R134a with components made for R134a is just as good and better than R12. Retrofiting an R12 system to R134a is the issue and the answer is heat transfer and component design. Makes sense.
134 does not cool as well at low speeds or idle as r12. seems like over 40mph is where the condenser gets enough airflow to cool really well. you need a much larger condenser or more efficient design to compensate. i predict the future of car ac will be electric variable speed compressors with a plate and frame air to water condenser.
As for the more efficient design I agree. Most newer cars do have a better design and the evaporator is a bit larger, yes. Having said that, it's a small price for the eco-friendlier 134.
R134a with components made for R134a is just as good and better than R12. Retrofiting an R12 system to R134a is the issue and the answer is heat transfer and component design. Makes sense.
Thanks Nice idea
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134 does not cool as well at low speeds or idle as r12. seems like over 40mph is where the condenser gets enough airflow to cool really well. you need a much larger condenser or more efficient design to compensate. i predict the future of car ac will be electric variable speed compressors with a plate and frame air to water condenser.
As for the more efficient design I agree. Most newer cars do have a better design and the evaporator is a bit larger, yes. Having said that, it's a small price for the eco-friendlier 134.
Why is the r134-a not good with tue older r-12 systems ?