Condensing Temperatujre

[sioz1]

Hello guys ,

My question which is about condensing temperature that, When I selecting condenser I writing Condesing temperature 45°C and evopretor temperature 7° (for R410A)
If I write 50°C instead of 45°C, I cansee capacity of condense ris increasing, but what is changing for for compressor , how does change compressor efficinnt?
or what is changing for the system?

[mikeref]

Higher Ambient temperature means there is a limit to Condenser outlet Liquid temperature. Condenser outlet ( Liquid Line) can not be below Ambient with an air cooled Condenser. Lower outside air temperatures lowers the Liquid temperature and Pressure. Lowers power needed to run the Compressor.

[sioz1]

Hello again , I mean that;
R410A condensing temperature 48°C, evoperating temperaure 7°C , superheat 3°C and subcooling 5°C

I have a evoprator and my air entry temperature 26,5 I am selecting a evoperator which is capacity 11,5 kw ann air outlet temperature 17,3°C
according evoperator capacity I am selecting compressor capacity 13,75, power input 3,64

My condender should be 3,64+11,5 =15,14kW

according to theese condition (R410A condensing temperature 48°C, evoperating temperaure 7°C , superheat 3°C and subcooling 5°C) I can select a condenser and its capacity 15,3 but it is becoming a bit large (number of row is a bit big)
When ı changing condensing temperature and when I did its 50°C condenser capasity is inceasing and ı can reduce its number of row.

My question when I did 50°C there will be change for compressor?

[mikeref]

Higher ambient ( 45 to 50C ) requires a larger capacity Condenser. That could mean a larger surface area or an increase of rows meaning condenser density. Higher ambient reduces the ability of any refrigeration or Air-conditioning condensers.

50 Degrees C Ambient would push Head pressure to 2840 Kpa. ( 412+ PSI ) using R410a. That figure is beyond anything i have had to service. Having said that, i would have a Bypass from the liquid line to the Suction inlet using a TX rated 01 while using the same Compressor.

[sioz1]

Higher ambient ( 45 to 50C ) requires a larger capacity Condenser. That could mean a larger surface area or an increase of rows meaning condenser density. Higher ambient reduces the ability of any refrigeration or Air-conditioning condensers.

50 Degrees C Ambient would push Head pressure to 2840 Kpa. ( 412+ PSI ) using R410a. That figure is beyond anything i have had to service. Having said that, i would have a Bypass from the liquid line to the Suction inlet using a TX rated 01 while using the same Compressor.

and I see that, When I select condenser and when I write condesing temperature 50°C instead of 45°C the compressor power input is increasing althought its capacity reducing .

I have a questing if you answer I'd be happy ;
whats is difrence between using one and two compressor ?

[Magoo]

The higher the compression ratio of a compressor the more energy consumed to achieve design SST and less effective cooling capacity, the COP drops as well.