I along with my friends have been doing experimental analysis on VCRs by adding heat before and after compressor for our fourth year project. We have been observing that COP of our system is greater than 10. We have been conducting experiment at around 16 degree ambient temperature. Is it even possible for COP to be that high or is it that our system is faulty?
A COP exceeding 10 for a vapor compression refrigeration (VCR) system operating at 16 degrees Celsius is highly unlikely in practical applications. There should be either a miscalculation or a potential issue with your experimental setup.
The maximum achievable COP for a VCR system is determined by the Carnot efficiency, which depends on the temperature difference between the evaporator and condenser. Even with ideal conditions and perfect insulation, achieving a COP of 10 at a 16 degree ambient temperature would require an evaporator temperature close to absolute zero, which is practically impossible.
Use established thermodynamic models for VCR systems to compare your experimental results with expected COP values