Ventilation Duct Capacity: Airflow for fi 100 & fi 125 at 5m/s & 8m/s, Noise & Home Comfort

Hello.
I would need some information about the airflow for the ducts:
1. fi 100 5m / s and 8m / s
2. Fi 125 5m / s and 8m / s

Is 8m / s very noisy? Is it possible to function at home during the day, is it possible to sleep?

Greetings.

1. The air flow for the 100 and 8m / s duct gives us 226m3 / h
for 5 m / s we have 141 m3 / h

2. The air flow for the channel fi 125 and 8 m / s gives us 353 m3 / h
for 5 m / s we have 221 m3 / h

In my opinion, 8 m / s in the channel is definitely too much, I would aim for the maximum speed in the channel to be no more than 5 m / s

Hello.
Thank you for your answer.
There is about 900 m3 / h to be embossed. 5kw air conditioning on the ventilation system is to be installed.
Several concepts are considered, none is perfect. From this it follows that the speed would be about 7.5 m / s As it relates to the volume of the monoblock air conditioner.

Why do you have such large flows of 8m / s, it is impossible to sit still. Such speeds are only in gastronomy, the extractors are 10 m / s. What is the cubature of these rooms and what are your channels?

Premises it
12m2 - fi 100
13m2 fi 100
15m2 fi 100
25m2 fi 125
As for the noise, it would only be the rush of air, motors etc would not be heard. Multi splits are also quite difficult to do. Besides, it is also supposed to heat up during the transition period.

Something's wrong with me. And I don't really know how your vents are open. I understand that you have fi 250 or fi 300 from your recuperator and it spreads to smaller channels?
pom. 1 28 m3 the standard says about 2-3 changes per hour. I assume 4, it comes out to me 115 m3 / h, i.e. the speed in the channel will be 4.1m / s, further counting is:
meas.2 31.2m3X4 = 124m3 / h = 4.4m / s
meas. 3 36.0m3X4 = 144m3 / h = 5.1m / s
meas.4 60.om3X4 = 240 m3 / h = 5.4m / s
The sum of the efficiency of the device is approximately 624 m3 / h and the initial channel should have a diameter of 300. Of course, these are rough calculations without counting air resistance on fittings, reductions, etc. You can take the number of replacements times 5 for the room. 1, the speed will be 5.4m / s

The house has 110m2. The recuperator is an optimal 400. The norms are the norms, but I only want a maximum efficiency of 30%, and it's already enough. The initial channel is fi 200, and then we go down to the diameters I gave.

You should definitely consider buying at least one 1 m silencer on the supply air duct.

Where did you get these 900 m3 / h from?
The Dospel optimal 400 recuperator at 150 Pa has a capacity of about 400 m3 / h, at least that's what I read in the DTR.
Unless I missed something.

The muffler will not help here 5-6 m / s that's a lot, let alone 8 m / s Forget that you will sleep with such noise from the TV you will not even watch. I have a bad feeling about this

Dospel has 400, but I would like to plug in an air conditioner there on the air supply, which is blowing about 900m3.

Clever, but I don't know if they're too overcomplicated.
You have to take into account that in such a solution you will blow air into each room at a temperature of about 8-10 degrees C. What about the comfort of temperature in rooms with lower heat gains? Some will be supercooled and others may still not reach the expected temperature.

It would be wiser to install a small freon cooler just behind the recuperator, which would cool the air to the optimal 20 degrees C.
Then, in the rooms where you want to have cooling, install splits.

You combine it nicely, but it is difficult to do, apart from the problems that colleagues have already mentioned, remember about the condensation of moisture when you start blowing the air with an anemostat at 10 degrees Celsius, then water will start to condense on it. As if the supplied air is already dry because the moisture is left on the evaporator, but still water flows from the diffusers :)

If you connect the supply fan with an air conditioner with a capacity of 900 m3 / h in series, you will have the effect of such a sound at home as if you were sitting in an airplane on the wing, it is impossible to live in such conditions.

From my practice in home recuperation at a demanding user, 4m / s on the bus is max, and 2.5m / s in the branches to the rooms, preferably below 2

I agree with lukaszkot89 install splits in those rooms that you want to cool.

Once I did such an installation that the circulating air in the building was cooled, but it required a second ventilation system, running new ducts, etc. It works so that recuperation itself, and a separate air conditioning installation with an air flow 5 times greater than that of the hand.

Remember the comfortable air supply temperature from the air-conditioning is max 8K cooler than the temperature in the room, and the safe temperature is 5K

thug10 wrote:

Once I did such an installation that the circulating air in the building was cooled, but it required a second ventilation system, running new ducts, etc. It works so that recuperation itself, and a separate air conditioning installation with an air flow 5 times greater than that of the hand.

5x more, it must have been quite loud?
Was the air conditioner cassette or normal + additional fans? how many rooms did it include?