Frikkie
28-02-2012, 10:08 PM
Hello to everyone, it's been long since I have been here and I see things look a little different. Maybe this is because I have a new computer screen which is wider, I'm not sure. It's good to catch up with the new threads and see some of the guys I recognise are still around and I would ask please for some advice.
I would like to get some information about the electrical consumption of commercial refrigerating units (glass door Coke type fridges), mainly what the difference in power consumption would be between a condensing unit that is clean and one where the condensor that is blocked.
I'm not a technical refrigeration person but I know the unit would run high head and be inefficient, I would like to know exactly how inefficient and how much more it would cost to run on the power bill.
Would a blocked unit have a lower power factor as well so would a person being billed in KVAR be more punished than someone paying by the Kilowatt?
Would the blocked condensor cost more in power if the supply was single phse or if it was 3-phase.
Are there any peer reviewed studies on this subject I could read? I'm interested in units between 1/3HP and 2HP.
I know there will be lots of unknown variables that will affect the results but I'm just looking for general information. The ***** type would be R12, 134A, or 22. The fridge temperature would be maybe set at 3 Celsius and the ambient climate would be between 15 and 45 Celsius and 85% humidity. When I am saying the condensor is blocked pleaseassume it's running in the zone just before any HP protection or Klixon would shut it down or just before the compressor damages the valves. I'm not sure what other pointers you would need to help with reply, I hope this enough.
Thank you in advance,
Frikkie.
I would like to get some information about the electrical consumption of commercial refrigerating units (glass door Coke type fridges), mainly what the difference in power consumption would be between a condensing unit that is clean and one where the condensor that is blocked.
I'm not a technical refrigeration person but I know the unit would run high head and be inefficient, I would like to know exactly how inefficient and how much more it would cost to run on the power bill.
Would a blocked unit have a lower power factor as well so would a person being billed in KVAR be more punished than someone paying by the Kilowatt?
Would the blocked condensor cost more in power if the supply was single phse or if it was 3-phase.
Are there any peer reviewed studies on this subject I could read? I'm interested in units between 1/3HP and 2HP.
I know there will be lots of unknown variables that will affect the results but I'm just looking for general information. The ***** type would be R12, 134A, or 22. The fridge temperature would be maybe set at 3 Celsius and the ambient climate would be between 15 and 45 Celsius and 85% humidity. When I am saying the condensor is blocked pleaseassume it's running in the zone just before any HP protection or Klixon would shut it down or just before the compressor damages the valves. I'm not sure what other pointers you would need to help with reply, I hope this enough.
Thank you in advance,
Frikkie.