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00:13:390Michele De Carli: Oh.
00:15:780Michele De Carli: so 1st of all, okay, as I was asked by some colleagues of you. We can do this.
00:26:760Michele De Carli: I have contacted the company working on the data centers technologies. And we agreed upon having a seminar on the 13th of May. Right? So
00:44:120Michele De Carli: 13 for me, they should come here.
00:49:380Michele De Carli: it is not confirmed. But in case okay, there is this seminar where we're going to talk about the cooling of data center, which is a a very important topic. And yes, it will not be. It will not be in in
01:08:660Michele De Carli: in
01:09:970Michele De Carli: we. We won't absorb it. Okay? So either you can or you speak it. Okay? Good. Now,
01:35:340Michele De Carli: So we are going now to see how to calculate the radiance system. Emission. Okay? So the radiance system. This is the
01:49:100Michele De Carli: the general. Okay for the calculation method.
01:55:700Michele De Carli: there are the different systems that are listed here, which are the ones that I I told you, okay,
02:08:600Michele De Carli: in. And here we have the different types of radio systems. Okay? So they are. Let's say.
02:18:378Michele De Carli: they are subdivided into different types. Okay, so what we are looking is the this type, this kind of radio system. Okay, so that types so called A and C, while the type B is the one that I told you it is
02:41:79Michele De Carli: it has been proposed for for limiting the thickness on the radius. Okay
02:48:480Michele De Carli: for your report. You have to
02:53:90Michele De Carli: consider. Okay, this type of radiance system. So the usual radiance system. Okay, it doesn't matter what we don't care about the the height, the available height that you have in your house. Even because in the last years.
03:11:400Michele De Carli: maybe 2 or 3 years ago.
03:14:880Michele De Carli: it was introduced that if you are retrofitting your house and you're installing radius system, you have no more lease on the height, so you could have a smaller heights than 2.7. Okay? And still, it's okay. And still it's a residential. So you have the permit to stay and leave. And so so so
03:39:84Michele De Carli: you don't care on the radiators that you have kept on your in your house. If you have another radiance system
03:48:150Michele De Carli: like, what if you have some. If you know how this is done, you can try to use it.
03:55:356Michele De Carli: Anyway, this is the type of radiance system. So the type. Anc, okay, they are. They suppose. Or they are based on the technology where you have the pipes. Okay? The plastic pipes embedded in the in the screen. Okay, above the insular, the insulation. Okay.
04:18:690Michele De Carli: okay, so you can see here the different definitions which, of course, are important because these are the parameters that you have to. That you have to
04:30:360Michele De Carli: consider. Okay in your calculation. Okay? So what you can see here, basically, the pipe spacing is called the team. Okay.
04:41:580Michele De Carli: the diameter of the pipe is the external diameter, the the floor. You can see, this is the screen. Okay? And you can see what is important is the thickness of the concrete layer that you have above the pipe.
05:01:900Michele De Carli: Okay? So the pipe is embedded. Okay? And what is important for your thermal output is what you have on top of your or let's say, which is the distance between the
05:14:860Michele De Carli: your your pipe and the the and the concrete. Or, let's say, the interface between the concrete and the flow.
05:23:80Michele De Carli: Okay?
05:24:686Michele De Carli: Okay, well, this is another type of radiance. But it is not used anymore. Okay, it was used in the nineties, beginning of 2,000, but it disappears since 10 years.
05:38:465Michele De Carli: Okay, we won't talk about tabs. But there is also a calculation method for tabs and also for the capital systems. Okay, so these are different types of you can see this, the tabs you type E, the capital systems are type F, so for each one, we have different methodologies, different possibilities to calculate the
06:00:520Michele De Carli: that I'm gonna help me also for this wooden floor, wooden other floors.
06:07:990Michele De Carli: good heating systems, which are more, which are
06:15:10Michele De Carli: mostly use in the Scandinavian countries. Okay, so this is most I don't know now, exactly. But I think it's here. They are the most used technologies for I mean Sweden, Norway. And okay.
06:35:480Michele De Carli: anyway, so for the different calculation method. Do you have a
06:42:50Michele De Carli: sorry for different types of radiance system? You have a calculation method, simplified calculation method, and of course, being simplified. The validity of this method is in between some ranges. Okay? Because, of course, usually simplified methods. They are simple that you can use them. But of course they have some limitations. And these limits are you can see them here. Okay, we will see them.
07:10:290Michele De Carli: We will see them later on. Okay, so for each of the radiance system. You have different limitations.
07:17:620Michele De Carli: So for the the usual reality system. So for a type, A, B and C, okay, you can use the so-called black box like what I told you. Okay. So I told you that it is based on a regression equation which has been provided by
07:45:550Michele De Carli: and lots of calculation of simulations to the simulations.
07:51:407Michele De Carli: Many different meetings.
07:55:120Michele De Carli: So it is based. These correlations as we receive they are expressed in terms of coefficients. AI and Li, okay, so these are the parameters that you have to put, and you have to. You have to estimate. Okay?
08:17:90Michele De Carli: And we will see later how we can do that based on the geometry and the the and the
08:25:740Michele De Carli: thermal properties of the materials. Then you we you are able to calculate the overall position KH. Of the heating. And in principle you can also calculate it for cooling. Okay.
08:44:478Michele De Carli: you skip recording. Okay?
08:46:770Michele De Carli: But in principle, you can do that.
08:50:50Michele De Carli: He's great.
08:51:360Michele De Carli: And okay. So what can you? What could you what? The the-the-.
09:06:330Michele De Carli: Let's say the boundary conditions. We know them because we have seen them yesterday. Okay, so basically, you have to estimate the heat flow by considering the
09:20:360Michele De Carli: the average temperature of the floor. Okay, which is, of course, related to the temperature, the average temperature of the water.
09:31:07Michele De Carli: And, as we we have seen yesterday, you have a maximum, a maximum heat flow, which is related to a maximum temperature of maximum temperature of 29 degrees in the occupied area.
09:47:450Michele De Carli: Okay, so to be more okay.
09:58:200Michele De Carli: the thermal output of the heating system of the heating floor. Okay, it is not okay. It is not really constant, as we have seen yesterday. So yesterday, I told you, we have
10:14:210Michele De Carli: like for radio system we have. Hr is 5.5.
10:25:460Michele De Carli: Hey?
10:27:10Michele De Carli: The age.
10:29:910Michele De Carli: See, the collective is equally 5.5.
10:33:770Michele De Carli: Well, it's proceed with that. Okay.
10:37:80Michele De Carli: actually, to be more precise, the
10:40:940Michele De Carli: overall, the transfer coefficient is not
10:45:510Michele De Carli: really fixed at 11, but in principle it should be and
10:57:570Michele De Carli: function of the temperature difference between the floor and the room.
11:02:780Michele De Carli: This would be the, I mean, exact equation. Okay, to calculate, overall the transfer coefficient. Okay?
11:13:990Michele De Carli: okay, which is, of course, the heat flow that you have. Okay in terms of Watts per square meter. Okay, this is the influx in Watts per square meter.
11:25:750Michele De Carli: And this is the temperature difference between the room and the sorry the surface. Okay, so you can see that if you have. As we said, 9 degrees temperature difference between
11:39:70Michele De Carli: the room and the floor. Okay, 29, minus 20. You can see, we have 100. Okay, so what I told you yesterday, it's room but, for instance, if you had a 5 degrees temperature difference, okay.
11:58:760Michele De Carli: you have 50. If you use 11, you would have 55. It's not a big mistake
12:06:270Michele De Carli: in case you will rise the temperature when you switch from the system. So but basically, this is the the more connector
12:15:280Michele De Carli: a calculation like that.
12:17:180Michele De Carli: Sorry the the question. Okay, anyway. So what you have to do basically is to check your your specifically
12:30:90Michele De Carli: that you need to provide to the room related to the maximum power which can be delivered by the floors heating system. Okay, we come to this point later. Okay, what is the how do you calculate, then the overall interaction?
12:51:20Michele De Carli: Well, here you see the different parameters that you have to set. You can see there are geometrical parameters. Okay? Which I already told you. It's the pipe spacing the thickness of the screen
13:04:350Michele De Carli: all above the above the the pipe. Okay? The conductivity of the the street of the concrete lambda. E, okay? This is the resistance of the floor covering, which is calculated by simply making the thickness of the floor covering divided by the lambda.
13:31:584Michele De Carli: Okay, the finish material, the external diameter of the pipe, the conductivity of the pipe. Okay?
13:48:120Michele De Carli: And then you have different parameters. Okay, this is the big type. Big type is the type that you have to is, as I told you the one with the pipes embedded in the screen. Okay.
14:01:307Michele De Carli: okay. So this is the general equation that you have to use this implemented. But what you can see is basically, this is the regression equation. Okay, which is used for calculating the thermal output of the radius system. So basically, this is the kh, okay? So the kh
14:30:600Michele De Carli: is a constant B which is fixed. Okay, the the is dependent is dependent on the type of
14:40:990Michele De Carli: system in your case is type A, so it's for you. It's fixed. Okay, there are. There is a different B value for the one where you have the types in the
14:56:580Michele De Carli: we did.
14:59:645Michele De Carli: Okay?
15:01:10Michele De Carli: And then you have different parameters. AI
15:05:920Michele De Carli: with the with the experiment. Okay? And these parameters these have to be defined or or calculated by you. Okay.
15:24:80Michele De Carli: you say, and
15:29:380Michele De Carli: they have to be defined. But also they are being calculated as this. They are already in the excel chart, but
15:37:140Michele De Carli: based on your decisions, on the geometry, internal characteristics, and so on.
15:42:00Michele De Carli: Then this AI and Mi are calculated. Okay?
15:47:176Michele De Carli: I mean, basically, the radiant for thermal output depends on the geometry and the thermal characteristics. If you subdivide the different topics. Okay, then you will find the different a I and a okay. So you can see, this is the equation. Okay for type. You can see that in this case.
16:12:470Michele De Carli: the K the the B is equal to 6.7 Watts, okay? And that
16:24:740Michele De Carli: And this is okay. This is good.
16:27:80Michele De Carli: We skip this. Anyway. You can see we have 4 different
16:31:330Michele De Carli: couple or values A and M, okay, which depend on the different. Let's say subtopic, let's say or topic. Okay?
16:42:810Michele De Carli: So the first, st the 1st topic is the chlorine factor. Okay? So the chloric covalent factor is, is
16:53:960Michele De Carli: is defines. Okay, the Ab factor. So you can see here that Ab is calculated in this way. Okay, so, considering the heat transfer coefficient. Okay, he. This is basically the resistance of the
17:16:329Michele De Carli: of the of the concrete above the pipe level. Okay, this is the type.
17:27:700Michele De Carli: This is the concrete layer.
17:30:450Michele De Carli: This is as you okay from here to here. And and this is
17:39:710Michele De Carli: and this is the they say, this layer here and here you have the layer and the
17:45:980Michele De Carli: broken resistance. Okay, Ab is pre-calculated. Once you set the thickness of the
17:53:150Michele De Carli: of the concrete layer, and of course, also the
17:56:840Michele De Carli: the type of floor covering defined as thickness of the floor covering and lambda of the floor.
18:04:210Michele De Carli: Today, then, this is a BATM, t.
18:11:910Michele De Carli: a, T is or let's say, the is the spacing factor. Okay, so the the
18:20:510Michele De Carli: in this case, 80 is changes. Okay, according to the 80 changes according to the
18:32:479Michele De Carli: resistance of the floor. Covering and empty is a function of this part of the pipe spacing. And you see the methodology. It has a limited.
18:45:850Michele De Carli: a limited
18:52:640Michele De Carli: is limited in the space in the pipe space, you know, they between 5 cm and 0 point 37
19:03:604Michele De Carli: which means, basically, but anyway, you
19:08:790Michele De Carli: usually don't go above 30 or maximum 35, because 35.
19:16:270Michele De Carli: This, okay? So
19:22:803Michele De Carli: here, okay, the once you fix the pipe spacing, then the 80. And once since you have already defined the floor covering. Okay, the 80 and 90 will be calculated accordingly.
19:42:110Michele De Carli: So also at. And T, it's okay. Then we have au, and you.
19:48:280Michele De Carli: okay, so au is again a function of the resistance and the pipe spacing. So there is a table which is implemented. Okay? Also the also the
20:09:280Michele De Carli: enter.
20:12:920Michele De Carli: Okay, let's say the
20:22:980Michele De Carli: interpolation. Yes. Okay. Interpolation. It is the interpolation. No sorry. The interpolation is already included in the x 5. Okay.
20:33:10Michele De Carli: so even I, I, even even if I I couldn't find the word, the the exercise was working anyway. Okay, so whichever was the score between, okay, okay, so the and here. And you, okay, is a function of again, the quickness of all the pipes. Okay?
20:58:720Michele De Carli: And last, but not least, Ad. M. Md, which is the which is the
21:09:390Michele De Carli: which are the parameters?
21:12:150Michele De Carli: Related to the pipe diameter. Okay, so once you define, the ad is also defined by means of the couple of R number D, and D, okay, and Md is a function of that.
21:30:510Michele De Carli: Okay?
21:31:790Michele De Carli: So basically, this is the overall calculation that is implemented in the
21:40:400Michele De Carli: in, the, in the excel sheet. Okay, this is, if you like, if you want to know for type B type d, and so on. And now we have a look at the Excel pool.
21:55:690Michele De Carli: But I have to change the ash doing.
22:05:400Michele De Carli: Okay?
22:30:960Michele De Carli: So the
22:34:650Michele De Carli: are you saying, is it someone the salmon color? The sales are the sales where you have to put the input. Okay, so we expect that I expected, okay, that you change a little bit today values, okay? Between realistic values. Okay.
22:56:270Michele De Carli: so here you can see the the. In this case we have a pipe spacing on 0 point 1. You can change it. Okay?
23:07:616Michele De Carli: Of course, the smaller the type spacing, the greater the I mean
23:18:460Michele De Carli: by fixing the water temperature, the greater will be the over the term management of the system.
23:26:260Michele De Carli: But of course you will have more pipes. The the pipeline will increase.
23:32:120Michele De Carli: It's not a big problem
23:34:440Michele De Carli: in this example. You don't have to pay for the for more pipeline you have to put in. Okay, so if you want to feel rich, you can put 5 cm if you want, I'm joking. Okay, this is the the yes, please.
24:02:980Michele De Carli: The pressure drop. Of course you have to match. You have to check, and this is including in the access
24:11:290Michele De Carli: good point
24:14:340Michele De Carli: the external. Here you have in Italian and in English. Okay, so it's good for the English speaking
24:21:10Michele De Carli: because they will be helping having the b 1 and B, 2 with this excel sheet. Okay, so
24:27:80Michele De Carli: it's for free. Okay? So
24:30:74Michele De Carli: you don't have to pay anything. So this is the thickness above the types. Okay, this is the
24:40:20Michele De Carli: Sorry. No, this is the external diameter of the pipes. Okay, external of the pipes that are used for radiance system. And you can use one of the
24:54:260Michele De Carli: available commercial pipes. Okay, usually the did. I tell you that I don't remember. The plastic is usually used is either is polyethylate. Okay,
25:09:720Michele De Carli: particulate. Or
25:13:230Michele De Carli: Hi, dex. Okay, so it's a tax or PEH. Okay, so text a, PEXA, or PE,
25:31:290Michele De Carli: so basically the same. The same plastic that you use also for the ground sourcing plants. Okay.
25:40:150Michele De Carli: better, more expensive.
25:44:450Michele De Carli: Not that bad, but cheaper. Okay, what is important? But I mean, this is already.
25:51:320Michele De Carli: But by all the manufacturers, what is important is that the pipe has the so-called
25:59:580Michele De Carli: oxygen pipe. Okay, that is because at the beginning, when we had plastic types, if you had no, the oxygen bar will be good. I mean, the water was seen from the pipe. But you could have oxygen coming into the pipes. Okay? And that could lead to
26:19:440Michele De Carli: dirty okay? And and this problem, which is not a big problem. If you have large diameter pipes, regular diameter pipes. But if you're using small diameter pipes, then it becomes a thing.
26:33:900Michele De Carli: Okay, okay?
26:40:10Michele De Carli: now the thickness of the pipes. Okay? So I told you, the pipes are usually ex expressed in terms of
26:50:370Michele De Carli: diameter. Yes.
26:56:590Michele De Carli: like, for instance, 20 by one. Okay, which is this is the thickness. Okay, in millimeters. Of course, you have to put them in. So this is 22 we can put, for instance, 0 point 0 2. And here I can put
27:15:380Michele De Carli: 0 point 0 0 2 and 0 point 0 0 2 3. So my stage is 2 okay, is the thickness. So it's 14 now, 16 and 20
27:32:410Michele De Carli: and okay, script and all that.
27:38:584Michele De Carli: Yes, this, the thickness is 2 okay? And still it doesn't work.
28:11:135Michele De Carli: Yes, because I put the point instead of the point.
28:15:10Michele De Carli: The thermal conductivity of the pipe material is also. You can find it in commercial seat. Okay, usually is like, this is 0 point 3 0 point 3 5 then you have the thickness of the speed above the pipes, 3, 4 cm whatever you like. The thermal conductivity of the speed is usually 1.2. Okay.
28:40:510Michele De Carli: they might sell you special mixer in order to increase the lambda, the thermal conductivity of your concrete layer. But it will be anyway, 1.2. Okay, so don't trust them. Okay? Well, no, I mean, if you use it, there is a small difference. If you're using the usual script like this, or if you're using the
29:07:76Michele De Carli: liquid, the screen. Okay, the liquid screen will be more compact. And in that case the the lambda connectivity will be greater. Okay? Okay. Then. The minimum thickness of the screen from pipe to surface. Yes, this is the
29:26:300Michele De Carli: okay. This is yes, okay, and the thickness of the insulation material. Here you have 0 point 0 4, we can put 0 point 0 3. Okay, for instance, usually in the buildings where you have
29:43:720Michele De Carli: ticket spaces below. Okay, you can use 3 cm of this room. Okay, if you have unlimited spaces, or if you are, if you are on the
29:56:500Michele De Carli: on the basement of the of the floor. Okay of the of the house you could use. You should use a greater thickness. Okay, in order to have a higher thermal systems.
30:08:200Michele De Carli: And and then you have the thickness of this lab, the resistance of this lab, and the plaster and plaster below the insulation lane.
30:20:350Michele De Carli: So you can see here that you have, all the parameters. Okay?
30:28:280Michele De Carli: And here, this is the power. This is the input that you have to do. So room by room. You should put here the the
30:41:60Michele De Carli: the power that you have calculating in design conditions.
30:45:690Michele De Carli: And the area of your of your money. Okay? So in this case, you can see.
30:50:560Michele De Carli: Yeah, I think you know, once, you have 27 meters. Okay.
30:56:280Michele De Carli: okay, let's put 30. Okay? I like.
30:59:650Michele De Carli: And in this case you have that 67 watts per square meter is the heating for your
31:08:920Michele De Carli: so are you able to provide that.
31:13:90Michele De Carli: or do you exceed 29 degrees pretty huge 66, instead of which is the maximum
31:27:410Michele De Carli: for the region. For no, this is for the radiance ceiling.
31:34:230Michele De Carli: But Iranian flores round number
31:38:640Michele De Carli: 100. Okay, so it's okay, we have no problems. Okay, this is the what you don't have to touch
31:47:710Michele De Carli: 6.7. Okay, B, 0. Because this is the the type of radio system that you use. This is the B, okay, that calculated. And these are the calculated A and M, okay, if you like. And if you have time you can look at them and check if they are right or not.
32:05:660Michele De Carli: Okay, if they're wrong keep silent. Don't tell me anything. Okay? Okay? And this is, I'm sure it works. Okay?
32:23:860Michele De Carli: kh, so this is the only transfer coefficient. So 6.8 5 watts per square meter per Kelvin. This is the indoor temperature, and here you have to set the
32:35:130Michele De Carli: supply and the temperature difference between return and and supply and return. Okay? So in this case, you can see you have 33. Okay, if you have as supply temperature 33, you see, you have 3 degrees
32:53:420Michele De Carli: temperature, the fresh. Okay, you can decide 3. I told you between 3 and 5. Okay, so you see that in this case you have 78, and 67. So in this case, it's a fly. Okay? So you can work with 30.
33:10:300Michele De Carli: Still, okay?
33:13:633Michele De Carli: It's okay.
33:18:640Michele De Carli: Okay. It's fine. Okay, this is the temperature or supply temperature that you need to provide to the previous step. The
33:29:850Michele De Carli: of course.
33:34:400Michele De Carli: What should you consider? This is the power which is
33:42:250Michele De Carli: related to the upper space. But then you have more system.
33:46:120Michele De Carli: Okay, these losses can be seen here. Okay, so the losses are included.
33:55:330Michele De Carli: No, the losses are included here.
33:59:830Michele De Carli: Okay, so these are the. So here, this is the the in this case.
34:08:280Michele De Carli: There, I told you, we have a system, our schematic skills.
34:15:179Michele De Carli: conductive, sorry conductive resistance above the pipe and below the right. So what we are doing here we are considering the linear resistance between the pipe level and the lower. Okay? And we need to consider that the water okay, the power that we need to provide on the pipe
34:42:130Michele De Carli: is the sum of the thermal output in the room plus the losses. Okay, so this is the raw power which has to be provided by the pipe. Part of this will be useful. Part of this will be lost in the in the lower space. Okay.
34:59:100Michele De Carli: so this is the overall. Power. Okay? And
35:06:10Michele De Carli: here you can see the number of secrets, as your colleague has said, Okay, if you are increasing the amount of pipe line. Okay? If the the the length of the pipe is greater. Okay? Then you will also, of course, the type
35:30:770Michele De Carli: is the heir of your
35:33:210Michele De Carli: drawer, divided by the pipe spacing. Okay, this is the left, the row left of your bikes. Okay, back to you. Okay, and this is calculated here. Okay? And based on the
35:55:610Michele De Carli: where there's a much lower rate.
36:01:820Michele De Carli: Oh, yeah, that's really
36:05:910Michele De Carli: they're going.
36:07:720Michele De Carli: Okay. It doesn't matter.
36:10:520Michele De Carli: Anyway.
36:12:681Michele De Carli: Okay, no, I I think it is based on the velocity that you need. Yes, this velocity is here. Okay, so this is the velocity.
36:20:420Michele De Carli: And
36:29:505Michele De Carli: okay.
36:30:880Michele De Carli: So here, you see, in that case the overall.
36:37:270Michele De Carli: So this is the Delta PIN. Okay, that you have in case you have one. So 14. We usually use for hydraulic system. Okay, we usually talk about meters or column water. Okay, water column meters. Okay?
36:57:280Michele De Carli: And and in this case you can see it's 14. Okay.
37:07:50Michele De Carli: do you think it's high or low or right value?
37:11:900Michele De Carli: It's like one by.
37:16:810Michele De Carli: Yes, it's okay. So the usual
37:21:370Michele De Carli: value. Okay, you should not exceed or you can reach. You can even go slightly. More is one
37:28:750Michele De Carli: meter per circuit. That is the I mean
37:33:370Michele De Carli: maximum allowed. Okay? Usually roughly saying, Yeah, one meter in the pipes, one meter in the manifold okay? And you can tell about. But you will see that better.
37:47:710Michele De Carli: So you can see here you have then, 2 secrets. In case of 2 secrets. You have 2 water liter of water column. Still you can. They can be greater great value. And here you can see with 3 secrets is 0 point 6 9. Okay, so it would be better to use 3 secrets in this case. Okay, to be below the value. Okay? Okay. So you have to do that room by room. Okay? Room by room
38:17:620Michele De Carli: and then finish development.
38:29:260Michele De Carli: Yes, but let's say what happens. If you have a
38:34:930Michele De Carli: I mean, you will never have the same water temperatures in the circuits.
38:40:670Michele De Carli: Let's say that we have participants.
38:46:940Michele De Carli: We have 31, 2328, and 26.
38:53:390Michele De Carli: We do the average temperature, and we will never reach 20 degrees in the most critical.
39:06:130Michele De Carli: Okay, the highest. So we have to keep the highest.
39:10:820Michele De Carli: So what you have to do you check, which is the title to each room, hey?
39:17:00Michele De Carli: At the end I want to remind you that you have a manifold
39:20:580Michele De Carli: the same temperature for all the radio systems. So you have to set the figure maximum one. So what you have to do then, is to recalculate the other ones
39:32:520Michele De Carli: fixing the same temperature, and in that case you will change the the directory.
39:42:350Michele De Carli: But you will. You will change the letter. T, okay, so basically what you will do in practice, you will work on these kilometers that I show you right. Not in the kilometer, the kilometer. You will measure that. But you, you remember there is this base time, so you will use the screw. Okay? And you will close a little bit, so you will decrease the flow rate and you will okay, increase the Delta
40:11:750Michele De Carli: Yikes.
40:14:140Michele De Carli: Right?
40:15:90Michele De Carli: Interesting.
40:17:131Michele De Carli: Do you feel comfortable with that? So then, and yes, for the in the very
40:40:780Michele De Carli: 2 or 2, because otherwise there is a lot of people coming. I have.
40:46:720Michele De Carli: Okay. So let's say that you should have one manifold per phone. Okay? Which doesn't mean that you have 40 secrets.
41:18:790Michele De Carli: The living in the bathroom.
41:21:825Michele De Carli: Yes, but
41:24:780Michele De Carli: I mean yes, in the bathroom you will use also a radiator which will be fed by the same temperature, and in principle you should size the radiator. According to this temperature, and by maxing the curve of the radiator.
41:42:830Michele De Carli: if you want, you can do that. Okay, from next year you will be obliged to do that. Okay, but this is the next year. So you're obliged to do that now. Okay, yes. If you want to do that, you can do that. Okay? So in the bathroom you can consider if you don't have today, because this will be well. The bathroom is usually there.
42:07:340Michele De Carli: The the has the latest temperature. Okay, anyway, if it exceeds, let's say, if it exceeds the 90 watts per centimeter. Okay, you can keep 35 degrees the supply temperature, and you can size if you want, or you can say I would size an additional radiator working at 35 degrees, and you should use the C Delta tn equation in order to
42:33:780Michele De Carli: check, which is good in this case.
42:36:990Michele De Carli: if you want, you can select radiator, if not right.
42:42:900Michele De Carli: Okay. I think it's all what I wanted to show you is, what happens if you have instead of no, this is too much. Okay. So sorry.
42:57:970Michele De Carli: What matters. If you have 30 watts per square meter, which is 10 watts per cubic meter. Okay.
43:05:00Michele De Carli: in this case I want to show you that the power that you need
43:10:850Michele De Carli: would be 33. Okay? So in this case you can go with the 26. Okay? And let's say 27.
43:19:820Michele De Carli: Okay, so you can see that the heating
43:24:417Michele De Carli: to make a house a new house. You might need 25 to 27 degrees actually like that. Okay? And you think about how big the CPU impact is if you run with this temperature.
43:40:270Michele De Carli: Oh.
43:44:00Michele De Carli: okay, alright. So this is what you have to do. Okay, I am available for
43:55:710Michele De Carli: your questions. Okay, should we fix next week a question and answer meeting?
44:03:160Michele De Carli: Yes, yes.
44:05:400Michele De Carli: Okay, we will do that.
44:07:90Michele De Carli: Okay, anyway.
44:10:570Michele De Carli: So I think it's all for the radiance system design.
44:17:150Michele De Carli: and so I can leave the floor to.
44:24:900Michele De Carli: I stopped the cooking.