Converting Vacuum Cleaner Suction Power: kPa to Watts (W) & Comparing Manufacturer Specs

Hello

I have a problem with converting kPa to W. I am interested in it because some manufacturers of vacuum cleaners give it in different units and naturally I wanted to compare it. Because some people write, for example: 27 kPa suction power and others write 200 W.

If anyone knows how to convert it, or some calculators on the network, he knows, I will gladly get to know them because I only found formulas that did not contribute much to my message :(

If the topic is not in the right place, please put it in the right place, I will be very grateful for any help.

Cuba

In traditional construction of devices, the suction power will be closely related to the power of the device, and in individual models it should be similar. The electrical power of the devices is always stated on the rating plate or in the device specification. In order not to get paranoid, you need to buy a product of a trusted company and follow the principle that the suction power does not come from heaven, but the power of the electric motor, although it depends on the type of turbine construction, but a stronger turbine will not be pulled by a weaker engine, the suction power may be reduced o filtration systems silencing or increasing particle filtration.

no clear information, thank you. but it still bothers me if there is any conversion factor.

because all I found was something like this:

Quote:
"No. A kiloPascal is a measure of pressure, not power or work. It has 1 kPa = 1000 N / m ^ 2, and 1 Watt = 1J / s = 1 Nm / s. It has 1 kPa = 1000 N / m ^ 2 while 1 Watt = 1J / s = 1 Nm / s. Works must be measured in units of distance * force, like Nm or lbf ft. Work must be measured in units of force * distance, like Nm or ft lbf. Watts measure power which is work / time. "

generally this is the answer to my question, but does anyone know any easier way ??

thanks for all the help anyway

There is no answer to this question, because only kilopascals into watts cannot be calculated without additional information. kPa is not a unit of power (or even "suction power", kPa is a unit of pressure), so you need to know other parameters to get watts out of it. The conversion you are looking for can only work for example horsepower to watts, where there is only one factor. If the vacuum cleaner were a physically perfect device, it would be possible to obtain infinite pressure value with zero power input. In practice, you have to constantly supply power because there are air leaks and the turbine is not perfect. In summary, what the manufacturer calls suction power can be expressed in pascals, and motor power can be expressed in watts, and one is related to one another but contains many unknowns and is practically uncountable. You can only look for some kPa vs. W for some vacuum cleaner (created on the basis of measurement data, not calculations), and to some extent be guided by it, but for different vacuum cleaners such a graph will be slightly different (and it will not be a linear function for sure).

c4r0 wrote:

If the vacuum cleaner were a physically perfect device, it would be possible to obtain infinite pressure value with zero power input.

That is, the ideal engine without fuel accelerates to the speed of light? What is this new para-science?

c4r0 wrote:

In practice, you have to constantly supply power because there are air leaks and the turbine is not perfect.

A colleague deigned to confuse the turbine with a vacuum pump. Minimal leaks have negligible influence here. I suggest you read the basics of blowers.
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Let me refresh the topic. How is it with this "airWatt"? I found information that it is the product of the negative pressure (kPa) and the air flow in liters per second. For example, a 150kPa and 10l / s vacuum cleaner has a suction power of 1500airWatt.
Someone can confirm or deny?

c4r0 wrote:

If the vacuum cleaner were a physically perfect device, it would be possible to obtain infinite pressure value with zero power input.

I cannot agree, when it comes to suction, it would be possible to obtain at most a suction value equal to the atmospheric pressure, i.e. absolutely about 1013 hPa, which corresponds to about 10 m water column. For this reason, suction pumps cannot suck at any depth.

Let's leave the lapsus @ c4r0 . So how is it with these airwatts?

BK_klp wrote:

Let me refresh the topic. How is it with this "airWatt"? I found information that it is the product of the negative pressure (kPa) and the air flow in liters per second. For example, a 150kPa and 10l / s vacuum cleaner has a suction power of 1500airWatt.
Someone can confirm or deny?

I confirm https://en.wikipedia.org/wiki/Airwatt