I just estimate the actual thermal performance of an air conditioning Airton. In calculating the actual COP.
The external battery of this heat pump is installed in a greenhouse: https://www.econologie.com/forums/clim-rever ... 12393.html
The results are quite impressive for a measure (the stabilized exceeds 5 COP), for the rest it fits with the manufacturer data !! So all good!
datasheet:
Measurement conditions
Outdoor T ° (in the greenhouse): 36 ° C / 48% RH
° Indoor: 25.2 ° C
temperature set aircon: 32 ° C (max to avoid regulations)
blowing area of the air conditioning: 0.0536 m²
Prince measures
Principle: it is estimated the power of the air blown by the air conditioning by measuring flow and temperatures.
Measurements made with this anemometer which gives the velocity and T ° instantaneous airflow.
Protocol: I 4 measurement points along the fan, as perpendicular as possible to the flow, I note and T ° km / h at each point.
T ° should therefore stabilize I measure 1 minute after moving the anemometer.
We take the averages of these 4 points and we obtain a measurement of volume flow and "hot" T °.
I corrects the flow rate with the density of air (which varies greatly between 25 and 40 ° C) to obtain the mass air flow.
With indoor T °, it is a heat balance and we get the power restored heater.
I measure the electrical power consumed by a power meter on outlet
COP is obtained by dividing the 2!
Measures (performed at 10 minute intervals beginning at T = 10 min and in chronological order)
1 measure:
Pu = 1032W
T ° = inner 25.2 ° C
T ° = Hot 33.38 ° C
4.72 blower speed = m / s
Volume flow = 0.2527 m3 / s
Density at 32.5 1.155 ° C = kg / m3
( according to http://fr.wikipedia.org/wiki/Masse_volumique_de_l%27air )
Mass flow = 0.2919 kg / s
Pc 1004 air = J / kg. ° C
Power output W = 2396
COP = 2.32
2 measure:
Pu = 950W
T ° = inner 25.2 ° C
T ° = Hot 36 ° C
4.35 blower speed = m / s
Volume flow = 0.2330 m3 / s
Density at 35 1.146 ° C = kg / m3
Mass flow = 0.2670 kg / s
Pc 1004 air = J / kg. ° C
Power output W = 2889
COP = 3.04
3 measure:
Pu = 650W
T ° = inner 25.2 ° C
T ° = Hot 39.4 ° C
4.19 blower speed = m / s
Volume flow = 0.2245 m3 / s
Density at 40 1.127 ° C = kg / m3
Mass flow = 0.2530 kg / s
Pc 1004 air = J / kg. ° C
Power output W = 3593
COP = 5.53
In short it is good: the best COP is obtained in the most steady (after 30 minutes of operation). I would do one measure after 1 hours of operation and in slightly different conditions.
I think that the presence of the external battery in a greenhouse at 36 ° C is not unrelated to this "boost" of the COP !!
COP actual measurement air conditioning Airton Inverter
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COP actual measurement air conditioning Airton Inverter
Last edited by Christophe the 19 / 07 / 13, 10: 16, 1 edited once.
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- chatelot16
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a cop 5 it sounds good ... but with a superior outdoor temperature at the indoor temperature, the cop should be infinite!
the heat should go alone without the need to pump!
the heat should go alone without the need to pump!
Last edited by chatelot16 the 12 / 07 / 13, 14: 21, 1 edited once.
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It is not wrong Chatelot! Myself have done or what?
The problem is that the wall between the greenhouse and the room or the CAP is now ... well insulated!
The problem is that the wall between the greenhouse and the room or the CAP is now ... well insulated!
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Re: COP actual measurement air conditioning Airton Inverter
Christophe wrote:The results are quite impressive for a measure (the stabilized exceeds 5 COP), for the rest it fits with the manufacturer data !! So all good!
(...)
I think that the presence of the external battery in a greenhouse at 36 ° C is not unrelated to this "boost" of the COP !!
Hello
you do not know
the 'cop constructreur is normalized to 7 °?
(Part of course)
Standard: EN 14511-2
*** http://www.energy.ca.gov/title24/2008st ... 007%29.pdf ***
compressed air at 36 °,
your machine is not made to ca
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"Everything has a price has no value" Nietzche
Torture for Dummies
Forbid to express the idea that the field is acceleration (magnetic and gravitational)
And you get your patent mental torture option executioner successfully
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And then Hic? What's the difference?
What matters are the actual performance observed no? To confirm whether the installation of the outdoor unit in a greenhouse!
Chatelot's remark was more relevant than yours!
And I surely no thermal lessons from a guy who mix kW and kWh ... (I say this because in his previous post I deleted Hic called me ignorant of red and more. ..)
In fact the red is for moderation, you're not speaking I think? if?
It is not air which is compressed to 36 ° C but the fridge gas ...
Anyway ... this confirms it ...
What matters are the actual performance observed no? To confirm whether the installation of the outdoor unit in a greenhouse!
Chatelot's remark was more relevant than yours!
And I surely no thermal lessons from a guy who mix kW and kWh ... (I say this because in his previous post I deleted Hic called me ignorant of red and more. ..)
In fact the red is for moderation, you're not speaking I think? if?
It is not air which is compressed to 36 ° C but the fridge gas ...
Anyway ... this confirms it ...
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- chatelot16
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if the heat pump was reverssible thermodynamically it should in this case generate electricity!
the pressure in the evaporator in the greenhouse is superior to the pressure in the condenser in the house ... so it is no longer a need but a compressor motor freon vapor, which produces mechanical energy
although the rest of the Pac Nor should: to return the liquid inside to the outside, the pressure regulator or the capillary does not work! would require a pump! as the fuel pump of a steam engine!
the pressure in the evaporator in the greenhouse is superior to the pressure in the condenser in the house ... so it is no longer a need but a compressor motor freon vapor, which produces mechanical energy
although the rest of the Pac Nor should: to return the liquid inside to the outside, the pressure regulator or the capillary does not work! would require a pump! as the fuel pump of a steam engine!
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Chatelot thin, got screwed lol!
Yes, it still consumes (but consumption has fallen precipitously!)
I would have to redo a consumption monitoring test only!
In any case it works as manual says that above 25 ° C outdoor heat pump function (heating) should not walk ...
Yes, it still consumes (but consumption has fallen precipitously!)
I would have to redo a consumption monitoring test only!
In any case it works as manual says that above 25 ° C outdoor heat pump function (heating) should not walk ...
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Re: COP actual measurement air conditioning Airton Inverter
Hic wrote:Christophe wrote:The results are quite impressive for a measure (the stabilized exceeds 5 COP), for the rest it fits with the manufacturer data !! So all good!
(...)
I think that the presence of the external battery in a greenhouse at 36 ° C is not unrelated to this "boost" of the COP !!
Hello
you do not know
the 'cop constructreur is normalized to 7 °?
(Part of course)
Standard: EN 14511-2
*** http://www.energy.ca.gov/title24/2008st ... 007%29.pdf ***
compressed air at 36 °,
your machine is not made to ca
This is not really a problem if ventilation of the condenser is large enough, more if the air conditioner has a high-pressure safety arrêtra it simply to avoid the compressor pump the liquid.
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Criticism is good if added to some compliments.
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Criticism is good if added to some compliments.
Alain
Christophe wrote:Chatelot thin, got screwed lol!
Yes, it still consumes (but consumption has fallen precipitously!)
I would have to redo a consumption monitoring test only!
In any case it works as manual says that above 25 ° C outdoor heat pump function (heating) should not walk ...
So it has a high-pressure safety!
As I said above if ventilation of the condenser is large enough it is not a problem but if you sure that decreases the ventilation has probably 2 or three speeds it will stop.
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Stepping behind sometimes can strengthen friendship.
Criticism is good if added to some compliments.
Alain
Criticism is good if added to some compliments.
Alain
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