by the
20:08:670Michele De Carli: Here, they…
20:11:20Michele De Carli: radiant system, okay, so this value is the radiant system, okay, I will… I will write it, so… because you cannot see that here. And this is the latent cooling, okay, for isothermal, or the energy extracted by the isothermal
20:30:190Michele De Carli: the humidifier.
20:31:740Michele De Carli: Okay.
20:33:570Michele De Carli: So you can see that, I mean, more or less, the latent load is the same, so you see, if you extract more, you subtract more or less the same.
20:46:190Michele De Carli: La ventroad, okay, from the… the cream is slightly increasing, okay, but…
20:53:380Michele De Carli: Not that much. So this is based on the simulation, okay? So here, this is what the
21:00:920Michele De Carli: Radiant floor is… Subtracting this.
21:05:790Michele De Carli: Cooling load called green energy, okay, and this is their latent energy.
21:10:710Michele De Carli: Okay, now… If you are going to see
21:15:860Michele De Carli: The, the air conditioner, okay. In this case, okay, I will make, because here you just see the same colors, okay, so I may…
21:28:660Michele De Carli: separate the sensible cooling, okay, this is sensible cooling.
21:36:790Michele De Carli: for the day, Okay, this is the latent.
21:45:180Michele De Carli: For the dev.
21:47:130Michele De Carli: And this is the radiant floor, okay?
21:50:90Michele De Carli: So you can see that the dehumidifier, the air conditioner, okay, is able to cool down.
21:56:740Michele De Carli: The room, okay. The latent load is almost the same, okay? Here you see you have 32 plus 9, okay? And in this case, we have 36, okay? So here you see that the demand is slightly higher, okay, in this case.
22:15:950Michele De Carli: What happens if we work with mechanical ventilation? Okay, the results are similar, but here you can see that
22:24:460Michele De Carli: that, the… Radiant floor is working more, so the radiant floor is subtracting more cooling than the
22:35:390Michele De Carli: the air, the humidifier, so the air conditioner, okay? In this case, you can see 25, 21, and 14, okay, while
22:47:980Michele De Carli: You can see that we had 9, 32, and 23. Overall, here we have 65. Overall, I will keep just Denise. Okay, here we have 60.
22:59:410Michele De Carli: And here we have, in the first case, we have almost 60. Okay, so let's say that by working with the isothermal de humidifier, and with the mechanical ventilation system.
23:13:400Michele De Carli: you have similar results. But now, if you look at the primary energy, that was not… it is not Palen. This is Rome, sorry, and this is Palen, and this is…
23:23:960Michele De Carli: And this is the buy, okay?
23:27:510Michele De Carli: I made confusion with another study that we made
23:32:610Michele De Carli: previously to this research, okay?
23:36:770Michele De Carli: So, you can see, this is the radium floor
23:41:920Michele De Carli: with the isothermal de modifier, this is with the
23:46:100Michele De Carli: the air conditioner, and this is with the mechanical ventilation. Here, what is changing, okay, is the amount of fresh air that you use, either 0.6, and then you have recipulation of air, okay, in the mechanical ventilation system.
24:03:110Michele De Carli: Here we work with one air change power, okay, fuller, okay, so they're all…
24:11:410Michele De Carli: Externally. So here you see, this is… these are the results, okay? So here you see that, more or less, in terms of primary energy, so if now you consider the COP of the machine.
24:23:410Michele De Carli: Okay?
24:24:440Michele De Carli: sorry, the EER of the machines, okay. In this case, you can see that you have about 100 kilowatt hours per square meter per year of primary energy. Here you have 90.
24:37:70Michele De Carli: And here you have, let's say, maximum 50, okay?
24:41:720Michele De Carli: So, you can… you can…
24:45:420Michele De Carli: Think about, okay, and also the… this is related to the electricity, because if you divide this by 2.4, okay, then you have the electricity per square meter, okay?
24:56:170Michele De Carli: So you can see, I mean, the results are similar everywhere, okay? So you can see, well, you can see that usually, if you work with the Deo.
25:07:130Michele De Carli: meditation, okay, so the daily fryers. In the rooms, they are cheaper, but you have twice the consumption that you have with the
25:17:660Michele De Carli: the notification on the mechanical regulations, which is, of course, more expensive, but more efficient, okay? Why? Okay? Because in this case here, you are
25:33:340Michele De Carli: You're working… you are demyifying the air, okay? And, of course.
25:39:530Michele De Carli: then the, the vapor which is generated in the room is then exhaust, okay? So it's as you usually do with the mechanical ventilation system, with the unit, right? You have dry and cold air, the vapor of the room.
25:58:760Michele De Carli: developed in the room, so releasing the room, then we'll… We'll,
26:06:200Michele De Carli: We'll get the relative humidity, so…
26:10:760Michele De Carli: as a balance, okay, a vector, but then the vapor is thrown away, okay? In this case, you are, instead, mechanically, okay, by means of the cooling cycle, you are
26:22:450Michele De Carli: You are pulling down, or you are… you're spending energy, okay, in order to
26:28:700Michele De Carli: Absorb the vapor, which is otherwise released, okay?
26:33:670Michele De Carli: Not only, but here, in this case, you're working in the
26:39:650Michele De Carli: in, with, so you're working, as you can see here, I will show you that when you see that later, okay? So in this case.
26:51:230Michele De Carli: You cannot see that. But basically, you work, on the…
26:57:910Michele De Carli: You have a… a joint, so you have… you're working with two separation, two separated, sorry,
27:09:370Michele De Carli: chillers, okay. One is, one is for the radiant system, okay?
27:20:710Michele De Carli: And, one is for the air hanging. So what you usually do, you work similarly to what you do in the
27:32:570Michele De Carli: Similarly to what you do in the In the dehumidifier.
27:40:470Michele De Carli: you have the worker going into the different rooms, okay? So, for the manage vault, you are…
27:49:100Michele De Carli: You are delivering the water to the different circuits in the room, and you cool down the rooms, okay?
27:57:150Michele De Carli: But then you have a parallel cycle, which is then… sorry, it's not going… it's not going here, it's going…
28:06:120Michele De Carli: Yeah, the paradise cycle, which is… it is correct in the slides, okay? Which is then pulling down, okay, the…
28:16:120Michele De Carli: The, condenser of the…
28:21:180Michele De Carli: two languages on board all the machines, okay? So, usually, you have
28:26:920Michele De Carli: you're working with basically two children. One children in the water at, let's say, 17, 20, you see, and then you have the children on board, okay?
28:38:920Michele De Carli: And the children will cool down and maybe 5 years, and then the part of the condensed… of the condensation, it will then reheat again.
28:50:320Michele De Carli: Where, in order to have the type of 16, 17 degrees, 20, whatever.
28:54:780Michele De Carli: And the other part of the other condensation energy, okay, of power, is then released into the evaporation.
29:06:310Michele De Carli: of that ship. So, you have… you're working with, let's say, of course.
29:11:500Michele De Carli: This energy, okay, this energy is, at the end, has Amelia working at low, okay?
29:19:390Michele De Carli: temperature dignification.
29:21:880Michele De Carli: In operation, okay?
29:24:400Michele De Carli: Now, you have a part of the load which is generated at the height.
29:29:40Michele De Carli: So, it's a… the two chillers are linked, okay? But basically, you work with the…
29:37:730Michele De Carli: let's say, from the practical point of view, you work with two different chambers, one at high temperature and one at low temperature, okay? Because it is a cassette cycle, so the ER at this here is basically the ER that you have with air to
29:57:870Michele De Carli: to, with air as external… sorry, as… Recommendation temperature… sorry.
30:08:400Michele De Carli: fear, as…
30:10:870Michele De Carli: medium where you release the condensed energy, okay? And the evaporation will increase due to the push, okay?
30:22:230Michele De Carli: Okay, so how do you do that? As you will see, okay, here you see, there is an iPhone.
30:29:670Michele De Carli: You see that here now in the laboratory, okay? And you have two parallel, and here you have the,
30:38:800Michele De Carli: The supply of the mechanical nucleation.
30:42:600Michele De Carli: verification.
30:44:870Michele De Carli: Since every… since here the manifold is already equipped for just one pipe diameter.
30:53:530Michele De Carli: Due to the fact that for the condensation of the…
30:59:800Michele De Carli: for the mechanical ventilation, okay, for the chiller, the piece on board of the mechanical ventilation unit.
31:06:490Michele De Carli: You need a higher water prorated than you usually have in the cycle, sorry, in the circuits, okay?
31:16:270Michele De Carli: So, in this case, you use two pipes, then you have a T, and then you have one pipe outgoing, okay? So, you see there are two, starting
31:27:370Michele De Carli: pipes, but then they merge in one pipe, okay, because, now, if you're not… I mean, you know that we, you need to have a certain flow rate.
31:38:890Michele De Carli: for each circuit outgoing and reaching the mahal.
31:42:440Michele De Carli: Okay?
31:43:820Michele De Carli: Okay, this is also what, similarly to what we have done in UNIZED, okay, and this is the most, let's say, the cheapest, not the cheapest, but let's say the most efficient solution for cooling the residential beach, okay?
32:02:850Michele De Carli: Okay, so just last but not least, okay, let's say, you can…
32:14:210Michele De Carli: Also, okay, in a system like this, okay, you can also try to…
32:22:880Michele De Carli: condense instead than in the water of the radiant cycle, okay, you can… and in case you have not the radiant.
32:33:510Michele De Carli: system, okay? But if you want to have a system with achieving order in a mechanical ventilation unit for residential buildings, then you could
32:46:330Michele De Carli: Think about to condense the… the energy?
32:50:910Michele De Carli: into the exchanged care, okay? So this is another possibility. In this case, the only point is the
32:58:830Michele De Carli: It's related to the flow rate that you have on the exhaust air, okay, which could not be enough, okay?
33:07:520Michele De Carli: So that, in that case, you might have limited power to, for the cooling load and the humidification from everything, okay? So, it usually…
33:22:710Michele De Carli: It is usually fine, but sometimes we want to release the condensed heat into the air.
33:28:980Michele De Carli: Okay. Then, in this case, with Mindy, you can do that, but up to a certain power, okay? Or you can have an additional air flow rate, okay, external air flow rate, and with, with the additional fan, or with the…
33:48:450Michele De Carli: We've got some… numbers.
33:52:450Michele De Carli: In order to have more air and to cool down, so to increase the power that you can install on the, on the air… on the machine.
34:04:630Michele De Carli: This is the, the case of the so-called, all-in-one machines. Okay, it's not all-in-one machines, it's a fuller system, okay?
34:19:300Michele De Carli: Okay, so… This is a systems, a solution which can be proposed in the market, okay?
34:28:210Michele De Carli: So it's similar to the rooftop that we have seen here yesterday. Okay, rooftop is for commercial uses, okay.
34:35:60Michele De Carli: In this case, you have just one machine, which is included in the mechanical ventilation, okay?
34:43:600Michele De Carli: You have a heat pump on board, okay, which is working between the exhaust air and the supply air, and in this case, you can heat up the air, okay, entering the room, entering the building.
34:57:830Michele De Carli: And at the same time, you have a water tank for the domestic water tank, okay? And of course, you have a resistance for domestic hot water, and you have an additional resistance
35:07:470Michele De Carli: for the engineer, because you are not able to fulfill also the power for interior, okay? So it's a very complex solution. It can be used for, let's say.
35:20:580Michele De Carli: small, medium-sized buildings, okay. Of course, in this case, you are, the machine is not that… this is… Milan is one of the companies produced… producing them, okay? There is also Cleid, okay, but Clean is, let's say, one of the leader
35:40:30Michele De Carli: this field, okay? And in this case, what, what do you do? You are compacting everything, okay, because you have a mechanical engineering system that now you have to do that.
35:51:530Michele De Carli: You have to store, you have the domestic hot water. Domestic hot water is necessary, and you have the heat pump.
35:58:90Michele De Carli: Everything in one, let's say, okay, one…
36:03:350Michele De Carli: boxing, like a preservation, where I can do generator, this box, and this box, they have everything inside.
36:10:790Michele De Carli: Yeah, so, it can work.
36:16:640Michele De Carli: with only multination, it can work for something, it can work for cooling. But for cooling, I want to mention that, of course, you have some, let's say, limited power, okay, because you are condensing the data into the exhaust layer, okay, so…
36:31:790Michele De Carli: for touring, especially, is not that, let's say, powerful, okay? But, I mean, it can be used, okay? So usually, the… this is the solution, which is,
36:44:610Michele De Carli: Which can be installed, okay, in so-called passive buildings, so buildings, which are very well insulated, okay, and where you use… you want to use the air just for heating and cooling.
36:56:110Michele De Carli: You have to remember that sometimes, okay, with excellent conditions, you might not reach the fully, okay, comfort as you can do with our solution, but you can do that.
37:07:400Michele De Carli: And of course, for doing… for working with this machine, okay, you have to, let's say, work from the beginning also on the optimization of the envelope, okay? So, it's a machine that has to be installed once you have
37:27:490Michele De Carli: made a strict collaboration with the applicant, okay?
37:33:80Michele De Carli: Alright, so… That's all for the theory.
37:37:980Michele De Carli: We have two options. We can close the course now, and then look at the… Yeah, we can do that, okay? So let's close the course. So I will, again, recap a little bit of the… the… the exams, rules, and dates, okay? And then we are going to have the…